电子加速器辐照大米防霉技术研究  

Experiment of Controlling Mould by Electron-acc elerator Irradiation Treatment for Rice Storage

作　　者：呼玉山[1,2,3] 陈双兴 王经权 张法楷[1,2,3] 吴天荣[1,2,3] 唐为民 

机构地区：[1]国内贸易部成都粮科所 [2]深圳市粮食总公司 [3]核工业部西南物理研究院

出　　处：《中国粮油学报》1999年第1期55-58,共4页Journal of the Chinese Cereals and Oils Association

基　　金：一九九六年国内贸易部科技发展项目

摘　　要：为开辟大米防霉保鲜新途径，提高大米储藏技术水平，进行了电子加速器辐照大米防霉室内试验。将水分为１４．５％和１５．９８％的大米样品分别装入塑料袋内，密封后置于电子加速器下处理，辐照剂量分别为２．４×１０５ｒａｄ（样品传动速度为７．０ｍ／ｍｉｎ）、３．５×１０５ｒａｄ（样品传动速度为４．８ｍ／ｍｉｎ）和５．０×１０５ｒａｄ（样品传动速度为３．４ｍ／ｍｉｎ）。将辐照后及对照大米样品置于３０℃温度下储藏，并不定期取样进行微生物带菌量、菌相以及大米主要品质指标的检测。试验结果表明：水分为１４．５０％的大米在３０℃温度条件下安全储藏一年时间，采用能量Ｅ＝１．８Ｍｅｒ、剂量为２．４×１０５ｒａｄ的辐照处理为宜，且对大米品质影响不大。辐照剂量超过５．０×１０５ｒａｄ，防霉效果虽得到提高，但大米褐变程度会加重。A laboratorial experiment of controlling mould by electron-accelerator irradiation for rice storage has been carried out.Rice samples with moisture contents of 14.5% and 15.98% respectively were enclosed in plastic pouches.Irradiation treatments were done with the following doses:2.4×10 5 rad (sample moving speed 7.0m/min);and 3.5×10 5 rad (sample moving speed 3.4m/min).The irradiated samples were stored at 30℃.During storage the samples were unperiodically detected for total amount of microspore,mycroflora and rice quality.The experimental results showed that an irradiation with E=1.8Mer and dose of 2.4×10 5 rad kept the stored rice from mould for 1 year,and that an irradiation with dose of over 5.0×10 5 rad promoted rice browning.

关 键 词：电子加速器 辐照 大米 防霉技术 储藏 保鲜 

分 类 号：TS205.9[轻工技术与工程—食品科学] TS212[轻工技术与工程—食品科学与工程]