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研究了银杏（ＧｉｎｋｇｏｂｉｌｏｂａＬｉｎｎ）叶和杉木（ＣｕｎｎｉｎｇｈａｍｉａｌａｎｃｅｏｌａｔａＨｏｏｋ）绿冠石油醚提取物的化学组分，叙述了分离分析方法。银杏叶的石油醚提取物得率，为其绝干重量的４．３％。其中游离酸占２４．６％，它是由Ｃ１２～Ｃ２４的高级脂肪酸组成，其中最大的组分是硬脂酸，蜡占１％，中性物质占７２．７％。在中性物质中，碳氢化合物占６．２％，高级脂肪酸酯２１．０％，乙酸酯１５．２％，甘油三酰酯３．０％，醇类２０．４％，甾醇类１７．４％，含氧多功能团化合物１２．６％。杉木绿冠的石油醚提取物得率，为其绝干重量的５．４％。其中，游离酸占１０．４％，主要由劳丹二萜烯酸组成，蜡占４．０％，中性物质占８５．３％，其中碳氢化合物占２．０％，高级脂肪酸酯２８．８％，树脂酸甲酯０．２％，乙酸酯３７．６％，甘油三酰酯１．５％，醇类１６．２％，甾醇类１０．３％，含氧多功能团化合物３．０％。这些化合物都具有很强的生物活性，可用作医药、化妆品和食品漆加剂。有关杉木绿冠石油醚提取物的化学组分分析在文献中是首次报道
The chemical constituents of the petroleum ether extract of Ginkgo biloba Linn. And Cunninghamia lanceolata Hook were studied, and the separation and analysis methods were described. The yield of petroleum ether extract from Ginkgo biloba was 4.3% of its absolute dry weight. The free acid accounted for 24.6%, which is composed of C12 ~ C24 fatty acids, the largest component is stearic acid, wax accounted for 1%, 72.7% of neutral substances. In neutrals, hydrocarbons make up 6.2%, higher fatty acid esters 21.0%, acetates 15.2%, triacylglycerols 3.0%, alcohols 20.4%, sterols 17.4%, oxygen-containing multi-functional compounds 12.6%. The petroleum ether extract yield of Chinese fir crown was 5.4% of its absolute dry weight. Among them, the free acid accounted for 10.4%, mainly composed of Laudan diterpenic acid, wax accounted for 4.0%, 85.3% of neutral substances, of which hydrocarbons accounted for 2.0%, higher fatty acid esters 28.8%, methyl resinate 0.2%, acetate 37.6%, triacylglycerol 1.5%, alcohols 16.2%, sterols 10.3%, oxygen-containing multifunctional groups Compound 3.0%. These compounds are highly bioactive and can be used as pharmaceutical, cosmetic and food additives. The chemical composition analysis of Cephalosporium stearum extract was first reported in the literature