稻穀的貯藏 daogusuiranshiyichangqizhuzang,danyidanzaiqianglieriguangxiabaoshaihuozaijiaogaowenduxiahonggan,jiuhuijiangdishiyongjiazhi。xinshoudaogushenglihuoxingqiang,rucanghouyichanshengzire,shiliangshiwendushangsheng,daozhishangcengjielufamei。yinianchuntianqiwenshangsheng,yinshuifenzengduo,yiyinqimeilan。daogudehuxizuoyongyibanzaizhuzangdedi1~2年較高,以後逐漸降低趨於平穩。因此,稻穀在入倉庫貯藏時,要控製水分含量在14%左右,溫度在25℃以下。
大米的貯藏 失去穀殼保護層的大米營養物質直接曝露於外,受外界溫度、濕shi度du和he氧yang氣qi的de影ying響xiang較jiao大da,吸xi濕shi性xing強qiang,帶dai菌jun量liang多duo,易yi遭zao受shou害hai蟲chong和he黴mei菌jun的de危wei害hai,從cong而er加jia速su營ying養yang物wu質zhi的de代dai謝xie損sun耗hao。糠kang粉fen中zhong所suo含han的de脂zhi肪fang易yi氧yang化hua分fen解jie形xing成cheng脂zhi肪fang酸suan,引yin起qi大da米mi酸suan度du增zeng加jia。在zai以yi上shang兩liang種zhong因yin素su的de影ying響xiang下xia,大da米mi的de陳chen化hua和he黴mei變bian速su度du會hui加jia快kuai。因yin此ci,大da米mi宜yi低di溫wen貯zhu藏zang,不bu宜yi直zhi接jie吹chui風feng或huo驟zhou然ran降jiang溫wen,也ye不bu宜yi高gao溫wen烘hong幹gan或huo陽yang光guang直zhi接jie暴bao曬shai,而er隻zhi可ke緩huan慢man降jiang溫wen,在zai低di溫wen環huan境jing中zhong緩huan慢man除chu濕shi、幹燥。具體實施應注意以下幾點:
1.嚴格控製大米含水量。其安全水分含量可根據氣溫做適當調整。夏秋季節氣溫不超過35℃時,含水量控製在13%以下;春季氣溫不超過20攝氏度時,含水量控製在14%以下;冬季氣溫在10℃以下時,含水量可放寬到15%~16%。
2.qingchukangfen,fangchongfangmei。damizhuzangqijianyaoqinjianzha,faxianyoufaremeibiandeyuzhao,yingjishitanliang。yingzhuyiqingchukangfen,duikangfenduoderukudamiyingzhongxinqingchu,yitigaodamizhuzangdewendingxing。
3.自然低溫保管。為使大米安全越夏,可利用冬季和初春的自然低溫,對大米進行降溫降濕,入夏之前密閉倉庫,以減輕高溫、高濕對大米的影響。(江蘇省濱海縣三中北港科技協會 張華東)
手機版




