食品科学 ›› 2019, Vol. 40 ›› Issue (9): 91-98.doi: 10.7506/spkx1002-6630-20180402-016

• 食品工程 • 上一篇    下一篇

高压均质协同高酰基结冷胶对青椒蛋蔬液流变特性及稳定性的影响

迟玉杰1,张好凯1,迟 媛2,*,王俊彤1   

  1. 1.东北农业大学食品学院,黑龙江 哈尔滨 150030;2.东北农业大学工程学院,黑龙江 哈尔滨 150030
  • 出版日期:2019-05-15 发布日期:2019-05-28
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2018YFD0400304);现代农业产业技术体系建设专项(CARS-40-K25)

Effect of High Pressure Homogenization Cooperated with High Acyl Gellan Gum on Stability and Rheological Properties of Liquid Egg with Green Pepper Juice

CHI Yujie1, ZHANG Haokai1, CHI Yuan2,*, WANG Juntong1   

  1. 1. School of Food Science, Northeast Agricultural University, Harbin 150030, China; 2. School of Engineering, Northeast Agricultural University, Harbin 150030, China
  • Online:2019-05-15 Published:2019-05-28

摘要: 研究高压均质(high pressure homogenization,HPH)协同高酰基结冷胶(high acyl gellan gum,HA)处理对青椒蛋蔬液(liquid egg with green pepper juice,LEGP)稳定系数、持水力、流变特性、粒径及电位的影响,进而探讨HPH协同HA对LEGP流变特性及稳定性的影响。结果表明:HPH处理可以明显提高LEGP的稳定系数、持水力、屈服应力、表观黏度和ζ-电位绝对值,并减小体系粒径,说明HPH处理可以有效提高LEGP体系稳定性。与HPH相比,HPH协同HA处理可以进一步提高LEGP的稳定系数、持水力、屈服应力、表观黏度和ζ-电位绝对值,使体系粒径进一步减小且分布更均匀,表明HPH协同HA处理可以更好地提高LEGP体系稳定性;其中,均质压力为150 MPa时,LEGP的稳定系数和持水力达到最大。流变实验结果表明HPH处理或HPH协同HA处理样品的流变模型均符合Herschel-Buckley模型,且其流体为带屈服值的假塑性流体,其中,HPH协同HA处理均质压力为150 MPa时,LEGP的屈服应力、表观黏度和弹性模量最高,流体的假塑性最强,体系粒径最小,ζ-电位绝对值最大,LEGP表现出最高的稳定性。

关键词: 高压均质, 高酰基结冷胶, 青椒蛋蔬液, 流变特性, 稳定性

Abstract: In the present study, the effect of high pressure homogenization (HPH) treatment cooperated with high acyl gellan gum (HA) on the stability coefficient, water-holding capacity (WHC), rheological behavior, particle size distribution and ζ-potential of liquid egg with green pepper juice (LEGP) was investigated. We further explored the effect on the rheological properties and stability of LEGP. The results showed that HPH could increase the stability coefficient, WHC, yield strength, apparent viscosity and ζ-potential and decrease the particle size, indicating the potential of HPH to effectively enhance the stability of LEGP. Meanwhile, HPH had a good synergistic effect with HA in markedly improving the stability of LEGP, as indicated by the observation that this combination increased the stability coefficient, WHC, yield stress, apparent viscosity and ζ-potential and led to smaller particle size and more homogeneous size distribution compared with HPH alone. Notably, upon homogenization at 150 MPa, LEGP with HA had the maximum stability coefficient and WHC. Rheological behavior of HPH treated LEGPs with and without could be described using the Herschel-Buckley model and both samples were pseudoplastic fluids with a yield value. LEGP with HA had the maximum yield stress index, apparent viscosity, elastic modulus, pseudoplasticity and ζ-potential and the minimum particle size, and thus had the highest stability upon homogenization at 150 MPa.

Key words: high pressure homogenization, high acyl gellan gum, liquid egg with green pepper juice, rheological properties, stability

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