Structural, physicochemical, and immune-enhancing properties of edible insect protein isolates from Protaetia brevitarsis larvae

Autor: Jae Hoon Lee, Tae-Kyung Kim, Yun Jeong Kim, Min-Cheol Kang, Kyung-Mo Song, Bum-Keun Kim, Yun-Sang Choi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Food Chemistry: X, Vol 18, Iss , Pp 100722- (2023)
Druh dokumentu: article
ISSN: 2590-1575
DOI: 10.1016/j.fochx.2023.100722
Popis: Edible insects are promising future food resources globally. Herein, the structural, physicochemical, and bio-functional properties of edible insect protein isolates (EPIs) extracted from Protaetia brevitarsis larvae were investigated. The results showed that EPIs have a high total essential amino acid content; moreover, β-sheet is the major secondary protein structure. The EPI protein solution was highly soluble and electrically stable and did not aggregate easily. In addition, EPIs exhibited immune-enhancing properties; EPI treatment of macrophages induced the activation of macrophages and consequently promoted the production of pro-inflammatory mediators (NO, TNF-α, and IL-1β). Moreover, macrophage activation of EPIs was confirmed to occur through the MAPK and NF-κB pathways. In conclusion, our results suggest that the isolated P. brevitarsis protein can be fully utilized as a functional food material and alternative protein source in the future food industry.
Databáze: Directory of Open Access Journals