1.Thirteen compounds were isolated from the roots of Jatropha curcas L. Combining the determination of physico chemical constants and spectral analyses (IR, 1H NMR, 13 C NMR, EIMS, FABMS), the structures of the compounds were identified as 5α stigmastane 3,6 dione (1), nobiletin (2), β sitosterol (3), taraxerol (4), 2S tetracosanoic acid glyceride 1 (5), 5 hydroxy 6,7 dimethoxycoumarin (6), jatropholone A (7), jatropholone B(8), 6 methoxy 7 hydroxycoumarin (9), caniojane (10),3 hydroxy 4 methoxybenzaldehyde (11), 3 methoxy 4 hydroxybenzoic acid (12) and daucosterol (13) Among them, compound 5 is a new compound which has never been reported in China and abroad, compound 1,2,9,10,11,12 were first time isolated from the plant, 7 and 8 are a pair of stereoisomers which can be inverted in dilute basic solution. 10 is a diterpenoid containing peroxide bridge.
从麻疯树(Jatropha curcas L.)的根中分离到13 个化合物,经理化常数和波谱鉴定(IR、1H-NMR、13C-NMR、EIMS和FABMS)分别为∶5α-豆甾烷-3,6-二酮(1)、川皮甙(2)、β-谷甾醇(3)、蒲公英脑(4)、2S-正二十四饱和脂肪酸甘油酯-1(5)、5-羟基-6,7-二甲氧基香豆素(6)、麻疯树酚酮A(7)、麻疯树酚酮B(8)、6-甲氧基-7-羟基香豆素(9)、caniojane (10)、3-羟基-4-甲氧基-苯甲醛(11)、3-甲氧基-4-羟基苯甲酸(12)和胡萝卜甙(13). 其中,化合物5 为未见报道的新化合物,化合物1、2、9、10、11、12 为首次从该植物中分得,10 为含有过氧基团的二萜化合物. 7 和8 为一对四环二萜的立体异构体,并在碱中相互转化
2.Acylglycerol (glyceride) An ester of glycerol and one or more fatty acids.
酰基甘油:一种甘油酯或者一种或几种脂肪酸。
3.This paper describes briefly the flavor materials being resistant to high temperature and having a long-lasting taste and odor, including acetals, long-lasting cooling agent, substituted fatty acid glyceride and glucoside.
摘要本文简单介绍了食用香料中的长效和耐高温香料。它们包括缩醛类、长效凉味剂、取代脂肪酸甘油酯和糖苷等。
4.The results show that T800 sizing possesses high content of ester,which can possess excellent interfacial properties with glyceride epoxy. With the help of the optimized resin system,the T800 CF composite possesses excellent interfacial properties and heat-resistance properties. The interlaminar shear strength(ILSS) of the composite is 138 MPa,the tensile strength of NOL rings is 2530 MPa,and the glass transition temperature(T_g) is 213 ℃.
结果表明,T800碳纤维表面上胶剂中酯基含量较高,与缩水甘油酯类环氧树脂有良好的界面相容性,经复配和优化的树脂体系其T800碳纤维复合材料的层间剪切强度达到138 MPa,NOL环拉伸强度达到2530MPa,玻璃化温度(Tg)达到213℃,具有优异的界面性能和耐热性能。
5.The research was performed to examine anthropometric measurements and biochemical measurements such as fasting plasma insulin,glyceride(TG),total cholesterol(TC)and high density lipoprotein cholesterol(HDL一c)in 50 pairs of adolescents who were 50 obese, 50 normal weight, aged l2一l7 years.
本研究对50对12~17岁肥胖和体重正常的青少年进行了身体形态学指标和空腹胰岛素、甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL一C)等生化指标的检测。
6.a colorless oily liquid occurring as a glyceride in almost all natural fats; used in making soap and cosmetics and ointments and lubricating oils.
一种无色的油质液体,作为甘油酯存在于几乎所有天然油脂中,用于制造肥皂、化妆品、药膏和润滑油。
7.a waxy saturated fatty acid; occurs widely as a glyceride in animal and vegetable fats.
一种蜡质饱和脂肪酸,作为甘油脂广泛存在于动物和植物脂肪中。
8.a naturally occuring glyceride of oleic acid that is found in fats and oils.
天然形成的油酸甘油酯,见于脂肪和油脂中。