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Gallic acid

Le 22 juillet 2016, 05:43 dans Humeurs 0

Gallic acid

  • Product Specification: 99.5%
  • Foodchem Code: S3901
  • Test Method: HPLC
  • Payment Terms: L/C,D/A,D/P,T/T,O/A
  • Delivery time: 2-3 Weeks
  • CERTIFICATION & CREDIT

Product describtion

      Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants.The chemical formula is C6H2(OH)3COOH. Gallic acid is found both free and as part of hydrolyzable tannins. The gallic acid groups are usually bonded to form dimers such as ellagic acid. Hydrolysable tannins break down on hydrolysis to give gallic acid and glucose or ellagic acid and glucose, known as gallotannins and ellagitannins respectively.

    Gallic acid forms intermolecular esters (depsides) such as digallic and trigallic acid, and cyclic ether-esters (depsidones).

Gallic acid is commonly used in the pharmaceutical industry. It is used as a standard for determining the phenol content of various analytes by the Folin-Ciocalteau assay; results are reported in gallic acid equivalents. Gallic acid can also be used as a starting material in the synthesis of the psychedelic alkaloid mescaline.

      The name is derived from oak galls, which were historically used to prepare tannic acid. Despite the name, gallic acid does not contain gallium. Salts and esters of gallic acid are termed "gallates".

 

ItemsStandard
Appearance White to beige powder
Assay(%) 99.5 Min
Solubility(Color) Faint yellow to dark yellow
Solubility(Turbidity) Clear to very slightly hazy
Loss on drying(%) 10.0 Max
Ash(%) 0.1 Max
SO4(%) 0.02 Max
As(ppm) 3 Max
Heavy metals(ppm) 15 Max

Why choose Foodchem

• TOP 10 Food enterprise in China
• Over 9 years of experience
• Wholly owned production plant (1200㎡)
• Sales to more than 70 countries
• 200 products with competitive price
• FCL, 2-5mt LCL, long contract, year contract available
• Halal, Kosher, ISO 9001 certified
• High quality products, complying with BP/USP/FCC/EU standard
• 1000 ㎡ owned office and 3000 ㎡ warehouse

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Matcha Powder

Le 21 juillet 2016, 11:06 dans Humeurs 0

Matcha Powder

  • Product Specification: 603
  • Foodchem Code: S1803
  • Test Method: UV
  • Payment Terms: L/C,D/A,D/P,T/T,O/A
  • Delivery time: 2-3 Weeks
  • CERTIFICATION & CREDIT

Product describtion

Introduction:
    Matcha Green Tea is the highest quality powdered green tea available. Made from the nutrient-rich young leaves picked from the tips of shade-grown Camellia sinensis plants, Matcha Green Tea is steamed, stemmed, and de-vined before being stone-ground into very fine powder. Matcha Green Tea powder is then stored away from light and oxygen in order to preserve its brilliant green color and antioxidant properties. This miracle elixir has been consumed for over a millennium in the Far East, and is now considered to be one of the most powerful super foods on the market today.

Functions:
1.Boosts metabolism and burns calories;
2.Detoxifies effectively and naturally;
3.Calms the mind and relaxes the body;
4.Enhances mood and aids in concentration;
5.Provides vitamin C, selenium, chromium, zinc and magnesium;
6.Prevents disease;
7.Lowers cholesterol and blood sugar;
8.Increases Energy Levels and Endurance.

Applications:
1.Matcha Powder can be applicated in drinking,bakery and ice cream etc.
2. Matcha Powder can be applicated in cosmetic like matcha mask can smooth skin.

Packing & Storage:
     Pack in paper-drums and two plastic-bags inside. Net Weight: 25kgs/paper-drum.
     1kg-5kgs plastic bag inside with aluminum foil bag outside. Net Weight: 20kgs-25kgs/paper-drum.
     Store in a well-closed container away from moisture and light.

Shelf Life:
     2 years if sealed and store away from direct sun light.

     Natural Ingredients, Healthy Life.
     Naturalin is a botanical/plant extracts manufacturer and Natural Ingredient     Solutions provider.
     Please feel free to contact us for your any concerns.

Why choose Foodchem

• TOP 10 Food enterprise in China
• Over 9 years of experience
• Wholly owned production plant (1200㎡)
• Sales to more than 70 countries
• 200 products with competitive price
• FCL, 2-5mt LCL, long contract, year contract available
• Halal, Kosher, ISO 9001 certified
• High quality products, complying with BP/USP/FCC/EU standard
• 1000 ㎡ owned office and 3000 ㎡ warehouse

Related Products

Papain

Le 21 juillet 2016, 06:07 dans Humeurs 0

Papain

  • Product Specification: 6000 USP U/MG
  • Foodchem Code: S3301
  • Test Method: UV/HPLC
  • Payment Terms: L/C,D/A,D/P,T/T,O/A
  • Delivery time: 2-3 Weeks
  • CERTIFICATION & CREDIT

Product describtion

Papain family

    Papain belongs to a family of related proteins with a wide variety of activities, including endopeptidases, aminopeptidases,dipeptidyl peptidases and enzymes with both exo- and endo-peptidase activity.Members of the papain family are widespread, found in baculovirus, eubacteria, yeast, and practically all protozoa, plants and mammals. The proteins are typically lysosomal or secreted, and proteolytic cleavage of the propeptide is required for enzyme activation, although bleomycin hydrolase is cytosolic in fungi and mammals. Papain-like cysteine proteinases are essentially synthesised as inactive proenzymes (zymogens) with N-terminal propeptide regions. The activation process of these enzymes includes the removal of propeptide regions, which serve a variety of functions in vivo and in vitro. The pro-region is required for the proper folding of the newly synthesised enzyme, the inactivation of the peptidase domain and stabilisation of the enzyme against denaturing at neutral to alkaline pH conditions. Amino acid residues within the pro-region mediate their membrane association, and play a role in the transport of the proenzyme to lysosomes. Among the most notable features of propeptides is their ability to inhibit the activity of their cognate enzymes and that certain propeptides exhibit high selectivity for inhibition of the peptidases from which they originate.

Structure

    The papain precursor protein contains 345 amino acid residues, and consists of a signal sequence (1-18), a propeptide (19-133) and the mature peptide (134-345). The amino acid numbers are based on the mature peptide. The protein is stabilised by threedisulfide bridges. Its three-dimensional structure consists of two distinct structural domains with a cleft between them. This cleft contains the active site, which contains a catalytic diad that has been likened to the catalytic triad of chymotrypsin. The catalytic diad is made up of the amino acids - cysteine-25 (from which it gets its classification) and histidine-159. Aspartate-158 was thought to play a role analogous to the role of aspartate in the serine protease catalytic triad, but that has since then been disproved. Nonetheless, it does appear to play a role.

 

ItemsStandard
Appearance White Powder
Mesh 98% Pass 80mesh
Activity of enzyme(USP U/MG) 6000 Min
Loss on drying(%) 5.0 Max
Ash(%) 5.0 Max
Heavy metals(ppm) 20.0 Max
Pb(ppm) 2.0 Max
As(ppm) 2.0 Max
Total Plate Count(cfu/g) 10000 Max
Yeast & Mold(cfu/g) 100 Max
E.Coli Negative
Salmonella Negative

Why choose Foodchem

• TOP 10 Food enterprise in China
• Over 9 years of experience
• Wholly owned production plant (1200㎡)
• Sales to more than 70 countries
• 200 products with competitive price
• FCL, 2-5mt LCL, long contract, year contract available
• Halal, Kosher, ISO 9001 certified
• High quality products, complying with BP/USP/FCC/EU standard
• 1000 ㎡ owned office and 3000 ㎡ warehouse

Related Products

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