Studies on the enzymatic synthesis of phytostyerol and phytostanol esters were described 介绍了植物甾醇酯和植物甾烷醇酯的酶催化合成方法。
Dinosterane from the neoproterozoic datangpo black shales and its biological implications 新元古代大塘坡组黑色页岩中的甲藻甾烷及其生物学意义
This oil is characterized by relatively low isomerization ratios of steranes , but slightly higher density and viscosity than those of type 1 该类原油甾烷异构化指标偏低,粘度和密度相对高于第一类原油,但仍为稀油。
Animal and vegetable fats and oils - determination of stigmastadienes in vegetable oils - part 1 : method using capillary - column gas chromatography reference method 动植物脂肪和油.植物油中豆甾烷stigmastidenes的测定.第1部分:毛细管柱气相色谱法
Oil type 1 , non - biodegraded oil , is characterized by low viscosity , low density , high content of saturated fraction , low content of resin and asphaltene and high ratio of isomerization of steranes 第一类原油粘度和密度低,族组成以饱和烃组分为主,非烃和沥青组分含量低,甾烷异构化指标高,未遭受生物降解。