The paper studied the storage environment and the quality of brown rice by adopting natural ventilation in low-temperature seasons and taking thermal insulation and airtight measures in high-temperature seasons based on the natural conditions of the high attitude and low temperature area. The results showed that the brown rice could be stored safely for 3 years when in-silo low-temperature environment was well controlled. After the 3-year storage, the increase amount of fatty acid value was 13.7 mg/100g,the annual average increase amount was 4.6 mg/100g, and the change range substantially met the set requirement (the change range equal to or smaller than 5 mg/100g every year, and the fatty acid value equal to or smaller than 37 mg/100 g), which met the requirement of moderate storage quality of hsien rice (≤37 mg/100 g). The germination rate of brown rice was slightly smaller than that of rice, but had little difference. Compared to rice stored for the same time period, the brown rice stored for 3 years had no significant change of the taste quality. The moisture content of the brown rice did not decrease but rose to reach the expected target.%利用低温高海拔地区的自然条件,采取低温季节自然通风和高温季节保温密闭措施,对糙米储藏环境及其品质进行了研究.结果表明:仓内低温环境控制良好,可以实现糙米安全储藏3 a.糙米储藏3 a后,脂肪酸值增量为13.7 mg/100 g,年平均增量为4.6 mg/100 g,变化幅度基本满足设定的变化要求(变化幅度≤5 mg/100 g·年,脂肪酸值≤37 mg/100 g),符合籼稻储存品质轻度不宜存(≤37 mg/100 g)的要求.糙米发芽率略低于稻谷,但差别不大.糙米储藏3 a与同期储藏的稻谷相比,食味品质变化不大；糙米水分未降低,反而有所升高,达到了预期的目标.
展开▼
