TITLE:
Enzymatic Hydrolysis of Hairtail Surimi in an Ultra-High Pressure Bioreactor
AUTHORS:
Deqing Yang, Rong Liu, Yongsheng Wang, Minrui Ou, Junjie Gu
KEYWORDS:
Enzymatic Hydrolysis, Ultra-High Pressure, Hairtail Surimi, Amino Acids
JOURNAL NAME:
Advances in Biological Chemistry,
Vol.9 No.6,
December
30,
2019
ABSTRACT: Amino acids have been extracted from Hairtail surimi using enzymes in an
ultra-high pressure bioreactor. The extraction efficiency of different enzymes
including papain, trypsin, and proteases (acid, neutral, alkaline) also has
been evaluated, and it has been discovered that neutral protease behaved the
best. The amino acids were analyzed using automatic amino acid analyzer, and the enzymatic
digestion conditions were optimized. For neutral protease, the optimal
condition was 50℃, 250 MPa, pH 7.0. Material to
liquid ratio of enzyme is 6%. More than 29 amino acids
were detected after 24 hours of hydrolysis; the enzymatic hydrolysis rate can
reach 83.29%. The results show that enzymatic digestion under
ultra-high-pressure provides a very promising approach to extract amino acids
from Hairtail surimi.