- 理化性质
小豆蔻明(Cardamonin),为黄色针晶,易溶于甲醇、乙醇、醋酸乙酯,乙醚,稀碱溶液,难溶于水,与醋酸铅反应呈黄色沉淀。小豆蔻明可以明显抑制络氨酸酶的活性,同时可以有效抑制黑色素细胞增殖和黑色素的合成,效果明显超过其他成分。
- 生物活性
(E)-Cardamonin ((E)-Cardamomin) 是新颖的hTRPA1阳离子通道拮抗剂,IC50值为454 nM。
- 靶点
Target
Value
NF-κB
(Cell-free assay)
TRPA1
(Cell-free assay)
454 nM
- 体外研究
(E)-Cardamonin ((E)-Cardamomin) selectively blocksTRPA1 activation (IC
50
=454 nM) while does not interact with TRPV1 nor TRPV4 channel. Docking analysis of cardamonin demonstrates a compatible interaction with A-967079-binding site of TRPA1. (E)-Cardamonin ((E)-Cardamomin) does not significantly reduce HEK293 cell viability, nor does it impair cardiomyocyte constriction. (E)-Cardamonin ((E)-Cardamomin) suppresses the expression of Tgase-2, cyclooxygenase-2 (COX-2), and p65 (nuclear factor-κB) in a concentration-dependent manner, and restores the expression of IκB in MG63 and Raw264.7 cells.
- 体内研究
(E)-Cardamonin ((E)-Cardamomin) (3-30 mg/kg, orally administered) significantly inhibits PBQ-induced writhing. CDN also produces a significant, dose-dependent increase in the withdrawal response latencies in carrageenan-induced hyperalgesia.
- 化学性质
黄色结晶性粉末,可溶于甲醇、乙醇、DMSO等有机溶剂,来源于草豆蔻。
- 小豆蔻明具有抗菌、止呕、健脾的作用。
- 用于含量测定/鉴定/药理实验等
- 概述
司盘属于合成的非离子乳化剂,由山梨醇或山梨醇酐与食用级棕榈酸进行部分酯化反应而制得。其为浅奶黄色至棕黄色细珠状、片状或硬质蜡状颗粒,有柔和的油脂气味和焦糖甜味。司盘-85不是单一的化合物,而是具各种相似组成的混合物,以山梨醇醉三油酸酚为主体。它粘度低,HLB值为最小,因而亲油性最强,是优良的油包水型(w/O)乳化剂,也是O/w型的辅助乳化剂。
- 制备
司盘85的制备方法:将10g山梨醇和10g油酸在搅拌器中预先混合搅匀,加入0.03g中性催化剂,以2℃/min的速度升温到220℃,继续搅拌,当酸值(mgKOH/g) ≤15后,降温出料,得到黄色油状液体,测试结果为:羟值(mgKOH/g) 为65,皂化值为170,水分≤1.5%。
- 化学性质
本品为琥珀色至棕色油状液体,相对密度(25℃)为0.95±0.05,熔点10℃,微溶于异丙醇、四氯乙烯、二甲苯、棉子油、矿物油。
- 本品在医药、化妆品、纺织、油漆、石油产品、采油业作乳化剂、增溶剂、防锈剂。
- 用作乳化剂、润滑剂、润湿剂、分散剂、增稠剂等
- 气相色谱固定液,非离子表面活性剂,水/油型乳化剂,分散剂。
Sorbitane trioleate, or Span 85, has been used in a study to develop a novel bottom-up process to produce nanoparticles containing protein and peptide for suspension in hydrofluoroalkane propellants. It has also been used in a study to analyze the application of liquid chromatography in polymer non-ionic antistatic additives.