[Products Name]  Propolis block, pure propolis, raw propolis

[Specification]  Propolis content 90%,95%

[Gerneral feature]

1. Low antibiotics

2. Low PAHs, can approve to 76/769/EEC/German:LMBG;

3.Organic certified by ECOCERT, according to EOS & NOP organic standard;

4.Pure natural propolis;

5.High content of flavones;

6.Low temperature extracted, retain high activity of all nutritions;

[Packaging]
1. 1kg/aluminum foil bag, 20kgs/carton.

[How to get it]

First, we collect raw propolis from beehives, then extract by low temperature with ethanol. Filter and concentrate, we get the pure propolis block at 90% to 95%.

[Introduction]

Propolis comes from the substance like natural resin, which is collected by the bees from exudates of plants branches and bud the chemical substances of Propolis are found to be various, such as beeswax, resin, incense lipids, aromatic oil, fat-soluble oils, pollen and other organic matter. Studies have shown that the source of propolis resin in material has three types: bees collected plants secreted fluid, secretion in vivo metabolism of bee, and involvement in the process of forming the material.

We can supply Propolis Extract with food-grade and medicine-grade .The raw materiall is came from non-polluting food grade propolis .Propolis extract was made of high-grade propolis. It maintains the propolis effective ingredients during the procedure of extraction under constant low temperature , taking off the useless substances and sterilization.

[Function]

Propolis is a natural product processed by bees mixed with glutinous and its secretion.

Propolis contains more than 20 kinds of useful flavonoids, rich vitamins, enzymes, amino acids and other microelements, etc. Propolis is called “purple gold” owing to its valued nutrients.

Propolis can remove free radical, lower blood sugar and blood fat, soften blood vessels, improve micro-circulation, enhance immunity, anti-bacteria and anti-cancer.

Griti is a learning community for students by students. We build thousands of video walkthroughs for your college courses taught by student experts who got an A+.

SUBSCRIBE to the channel and explore overviews for every concept in your calculus, chemistry and physics courses for FREE!

Register at www.GRITI.co
REQUEST VIDEOS FOR MORE HELP?
+ get thousands of study problems for exam prep

Biochemistry: Protein structure. Drawing protein chains. Peptide bonds. How to determine the net charge of a peptide chain at different pH’s. Primary structure. Weak interactions; electrostatic interactions, hydrogen bonds, Van der Waals interactions. Hydrophobic effect. Disulfide bonds. Secondary structure; the alpha helix, beta-pleated sheets. Alpha-keratin. Collagen. Tertiary structure. Quaternary structure

This is a recording of a tutoring session, posted with the student’s permission.

These videos are offered on a “pay-what-you-like” basis. You can pay for the use of the videos by making a monthly pledge at my Patreon page:

https://www.patreon.com/freelanceteacher

Or, if you prefer to make a one-time payment, you can do so by using the PalPal “Donate” button on my website:

https://www.freelance-teacher.com/videos.htm

For a list of all the available video series, arranged in suggested viewing order, go to my website.

For the “Acids and bases” handout discussed in these videos, click here:

https://www.freelance-teacher.com/acid_base_reactions.pdf

For the “Amino acids” handout discussed in these videos, click here:

https://www.freelance-teacher.com/amino_acids.pdf

For a document containing the video (1) homework problems, click here:

https://freelance-teacher.com/protein_structure_homework1.pdf

TABLE OF CONTENTS
VIDEO (1)
0:00 Drawing protein chains. Peptide bonds
23:40 How to determine the net charge of a peptide chain at different pH’s
40:10 Characteristics of peptide bonds

VIDEO (2)
Homework
φ and ψ
Primary structure
Secondary structure. The alpha helix
Weak interactions. Electrostatic interactions
Hydrogen bonds

VIDEO (3)
Homework
Functions of proteins
Van der Waals interactions
Hydrophobic effect
The alpha helix, continued
Alpha-keratin
Collagen

VIDEO (4)
Homework
Disulfide bonds
Disulfide bonds in alpha-keratin
Homework, continued. More about collagen
Beta-pleated sheets

VIDEO (5)
Homework
Tertiary structure
Quaternary structure

VIDEO (6)
Homework

tags: education college student students university exam test educational study campus school class