β-Carotene is an organic, strongly

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.[5] β-Carotene is the most common form of carotene in plants. When used as a food coloring, it has the E number E160a.[6]:119 The structure was deduced by Karrer et al. in 1930.[7] In nature, β-carotene is a precursor (inactive form) to vitamin A via the action of beta-carotene 15,15'-monooxygenase.[5] 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.[8] 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.[9] Being highly conjugated, it is deeply colored, and as a hydrocarbon lacking functional groups, it is very lipophilic.

結果 (繁體中文) 1:

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.[5]

β-Carotene is the most common form of carotene in plants. When used as a food coloring, it has the E number E160a.[6]:119 The structure was deduced by Karrer et al. in 1930.[7] In nature, β-carotene is a precursor (inactive form) to vitamin A via the action of beta-carotene 15 ,15'-monooxygenase.[5]

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.[8] 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.[9] Being highly conjugated, it is deeply colored, and as a hydrocarbon lacking functional groups , it is very lipophilic.

結果 (繁體中文) 2:

β-胡蘿蔔素是一種有機的、顏色強的紅橙色色素，富含植物和水果。它是胡蘿蔔素的成員，這是三烯類動物（異類），從8個異丙烯單位進行生物化學合成，因此有40個碳。在胡蘿蔔素中，β-胡蘿蔔素通過在分子的兩端具有β環來區分。β-胡蘿蔔素是由吉蘭格蘭蘭醇焦磷酸鹽生物合成的。[5]

β-胡蘿蔔素是植物中最常見的胡蘿蔔素形式。當用作食品著色時，它有E編號E160a。[6]：119 該結構由Karrer等人于1930年推匯出。[7] 在自然界中，β-胡蘿蔔素是通過β-胡蘿蔔素15，15'-單氧酶的作用，對維生素A的前體（非活性形式）進行。[5]

通常使用柱色譜法從富含類胡蘿蔔素的水果中分離β-胡蘿蔔素。它也可以從富含β-胡蘿蔔素的藻類中提取，杜納利拉薩利納。[8] β-胡蘿蔔素與其他類胡蘿蔔素混合物的分離基於化合物的極性。β-胡蘿蔔素是一種非極性化合物，因此與己帶等非極性溶劑分離。[9] 高度結合，顏色深厚，作為一種缺乏功能性的碳氫化合物，具有很強的親脂性。

結果 (繁體中文) 3:

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.[5]
β-Carotene is the most common form of carotene in plants. When used as a food coloring，it has the E number E160a.[6]：119 The structure was deduced by Karrer et al. in 1930.[7] In nature，β-carotene is a precursor（inactive form）to vitamin A via the action of beta-carotene 15,15'-monooxygenase.[5]
Isolation ofβ-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.[8] The separation ofβ-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.[9] Being highly conjugated，it is deeply colored，and as a hydrocarbon lacking functional groups，it is very lipophilic.