Хятад Витамин В12 үйлдвэр ба үйлдвэрлэгчид | Тэксун

Витамин В12

Товч тодорхойлолт:

Vitamin B 12, also known as cobalt amine, is the only vitamin containing metal elements. In nature, vitamin B12 is synthesized by microorganisms. Higher animals and plants cannot make vitamin B12. Vitamin B12 is the only vitamin that requires the help of an intestinal secretion (endogenous factor) to be absorbed. Some people due to gastrointestinal abnormalities, lack of this endogenous factor, even if adequate dietary sources can also suffer from malignant anemia. There is basically no vi...


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Vitamin B 12, also known as cobalt amine, is the only vitamin containing metal elements. In nature, vitamin B12 is synthesized by microorganisms. Higher animals and plants cannot make vitamin B12. Vitamin B12 is the only vitamin that requires the help of an intestinal secretion (endogenous factor) to be absorbed. Some people due to gastrointestinal abnormalities, lack of this endogenous factor, even if adequate dietary sources can also suffer from malignant anemia. There is basically no vitamin B12 in vegetable foods. It stays in the gut for a long time and takes about three hours (most water-soluble vitamins take only a few seconds) to be absorbed. Vitamin B 12's main physiological function is to participate in the production of bone marrow red blood cells, prevent malignant anemia, prevent brain nerve damage. Vitamin B 12 is one of the last B vitamins to be found so far. Vitamin B12 is a polycyclic compound containing 3 valent cobalt. Four reduced pyrrole rings are linked together to form a Golin macroring (similar to porphyrin), which is the core of vitamin B12 molecule. Therefore, compounds containing this ring are referred to as Golin-like. Vitamin B12 is a light red acicular crystal which is easily soluble in water and ethanol. It is most stable under the condition of weak acid pH 4.5 and 5.0, and decomposes in strong acid (pH < 2) or alkaline solution, which can be destroyed to some extent in the event of heat. But short time high temperature disinfection loss is small, encounter bright light or ultraviolet ray is easy to be destroyed. The loss of ordinary cooking process is about 30%.

 

Бүтээгдэхүүний нэр: ВИТАМИН 12  gvbrwsbhrwesbrwesbrwesbrwes
CAS: 68-19-9
MF: C63H88CoN14O14P
MW: 1355.37  
EINECS: 200-680-0
Товчоор VB12 гэж нэрлэгддэг, мөн кобаламин гэж нэрлэгддэг, В бүлгийн амин дэмүүдийн нэг болох В12 аминдэм нь коррин ангиллын кобальт агуулсан цогц органик нэгдлүүдийн анги бөгөөд цагирагийн төв хэсэгт ижил төстэй порфирин Коррин хавтгайд гурван валент кобальт агуулдаг. .Энэ бол хамгийн том бөгөөд нарийн төвөгтэй витамины молекул юм. Энэ нь металлын ионтой цорын ганц витамин юм. Кристал нь улаан, түүнийг улаан амин дэм гэж нэрлэдэг бөгөөд ургамал нь VB12 агуулаагүй бөгөөд VB12 гаргаж авах боломжгүй юм. Элэг нь VB12-ийн хамгийн сайн эх үүсвэр бөгөөд дараа нь сүү, мах, өндөг, загас гэх мэт. VB12 бол РНХ ба ДНХ-ийн синтезийн чухал коэнзим юм. VB12 in vivo байхгүй нь мэдрэлийн системд захын мэдрэл, төв мэдрэлийн систем зэрэг эмгэг өөрчлөлтийг үүсгэдэг.

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