Eco-friendly technologies for obtaining antioxidant compounds and protein hydrolysates from edible insect Tenebrio molitor beetles
Year: 2024
Type: article
Abstract: The functional properties of edible insects can be explored by a joint use of novel technologies. This work applied varied pre-treatments (ultra-sound-assisted extraction, UAE; microwave-assisted extraction, MAE; temperature-assisted extraction, TAE; CO2-assisted extraction) and solvents (water, ethanol, water:ethanol) in Tenebrio molitor beetles to enhance the extraction of phenolic compounds with antioxidant activity. An enzymatic hydrolysis (EH) was performed in wet and treated biomasses to determine the protein hydrolysis. Higher phenolic compounds and antioxidant activity was released after MAE using water as solvent compared to the other treatments and solvents. Treatments decreased 32 %, 19 % and 30 % the protein, chitin and lipids content. EH improved protein and amino acids hydrolysis in the MAE-treated insects, followed by UAE and TAE treatments. In conclusion, MAE was the most effective to release phenolics and antioxidant activity from T. molitor beetles, while using MAE followed by EH improved protein and amino acids hydrolysis, envisioning valuable applications for this insect biomass. • Microwaves efficiently extract phenolic compounds from T. molitor beetles. • Water was the ideal solvent to extract phenolic compounds with antioxidant activity. • Enzymatic hydrolysis did not degrade protein fraction of T. molitor beetles. • Enzymatic hydrolysis improved protein and amino acids release.
Source: Food Chemistry
Institution: Universidade de Vigo
Language: English
Subfield: Insect Science
Domain: Life Sciences
Open Access status: hybrid
Estimated APC paid: $4,620
Awards: G1175115578, G1496055848, G1503555180, G1559769496, G1828232113, G1855990336, G2262748287, G2309174360, G252646220, G2550080368, G2601397997, G2611600015, G300979063, G3480869486, G3681454997, G4042783231, G425668148, G430777504, G4525119967, G464912383, G5080475149, G5421974903, G5531967163, G7013362556, G8245609545, G8798600439, G99296377
OpenAlex ID: W4403561287