[Latin Name] Polygonum Cuspidatum Sieb. et Zucc

[Plant Source] China

[Specifications] Resveratrol 50%, 95%, 98% by HPLC

[Appearance]Brown or white fine powder

[Plant Part Used] Rhizome&Root

[Particle size] 80 Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Package] Packed in paper-drums and two plastic-bags inside.

[General feature]

1.100% natural source. Our resveratrol is 100% extracted from natural herb, very safe and more bioactive, which is rich with both CIS-resveratrol and trans-resveratrol.

2.Our resveratrol almost have no unpleasant taste compare to other resveratrols and it can be easier to take by oral.

3.We offer resveratrol at a very competitive price with superb quality.

4.We have a very large output and could manufacturer as customer particular requirement.

[Function]

Resveratrol is an active component extracted from Huzhang (Polygonum cuspidatum) in China.

It is an antioxidant phenol and a potent vasodilator that inhibits serum triglyceride synthesis, lipid peroxidation, and platelet aggregation.

It is extensively used for treatment of blood vessel disease such as atherosclerosis and hyperlipidemia. In addition, it has anti-virus and anti inflammatory activity, can treat acute microbial infections and viral hepatitis.

UCI Chem 128 Introduction to Chemical Biology (Winter 2013)
Lec 14. Introduction to Chemical Biology — Glycobiology
View the complete course: https://ocw.uci.edu/courses/chem_128_introduction_to_chemical_biology.html
Instructor: Gregory Weiss, Ph.D.

License: Creative Commons BY-NC-SA
Terms of Use: https://ocw.uci.edu/info.
More courses at https://ocw.uci.edu

Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways.

Introduction to Chemical Biology (Chem 128) is part of OpenChem: https://ocw.uci.edu/collections/open_chemistry.html
This video is part of a 18-lecture undergraduate-level course titled “Introduction to Chemical Biology” taught at UC Irvine by Professor Gregory Weiss.

Recorded February 22. 2013.

Index of Topics:
0:02:04 Enzyme Functions
0:06:10 Serine Based Proteases
0:10:44 Protein Based Inhibition of Proteases
0:13:10 Covalent or Mechanism-Based Protease Inhibitors
0:15:02 Inhibition of Serine Esterases
0:17:07 Enzymes Use Co-Factors (Vitamins)
0:21:31 The Origins of Stereospecificity in Alcohol Dehydrogenase
0:24:09 Pyridozal Phosphate (Vitamin 86)
0:27:29 PLP – Catalyzed Transamination
0:29:29 Protein Engineering
0:36:16 Most Mutations Make the Protein Less Functional
0:38:17 Carbohydrates
0:44:30 Hemiacetal Reactivity and Formation
0:46:33 Glucopyranose is the Most Noteable Ring Configuration
0:47:51 Oligosaccharides of the TB Coat
0:51:29 Oxocarbenium Ions as a Key Intermediate in Hydrolysis of Glycosidic Bonds
0:53:19 Mechanisms of Enzymatic Hydrolysis
0:54:58 Commonalitites in Glycosylhydrolase Mechanisms
0:56:03 Neuraminidase: Key Enzyme in Influenza Release from Surface to Cell
1:01:06 Oligosaccharides
1:04:22 Polysaccharides
1:08:04 Hyaluronan: Oligosaccharides in Joints
1:09:57 Glycosylated Proteins

Required attribution: Weiss, Gregory Introduction to Chemical Biology 128 (UCI OpenCourseWare: University of California, Irvine), https://ocw.uci.edu/courses/chem_128_introduction_to_chemical_biology.html. [Access date]. License: Creative Commons Attribution-ShareAlike 3.0 United States License (https://creativecommons.org/licenses/by-sa/3.0/us/deed.en_US).

Komplettes Chemie-Video unter https://www.sofatutor.com/v/1Cn/ig

In diesem Video geht es um Polysaccharide – ganz speziell um Cellulose, Stärke und Glykogen. Diese drei Vertreter der Polysaccharide werden vorgestellt und bezüglich ihrer Struktur und ihren Eigenschaften besprochen.

Dieses Video gehört zu: Chemie | Organische Chemie | Naturstoffe