碳离子束辐照对紫苏油品质和理化性质的影响  

Effects of carbon ion beams irradiation on the quality characteristics and physic-chemical quality of perilla-oil

作　　者：武振华[1,2,3,4] 王新宇[4] 薛林贵[5] 谭勇[6] 牛炳韬[4] 赵旭[5] 徐俊泉[5] 张红[1,2,3] 王振华[1,2,3] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院重离子束辐射生物医学重点实验室,兰州730000 [3]甘肃省重离子束辐射医学应用基础重点实验室,兰州730000 [4]兰州大学生命科学学院细胞生物学研究所,兰州730000 [5]兰州交通大学化学与生物工程学院,兰州730000 [6]石河子大学药学院,石河子832002

出　　处：《辐射研究与辐射工艺学报》2013年第3期19-24,共6页Journal of Radiation Research and Radiation Processing

基　　金：国家重点基础研究发展计划项目(973计划;2010CB834202);国家自然科学基金重点项目(10835011);国家自然科学基金项目(11175222);甘肃省自然科学基金(0803RJZA074);中国科学院院地合作项目(Y160040YDO)资助

摘　　要：利用兰州重离子研究装置(HIRFL)提供的12C6+离子束辐照紫苏干种子,吸收剂量分别为40 Gy、80 Gy和120 Gy,剂量率约4 Gy/min,探讨重离子束辐照对紫苏M1代紫苏油品质和理化性质的影响。结果表明:随着碳离子束吸收剂量的升高,和正常对照组相比,紫苏油粗蛋白含量降低,总糖含量升高;紫苏油中碘值降低,皂化值升高,但过氧化值、酸值和色泽变化不大;紫苏油脂肪酸组成中油酸含量逐渐升高,亚麻酸、月桂酸、棕榈酸和硬脂酸含量都逐渐降低,但亚油酸含量变化不大。提示:碳离子束辐照后,M1代紫苏的紫苏油主要理化指标变化不大,但不饱和程度有所升高,有利于紫苏油品质的改善。The dry seeds ofperillafrutescens（L.） were irradiated with ^12C6＋ ion beams with a dose of 0, 40, 80, and 120 Gy, respectively, at a dose rate of 4 Gy/min generated from the Heavy Ion Research Facility in Lanzhou （HIRFL）. The results showed that M1 generation quality characteristics of perilla seeds had some changes after irradiation with ^12C6＋ ion beams, such as crude protein yields decreasing while total sugar content increased. The iodine value decreased while the saponification value increased, but the acid value, peroxide value and colour of perilla-oil had little change. Furthermore, these findings suggested that carbon ion beam irradiation increased the contents of oleic acid, and decreased the contents of palmitic acid, lauric acid, stearic acid and linolenic acid, but hardly affected the contents of linoleic acid. All these data suggest that ^12C6＋ ion beam irradiation could increase the ＂degrees of unsaturation＂ of perilla-oil to improve its quality, although it had little effect on the physic-chemical quality of first generation perilla-oil.

关 键 词：紫苏油 碳离子束 品质 辐照 

分 类 号：TL99[核科学技术—核技术及应用]