摘要
目的探讨电子束和γ射线等2种射线对油料脂肪氧化及霉菌含量的影响。方法以花生、芝麻、大豆为原料,采用1,3,5,7,9 kGy的辐照剂量对样品进行辐照处理,分析不同射线和不同剂量处理对原料含油率、酸价、过氧化值和霉菌总数的影响。结果辐照对油料含油率基本无影响;2种射线辐照均能有效地降低花生、芝麻和大豆的酸价,而且变化规律相似,在电子束辐照剂量为5 kGy下花生、芝麻和大豆的酸价最低,分别降低了54.29%,37.50%,37.33%。γ射线辐照对花生和芝麻的酸价的下降幅度大于电子束辐照,而大豆的情况则相反;2种射线辐照对花生过氧化值的影响不大,但γ射线辐照的过氧化值整体上略低于电子束辐照;2种射线辐照在一定程度上增加了芝麻的过氧化值;大豆的过氧化值随着2种射线辐照剂量的增加而降低,在1～5 kGy剂量下,γ射线辐照降低大豆的过氧化值的幅度整体低于电子束辐照。辐照能有效地杀灭油料中的霉菌,且辐照剂量越大其杀菌效果越好。相比而言,γ射线辐照对油料的霉菌杀灭效果好于电子束辐照。结论 2种射线在3 kGy辐照剂量下对油料质量无显著的负面影响,可作为油料防虫和防霉的适宜剂量。
The work aims to investigate the effects of electron beam andγ-ray on the fat oxidation and mold content of oil plants.Peanut,sesame and soybean were irradiated with 1,3,5,7,9 kGy irradiation dose.The effects of different rays and different irradiation dose on oil content,acid value,peroxide value and total mold number were analyzed.Irradiation basically had no effect on the oil content of oil plants.Two kinds of irradiation could effectively reduce the acid value of peanut,sesame and soybean,and the change law was similar.The acid value of peanut,sesame and soybean was the lowest at 5 kGy electron beam irradiation dose,which was reduced by 54.29%,37.50%and 37.33%,respectively.The decrease of acid value of peanut and sesame irradiated byγray was greater than that by electron beam irradiation,but that of soybean was the opposite.The two kinds of radiation had little effect on the peroxide value of peanut,but the peroxide value ofγ-ray irradiation was slightly lower than that of electron beam irradiation.The two kinds of ray irradiation increased the peroxide value of sesame to some extent.With the increase of the dose of the two kinds of radiation,the peroxide value of soybean decreased.At the dose of 1~5 kGy,the reduction of peroxide value of soybean irradiated byγrays was lower than that irradiated by electron beam.Irradiation could effectively kill the mold in the oil plants;moreover,the larger the irradiation dose,the better the bactericidal effect.In contrast,theγ-ray irradiation had better killing effect on the mold of oil plants than the electron beam irradiation.The irradiation dosage of 3 kGy of the two kinds of rays has no significantly negative impact on the quality of the oil plants,and can be used as a suitable dose for pest control and mold prevention of oil plants.
作者
王娴
崔龙
董威杰
许勃
吕晓华
杨世清
陈云堂
WANG Xian;CUI Long;DONG Wei-jie;XU Bo;LYU Xiao-hua;YANG Shi-qing;CHEN Yun-tang(Institute of Isotope Research,Henan Academy of Sciences,Zhengzhou 450015,China;Key Laboratory of Nuclear Agriculture of Henan,Zhengzhou 450015,China;Research Center of Irradiation Processing and Engineering of Henan,Zhengzhou 450015,China;Academician Workstation of Nuclear Technology Application in Agriculture of Henan,Zhengzhou 450015,China)
出处
《包装工程》
CAS
北大核心
2019年第3期30-37,共8页
Packaging Engineering
基金
河南省重点科技攻关项目(182102110386)
河南省食品辐照保鲜与加工创新型科技团队项目(豫科人事(2009)2号)
河南省科技开放合作计划(182106000046)
河南省"食品辐照保鲜与加工"优秀创新型科技团队项目(18YX04001)
关键词
电子束
Γ射线
油料
脂肪氧化
electron beam
gamma ray
oil plants
fat oxidation
