电子束辐照防治不同品系米象成虫及对大米蒸煮品质的影响  

EFFECTS OF ELECTRONIC BEAM IRRADIATION ON PHOSPHINE RESISTANT AND SUSCEPTIBLE OF SITOPHILUS ORYZAE LINNAEUS AND COOKING QUALITY OF RICE

作　　者：郭东权[1] 范家霖[1] 张建伟[1] 杨保安[1] 鲁玉杰[2] 王争艳[2] 李湘[1,3] 商飞飞[1,4] 许勃[1] 董威杰[1] 崔龙[1] 陈云堂[1] 

机构地区：[1]河南省科学院同位素研究所有限责任公司/河南省科学院核农学重点实验室/河南省辐照加工工程技术研究中心,450015 [2]河南工业大学粮油食品学院,450001 [3]湖北民族学院,445000 [4]贺州学院,542800

出　　处：《粮食储藏》2014年第6期1-6,共6页Grain Storage

基　　金：国家公益性行业(农业)科研专项(201103007);河南省创新型科技人才队伍建设工程项目[(豫科人事(2009)2号)];郑州市农产品质量安全辐照控制科技创新团队(141PCXTD511);河南省重点科技攻关计划项目(122102110056;132102110153)

摘　　要：针对储粮害虫的磷化氢抗性问题,采用电子加速器对磷化氢抗性品系和敏感品系米象成虫及大米进行辐照处理,研究了0~1000Gy的电子束辐照对两品系米象的致死效应,分析了二者对辐照的敏感性,并研究了0~5000Gy剂量辐照下大米的蒸煮品质。结果表明,电子束处理对两品系米象的致死规律大致相同,二者对电子束的敏感性存在差异,但差异不显著。电子束辐照对大米的蒸煮品质影响显著,随辐照剂量的升高,大米的胶稠度升高,吸水率、膨胀率和感官评分降低,5000Gy时蒸煮米饭出现明显的褐变。因此,100Gy^3000Gy的剂量可以作为电子束辐照防治不同品系米象的适宜剂量。In view of phosphine resistance problem of the insects in stored grain , the irradiation biological effects of 0~1000 Gy electronic beam on phosphine resistant and susceptible of Sitophilus oryz ae Linnaeus were studied , the irradiation susceptibilities of the two strains were compared , and the irradiation effects of 0~5000 Gy electronic beam on the cooking quality of rice were studied . The results showed that the lethal rules of tw o strains w ere similar . T he irradiation susceptibilities of strains w ere different , but the differ‐ence between the two strains was not significant . The cooking quality was changed significantely by irradi‐ation . With the dose increasing , gel consistency raised while water absorption , swelling degree and the sensory score of cooking quality reduced . The cooked rice browned at 5000 Gy dose level . Thus , 100~3000 Gy irradiation could be considered as a suitable dose for control on the development of Sitophilus oryz ae Linnaeus in stored rice .

关 键 词：电子束 辐照 米象 敏感性 大米 蒸煮品质 

分 类 号：S379.5[农业科学—农产品加工]