Optimization of Fermentation Process of Wheat Germ Protein by Aspergillus niger and Analysis of Antioxidant Activity of Peptide

Autor: Yingying Liu, Yu Zhou, Chaohong Zhu, Yanglin Meng, Jingjing Wang, Xinyang Chen, Yinchen Hou, Aimei Liao, Long Pan, Jihong Huang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Fermentation, Vol 10, Iss 3, p 121 (2024)
Druh dokumentu: article
ISSN: 2311-5637
DOI: 10.3390/fermentation10030121
Popis: Utilizing wheat embryos as the raw material and employing Aspergillus niger as the fermentation strain, wheat embryo polypeptides were produced through microbial liquid fermentation. The protein concentration post-fermentation served as the response variable, and the preparation process underwent optimization through single-factor testing and a response surface methodology, followed by the assessment of antioxidant activity. The findings revealed that the optimal conditions for wheat embryo peptide preparation via Aspergillus niger fermentation included a fermentation duration of 24 h, an inoculum volume of 4%, an initial pH of 7, and a protein concentration of 21.47 mg/mL. Peptides with different molecular weights were then prepared by dead-end filtration. The results showed that F6 (
Databáze: Directory of Open Access Journals