摘要
为了有效地综合利用渝产全缘火棘果,采用索氏提取法提取渝产全缘火棘果油,然后使用DPPH自由基清除作用和亚铁还原能力(FRAP)来检测该油的抗氧化活性,最后将该油甲酯化后,经气相色谱-质谱联用仪(GC-MS)分析该果油的成分。结果:全缘火棘果油的产率为1.1%,并且发现该油具有较好的清除DPPH自由基的作用和亚铁还原能力。从甲酯化的全缘火棘果油中鉴定出了30个化合物,占该油总提取物的89.0%,主要成分为棕榈酸甲酯(20.3%)、亚油酸甲酯(18.7%)、亚麻酸甲酯(22.8%)和硬脂酸甲酯(4.6%),由此说明全缘火棘果油含有丰富的棕榈酸、亚油酸和亚麻酸,并且亚麻酸的含量高于目前市场上其他常见食用油脂,因此全缘火棘果油具有较高的开发利用价值。
To utilize the Pyracantha atalantioides fruits from Chongqing effectively,using Soxhlet extractor method to extract the oil,then the antioxidant capabilities of the oil were evaluated by DPPH free radical scavenging activity and ferric reducing antioxidant power（ FRAP） assay. Last,the constituents of the methyl- esterification product of the oil were analyzed by gas chromatography- mass spectrometry（ GC- MS）,after methyl esterification of free fatty acids of the oil.From the above results,the yield of the oil was 1.1%,and the oil exhibited potent antioxidant activity by scavenging DPPH radicals and ferric reducing ability. Thirty compounds,which occupied 89.0% of total constituents,were identified. The dominant components were methyl palmitate（ 20.3%）,linoleic acid methyl ester（ 18.7%）,linolenic acid methyl ester（ 22.8%） and stearic acid methyl ester（ 4.6%）,which illustrated the oil of the P.atalantioides fruits was rich in palmic acid,linoleic acid and linolenic acid.And also,the content of linolenic acid in the oil was higher than in the current other edible oils.So the oil of P.atalantioides fruits was worthy of development and utilization.
出处
《食品工业科技》
CAS
CSCD
北大核心
2016年第9期81-84,88,共5页
Science and Technology of Food Industry
基金
国家自然科学基金资助(21402017)
关键词
全缘火棘果油
抗氧化活性
GC-MS
the oil of Pyracantha atalantioides fruits
antioxidant activity
GC-MS
