[Latin Name]  Citrus aurantium L.

[Specification] Synephrine 4.0%–80%

[Appearance] Yellow brown powder

Plant Part Used: Fruit

[Particle size] 80Mesh

[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

[What is Citrus Aurantium]

Citrus aurantium L, belonging to the family Rutaceae, is widely distributed in China. Zhishi, the Chinese traditional name for Citrus aurantium, has long been a folk medicine in traditional Chinese medicine (TCMto improve indigestion and help stimulate the Qi (energy force).

[Function]

1. Have the function of antioxidant, anti-inflammatory, hypolipidemic, vasoprotective and anticarcinogenic and cholesterol lowering actions.

2. Have the function of inhibiting following enzymes: Phospholipase A2, lipoxygenase, HMG-CoA reductase and cyclo-oxygenase.

3. Have the function of improving the health of capillaries by reducing the capillary permeability.

4. Have the function of reducing hay fever and other allergic conditions by inhibiting the release of histamine from mast cells. The possible activity of hesperidin could be explained by the inhibition of polyamine synthesis. (bitter orange extract)

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…

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Why it Works for
F21 is an All Natural Sugar Blocker that helps limit your blood sugar absorption. It consists of different compounds found to have various health benefits, such as L-Arabinose, Coriolus Versicolor Polysacchride, Konjac-Mannan, Magnesium Stearate, Mint flavor: Menthol and Natural Colors. F21 not only does it help promote weight loss, (PSK) boosts your immune system response. In fact, for every gram of F21, you can block up to 20 grams of sugar (sucrose). The formula not only helps promote weight loss, it benefits the digestive system by allowing the blocked sucrose to support beneficial probiotic bacteria while the polysaccharide (PSK) boosts your immune system response.
But how does this formula break down the sugar in our bodies? There are basically three steps:
STEP 1
Sugar (sucrose) enters the body as a whole molecule.
STEP 2
The enzyme “sucrose” separates the sucrose molecule into two individual sugar molecules, Glucose and Fructose, which then enter the blood stream to be used. F21 inhibits sucrose from separating the sucrose molecule.
STEP 3
Instead of the sugars entering the blood stream, the whole sucrose molecule and F21 remain in the digestive tract and become prebiotics.
The main ingredient in F21 is L-Arabinose, which helps prevent sugar (sucrose) from being metabolized in the body. It also helps to satisfy any cravings for sugar. Another ingredient, Polysaccharide (PSK), is an extremely powerful antioxidant and immune-regulatory defender. It’s well researched anti-tumor, anti-infection and anti-inflammation effects help repair damaged cells and support the immune system.
Konjac-Mannan is a natural appetite suppressant. It acts as a trigger signaling your stomach to feel a little more satisfied and can help to reduce hunger cravings.
Prebiotics are indigestible fibers that are food for the probiotics. Both F21 and the whole sucrose molecule remain in the large intestine and become food for probiotics.
Menthol is an organic compound made synthetically or obtained from cornmint, peppermint or other mint oils. Menthol has local anesthetic and counterirritant qualities, and it is widely used to relieve minor throat irritation. It is known to be a powerfully medicinal compound linked to several potential health benefits. Peppermint oil, a natural source of menthol, has been investigated as a treatment for several diseases and conditions.
Magnesium stearate, also called octadecanoic acid, is manufactured from both animal and vegetable oils and this is the reason why some nutritional supplements specify that the magnesium stearate used is sourced from vegetables.