Abstract
SummarySolid‐state fermentation (SSF) can improve the availability of nutrients in food products by converting complex molecules into simpler ones with the help of microorganisms. The present research focuses on using the fungi Aspergillus oryzae in SSF to ferment grasshoppers (Sphenarium purpurascens). The fermentation was carried out for 8 days, and kinetic growth, enzyme, and bioactive compound (TPC, ABTS, and DPPH) production were monitored. Second order equation modelled the growth of A. oryzae on a grasshopper substrate. During fermentation, a protein increase of 50% was obtained after day 4. TPC, ABTS, DPPH scavenging activity percentage, β‐glucan, and amylase activity increased 116%, 70%, 10%, 380%, and 629.6% at 8, 0.5, 3, 4, and 7 days, respectively, as maximum during fermentation. Results herein clearly indicate that A. oryzae could use S. purpurascens as a substrate in SSF to produce enzymes and bioactive compounds of industrial and nutritional interest.
Published Version
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