食品科学 ›› 0, Vol. ›› Issue (): 0-0.

• 食品工程 •    下一篇

双螺杆挤压技术对玉米重组米理化特性及品质特性的影响

谢天1,孙洪蕊2,康立宁3,李凤林4,田志刚1,刘香英1   

  1. 1. 吉林省农业科学院农产品加工研究所
    2. 东北农业大学
    3. 吉林省农业科学院
    4. 吉林农业科技学院
  • 收稿日期:2018-07-14 修回日期:2019-04-16 出版日期:2019-09-15 发布日期:2019-09-23
  • 通讯作者: 康立宁 E-mail:lnkang@sina.com
  • 基金资助:
    吉林省农业科技创新工程创新团队项目;吉林省农业科技创新工程人才基金项目

Effect of twin-screw extrusion technology on physical and chemical properties and quality characteristics of corn extruded rice

Tian XIE 2,NING LIKANGLin FengLI3,GANG ZHITIAN4,YING XIANGLIU2   

  • Received:2018-07-14 Revised:2019-04-16 Online:2019-09-15 Published:2019-09-23
  • Contact: NING LIKANG E-mail:lnkang@sina.com

摘要: 摘 要:本研究采用双螺杆挤压技术,对吉林省17个品种玉米进行挤压膨化,形成重组米,采用IBM SPSS Statistics 23、Origin等软件对双螺杆挤压处理前后重组米理化特性及品质特性进行分析。研究结果表明,双螺杆挤压对玉米粉理化特性及品质特性有非常显著的影响。挤压处理后不同品种玉米粉的蛋白质含量降低11.31%,脂肪含量降低28.94%,直链淀粉含量降低5.1%,冻融稳定性提高 58.90%,糊化度提高88.62%,吸水性提高77.03%,水溶性提高73.57%,膨润力提高87.51%。相关性分析数据表明,经过双螺杆挤压处理糊化度与脂肪、直链淀粉呈极显著负相关,与蛋白质呈显著负相关,与吸水性和水溶性呈极显著正相关;直链淀粉与冻融稳定性、糊化度、吸水性及水溶性都呈极显著负相关;脂肪同样与冻融稳定性、糊化度、吸水性及水溶性都呈显著负相关。对玉米的理化特性指标有负面影响,但显著提高产品加工性能和食用特性。研究结果为玉米重组米的工业化生产提供理论依据。

关键词: 关键词:双螺杆, 挤压技术, 重组米, 理化影响, 品质影响

Abstract: Abstract: In this study, a twin-screw extruder was used to extrude 17 varieties of corn in Jilin Province to take restructuring rice. The impact of quality were analyzed by using IBM SPSS Statistics 23,Origin and other software.The results indicated that the numerical values of protein, fat, amylose, freeze-thaw stability and chromatic aberration in difference corn flour were reduced after extrusion,and the degree of gelatinization, water absorption index (WAI),water solubility index(WSI),and swelling property were significantly improved. The correlation analysis showed that the degree of gelatinization was negatively correlated with fat, amylose and protein, and had significant positive correlation with freeze thawing stability, WAI and WSI, amylose and fat were significantly negatively correlated with freeze thawing stability, gelatinization degree, WAI and WSI. Extrusion treatment has little loss on physical and chemical components of corn, but has great improvement on the processing performance and eating quality of corn. This paper proves that the extruded rice is consistent with the demand of contemporary people in terms of processability, composition and taste. The results provide a theoretical basis for screening maize varieties for extruded rice and industrial production of extruded maize reconstituted rice.

Key words: Key words: twin-screw, extrusion technology, extrusion rice, impact of physicochemical, impact of quality

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