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中国精品科技期刊2020
路乐乐,沈琴,郎双静,等. 加工精度对稻花香品质及方便米饭理化性质的影响[J]. 食品工业科技,2025,46(10):220−227. doi: 10.13386/j.issn1002-0306.2024060295.
引用本文: 路乐乐,沈琴,郎双静,等. 加工精度对稻花香品质及方便米饭理化性质的影响[J]. 食品工业科技,2025,46(10):220−227. doi: 10.13386/j.issn1002-0306.2024060295.
LU Lele, SHEN Qin, LANG Shuangjing, et al. Effect of Degree of Milling on the Quality of Daohuaxiang Rice and Physicochemical Properties of Instant Rice[J]. Science and Technology of Food Industry, 2025, 46(10): 220−227. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024060295.
Citation: LU Lele, SHEN Qin, LANG Shuangjing, et al. Effect of Degree of Milling on the Quality of Daohuaxiang Rice and Physicochemical Properties of Instant Rice[J]. Science and Technology of Food Industry, 2025, 46(10): 220−227. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024060295.

加工精度对稻花香品质及方便米饭理化性质的影响

Effect of Degree of Milling on the Quality of Daohuaxiang Rice and Physicochemical Properties of Instant Rice

  • 摘要: 为改善大米食用品质与营养品质,以稻花香为原料,制备精米(留皮度0.21%)、适碾米Ⅰ(留皮度2.15%)、适碾米Ⅱ(留皮度6.67%)和糙米。对大米加工、营养和食用品质等特性进行比较分析,并对制备的方便米饭复水特性与感官品质进行评价分析。结果表明,适碾米Ⅰ与适碾米Ⅱ的白度差异不显著,而碎米率分别较精米降低了8.91%与19.85%;适碾米Ⅱ的脂肪、蛋白质、维生素B1含量是精米的6.6倍、1.14倍和3.58倍,同时均显著高于适碾米Ⅰ(P<0.05);适碾米Ⅰ、适碾米Ⅱ与精米的蒸煮品质与米饭食味值差异不显著,且要优于糙米。适碾米Ⅰ、适碾米Ⅱ与精米方便米饭的吸水率与硬度在复水8 min后趋于稳定,水分含量介于153%~155%,较糙米提升了92.5%。适碾米Ⅱ方便米饭的气味值比适碾米Ⅰ和精米高,但感官评分均与适碾米Ⅰ差异较小。由此可见,适碾范围内大米的外观品质会随留皮度的增加而降低,部分营养品质则呈现相反的变化规律,而留皮度的变化却对大米的食味品质、蒸煮品质及方便米饭的复水特性与感官评分无显著影响。这意味着留皮度接近7%适碾上限的大米在稻谷利用率和营养健康等方面有较大优势,可以为营养平衡型适碾米及方便米饭等产品的开发提供理论支持。

     

    Abstract: To enhance the edible and nutritional quality of rice, four types of rice were prepared using Daohuaxiang rice as the raw material: white rice (0.21% bran degree), reasonably well-milled rice Ⅰ (2.15% bran degree), reasonably well-milled rice Ⅱ (6.67% bran degree), and brown rice. The study analyzed the characteristics of rice processing, nutrition, and edible quality, and evaluated the rehydration properties and sensory quality of instant rice. The results indicated that there was no significant difference in whiteness between rice Ⅰ, which was reasonably well-milled, and rice Ⅱ, also reasonably well-milled. However, the percentages of broken rice decreased by 8.91% and 19.85%, respectively. The contents of fat, protein, and vitamin B1 in well-milled rice Ⅱ were 6.6 times, 1.14 times, and 3.58 times greater than those found in white rice, respectively. Additionally, these levels were significantly higher than those observed in well-milled rice Ⅰ (P<0.05). The cooking quality and taste of rice Ⅰ, rice Ⅱ, and white rice were not significantly different, and all were superior to brown rice. The water absorption and hardness of rice Ⅰ, rice Ⅱ, and white rice stabilized after rehydration for 8 min, with water content ranging from 153% to 155%, which was 92.5% higher than that of brown rice. The aroma of rice Ⅱ was better than that of rice Ⅰ and white rice. However, there was minimal difference in sensory scores between white rice and rice Ⅰ. In conclusion, the appearance quality of rice diminished with an increase in bran degree, while some nutritional qualities exhibited an inverse trend. Nevertheless, the variation in bran degree had no significant effect on eating quality, cooking quality, rehydration characteristics, and sensory scores. Rice with a bran degree close to the upper limit of 7% in reasonably well-milled varieties offers significant advantages in terms of utilization, nutrition, and health. This finding provides theoretical support for the development of nutritionally balanced, reasonably well-milled rice and instant rice products.

     

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