稻穀 daogusuiranshiyichangqizhuzang,yidanzaiqianglieriguangxiabaoshaihuozaijiaogaowenduxiahonggan,jiuhuijiangdishiyongjiazhi。xinshoudaogushenglihuoxingqiang,rucanghouyifashengzire,shiliangwenshangsheng,daozhiliangwenshangcengjielushengmei。lainianchuntianqiwenshangsheng,yinshuifenzengda,yishengyameilan,suchengyalan。daogudehuxizuoyongyibanzaizhuzangdedi1—2年較高,以後逐漸降低並趨於平穩。因此,稻穀在倉貯入庫時要控製好水分和溫度,水分在14%左右,溫度在25℃以下。
大米 大米一旦失去皮殼保護層後,營養物質直接暴露於外,對外界溫度、濕shi度du和he氧yang氣qi的de影ying響xiang就jiu比bi較jiao敏min感gan,吸xi濕shi性xing強qiang,帶dai菌jun量liang多duo,害hai蟲chong和he黴mei菌jun易yi於yu直zhi接jie危wei害hai,並bing易yi導dao致zhi營ying養yang物wu質zhi加jia速su代dai謝xie。糖tang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,使shi大da米mi酸suan度du增zeng大da。由you於yu以yi上shang不bu良liang因yin素su的de存cun在zai,使shi得de大da米mi陳chen化hua和he黴mei變bian速su度du較jiao為wei突tu出chu。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,隻zhi可ke緩huan慢man降jiang溫wen,並bing在zai低di溫wen環huan境jing中zhong緩huan慢man降jiang水shui、幹燥,不宜高溫烘幹或陽光直接暴曬。
貯藏中須注意以下幾點:
1、嚴格控製水分 大米貯藏的安全水分為13%以下。其安全水分還可根據氣溫作適當調整,夏秋季節氣溫不超過35℃時為13%以下,春季氣溫不超過20℃時為14%以下,冬季氣溫在10℃以下可放寬到15—16%。
2、清除糠粉,防蟲防黴 damizhuzangzhongyaoqinjianzha。faxianyoufaremeibiandexianzhao,yingjishitanliang。chuomishiyingqingchukangfen,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。
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