Categories
Categories
Price: | US $ 25-3516 |
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Min Order: | 116 |
Pay Type: | L/C,T/T,D/P,Western Union,Paypal |
Prod Model: | Feed Grade |
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Resource: | Chemosynthesis |
β-Carotene is an organic, strongly colored red-orange pigment abundant in plants and fruits. It is a member of the carotenes, which are terpenoids(isoprenoids), synthesized biochemically from eight isoprene units and thus having 40 carbons. Among the carotenes, β-carotene is distinguished by having beta-rings at both ends of the molecule. β-Carotene is biosynthesized from geranylgeranyl pyrophosphate.
β-Carotene is the most common form of carotene in plants. When used as a food coloring, it has the E number E160a. The structure was deduced by Karrer et al. in 1930. In nature, β-carotene is a precursor (inactive form) to vitamin A via the action of beta-carotene 15,15'-monooxygenase.
Isolation of β-carotene from fruits abundant in carotenoids is commonly done using column chromatography. It can also be extracted from the beta-carotene rich algae, Dunaliella salina.The separation of β-carotene from the mixture of other carotenoids is based on the polarity of a compound. β-Carotene is a non-polar compound, so it is separated with a non-polar solvent such as hexane. Being highly conjugated, it is deeply colored, and as a hydrocarbon lacking functional groups, it is very lipophilic.
Specification
Test Standard | USP,PH.Eur,DAB,BP | ||
Color | Light red or red | ||
Odor | With beta carotene peculiar smell,no other smell | ||
Beta-carotene,% | ≥10 | ≥20 | ≥98 |
Appearance | Small spherical shape particles,good fluidity,no adhesion,good flexibility,no impurities | Dare red crystal | |
Loss on drying,% | ≤8 | ≤5 | ≤0.2% |
Particle diameter | 40-100mesh | 40-80mesh | 80-100mesh |
Heavy metals(Pb) | ≤10.0PPM | ≤10.0PPM | ≤10.0PPM |
Ignition residue,mg/Kg | ≤5.0 | ≤4.0 | ≤0.2% |
Dispersivity in water | Dispersed in cold water | Dispersed in cold water | Insoluble |
Packing: Packages are 25kg/bag,Which can meet the different package requirement of customers
Shipping: EMS,DHL,By Sea ,etc.
A.M Factory
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