挤压工艺对保鲜方便米饭品质的影响
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Effects of Extrusion Process on the Quality of Fresh Instant Rice
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    摘要:

    以双螺杆挤压机加工保鲜方便米饭,研究了进料糊化度、进料水分含量、进料粒度、螺杆转速对方便米饭品质的影响。通过分析感官评定与质构参数的相关性,确定以硬度和咀嚼性为指标评价挤压保鲜方便米饭的挤压工艺。采用单因素试验和正交试验,优化了挤压工艺条件:进料粒度0.425 mm,进料糊化度50%,进料水分质量分数25%,挤压机螺杆转速90 r/min。在此条件下制备的方便米饭硬度为113.56 g,咀嚼性为63.81。米饭颗粒饱满,色泽晶莹,咀嚼性适中,口感好。

    Abstract:

    The fresh instant rice using a twin-screw extruder was processed. The effects of gelatinization degree, moisture, grinding powder size, rotation speed of extruder screw on eating quality of instant rice were investigated. According to the correlation of sensory evaluation and texture parameters, the hardness and the chewiness were used to evaluate the extrusion process of instant rice. The results of the single factor experiment and orthogonal tests showed that the optimal conditions for the extrusion process were as follows: grinding powder size 0.425 mm, gelatinization degree 50%, moisture, 25%, and the rotation speed of extruder screw 90 r/min. The instant rice prepared at these conditions showed the hardness of 113.56 g and the chewiness of 63.81 and the rice shape with good color and mouth feeling.

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曹晶,赵建伟,田耀旗,周星,李志芳,金征宇.挤压工艺对保鲜方便米饭品质的影响[J].食品与生物技术学报,2014,33(4):381-386.

CAO Jing, ZHAO Jianwei, TIAN Yaoqi, ZHOU Xing, LI Zhifang, JIN Zhengyu. Effects of Extrusion Process on the Quality of Fresh Instant Rice[J]. Journal of Food Science and Biotechnology,2014,33(4):381-386.

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  • 在线发布日期: 2014-10-19
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