Metabolic response of yellow mealworm larvae to two alternative rearing substrates

Autor:	Angela Braca, Simona Spada, Maria Leonarda Fadda, Gilberto Mulas, G. Serra, Riccardo Melis, Roberta Sanna, Maria Maddalena Sassu, Roberto Anedda
Rok vydání:	2019
Předmět:	Mealworm Dietary Fiber Endocrinology Diabetes and Metabolism Proton Magnetic Resonance Spectroscopy Clinical Biochemistry 01 natural sciences Biochemistry Feed conversion ratio 03 medical and health sciences Metabolomics Animals Food science Tenebrio 030304 developmental biology Tenebrio molitor chemistry.chemical_classification 0303 health sciences Bran biology Chemistry NMR metabonomics 010401 analytical chemistry Fatty Acids Fatty acid Proximate biology.organism_classification Animal Feed 0104 chemical sciences Metabolic pathway Larva Multivariate Analysis Composition (visual arts) Brewer's spent grains Insect nutrition
Zdroj:	Metabolomics (Boston. Online) 15 (2019). doi:10.1007/s11306-019-1578-2 info:cnr-pdr/source/autori:Melis, Riccardo; Braca, Angela; Sanna, Roberta; Spada, Simona; Mulas, Gilberto; Fadda, Maria Leonarda; Sassu, Maria Maddalena; Serra, Giuseppe; Anedda, Roberto/titolo:Metabolic response of yellow mealworm larvae to two alternative rearing substrates/doi:10.1007%2Fs11306-019-1578-2/rivista:Metabolomics (Boston. Online)/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:15
ISSN:	1573-3890
DOI:	10.1007/s11306-019-1578-2
Popis:	Mass insect rearing is becoming increasingly pursued by food and feed industry due to its high sustainability and low environmental impact. Yellow mealworm larvae (Tenebrio molitor) are conventionally reared on wheat bran (WB), but alternative substrates, such as several by-products of the agri-food industry, have shown good prospects for insect rearing. The objective of this study was to investigate on the metabolic and nutritional response of yellow mealworm larvae to dried brewer’s spent grains (BSG) and WB used as rearing substrates. Proximate, fibre and fatty acid compositions of durum WB and dried BSG were first characterized. Mealworm larvae were fed either WB (WB-L) or BSG (BSG-L) in a trial reproducing a scale rearing condition. Feed efficiency parameters together with proximate and FA composition were determined. Metabolic pathways affected by the dietary treatments were evaluated by means of a targeted metabolomics approach. Proton nuclear magnetic resonance (1H NMR) spectra were acquired on lipid and polar extracts of WB-L and BSG-L and then coupled to multivariate data analysis. Absolute quantitative 1H NMR data were carried out on selected metabolites. BSG-L exhibited better feed conversion ratio and efficiency in conversion of ingested food (P
Databáze:	OpenAIRE
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