[Latin Name] Salix alba L.

[Plant Source] from China

[Specifications] Salicin 15-98%

[Appearance] Yellow Brown to White powder

Plant Part Used: Bark

[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.

[Shelf life] 24 Months

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

[Net weight] 25kgs/drum

Brief Introduction

Salicin is a naturally occurring compound found in the bark of several species of trees, primarily North American in origin, that are from the willow, poplar, and aspen families. White willow, from whose Latin name, Salix alba, the term salicin is derived, is the most well known source of this compound, but it is found in a number of other trees, shrubs, and herbaceous plants as well being synthesized commercially. It is a member of the glucoside family of chemicals and is used as an analgesic and antipyretic. Salicin is used as a precursor for the synthesis of salicylic acid and acetylsalicylic acid, commonly known as aspirin.

A colorless, crystalline solid in its pure form, salicin has the chemical formula C13H18O7. Part of its chemical structure is equivalent to the sugar glucose, meaning it is classified as a glucoside. It is soluble, but not strongly so, in water and alcolhol. Salicin has a bitter taste and is a natural analgesic and antipyretic, or fever reducer. In large quantities, it can be toxic, and overdoses may lead to liver and kidney damage. In its raw form, it may be mildly irritating to skin, respiratory organs, and eyes.

Function

1. Salicin is used to ease pain and reduce inflammation.

2. Relieve acute and chronic pain, including headache, back and neck pain, muscle aches, and menstrual cramps; Control arthritis discomforts.

3. Relieve acute and chronic pain.

4. It has the same effect on the body as aspirin without any of the side effects.

5. It is an anti-inflammatory, a fever reducer, an analgesic, an anti-rheumatic, and an astringent. Specifically, it helps to relieve headaches.

Application

1.Anti-inflammatory, anti-rheumatic,

2.Reduce a fever,

3.Use as an analgesic and astringent,

4.Relieve headache,

5.Ease pain caused by rheumatism, arthritis, and carpal tunnel syndrome.

20 Liters of Colostrum Milk Pudding
Custard Junnu Recipes
Experienced Grandma’s Cooking
Junnu is a pudding or a milk cake known as ginnu in kannada and kharvas in Marathi. It is prepared using the colostrum milk that a cow produces during the first few days after delivering a calf. This milk is called junnu paalu in Telugu.
Junnu is cheesy dessert made using colostrum milk. Colostrum milk is milk of a cow or a buffalo during first five or six days of calving

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.

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

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

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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

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