The effects of production factors (protease used, percent enz
yme, h
ydrol
ysis time,
and water-to-substrate ratio) on the antioxidant activit
y of h
ydrol
ysates produced from shrimp processing b
yproducts (SPB) were assessed using Taguchi鈥檚 L
16 (4
5) fractional factorial design. SPB h
ydrol
ysates showed excellent ABTS radical scavenging activit
y, metal ion chelating capacit
y,
and inhibition of
lipid peroxidation, but weak DPPH radical scavenging activit
y and ferric ion reducing antioxidant power. The protease used significantl
y influenced antioxidant activities while h
ydrol
ysis time
and percent enz
yme affected radical scavenging activities
and inhibition of
lipid peroxidation, respectivel
y. Differences in the
lipid
and amino acid contents observed between SPB collected earl
y and late in the egg-bearing period ma
y have contributed to the s
light variance in antioxidant activities displa
yed b
y their h
ydrol
ysates. Nevertheless, SPB h
ydrol
ysates produced using Alcalase or Protamex had high antioxidant activit
y regardless of production factors
and egg-bearing period.
Keywords:
yproducts&qsSearchArea=searchText">shrimp processing byproducts; ymatic+hydrolysis&qsSearchArea=searchText">enzymatic hydrolysis; Taguchi鈥檚 L16 (45) design; y&qsSearchArea=searchText">antioxidant activity; egg-bearing period; amino acid content