Study on Quality Changes of Ratooning Rice under Low Temperature Storage Conditions
In order to investigate the quality changes of ratooning rice under low temperature storage conditions,the second crop of ratooning rice,Chang Liangyou No.8,and high quality rice,Huang Huazhan,were used as ex-perimental raw materials,and stored under low temperature conditions for 300 days.The changes in moisture content,roughness,polished rice rate,fatty acid value,germination rate,and landing value of ratooning rice were monitored and analysed during the storage period.The results showed that:the quality of ratooning rice was in the range of suitable storage within 300 days of low-temperature storage.The moisture content of ratooning rice was in the safe moisture during the storage period and the changes were relatively constant.The husked rice yield,head rice yield and germination rate showed a decreasing trend,which was consistent with the trend of high-quality rice grains.The fatty acid value and falling number showed an increasing trend.Compared with high-quality rice,the head rice yield of ratooning rice was obviously lower,the fatty acid value rose relatively faster,and the falling number relatively slower.
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