Optimization of free radical scavenging activity by response surface methodology in the hydrolysis of shrimp processing discards

Response surface methodology (RSM) was used to optimize the hydrolysis conditions (temperature, pH and Alcalase ® 2,4L concentration), in order to obtain the hydrolysate with the strongest antioxidant activity using the 1,1-diphenyl-2-picryl-hydrazyl (DPPH ) decolouration assay. The optimum conditio...

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Published in:Process biochemistry (1991) 2007-11, Vol.42 (11), p.1486-1491
Main Authors: Guerard, Fabienne, Sumaya-Martinez, Maria Teresa, Laroque, Delphine, Chabeaud, Aurélie, Dufossé, Laurent
Format: Article
Language:English
Subjects:
Alcalase ® 2,4L
Antioxidant activity
Environmental Sciences
Hydrolysis
Response surface methodology (RSM)
Shrimp by-product
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creator Guerard, Fabienne
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description Response surface methodology (RSM) was used to optimize the hydrolysis conditions (temperature, pH and Alcalase ® 2,4L concentration), in order to obtain the hydrolysate with the strongest antioxidant activity using the 1,1-diphenyl-2-picryl-hydrazyl (DPPH ) decolouration assay. The optimum conditions obtained from experiments were pH 9.7, 66.2 °C, enzyme concentration = 68.1 Anson units (AU)/kg crude protein. The analysis of variance in RSM showed that pH and temperature ( T) were the most important factors of the process ( P < 0.001). The experimental conditions produced both an enzymatic and chemical protein solubilization.
doi_str_mv 10.1016/j.procbio.2007.07.016
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subjects Alcalase ® 2,4L
Antioxidant activity
Environmental Sciences
Hydrolysis
Response surface methodology (RSM)
Shrimp by-product
title Optimization of free radical scavenging activity by response surface methodology in the hydrolysis of shrimp processing discards
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