Fatty acid profile, tocopherol, squalene and phytosterol content of brazil, pecan, pine, pistachio and cashew nuts
Fatty acid profile, tocopherol, squalene and phytosterol content of brazil, pecan, pine, pistachio and cashew nuts
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DOI：
10.1080/09637480600768077
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发表时间：
2006-05-01
影响因子：
3.9
通讯作者：
O'Brien, N. M.
中科院分区：
文献类型：
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作者：
Ryan, E.;Galvin, K.;O'Brien, N. M.
坚果含有生物活性成分，可以产生心脏保护作用，包括植物甾醇、生育酚和角鲨烯。本研究的目的是测定从新鲜磨碎的巴西、山核桃、松树、开心果和腰果中提取的油的总油含量、过氧化值、脂肪酸组成以及生育酚、角鲨烯和植物甾醇的含量。坚果的总油含量为40.4~60.8%(w/w)，过氧化值为0.14~0.22mEq·O~(-2)/kg油。最丰富的单不饱和脂肪酸是油酸(C18：1)，而亚油酸(C18：2)是最常见的多不饱和脂肪酸。总生育酚含量在60.8mgg~291.0 mg/g之间，角鲨烯含量在松子中39.5mgg/g至巴西果中1377.8 mg/g之间。β-谷甾醇是含量最高的植物甾醇，含量在1325.4-4685.9 mg/g油之间。总而言之，目前的数据表明，坚果是不饱和脂肪酸、生育酚、角鲨烯和植物甾醇的良好膳食来源。
Nuts contain bioactive constituents that elicit cardio-protective effects including phytosterols, tocopherols and squalene. The objective of the present study was to determine the total oil content, peroxide value, fatty acid composition and levels of tocopherols, squalene and phytosterols in oil extracted from freshly ground brazil, pecan, pine, pistachio and cashew nuts. The total oil content of the nuts ranged from 40.4 to 60.8% (w/w) while the peroxide values ranged from 0.14 to 0.22 mEq O-2/kg oil. The most abundant monounsaturated fatty acid was oleic acid (C18:1), while linoleic acid (C18:2) was the most prevalent polyunsaturated fatty acid. The levels of total tocopherols ranged from 60.8 to 291.0 mg/g. Squalene ranged from 39.5 mg/ g oil in the pine nut to 1377.8 mg/ g oil in the brazil nut. beta-Sitosterol was the most prevalent phytosterol, ranging in concentration from 1325.4 to 4685.9 mg/g oil. In conclusion, the present data indicate that nuts are a good dietary source of unsaturated fatty acids, tocopherols, squalene and phytosterols.