Search results “Natural product of chemistry”
Natural Products Chemistry: Major classes of medically relevant compounds from plants
In this lecture for the Emory course "Botanical Medicine and Health", Dr. Cassandra Quave discusses some of the major classes of medically relevant compounds from plants. After this lecture, students should be able to answer the following questions: 1) What are the major classes of medically relevant natural products derived from plants? 2) What are plant secondary metabolites and why do plants make them? 3) How do indigenous people use sensory clues from plants to understand their chemistry and potential for medicinal use? DISCLAIMER: Content provided in this video and the YouTube TeachEthnobotany site is for educational purposes only and should not be construed to be medical advice, diagnosis or treatment. This content is not a substitute for professional medical or healthcare advice, diagnosis or treatment, and may not be used for such purposes. The information about herbal medicines and drugs in this video and the TeachEthnobotany site is general in nature. It does not cover all possible uses, actions, precautions, side effects, or interactions of the medicines mentioned, nor is the information intended as medical advice for individual problems or for making an evaluation as to the risks and benefits of taking a particular drug or botanical/herbal medicine. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical question or condition.
Views: 17469 TeachEthnobotany
SciFinder Science in the News - Natural Product Chemistry (Part 1)
In our first Science in the News podcast series, learn how SciFinder can help you explore the ever-evolving and important field of natural product chemistry. Watch part 1 now and stay tuned for more Science in the News podcasts coming soon!
Views: 5300 CAS
Natural product Chemistry : Carbohydrates, Alkaloids, Amino acids, Nuclic Acids, steroids, terpenes
Hey guys, . . Check My blog and get Books and Study Material .... https://easychemics.blogspot.com/2019/01/natural-product-chemistry-what-to-read.html?m=1 . . My facebook group link : https://www.facebook.com/groups/2221891421155683/ . . follow me on facebook... https://www.facebook.com/john.goutam.5 follow me on instagram...https://www.instagram.com/22gotu . follow me on twitter... Goutam Pal (@GoutamP89948432): https://twitter.com/GoutamP89948432?s=09 . . Thank You.
Views: 802 Easy Chemics
6 Plants and Natural Products Chemistry ch3 12th
https://youtu.be/C0HYJtRVBpA https://youtu.be/C0HYJtRVBpA https://youtu.be/C0HYJtRVBpA
Trick For Terpenoids for iit jam
My Unacademy account (where i have uploaded my lesson for all chemistry entrance exam... you can follow me at this link.... https://unacademy.com/user/jamchem2017-9061 chemical bonding full lecture link...... https://unacademy.com/lesson/born-lande-equation/16NUJJSC coordination chemistry full lecture link... https://unacademy.com/lesson/overview-in-hindi/7V8N8KAX Organometallic compounds full videos link... https://unacademy.com/lesson/overview-in-hindi/2RU7O1KS terpenoids are very important for iit jam student P - block element link... https://unacademy.com/course/hindi-p-block-boron-and-carbon-family-jam-jee/7FZJZN6L
Views: 17872 Jam Chem
1  structure elucidation of natural products- Classical chemical methods
My 1st lecture in the spectroscopy series. It deals mostly with structure elucidation of natural products and its significance. Classical chemical methods of structure analysis, its advantages and disadvantages are discussed.
Natural Product Discovery
Associate Professor Thomas Ostenfeld Larsen, who heads the research group Natural Product Discovery at DTU Systems Biology talks about the group’s discovery and engineering of novel natural products from an array of organisms. Products that may be used to solve some of the challenges society face today. One example is a very large project where they sequence all known species in genus aspergillus. This will give them first hand access to genomics driven discovery of silent gene clusters and engineering of these to produce the potentially new drug lead candidate of the future.
Views: 682 Mette Haagen
Psychedelic natural products and their contributions to medicinal chemistry
XIV. DAVE NICHOLS @ ESPD50 - June 8, 2017 ESPD 50 [AFRICA, AUSTRALIA & SOUTHEAST ASIA]: From ‘there’ to ‘here’: psychedelic natural products and their contributions to medicinal chemistry (keynote) In 1967, a landmark symposium entitled Ethnopharmacologic Search for Psychoactive Drugs was held in San Francisco, California. It was the first international, interdisciplinary group of specialists – from ethnobotanists to neuroscientists – who gathered in one place to share their findings on the use of psychoactive plants in indigenous societies. Follow-up meetings were intended to be held every ten years, but the War on Drugs intervened. On the 50th anniversary, an international group of specialists gathered again to share their perspectives on past, present, and future research in ethnopharmacology. - ESPD50.com https://vimeo.com/239338248
Views: 181 Entheonaut
Are Natural Beauty Products Better? | Lab Muffin Beauty Science
“Are natural beauty products better for you?” “Should I try to avoid chemicals in my beauty products?” These is probably the most common question I get asked, so here’s your answer! I talk about: * What exactly is a chemical? * What’s the difference between natural and synthetic chemicals? * Are natural ingredients safer? * Should you avoid ingredients you can’t pronounce? * Should you reduce the number of chemicals you’re exposed to? ------------------------------------- Want smooth, glowing skin? Grab a free copy of the Essential Guide to Exfoliation! https://labmuffin.com/exfol ------------------------------------- Fun facts: This topic was the reason I started my blog! I dropped a laptop on my head while making this video and gave myself a concussion. It took me about 20 takes to get myself to say all those chemical names properly... RELATED POSTS Natural vs Chemical: Which Is Better? http://bit.ly/lab-muffin-natural Should You Be Avoiding Parabens? http://bit.ly/lab-muffin-parabens Should I Buy 3-Free, 5-Free, 6-Free or 7-Free Nail Polish? http://bit.ly/lab-muffin-3-free ---SKINCARE GUIDE--- The Lab Muffin Guide to Basic Skincare is here! Find out more: https://labmuffin.com/skin FOLLOW: Blog: http://labmuffin.com Facebook: http://www.facebook.com/labmuffin Twitter: http://twitter.com/labmuffin Instagram: http://instagram.com/labmuffinbeautyscience Pinterest: http://www.pinterest.com/labmuffin
Natural Products
Chemical and Spectral approach to Natural Products In early time, element detection , percent composition and determining its empirical formula Modern technique: Includes six inquiries: Physical properties Classification by solubility Classification tests by functional groups Chromatographic analysis Spectroscopic analysis Synthesis of solid derivatives
Biosynthesis of polyketide natural products
Biosynthesis of polyketide natural products; Chapters: 0:00 - Introduction; 00:45 - Aims and objectives; 04:45 - Biosynthesis of natural products; 08:00 - Biosynthesis of natural products; 10:00 - Making the polyketide chain; 15:45 - Coenzyme A; 29:30 - The missing link; 32:15 - Folding of the poly-beta-ketoester (C-C bond); 40:15 - Claisen or aldol;
Views: 15053 DTUdk
ShareBiotech | Paul Murphy, NUIG | The Chemistry Of Natural Products
3 Sep 2012; Athlone Institute of Technology hosted presentations concerning new technologies in Natural Products. The meeting was focused on SME members of the Natural Products Biotechnology sector in Ireland a sought to clearly identify company perceptions of deficits regarding partnerships, collaborations, access to core facilities, required skills, training and effective networking within Ireland, the Atlantic Region of the EU and beyond.
Views: 2048 Sixsem
Jon Clardy | Chemical Biology and Natural Product Based Drug Discovery
Prof. Jon Clardy obtained his BS degree from Yale University and his PhD from Harvard University – both in chemistry. He has served on the faculties of Iowa State University and Cornell University, and he is currently the Hsien Wu & Daisy Yen Wu Professor of Biological Chemistry and Molecular Pharmacology at Harvard Medical School where he has been for fifteen years. His research has focused on naturally occurring biologically active small molecules, their macromolecular targets, and their roles in biology and medicine. He research was recognized early in his career with academic prizes as a student and awards from both the Alfred P. Sloan Foundation and the Camille and Henry Dreyfus Foundation for beginning scholars. More recently he was elected as a Fellow to the American Association for the Advancement of Science, the American Academy of Arts and Sciences, and the Academy of the American Society for Microbiology. He has also served as both a Department Chair and Associate Dean at Cornell, and at Harvard he founded and co-directed the Chemical Biology Graduate Program. He has taught throughout his career in a variety of contexts from large undergraduate lectures in beginning organic chemistry, for which he was awarded the Clark Teaching Award from Cornell’s College of Arts and Sciences, lecture courses for graduate students, and lecture courses for non-science majors. He co-taught Molecules of Life Course in Harvard’s General Education curriculum for ten years, and he currently teaches a small seminar for first-year undergraduates.
Views: 420 TCM Symposium
The Role of Flash Chromatography in Natural Product Research
Natural Product Chemists are at a disadvantage when purifying active compounds from extracts because, in most cases, the compounds are unknown to the chemist until they are purified. The combination of automated flash chromatography and their columns with new detection techniques allows chemists in this field to quickly determine which columns are suitable for purifying their compounds, and also provide early recognition of previously discovered compounds. This webinar discusses column screening strategies including Wide Polarity Range chromatography, and detection techniques that allow a user to quickly and simultaneously determine columns useful to purify a compound, suggest fractions to be combined for screening, and screen previously identified compounds. Researchers working in Pharmacognosy, Natural Products, and Food and Flavor chemistry would benefit from the techniques presented in this webinar. Description
Natural Product Chemistry
A student in the research group of Armen Zakarian shows us the solvent stills that are used during her work.
Views: 1933 UCSBchemistry
Natural Products for Drug Development
Tímea Polgár, Founder and CEO, Envision Biotechnology at the InnovationWell Interaction meeting that took place in Basel on November 21, 2018. Information on natural products and traditional medicine is often ambiguous or unavailable and current databases may not be applicable for discovery sciences. How could modern technology and approaches like crowdsourcing support the sharing of complex data on natural products? How can we meet the need for standardized and structured databases with enough scope to cover natural product sources, their chemistry, as well as in vitro, in vivo and traditional data? Learn more: www.innovationwell.net
Natural Product Chemistry
Views: 404 M
CSIR-NET CHEMICAL SCIENCES | Chemistry of natural products
Here are the practice problems for CSIR UGC NET CHEMICAL SCIENCES aspirants. and you can find the answers with explanation in http://chemvoice.com/. Please make your comments in our website.
Views: 2105 Chemvoice
Progress in the Chemistry of Organic Natural Products is Celebrating 80 Years
The Springer book series Progress in the Chemistry of Organic Natural Products was started in 1938 by Laszlo Zechmeister. 80 years and 107 volumes later we are celebrating a legacy that has resulted in the “Zechmeister” becoming one of the premier book series in the field. Explore how the series has developed, the people behind the scenes and submit your proposal to become part of this series’ story! Learn more about the iconic book series here: https://www.springer.com/series/10169
Views: 146 Springer Nature
Natural Products Chemistry
Natural products chemistry project made by David Andersen
Views: 905 15Dandersen
University of Iowa Division of Medicinal and Natural Products Chemistry (MNPC)
The Division of Medicinal and Natural Products Chemistry educates PhD students and postdoctoral fellows in the chemistry and biology of drug discovery. We offer an interdisciplinary course of study and world class faculty with leading edge research projects resulting in a quality education and rewarding careers in the pharmaceutical industry and academia. Our outstanding faculty and students make the Division of Medicinal and Natural Products Chemistry a friendly and unique learning and research experience in a pleasant affordable small city in the heart of Iowa. Our program involves an interdisciplinary plan of coursework and research spanning many aspects of the subdisciplines of Chemistry, Biochemistry and Pharmacology with a common theme of drug discovery. This includes extensive laboratory research aimed at testing a novel hypothesis, which is written and defended as a PhD thesis. Contemporary research geared toward drug discovery and design is the cornerstone of graduate study in Medicinal and Natural Products Chemistry. Our faculty members are engaged in training and research in these focus areas: Drug Metabolism and Biocatalysis Biopolymeric Drugs Biotechnology and Structural Biology Structure - Activity Relationships Bioanalytical Chemistry Computer-Aided Drug Discovery Chemical & Pharmaceutical Toxicology Molecular Pharmacology
Views: 3781 MNPCUI
Natural product chemistry | Wikipedia audio article
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Natural_product 00:02:17 1 Classes 00:03:16 2 Function 00:04:36 2.1 Primary metabolites 00:08:23 2.2 Secondary metabolites 00:10:05 3 Biosynthesis 00:10:56 3.1 Carbohydrates 00:12:06 3.2 Fatty acids and polyketides 00:13:27 4 Sources 00:15:49 4.1 Prokaryotic 00:15:58 4.1.1 Bacteria 00:18:11 4.1.2 Archaea 00:19:30 4.2 Eukaryotic 00:19:39 4.2.1 Fungi 00:20:55 4.2.2 Plants 00:22:21 4.2.3 Animals 00:25:20 5 Medical uses 00:26:11 5.1 Traditional medicine 00:27:00 5.2 Modern natural product-derived drugs 00:30:22 5.3 Limiting and enabling factors 00:31:56 6 Isolation and purification 00:35:19 7 Synthesis 00:37:45 7.1 Semisynthesis 00:40:01 7.2 Total synthesis 00:41:10 7.3 Symmetry 00:42:29 8 Research and teaching 00:43:07 8.1 Chemistry 00:44:38 8.2 Biochemistry 00:45:09 9 History 00:45:18 9.1 Foundations of organic and natural product chemistry 00:46:06 9.2 Isolation 00:47:37 9.3 Synthesis 00:50:35 9.4 Structural theories 00:52:32 9.5 Expanding the concept 00:53:33 9.6 Milestones 00:55:15 10 See also 00:55:37 10.1 Journals Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.7423677073622912 Voice name: en-GB-Wavenet-B "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= A natural product is a chemical compound or substance produced by a living organism—that is, found in nature. In the broadest sense, natural products include any substance produced by life. Natural products can also be prepared by chemical synthesis (both semisynthesis and total synthesis) and have played a central role in the development of the field of organic chemistry by providing challenging synthetic targets. The term natural product has also been extended for commercial purposes to refer to cosmetics, dietary supplements, and foods produced from natural sources without added artificial ingredients.Within the field of organic chemistry, the definition of natural products is usually restricted to mean purified organic compounds isolated from natural sources that are produced by the pathways of primary or secondary metabolism. Within the field of medicinal chemistry, the definition is often further restricted to secondary metabolites. Secondary metabolites are not essential for survival, but nevertheless provide organisms that produce them an evolutionary advantage. Many secondary metabolites are cytotoxic and have been selected and optimized through evolution for use as "chemical warfare" agents against prey, predators, and competing organisms.Natural products sometimes have therapeutic benefit as traditional medicines for treating diseases, yielding knowledge to derive active components as lead compounds for drug discovery. Although natural products have inspired numerous U.S. Food and Drug Administration-approved drugs, drug development from natural sources has received declining attention by pharmaceutical companies, partly due to unreliable access and supply, intellectual property concerns, seasonal or environmental variability of composition, and loss of sources due to rising extinction rates.
Views: 45 wikipedia tts
38. Review: Synthesis of Cortisone
Freshman Organic Chemistry II (CHEM 125B) Discoverers of the structure and biological activity of steroid hormones won seven Nobel Prizes between 1927 and 1975. Studying the steps involved in Woodward's 1951 "total" synthesis of cortisone provides a review of the organic reactions covered this semester. Many steps involved novel insights, others were based on lore from previous work In the area. The overall yield of such sequential syntheses is typically much lower than that of convergent syntheses. Practical syntheses of cortisone were based on modification of related steroids readily available from nature. Milestones in total synthesis include both purely intellectual work with natural products and commercially important synthesis of designed pharmaceuticals. The course ends with thanks to those, young and old, who have taught us all. 00:00 - Chapter 1. Steroids and the Medicinal Activity of Cortisone 07:43 - Chapter 2. Woodward's Total Synthesis of Cortisone 33:27 - Chapter 3. Practical Synthesis of Cortisone 38:59 - Chapter 4. Some Milestones in Organic Synthesis 44:59 - Chapter 5. Thanks to Teachers, Colleagues, Family, and Students Complete course materials are available at the Open Yale Courses website: http://oyc.yale.edu This course was recorded in Spring 2011.
Views: 9644 YaleCourses
100 Years of Natural Product Synthesis Mobile
History of Organic Chemistry at the Helsinki University of Technology Chemistry Deparment starting form Komppa to 2003
Views: 356 Ari Koskinen
SciFinder Science in the News - Natural Product Chemistry (Part 3)
It's that time of year when many of us start thinking about the lush green lawns of spring. Check out part 3 of our Science in the News podcast to learn how natural product chemistry has helped eradicate a common lawn weed. Don't forget to catch all three parts of our first Science in the News podcast!
Views: 2402 CAS
Natural Product Chemistry
Made with http://biteable.com
Views: 2117 Chemophilic Education
Total Synthesis of a Natural Product - Dance Your PhD
An explanation of why it is important for organic chemists to synthesize biologically active naturally occurring molecules and a simplified representation of how that is done. Often time biologically active naturally occurring molecules are not abundant in nature and therefore nature is not a feasible source. Organic chemists are able to synthesize these molecules in labs and make them more abundant. As a synthetic organic chemist I am able to make chemicals that nature can’t make enough off. So you can think of us as builders on the molecular level. As a total synthetic chemist, I figure out how pieces fit together, what conditions you might need to make two molecules react (or connect) with one another. Sometimes molecules just don't react with one another. Some molecules are temperature sensitive and sometimes molecules just need a little push from a catalyst or activator to get the reaction to occur.
Views: 2879 DanceChemistry
SciFinder Science in the News - Natural Product Chemistry (Part 2)
Part 2 of our Science in the News podcast on natural product chemistry features Dr. Gordon Cragg, former Chief of the National Cancer Institute Natural Products Branch. Watch it now and stay tuned for more Science in the News podcasts coming soon!
Views: 2437 CAS
Esther GUZMÁN 1/28/15  Drugs from the Sea: Marine Natural Products
Natural products are compounds produced by organisms which are not essential to sustain life, but presumably confer an evolutionary advantage to the producing organisms. Over 62% of small molecule agents approved for use as drugs can be traced back to natural products. The Marine Biomedical and Biotechnology Research Program (MBBR) at Harbor Branch conducts drug discovery research of novel marine natural products that can be used against dreaded diseases. Within the MBBR, the Cell Biology Group focuses on finding compounds with utility against pancreatic cancer, the fourth leading cause of cancer death in the United States. This talk highlights marine natural products identified through this research that have the potential to prevent or treat this disease.
Seminar: Medicinal Chemistry and Natural Products: Approach and Source to New Drug Discovery
The Division of Medicinal Chemistry and Natural Products presented a seminar by Kuo-Hsiung Lee, PhD, on September 8, 2010. Lee is the Kenan Professor of Medicinal Chemistry and Natural Products at the School and director of the Natural Products Research Laboratories. His lab has discovered more than 3,000 bioactive natural products and their synthetic analogs, providing leads for new generation drug design against AIDS, cancer, and other diseases. The presentation is titled "Medicinal Chemistry and Natural Products: Approach and Source to New Drug Discovery."
Athar Ata: The Chemistry of Natural Products (Solutions 2012)
Grass Routes is an annual sustainability festival hosted at the University of Winnipeg, developed by the University of Winnipeg Students' Association and the Campus Sustainability Initiative. Grass Routes 2012 occurred March 12-16th. On Friday March 16th, 14 local speakers shared solutions they are working on to make Manitoba a cleaner, healthier, more just place to live. Find the full Solutions program details online at http://www.theuwsa.ca/events/grass-routes. Natural products are the chemical compounds produced by plants, marine organisms and microorganisms. Natural product chemistry is considered one of the major contributors of lead compounds to the drug discovery program. Recent studies indicate that 50% of prescribed pharmaceuticals are of natural product origin. Herbal products are becoming more popular to cure various ailments, but extensive use of these plants risks damaging our rainforests and causing environmental problems. It would be more appropriate to identify the active constituents from plants using bioassay-directed chemical investigation. These active constituent(s) can be synthesized by organic chemists in the lab to fulfill the clinical demand. In this presentation, our recent success in identifying lead bioactive compounds will be discussed.
Views: 1145 Grass Routes
4/1/17 Timothy Newhouse - Not for Fools: Organic Synthesis of Natural Products
Speaker: Timothy Newhouse (Yale Chemistry) Making the materials and therapeutics of the future, synthetic chemists synthesize and discover new molecules by twisting bonds and stereocenters at their will. Come join us to learn from Professor Tim Newhouse how the real Walter Whites of the world manipulate organic molecules to get rich. Science Saturdays is a special lecture series designed for families that brings the excitement of research and the passion of scientists to the community. Each event involves a lecture by a Yale professor and hands-on science demonstrations run by Yale College students. Bring the whole family! For more event information, go to: www.yale.edu/scienceoutreach.
Views: 1242 YaleUniversity
Search for and synthesis of natural organic compounds with unique structures and functions
The Nakata-Saikawa Research Lab in the Department of Applied Chemistry at Keio University’s Faculty of Science and Technology conducts research on organic chemistry of natural products. Q. The natural world has many mysterious phenomena and ingenious tricks that we would never think of. By synthesizing challengingly complex structured organic compounds, or by explaining the nature of yet to be understood mysterious organic phenomena at the molecular level, we think we can discover new compounds, new properties of compounds, and new organic chemical reactions. The Nakata-Saikawa Research Lab has been conducting synthesis research targeting natural organic compounds with complex and unique structures. As part of this research, during the synthesis of the ansa compound kendomycin, under a new method using the Dotz reaction to form an aromatic core while simultaneously generating a ring, the lab has successfully synthesized abundantly varied ansa compounds that cannot be created in the natural world. Q. Ansa compounds have interesting structures so they are fun to make, and quite a variety of bioactive compounds are produced, so in fact some are used in medicines. Of these, kendomycin is a compound that relatively recently was isolated and had its structure determined. From that time it was being targeted by synthetic chemists. We too have focused on synthesizing kendomycin, which may become a lead compound of pharmaceutical drugs, in an interesting manner. In addition to the synthesis of compounds, the Nakata-Saikawa Research Lab is focused on physiological phenomena and natural phenomena in organisms, conducting research to extract related organic compounds. Among this is research on a chemical substance that causes sneezing. Q. There is a red striped jellyfish called chrysaora pacifica. When it gets caught in a fishing net and turns into a powder after becoming dried out and stale, it has long been said that people will sneeze uncontrollably just by passing by it. What is it that causes the sneezing? It is something that causes everybody to sneeze, so to figure out what it is, we caught some chrysaora pacifica and made it into a powder. Using mice, we are administering a sample in their noses and counting the number of sneezes as a method to discover the inducing substance. At this point it appears that the substance is very unstable. It is not as if we understand its structure yet, but we have started to see that the substance causing the sneezing is something unique, so we think this research has become interesting. In addition, the Nakata-Saikawa Research Lab is also conducting fascinating research to explain the mechanisms of biological phenomena. This includes extracting compounds involved in the phenomenon of the calcium in an egg shell moving to the bones of a chick when the chick grows inside the egg. Q. When you look around there are many interesting natural phenomena. Look at the various things around you and give it some thought as to how in the world they became like that. When you do this, you will discover that there are still many extremely interesting unexplained phenomena. If we continue to work hard researching to explain them, I think we will definitely discover some interesting science, so I want everyone to join the world of science.
The Dictionary of Natural Products
The Dictionary of Natural Products (DNP) is the only comprehensive and fully-edited database on natural products. Request a free trial here: https://www.crcpress.com/go/dnp_trial Stay competitive with access to the latest chemical, physical, and structural data on natural products. The Dictionary of Natural Products provides you with the properties and complete history of relevant literature for over 300,000 natural compounds. It helps chemists research and develop new solutions for many industries including: Pharmaceuticals: Stay up-to-date on changes in natural product information and explore novel natural products as a source of new drugs. Food Sciences/Nutraceuticals: Ensure your products meet consumers changing tastes and health considerations by understanding shifting natural product information. Cosmetics: Develop more natural and organic products safely and efficiently.
√ World Resources - Industrial Chemistry - Natural Products - Chemical Equilibrium | Chemistry
#iitutor #Chemistry #IndustrialChemistry https://www.iitutor.com Natural products are derived directly from resources available in nature and used with minimal (or no) modification. Examples include such items as ivory, gold, silver, vegetable oils, gypsum, natural rubber, wood, and wool. Natural resources are often only available in limited quantities. For example, wood and natural rubber are only available providing that forests are maintained. This is increasingly difficult as people build more houses and clear more land for crops and grazing. Other natural products such as ivory are now no longer readily available because of the inhumane nature of their harvesting and the shortage of the animals from which they are taken. It is important therefore that we not only attempt to manage natural resources, but that we should do this in such a way as to conserve both the ecology and the supply of natural products. More research is also necessary to search for technologies to replace natural products. Traditionally, whales were hunted to obtain whale oil for lamps and cooking as well as the manufacture of margarines, candles, soaps, cosmetics and perfumes. Whale meat was also eaten as it still is today in Japan. Improved whaling methods led to a dramatic decline in whale numbers by the mid-twentieth century and alternative oil sources needed to be found. Since 1860, oils derived from petroleum have been used as a fuel to replace whale oil in fuel lamps. Vegetable oils replaced whale oil in the manufacture of margarines. Candle wax is now derived from petroleum paraffin. The growing world population required the development of synthetic fertilisers to replace the shrinking world supplies of natural fertilisers. The development of the Haber Process (ammonia manufacture) and the Ostwald Process (manufacture of nitric acid) at the beginning of the twentieth century were important examples of industrial developments that led to the production of synthetic fertilisers. Superphosphate fertilisers were developed to replace the natural guano deposits. Ivory can be replaced with other natural products such as camel bone, but there are ethical issues involved in this product also, so a man-made replacement is an easier option. The first replacement for ivory came in the 1860s when Alexander Parkes developed his synthetic ivory called Parkesine and won a bronze medal for the invention at the World Fair in London in 1862. He had taken a naturally occurring polymer, cellulose, and nitrated (added nitric acid) to form the new polymer, cellulose nitrate. Cellulose nitrate had many of the properties of ivory. John Hyatt improved upon Parkesine by using a camphor solvent and called the product celluloid. It was the first thermoplastic. Celluloid could be moulded into many shapes, such as false teeth (with a camphor aftertaste and an unfortunate habit of softening when eating hot food), ladies' corsets, shirt-fronts, combs, knife handles, jewellery boxes, ping-pong balls (still used today), billiard balls, and projector film. The major drawback with the use of celluloid was that it is highly flammable. Billiard balls were known to burn explosively if hit too strongly together, and projector film to catch fire in the heat of the projector lights. There was still the problem that celluloid products yellowed and cracked over time. The next improvements were the production of cellulose acetate by the reaction of cellulose with acetic acid. Cellulose acetate was much less flammable than cellulose nitrates and replaced celluloid in many applications. Cellulose acetate can also be made into a fibre and used to make clothing. Once people realised the versatility of polymers, many new fibres and plastics were developed. In the early 1900s Leo Baekeland mixed phenol and formaldehyde under pressure with the application of heat to create Bakelite. This product quickly became an important synthetic plastic and was used for a variety of substances that required a good thermal and electrical insulator, for example saucepan handles and light fixtures. CD5111 http://youtu.be/yZiEItp-oyM
Views: 2063 iitutor.com
Lecture 2: Citral
Structure determination of citral, reactions and synthesis of citral, NMR of citral, cis-trans isomerism in citral
Views: 4186 Nandkishor Karade
IPL: Nigel Perry: New Molecules from New Zealand: Natural Products Chemistry of Trees, Sponges & Bee
Professor Nigel Perry, Department of Chemistry, Division of Sciences, presents his Inaugural Professorial Lecture. Recorded 9 May 2017. Professor Perry's profile: http://neon.otago.ac.nz/chemistry/contacts/profile/nbp Department of Chemistry website: http://www.otago.ac.nz/chemistry
Views: 196 University of Otago
Everyday chemical free makeup using organic products  | Natural No Makeup look | Indian Youtuber
Hi Guys! Hope you doing great :) So this video is all about makeup and you don't have to worry about those chemicals to apply on your skin. Coz this video is all about doing makeup using 100% natural/ organic products from your kitchen. This can be your daily go-to look and you will feel quite light and natural whole day. Plus you don't have to worry about eating those chemicals along with your food :P So watch out till end to see how this look turned out. And if you like this video, do tell me by leaving your comment in the comment section below and clicking the like button. And if you don't want to miss any such videos, DO SUBSCRIBE :) Checkout my previous videos here: Reusing Your Wedding Lehenga | DIY Crop Top | SurRealista : https://www.youtube.com/watch?v=vKvPGi9-8LQ Formal Wear | Converting Formal to Party Wear | SurRealista: https://youtu.be/7d5lLuhIj6g Indo-Western Dhoti Skirt | Create and Style | SurRealista: https://youtu.be/N34CVvRercY How to get rid of Dark Circles | SurRealista: https://www.youtube.com/watch?v=binC-urOfQ4&t=5s DIY: Father's Day Gift | SurRealista : https://www.youtube.com/watch?v=IxedLgpsbzU&t=1s Natural Mosquito Repellent At Home | SurRealista : https://www.youtube.com/watch?v=50oj2Lx4mqU How to make Rose Water at Home and it's uses : https://www.youtube.com/watch?v=1c-gjhwk7V4&t=30s Connect with me on: Facebook: https://www.facebook.com/SurRealista29/ Instagram: https://www.instagram.com/surbhi_dhall/ Twitter: https://twitter.com/Surrealista29 Google+ : https://plus.google.com/u/0/b/101287144631308898897/101287144631308898897?pageId=101287144631308898897 For any queries: [email protected] -~-~~-~~~-~~-~- Please watch: "How to make natural eye kajal/ Kohl at home | Surrealista" https://www.youtube.com/watch?v=Q7wujQayVKo -~-~~-~~~-~~-~-
Views: 10009 SurRealista
Carl Djerassi - Working on natural products of chemistry (82/117)
To listen to more of Carl Djerassi’s stories, go to the playlist: https://www.youtube.com/playlist?list=PLVV0r6CmEsFwKnZJAXj6a3kZfe4rn_riG Austrian-American Carl Djerassi (1923-2015) was born in Vienna. He revolutionised the field of female contraception when he and his team of chemists produced synthetic progesterone which led to the development of the first oral contraceptive pill. [Listener: Tamara Tracz] TRANSCRIPT: In Mexico I was entirely a synthetic chemist, I was making things with an object to make them, so that they can be used for medicinal purposes, mostly by synthetic chemists, but the cacti, it really started with that. I just developed a curiosity of what’s in it, and that led me to start working on cactus chemistry, and very few people worked on cactus chemistry, there was really only one natural product that was famous, if not notorious, and that was mescaline from peyote buttons, but these were small cacti. They were from Mexico, but they were small, and not the really giant treelike ones here, and so I focused on that and we did- I probably did, maybe a dozen PhD thesis’s, and many post docs who worked on the constituents of giant cacti, and we did some very important work. And it had no- there were no practical consequences of this, and I didn’t even mean there to be, but chemically they were extremely interesting, and that led me also to alkaloid work, and to- what I really found were interesting, triterpines, and triterpines are compounds that look like, like steroids, but are even more complex. I don’t know whether I have some- I may have some structures in here? No, probably not. Chemical structures, but I worked on these, and that led me to alkaloid chemistry, and that led me to antibiotic chemistry, but it led me to the structure elucidation of compounds, rather than to the synthesis of it. And structurally I’ll use, not quite an architectural metaphor, which you try to use for synthesis, to try and draw the difference between total synthesis and partial synthesis, but a different one, and at that time it was, I think for me, intellectually an even more challenging one, and it was something which was primarily practised in Europe, and later also in Japan, and much less so in the United States, which sort of, continued my sort of outside status I mentioned, even in, in chemical priorities. Namely, natural products of chemistry means to identify the chemical structure of chemicals in natural products, and that was the first priority, and the next one was what could you use them for, or why are they there, and then finally, even how are they synthesised by that plant or animal? Most of them were plants at that time. The analogy is that you walk into a pitch dark room, a furnished room, and you want to find out what is in this room, and by that I mean what sort of furniture, and initially, just are there tables, beds, chairs, what are they made out of, what are their shapes, what are their colours, and so on and so forth? And in the end, how are they made, why are they made, why is that there, assuming that you don’t even know what a chair is, and a table? Now, how would you do that if you go in a pitch-dark room and you have nothing? All you can do is grope around and you feel with your fingers, and sometimes you can be grossly misled, and sometimes you wouldn’t be. This is a good example, this table here, which is oval. Well, you know, when you feel it around you would not necessarily think that this is actually a table, and even the material is an unusual material for a table. This happens to be metal, and most dining room tables are not really metal like this, and it wouldn’t feel that way, so you could already be misled if you just did it by feeling, although eventually you might be able to figure it out. Well, the next thing you do is you try and at least light a match, and when you light a match you can really illuminate only very little, and for only a very short period of time, so you have to either light a lot of matches and do it gradually, and then discover it, or maybe if you are lucky you can try and get a candle, and then you can see more, and maybe a flashlight, and so on. Now, of course the ideal thing would be if you would take a photograph, and in fact, if you take a colour photograph then you’ve got everything there. With one photograph with a wide angle lens you take the entire room, you see it right there, and you even see it in colour, and then you can already extrapolate very much what the materials are there, although not necessarily entirely, so that’s exactly what natural product chemistry is. You want to know what is in that particular plant, let us say, but.... Read the full transcript at https://www.webofstories.com/play/carl.djerassi/82

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