Comparative study of two types of pre-extraction treatment (drying or non-drying) on physicochemical, structural and functional properties of extracted insect proteins from Tenebrio molitor larvae

Autor: Fengxue Zhang, Yining Xu, Baohua Kong, Qian Chen, Fangda Sun, Hongwei Zhang, Qian Liu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Current Research in Food Science, Vol 5, Iss , Pp 1570-1580 (2022)
Druh dokumentu: article
ISSN: 2665-9271
DOI: 10.1016/j.crfs.2022.09.004
Popis: Microwave drying (MD) or freeze drying (FD) was commonly used as a drying treatment prior to the extraction of edible insect proteins. However, some quality defects (e.g., lipid oxidation or protein denaturation) were probably occurred via the drying step. To this end, the effect of drying or non-drying treatments (ND) after slaughtering by liquid nitrogen freezing on the physicochemical characteristics, structural and functional properties of Tenebrio molitor larvae protein (TMP) was investigated. The results indicate that TMP extracted from the ND group showed higher essential/total amino acid content, total/free sulfhydryl content, surface hydrophobicity, solubility, water/oil holding capacities, and emulsifying/foaming properties than those extracted from the MD or FD groups (P
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