夏吉庆, 郑先哲, 刘成海. 储藏方式对稻米黏度和脂肪酸含量的影响[J]. 农业工程学报, 2008, 24(11): 260-263.
    引用本文: 夏吉庆, 郑先哲, 刘成海. 储藏方式对稻米黏度和脂肪酸含量的影响[J]. 农业工程学报, 2008, 24(11): 260-263.
    Xia Jiqing, Zheng Xianzhe, Liu Chenghai. Effects of storage methods on viscosity and fatty acid content of rice[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2008, 24(11): 260-263.
    Citation: Xia Jiqing, Zheng Xianzhe, Liu Chenghai. Effects of storage methods on viscosity and fatty acid content of rice[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2008, 24(11): 260-263.

    储藏方式对稻米黏度和脂肪酸含量的影响

    Effects of storage methods on viscosity and fatty acid content of rice

    • 摘要: 通过稻米常规储藏和真空储藏的对比试验,研究了稻米黏度特性、外观状况和脂肪酸含量。在中国北方室内(温度为18~25℃,平均相对湿度为65%~75%),试验结果表明,采用真空储藏方式后稻米的最高黏度值和崩解值高于常规储藏方式,而胶凝值低于常规储藏方式,并随着含水率增高,最高黏度也增高,崩解值下降,很好保持了稻米食味。研究发现稻米的含水率越高,储藏期间脂肪酸含量变化率越大,真空储藏可以有效减缓稻米陈化进程,对稻米中脂肪酸含量影响程度的重要性依次为:储藏方式、含水率和储藏时间。真空储藏比常规储藏更易保持稻米的食味品质。

       

      Abstract: Rice quality properties in terms of viscosity, appearance and fatty acids content were studied by a series of contrastive experiments in a storage room with the range of temperature of 18~25℃ and mean relative humidity of 65%~75%, which were representative storage conditions for the rice in Northern China. The results showed that the highest viscosity value and breakdown value was higher, and gelatinization value was lower for rice stored with vacuum method than that with conventional method. The highest viscosity and fatty acids content increased and breakdown value decreased with the increase of initial moisture content of rice for the stored rice. The vacuum storage is an effective method to delay the rice aging process. Therefore, the vacuum stored method is better than that of conventional method to maintain rice taste. Significance orders for the factors to influence fatty acids content are, in turn, stored method, moisture content and stored duration.

       

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