黄龙沙棘果实中油精的分离及结构鉴定

为了解沙棘压榨汁内漂浮物中脂溶性有色物质的成分,以黄龙沙棘鲜果为试样,用提取色素法;经溶剂提取和薄层色谱分离,得到8种有色物质,其中有一种对光比较稳定的黄色油状液体,经IR及H—NMR鉴定,谱图与有机物物理常数和光谱谱图册中油精的数据一致。又用UV测试,200～400nm无吸收峰;400～500nm有两处最大吸收峰。测定结果与相应谱图表明,经提纯的这种黄色油状液体是油精。

ISOLATION OF TRIOLEIN FROM FRUITS OF HIPPOPHAE RHAMNOIDES OF HUANGLONG AND IDENTIFICATION OF ITS STRUCTURE

In order to understand the compositions of coloured fat soluble substances in the floating matters in the pressed inice of Hippophae Rhamnoides, the fresh fruit of Hippophae Rhamnoides from Huang-Long was used as the materials to be extracted with solution using the pigment method, and with acetone , petroleum and then separated with thinlayer chromatography from which eight coloured substances were obtained, of which one yellowish oily liquid stable to light was identified using IR and H-NMR. The results were in agreement with the data of triolein with "Atlas of Spectral data and physical constant for organic compounds II" . Again, the substance was determined using UV, in 200-400 nm there were no absorbance peak values, but in 400-500 nm there were two highest absorbance peaks.The results and the corresponding spectral atlas showed that this yellowish oily liquid through purification was triolein.