美国山核桃不同引种品种出油率及抗氧化性比较研究
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摘要
采用索氏提取法提取油脂,并采用分光光度法测定天然抗氧化剂清除DPPH的能力,研究12个不同引种的美国山核桃出油率和抗氧化性差异并与1个云南核桃作对比。结果表明:所有品种出油率均在60%~80%之间;抗氧化能力最强的是10号,其对应的IC5 0为58.94 mg/m L。说明美国山核桃油可以作为功能油脂加以开发和利用,并为优良品种的筛选提供了选择依据。
Soxhlet extraction was used to extract oils, and the scavenging DPPH ability of natural antioxidants were evaluated by spectrophotometry. The oil yield and antioxidant capacity of 12 varieties of Carya illinoinensis were studied and compared with a kind of Yunnan walnut. The results showed that the oil yields of all cultivars were between 60%-80% and the highest antioxidant capacity was No. 10 with the IC_(50) of 58.94 mg/m L. It was concluded that Carya illinoensis oil could be developed and utilized as functional oil, and it provided basis for selection of fi ne varieties.
Soxhlet extraction was used to extract oils, and the scavenging DPPH ability of natural antioxidants were evaluated by spectrophotometry. The oil yield and antioxidant capacity of 12 varieties of Carya illinoinensis were studied and compared with a kind of Yunnan walnut. The results showed that the oil yields of all cultivars were between 60%-80% and the highest antioxidant capacity was No. 10 with the IC_(50) of 58.94 mg/m L. It was concluded that Carya illinoensis oil could be developed and utilized as functional oil, and it provided basis for selection of fi ne varieties.
引文
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[3]洪丹丹.山核桃×薄壳山核桃授粉子代AFLP、SSR分析[D].杭州:浙江林学院,2007.
[4]王曼,李贤忠,宁德鲁,等.薄壳山核桃研究概况及发展趋势[J].林业调查规划,2009,34(6):93-95.
[5]董凤祥,王贵禧.美国薄壳山核桃引种及栽培技术[M].北京:金盾出版社,2003.
[6]柳镇安.核桃油中主要脂肪酸的毛细管柱气相色谱分析[J].化学世界,2000,41(4):212-213,224.
[7]张丽.核桃油脂提取及其稳定性的研究[D].新疆:石河子大学,2010.
[8]张鹏,钟海雁,姚小华,等.四种山核桃种仁含油率及脂肪酸组成比较分析[J].江西农业大学学报,2012,34(3):499-504.
[9]全先庆.沂州木瓜种仁油脂体外抗氧化能力研究[J].食品工业科技,2012,33(1):66-68.
[10]孟阿会.核桃油成分及抗氧化性质研究[D].北京:北京林业大学,2012.