Botanical Source: Vaccinium myrtillus L.
CAS NO.: 84082-34-8
Part Used: Berry
Specification: Anthocyanidins 15%, 25%, 35% by UV;
Anthocyanins 15%, 25%, 35% by HPLC.
Bilberry, with scientific name as Vaccinium myrtillus., belongs to the azalea family. In Europe, North America and Canada, as nutritious food, it may help form iodopsin, thus making eyes suit with the light, keeping vision in dark light and reducing fatigue sense. At present, bilberry extracts are widely used in health-care products for vision and cardiovascular, such as retinitis, cataract, glaucoma and piles caused by diabetes.
Main chemical composition:
The chemical composition in bilberry mainly as: anthocyanidins, organic acid, polysaccharides, tocopherol, alkaloids, volatile and other ingredients.
(1). Compounds of flavonoids
Mainly as anthocyanin and other flavonoids compounds. Inside anthocyanin(anthocyanoside),there are 5 kinds of anthocyanin: cyanidin, delphinidine, malvidin, petunnidin, peonidin and galactose, arabinose, glucose orrhamnose; For other flavonoids, mainly as quercetin, kaempferol and myricetin, in addition, also with hyperin, quercitrin and isoquercitrin. Also there are some reports bilberry containing catechin, lL-epigollocatecholl-gollocatechol and dl-gollocatechol.
(2). Organic acids
There are great number of organic acids in bilberry fruits, mainly as citric acid, malic acid, shikimic acid, quinic acid, glycolic acid, succinic acid, citramalic acid, glyceric acid, malonic acid, glucuronic acid, galacturonic acid, chlorogenic acid, caffeic acid and phosphoric acid, also some others as paracoumaric acid, o-coumaric acid, m-coumaric acid, ferulic acid, syringic acid and vanillic acid, etc.
(3). Other ingredients
There are also some ingredients of volatile, polysaccharides,tocopherol and alkaloids in bilberry fruits. In addition, there are great number of amino acids and mineral materials in it, mainly as cystine acid, cysteine acid, lysine acid, histidine acid, arginine acid, asparagines, serine acid, tryptophan acid, valine acid, tyrosine acid, pyenyalanine acid, leucine acid and proline acid.
Protect capillaries from free radical damage;
Bilberry is a rich source of anthocyanosides, compounds possess potent antioxidant ;
A treatment for mild inflammation of the mucous membranes of mouth and throat;
Treating for diarrhea, enteritis, urethritis, cystitis and virosis rheum epidemic, with its antiphlogistic and bactericidal action.
|Analysis Items||Specifications||Results|| Methods used|
|Identification by Chemical||Appears red in Citris Acid buffer solution (pH3)||Conforms||Organoleptic test|
|Identification by UV||In Citric Acid buffer solution (pH3),absorption maximum peak appears between 500-540nm.||Conforms||CP2005|
|Appearance||Fine Dark Violet Powder||Conforms||Visual test|
|Odor & Taste||Characteristic||Conforms||Organoleptic test|
|Bulk Density||40-50g/100ml||Conforms||ASTM D1895B|
|Particle Size||NLT 99% pass through 80 mesh sieve||Conforms||AOAC 973.03|
|Solubility||Good soluble in water||Conforms||Visual|
| || || || || || || || |
|Assay||NLT 15% Anthocyanidins||15.21%||UV-VIS|
|Loss on Drying||NMT 5.0%||3.21%||USP|
|Ash Content||NMT 5.0%||2.60%||2g /525ºC /3hrs|
|Extract Solvents||Grain Alcohol (v/v) & water||Conforms||/|
|Solvent Residues||Ethanol 50ppm Max.||Conforms||GC|
| || || || || || || || |
|Heavy Metals||NMT 10ppm||Conforms||Atomic Absorption|
|Arsenic (As)||NMT 0.5ppm||Conforms||Atomic Absorption|
|Lead (Pb)||NMT 0.5ppm||Conforms||Atomic Absorption|
|Cadmium (Cd)||NMT 0.5ppm||Conforms||Atomic Absorption|
|Chlorate (Cl)||NMT 1ppm||Conforms||Atomic Absorption|
| || || || || || || || |
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