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Effect of CaCl2 on 2 heat-induced whey protein concentrate fibrillation pathways: Spontaneous and nuclear induction.
Yang, Xiaotong; Xie, Mingming; Guan, Chen; Guo, Ruichi; Ma, Caihong; Xu, Honghua; Shao, Meili.
Afiliación
  • Yang X; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Xie M; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Guan C; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Yingchen; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Guo R; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Ma C; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China.
  • Xu H; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China. Electronic address: xhh3161@126.com.
  • Shao M; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, People's Republic of China. Electronic address: shml0915@163.com.
J Dairy Sci ; 105(7): 5573-5586, 2022 Jul.
Article en En | MEDLINE | ID: mdl-35570036
Amyloid fibrils have many excellent functional properties that facilitate their applications in the food industry. There are 2 pathways for whey protein concentrate (WPC) to form amyloid fibril aggregates: spontaneous pathway and nuclear induction pathway. Low ionic strength is a necessary condition for the spontaneous pathway to proceed successfully. In this paper, the effect of salt ions on 2 WPC fibrillation pathways was investigated by adding CaCl2. The results demonstrated WPC fibrils were unable to form normally through spontaneous pathway as adding CaCl2; but still could form through nuclear induction pathway with 20 to 30 mM CaCl2, the nuclei accelerated the fibrillation process led to the resistance to the disordered aggregation brought by CaCl2. Moreover, divalent cations (Ca2+, Mg2+) had much stronger effects than monovalent cations (Na+) on fibril formation, and the results of X-ray photoelectron spectrum together with Fourier-transform infrared spectroscopy suggested that Ca2+ had a greater effect on the fibril formation than Cl-.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Calor / Amiloide Límite: Animals Idioma: En Revista: J Dairy Sci Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Calor / Amiloide Límite: Animals Idioma: En Revista: J Dairy Sci Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos