Evaluating an emerging technology-based biorefinery for edible house crickets

Frontiers in Nutrition

Nutrition

Shikha Ojha¹  Marios Psarianos¹  Oliver K. Schlüter² 

[1] Horticultural Engineering, Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Potsdam, Germany;Horticultural Engineering, Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Potsdam, Germany;Department of Agricultural and Food Sciences, University of Bologna, Cesena, Italy;

关键词: resilient food processing;    ultrasound;    high pressure;    deep eutectic solvent;    extraction;    fractionation;   

DOI  :  10.3389/fnut.2023.1185612

 received in 2023-03-13, accepted in 2023-06-12,  发布年份 2023

来源: Frontiers

【 摘 要 】

IntroductionEdible insects, specifically house crickets, are expected to play an important role in the future food systems due to their rich nutritional profile, low environmental impact and growing consumer acceptance as food. Their content of proteins, lipids, chitin and phenolics offer great potential for the valorization of their biomass into nutritional end products and fractions. Furthermore, emerging food processing technologies and green solvents are relevant for improving the valorization process.Materials and methodsHigh pressure (HP) and ultrasound (US) processing were implemented in an insect biorefinery system, where a hexane/methanol/water solvent was used to separate fat, phenolics and a solid fraction containing proteins and chitin. Subsequently, a deep eutectic solvent of betaine and urea (B/U) was used to for protein and chitin isolation.ResultsA maximum of 15% of fat was isolated, with no positive effect from the US or HP treatments. The US treatment enhanced the phenolic extraction yield by 38.69%, while HP negatively affected the antioxidant capacity. B/U was efficient in separating proteins and chitin, resulting in a protein concentrate with a protein content ≥80% and a chitinous fraction with a chitin content ≥70%.ConclusionHouse cricket biomass can be refined into valuable fractions with a quick and simple method, making the process industrially relevant.

【 授权许可】

Unknown   
Copyright © 2023 Psarianos, Ojha and Schlüter.