USD $8.00-10.00 / Metric Ton
USD $8.00-50.00 / Metric Ton
USD $2.30-10.00 / Metric Ton
USD $2.00-5.00 / Metric Ton
USD $1.00-8.00 / Metric Ton
USD $1.00-3.00 / Metric Ton
USD $35.00-69.00 / Metric Ton
β-carotene is an organic, strongly colored red-orange pigmentabundant in plants and fruits. it is a member of thecarotenes, which are terpenoids (isoprenoids), synthesized biochemically from eight isoprene units and thus having 40carbons. among the carotenes, β-carotene is distinguished by having beta-rings at both ends of the molecule. β-carotene is biosynthesized fromgeranylgeranyl pyrophosphate. |
β-carotene is the most common form of carotene in plants. when used as a food coloring, it has the e numbere160a. 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.
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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 ashexane. being highly conjugated, it is deeply colored, and as ahydrocarbon lacking functional groups, it is very lipophilic. |
2. uses
beta-carotene is found in many foods and is sold as a dietary supplement. medical authorities generally recommend getting beta-carotene from food rather than supplementation.
there is insufficient research to determine whether there is some minimum level of beta-carotene consumption that is necessary for human health and to identify what problems might arise from insufficient beta-carotene intake.
3. specifications
tests |
specifications |
results |
assay |
93.5% to 96.0% |
96.0% |
appearance |
yellow fine powder |
yellow fine powder |
odor and taste |
characteristic |
complies |
specific rotation |
-155±2° |
complies |
loss on drying |
max. 0.5% |
0.3% |
residue on ignition |
max. 0.2% |
0.05% |
heavy metals |
max.10 ppm |
complies |
microbiology control total plate count yeast & mold e.coli s. aureus salmonella |
max.1,000cfu/g max.100cfu/g negative negative negative |
nmt 1,000cfu/g nmt 100cfu/g complies complies complies |
4. about us
founded in 2014, as a professional international pharmaceutical corporation, headquartered in xi'an (china), konochemco., ltd. is a leading producer of standardized herbal extracts, natural active ingredients and apis for pharmaceutical, health food and cosmetic industries.