Nowadays, the mass production of insects is promoted not only for their nutritional value, but also for their ability to convert agri-food by-products into high valuable derived products. In the present work, the potential production of carotenoid-rich larvae of black soldier fly, Hermetia illucens (BSFL), was evaluated by rearing them on different agri-food by-products. The carotenoid concentration in BSFL was highly correlated with the carotenoid content of the substrates (R=0.882). Among the different substrates, tomato and carrot by-products allowed to obtain BSFL with a total carotenoid content 230% higher than the amount detected in the BSFL grown in the control diet. Furthermore, the killing method played a key role in the preservation of the BSFL carotenoid content, with dry heating resulting in a significantly higher total carotenoid content compared to blanching and freezing. These results clearly support the valorisation of agri-food by-products for the production of BSFL naturally rich in carotenoids for specific feed and food purposes.
Production of carotenoid-rich Hermetia illucens larvae using specific agri-food by-products / Leni, G; Maistrello, L; Pinotti, G; Sforza, S; Caligiani, A. - In: JOURNAL OF INSECTS AS FOOD AND FEED. - ISSN 2352-4588. - 9:2(2023), pp. 171-181. [10.3920/JIFF2022.0016]
Production of carotenoid-rich Hermetia illucens larvae using specific agri-food by-products
Maistrello, L;Pinotti, G;
2023
Abstract
Nowadays, the mass production of insects is promoted not only for their nutritional value, but also for their ability to convert agri-food by-products into high valuable derived products. In the present work, the potential production of carotenoid-rich larvae of black soldier fly, Hermetia illucens (BSFL), was evaluated by rearing them on different agri-food by-products. The carotenoid concentration in BSFL was highly correlated with the carotenoid content of the substrates (R=0.882). Among the different substrates, tomato and carrot by-products allowed to obtain BSFL with a total carotenoid content 230% higher than the amount detected in the BSFL grown in the control diet. Furthermore, the killing method played a key role in the preservation of the BSFL carotenoid content, with dry heating resulting in a significantly higher total carotenoid content compared to blanching and freezing. These results clearly support the valorisation of agri-food by-products for the production of BSFL naturally rich in carotenoids for specific feed and food purposes.File | Dimensione | Formato | |
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