ArticleMolecules (Basel, Switzerland)2026
Impact of Pre-Treatment Strategies on Enzymatic Hydrolysis of Alternative Protein Sources: Case Study for Black Soldier Fly Larvae.
Article in Molecules (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The rising global demand for protein-rich food has intensified interest in alternative and sustainable protein sources. Insects, particularly black soldier fly (BSF) larvae, represent promising substrates due to their high nutritional content and potential for valorization into functional ingredients. This study investigated the impact of pre-hydrolysis treatments on the efficiency of enzymatic hydrolysis using alcalase to enhance protein solubilization and bioactive peptide production. Pre-treatments included organic acids (propionic and acetic acid) and a pressure-thermal method. Results indicated that BSF larvae responded differently to the evaluated pre-treatment strategies. Notably, the pressure-thermal treatment combined with enzymatic hydrolysis increased soluble protein content by approximately 30% and antioxidant activity by approximately 20%, suggesting enhanced release of bioactive peptides. Although organic acid treatments increased protein solubility, they did not improve the degree of hydrolysis or antioxidant activity. These findings highlight the potential of pressure-thermal pre-treatment to improve the efficiency of protein extraction from insect biomass and support the integration of such approaches into food bioprocessing strategies aimed at developing novel, high-value protein ingredients.
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