product name
紫黄质, ≥90.0% (HPLC)
质量水平
检测方案
≥90.0% (HPLC)
形式
solid
λ
in ethanol
紫外吸收
λ: 438-442 nm Amax
储存温度
−20°C
SMILES字符串
CC(/C=C/[C@@]12[C@](C)(O2)C[C@@H](O)CC1(C)C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(\C=C\[C@]34C(C)(C)C[C@H](O)C[C@]3(O4)C)C
InChI
1S/C40H56O4/c1-29(17-13-19-31(3)21-23-39-35(5,6)25-33(41)27-37(39,9)43-39)15-11-12-16-30(2)18-14-20-32(4)22-24-40-36(7,8)26-34(42)28-38(40,10)44-40/h11-24,33-34,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t33-,34-,37+,38+,39-,40-/m0/s1
InChI key
SZCBXWMUOPQSOX-WVJDLNGLSA-N
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一般描述
紫黄质是一种从植物中获得的环氧化类胡萝卜素。它是一种橙色的天然叶黄素色素。
应用
紫黄质已被用作色素提取物的高压液相色谱（HPLC） 分析中的标准品/对照品，用于确认 Nt-AXT 植物视觉表型的高水平虾青素积累。
生化/生理作用
紫黄质是一种强抗氧化剂，也是岩藻黄质和β-大马酮等重要化合物的重要前体。它是叶黄素循环的非光化学荧光猝灭结构成分，可保护光合系统免受过量光照的影响。从空心菜中提取的紫黄质具有很强的2,2′-联氮双-3-乙基苯并噻唑啉-6-磺酸 （ABTS+）自由基清除作用，还可抑制脂质过氧化和红细胞溶血。因此，它有望用于各种医药和保健产品。
紫黄质是一种环氧胡萝卜素，是辣椒素的前体。它是参与绿色植物质体进化（氧进化）的三种叶黄素之一，并参与光诱导的相互转换，即紫黄质循环。9-顺式环氧类胡萝卜素（紫黄质）裂解为黄黄素是脱落酸生物合成的关键调控步骤。
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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When light energy absorbed by plants becomes excessive relative to the capacity of photosynthesis, the xanthophyll violaxanthin is reversibly deepoxidized to zeaxanthin (violaxanthin cycle). The protective function of this phenomenon was investigated in a mutant of Arabidopsis thaliana, npq1, that
Feifei Wang et al.
Marine drugs, 16(6) (2018-06-03)
Violaxanthin is a major xanthophyll pigment in the microalga Eustigmatos cf. polyphem, but the amount produced after propagation can vary depending upon culture conditions. In this study, the effects of cultivation time, nitrogen concentration, light intensity, and culture mode on
T Kinoshita et al.
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The stomatal pores of higher plants allow for gaseous exchange into and out of leaves. Situated in the epidermis, they are surrounded by a pair of guard cells which control their opening in response to many environmental stimuli, including blue
Yinghong Lu et al.
Current biology : CB, 27(19), 3034-3041 (2017-09-26)
Transgene expression from the plastid (chloroplast) genome provides unique advantages, including high levels of foreign protein accumulation, convenient transgene stacking in operons, and increased biosafety due to exclusion of plastids from pollen transmission [1, 2]. However, applications in biotechnology and
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