3种沙棘油的主要成分及抗氧化能力比较  

Main Components and Antioxidant Activity of Three Kinds of Seabuckthorn Oil(Hippophae Rhamnoides L.)

作　　者：郑满荣 吕晓玲[1] 王建新 王璐瑶[1] 吴亚平 冯健峰 ZHENG Man-rong;LV Xiao-ling;WANG Jian-xin;WANG Lu-yao;WU Ya-ping;FENG Jian-feng(College of Food Engineering and Biotechnology,Tianjin University of Science&Technology,Tianjin 300457,China)

机构地区：[1]天津科技大学食品工程与生物技术学院,天津300457

出　　处：《食品研究与开发》2018年第8期24-29,共6页Food Research and Development

摘　　要：比较3种沙棘油的脂肪酸组成、总酚含量以及体外抗氧化能力。根据国标测定3种沙棘油的理化性质,采用气相色谱法测定3种沙棘油的主要脂肪酸及相对百分含量,紫外可见分光光度计法测定了总酚含量,以及DPPH自由基清除能力、ABTS^+自由基清除能力、还原能力和总抗氧化能力。3种沙棘油主要含有棕榈酸、硬脂酸、油酸、亚油酸和亚麻酸这5种脂肪酸,含量各不相同,3种沙棘油脂肪酸含量的区别主要在于亚油酸和亚麻酸,沙棘籽油含量约为64.52%、沙棘果油含量约为58.02%、沙棘全果油含量约为60.46%,其中以沙棘果油的亚油酸含量最高,以沙棘籽油的亚麻酸含量最高。DPPH自由基清除率和总抗氧化能力方面,三者没有显著差异;在还原力方面,沙棘籽油>沙棘全果油>沙棘果油;在ABTS^+自由基清除试验中,沙棘果油的效果略好于其他两者。In this study,the fatty acid composition,total phenol content and the in vitro antioxidant capacity of three kinds of seabuckthorn oil were compared.The physicochemical properties of three kinds of seabuckthorn oil were determined according to GB,and the main fatty acids and relative percentage composition of three seabuckthorn oil were determined by gas chromatography(GC).The total phenol content,DPPH free radical scavenging ability,ABTS+free radical scavenging capacity,reducing power and total antioxidant capacity were measured by UV-Vis spectrophotometer.These 3 kinds of seabuckthorn oil mainly contain 5 kinds of fatty acids,palmitic acid,stearic acid,oleic acid,linoleic acid and linolenic acid,which are different in content.The differences between fatty acid content of these 3 kinds of seabuckthorn are mainly linoleic acid and linolenic acid.The contents of fatty acids in seabuckthorn seed oil,seabuckthorn fruit oil and seabuckthorn total fruit oil were about 64.52%,58.02%and 60.46%,respectively.Among them,the linoleic acid content in seabuckthorn fruit oil was the highest,and the linolenic acid content in seabuckthorn seed oil was the highest.In DPPH free radical scavenging rate and total antioxidant capacity,there was no significant difference between the three kinds of seabuckthorn oil.In reducing power,seabuckthorn seed oil>seabuckthorn total fruit oil>seabuckthorn fruit oil.In the ABTS+free radical scavenging test,the scavenging effect of seabuckthorn fruit oil was slightly better than that of the other two oils.

关 键 词：沙棘籽油 沙棘果油 沙棘全果油 脂肪酸组成 抗氧化 

分 类 号：TS221[轻工技术与工程—粮食、油脂及植物蛋白工程]