Effects of Germination Treatment on the Structural and Functional Properties of Quinoa Protein Isolate

被引：0
|
作者：
Cai S. [1 ]
Jin G. [1 ]
Gu R. [1 ]
Wang Y. [1 ]
机构：
[1] College of Food Science and Engineering, Northwest Agriculture and Forestry University, Shaanxi, Yangling
来源：
Journal of Chinese Institute of Food Science and Technology | 2023年 / 23卷 / 05期
关键词：
functional properties; germination; isolate protein; quinoa; structural properties;
D O I：
10.16429/j.1009-7848.2023.05.002
中图分类号：
学科分类号：
摘要：
In order to improve the functional characteristics and utilization rate of quinoa protein, this study treated quinoa with different germination times (0, 12, 24, 48 h), extracted quinoa protein isolate (QPI) using traditional alkali solution and acid precipitation method, and analyzed its structural and functional characteristics. The results showed that compared with the non germinated group, the QPI after germination treatment had a denser structure, significantly reduced pore structure, and a uniform and smooth surface. After 48 hours of germination treatment, the surface hydropho-bicity, emulsification, and emulsification stability of QPI reached their maximum values, which were 6.67, 88.8% and 74.65%, respectively, with the lowest solubility (0.33%). In addition, germination promotes the degradation of the structure of quinoa protein bodies, and the disappearance of high molecular weight protein bands. The denaturation temperature of quinoa protein is reduced to varying degrees, and the stretching vibration of functional groups such as amide II bands is significantly enhanced, which affects the functional characteristics of QPI. These results indicated that germination treatment could significantly affect the structural and functional characteristics of QPI, providing an effective reference for the processing of germinated quinoa, and providing a theoretical basis for the modification and application of plant protein in the future. © 2023 Chinese Institute of Food Science and Technology. All rights reserved.
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页码：11 / 20
页数：9
相关论文
共 35 条
  • [1] HUANG J., Research and development of healthy food based on quinoa nutrition and functional ingre-dients [D], (2017)
  • [2] FANALI C, BECCARIA M, SALIVO S, Et al., Non-polar lipids (characterization of quinoa (Chenopodium quinoa) seed by comprehensive two-dimensional gas chromatography with flame ioniza-tion/mass spectrometry detection and non-aqueous reversed-phase liquid chromatography with atmospheric pressure chemical ionization mass spectrometry detection, Sep Sci, 38, 18, pp. 3151-3160, (2015)
  • [3] RAM R C V, LA S., Quinoa (Chenopodium quinoa, Willd.) as a source of dietary fiber and other functional components, Food Science and Technology (Campinas), 31, 1, pp. 225-230, (2011)
  • [4] SEMRA N, NEVIN S., Nutritional and health benefits of quinoa (Chenopodium quinoa Willd.), Journal of Cereal Science, 69, pp. 371-376, (2016)
  • [5] WANG L F, WANG X W, ZHAO R Y., Research progress in the characteristics, properties, and extraction of quinoa protein, Food Industry, 38, 7, pp. 255-258, (2017)
  • [6] GUAN X, MA Z M, SONG H D, Et al., Research progress on nutrition and functional characteristics of germinated quinoa, Cereals, Oils and Foods Science and Technology, 29, 4, pp. 1-11, (2021)
  • [7] CAO H W, SUN R L, SHI J R, Et al., Effect of ultrasonic on the structure and quality characteristics of quinoa protein oxidation aggregates, Ultrasonics Sonochemistry, 77, (2021)
  • [8] YANG Z, DECAMPO L, PAUL GILBERT E, Et al., Effect of NaCl and CaCl2 concentration on the rheo-logical and structural characteristics of thermally-induced quinoa protein gels, Food Hydrocolloids, 124, pp. 0268-005X, (2021)
  • [9] SU Q Y., The effect of microwave treatment on the functional properties of quinoa protein, Food Engineering, 2, pp. 33-37, (2021)
  • [10] LIAO Y X, DAI H Y, YANG J, Et al., Effects of temperature on seed germination and seedling growth of Longliu No. 1, Journal of Anhui Agricultural Sciences, 48, 19, pp. 30-33, (2020)
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