[Latin Name] Glycine max(L.) Mere

[Specification] 90%; 95%

[Appearance] White powder

[Melting point] 134-142℃

[Particle size] 80Mesh

[Loss on drying] ≤2.0%

[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

[What is Phytosterol?]

Phytosterols are compounds found in plants that resemble cholesterol. The National Institutes of Heath report that there are over 200 different phytosterols, and the highest concentrations of phytosterols are found naturally in vegetable oils, beans and nuts. Their benefits are so recognized that foods are being fortified with phytosterols. At the supermarket, you may see orange juice or margarine advertising phytosterol contents. After reviewing the health benefits, you may want to add phytosterol-rich foods to your diet.

[Benefits]

Cholesterol-Lowering Benefits

The most well-known, and scientifically proven, benefit of phytosterols is their ability to help lower cholesterol. A phytosterol is a plant compound that is similar to cholesterol. A study in the 2002 issue of “Annual Review of Nutrition” explains that phytosterols actually compete for absorption with cholesterol in the digestive tract. While they prevent the absorption of regular dietary cholesterol, they themselves are not easily absorbed, which leads to a total lower cholesterol level. The cholesterol-lowering benefit does not end with a good number on your blood work report. Having lower cholesterol leads to other benefits, such as a reduced risk for heart disease, stroke and heart attacks.

Cancer Protection Benefits

Phytosterols have also been found to help protect against the development of cancer. The July 2009 issue of the” European Journal of Clinical Nutrition” offers encouraging news in the fight against cancer. Researchers at the University of Manitoba in Canada report that there is evidence that phytosterols help prevent ovarian, breast, stomach and lung cancer. Phytosterols do this by preventing the production of cancer cells, stopping the growth and spread of cells that are already in existence and actually encouraging the death of cancer cells. Their high anti-oxidant levels are believed to be one way phytosterols help fight cancer. An anti-oxidant is a compound that fights free radical damage, which is negative effects on the body produced by cells that are unhealthy.

Skin Protection Benefits

A lesser known benefit of phytosterols involves skin care. One of the contributing factors in the aging of the skin is the breakdown and loss of collagen — the main component in connective skin tissue — and sun exposure is a major contributor to the problem. As the body ages, it is not able to produce collagen as it once did. The German medical journal “Der Hautarzt” reports a study in which various topical preparations were tested on skin for 10 days. The topical treatment that showed anti-aging benefits to the skin was the one that contained phytosterols and other natural fats. It is reported that phytosterols not only stopped the slow-down of collagen production that can be caused by the sun, it actually encouraged new collagen production.

Free food, from one of the many trees in the yard. Proanthocyanidins are a class of polyphenols found in a variety of plants. Strong free-radical scavengers, they are known to affect oxidative stress (a factor in oncogenesis/carcinogenesis), a potent contributor to cell deterioration and longevity. Eat a colorful diet, with your ‘red-spectrum foods’ being chosen from fruit and vegetable sources (because red meat doesn’t count towards this goal). Filmed in glorious PotatoVision.

Chemistry playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_KyuOalV6rwHjo810Zaa6xq

more at https://scitech.quickfound.net/

Overview of how plastics & synthetic rubbers are made.

Reupload of a previously uploaded film with improved video & sound.

Public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).

https://creativecommons.org/licenses/by-sa/3.0/

https://en.wikipedia.org/wiki/Polymer

A polymer is a large molecule (macromolecule) composed of repeating structural units. These sub-units are typically connected by covalent chemical bonds. Although the term polymer is sometimes taken to refer to plastics, it actually encompasses a large class of compounds comprising both natural and synthetic materials with a wide variety of properties.

Because of the extraordinary range of properties of polymeric materials, they play an essential and ubiquitous role in everyday life. This role ranges from familiar synthetic plastics and elastomers to natural biopolymers such as nucleic acids and proteins that are essential for life.

Natural polymeric materials such as shellac, amber, wool, silk and natural rubber have been used for centuries. A variety of other natural polymers exist, such as cellulose, which is the main constituent of wood and paper. The list of synthetic polymers includes synthetic rubber, Bakelite, neoprene, nylon, PVC, polystyrene, polyethylene, polypropylene, polyacrylonitrile, PVB, silicone, and many more.

Most commonly, the continuously linked backbone of a polymer used for the preparation of plastics consists mainly of carbon atoms. A simple example is polyethylene (‘polythene’ in British English), whose repeating unit is based on ethylene monomer. However, other structures do exist; for example, elements such as silicon form familiar materials such as silicones, examples being Silly Putty and waterproof plumbing sealant. Oxygen is also commonly present in polymer backbones, such as those of polyethylene glycol, polysaccharides (in glycosidic bonds), and DNA (in phosphodiester bonds).

Polymers are studied in the fields of polymer chemistry, polymer physics, and polymer science…

Polymerization is the process of combining many small molecules known as monomers into a covalently bonded chain or network. During the polymerization process, some chemical groups may be lost from each monomer. This is the case, for example, in the polymerization of PET polyester. The monomers are terephthalic acid (HOOC-C6H4-COOH) and ethylene glycol (HO-CH2-CH2-OH) but the repeating unit is -OC-C6H4-COO-CH2-CH2-O-, which corresponds to the combination of the two monomers with the loss of two water molecules. The distinct piece of each monomer that is incorporated into the polymer is known as a repeat unit or monomer residue…

https://en.wikipedia.org/wiki/Synthetic_rubber

Synthetic rubber is any type of artificial elastomer, invariably a polymer. An elastomer is a material with the mechanical (or material) property that it can undergo much more elastic deformation under stress than most materials and still return to its previous size without permanent deformation.About 15 billion kilograms of rubbers are produced annually, and of that amount two thirds is synthetic…

Natural vs synthetic rubber

Natural rubber, coming from latex, is mainly poly-cis-isoprene containing traces of impurities. Although it exhibits many excellent properties, natural rubber is often inferior to synthetic rubbers, especially with respect to its thermal stability and its compatibility with petroleum products.

Synthetic rubber is made by the polymerization of a variety of petroleum-based precursors called monomers. The most prevalent synthetic rubbers are styrene-butadiene rubbers (SBR) derived from the copolymerization of styrene and 1,3-butadiene. Other synthetic rubbers are prepared from isoprene (2-methyl-1,3-butadiene), chloroprene (2-chloro-1,3-butadiene), and isobutylene (methylpropene) with a small percentage of isoprene for cross-linking. These and other monomers can be mixed in various proportions to be copolymerized to produce products with a range of physical, mechanical, and chemical properties. The monomers can be produced pure and the addition of impurities or additives can be controlled by design to give optimal properties. Polymerization of pure monomers can be better controlled to give a desired proportion of cis and trans double bonds…