Shrimp Hepatopancreatic Crude Enzymes as Aids in Rice Bran Hydrolysis: Potential Contributors to Sustainable Aquaculture

Enzyme-pretreated rice bran is commonly used in biofloc aquaculture. In this work, crude enzymes from discards of P. vannamei were used for enzymatic pre-treatment of rice bran. P. vannamei crude enzyme extract is rich in proteases and amylases that hydrolyze casein and rice bran starch, respectively, at a rate comparable to commercial enzymes. In seawater media, P. vannamei midgut gland amylase activity is significantly higher than to commercial enzymes. Data on the use of enzymatic extracts obtained from shrimp discards is presented, contributing to future sustainable use of agriculture, aquaculture, and fisheries resources by probing an application of such by-products.

Automated summary

In this study, crude enzymes from discarded P. vannamei were used to pretreat rice bran. The crude enzyme extract from P. vannamei contains proteases and amylases that can hydrolyze casein and rice bran starch, respectively, at a comparable rate to commercial enzymes. The enzymatic extracts obtained from shrimp discards are presented, contributing to the future sustainable use of agriculture, aquaculture, and fisheries resources.