Analysis of the chemical constituents of Thompson atemoya seed oil

Abstract The objective of this study was to characterize the chemical composition in extracts of atemoya (var. Thompson) seed oil by spectrometric methods. The following extraction methods were performed: chemical extraction using hexane, mechanical extraction using a press, and partitioned extraction. The composition of each of the extracts was analysed by gas chromatography-mass spectrometry (GC-MS), and more than 100 compounds were identified. The major constituents of the hexane extraction were (Z)-hexadec-9-enal (49.42%) and triolein (23.28%), and the mechanically obtained extract contained elaidic acid (66.11%) and stearic acid (8.81%). In the partitioned extraction, the hydromethanolic fraction contained dihydroxyacetone (19.16%), 3-deoxy-d-mannoic lactone (16.34%), 5-hydroxymethylfurfural (10.77%), and 3-propanediol, 2-(hydroxymethyl)-2-nitro (9.89%); the hexane fraction contained gamma-sitosterol (31.73%), erucic acid (14.64%), stigmasterol (13.30%) and triolein (10.90%); the chloroform fraction contained gamma-sitosterol (22.11%), vaccenic acid (15.49%), triolein (14.65%) and stigmasterol (10.65%); and the ethyl acetate fraction contained (Z)-icos-9-enoic acid (31.28%), beta-sitosterol (16.29%), pentadecanoic acid (11.53%) and eicosanoic acid (8.01%).

摘要 本研究旨在通过光谱法对汤普森品种阿蒂莫耶番荔枝（Atemoya）籽油提取物的化学成分进行表征。本研究采用三类提取方法：正己烷化学提取法、机械压榨提取法及分段萃取法。所有提取物的成分均通过气相色谱-质谱联用法（Gas Chromatography-Mass Spectrometry, GC-MS）进行分析，共鉴定出100余种化合物。正己烷提取物的主要成分为(Z)-9-十六烯醛（49.42%）和甘油三油酸酯（23.28%）；机械压榨提取物以反油酸（66.11%）和硬脂酸（8.81%）为主要成分。分段萃取的甲醇水相馏分中含有二羟基丙酮（19.16%）、3-脱氧-D-甘露糖酸内酯（16.34%）、5-羟甲基糠醛（10.77%）以及2-(羟甲基)-2-硝基-1,3-丙二醇（9.89%）；正己烷馏分的主要成分为γ-谷甾醇（31.73%）、芥酸（14.64%）、豆甾醇（13.30%）和甘油三油酸酯（10.90%）；氯仿馏分中含有γ-谷甾醇（22.11%）、11-反式十八碳烯酸（15.49%）、甘油三油酸酯（14.65%）和豆甾醇（10.65%）；乙酸乙酯馏分则含有(Z)-9-二十碳烯酸（31.28%）、β-谷甾醇（16.29%）、十五烷酸（11.53%）和二十烷酸（8.01%）。