This indicates that cocoa beans contain carboxypeptidase
enzymes with optimal activity at a pH close to 5.8, releasing hydrophobic amino acids whose activity decreases considerably at pH values below 5.0.
A activity was determined by the method of Folk & Schirmer (1963) using as substrate Hippuryl-L-phenylalanine (1 mmol [L.sup.-1]).
Future studies using amino-peptidase, carboxypeptidase
, and DPP-IV inhibitors are warranted to determine if peptide degradation is implicated in lowered recoveries and plasma concentrations (14).
CathA is a member of the serine protease family of enzymes, with carboxypeptidase
activity at pH 5.5 and deamidase and esterase activity at pH 7.0 .
Aspartic protease, [beta]-galactosidase, peroxidase and serine carboxypeptidase
were detected in three Ephedra species.
More than 80 zinc enzymes (e.g, alcohol dehydrogenases, aldolases, peptidases, carboxypeptidases
, proteases, phosphatases, transphorylases and RNA and DNA polymerases, carbonic anhydrases) have been reported [13-16].
His research, done in collaboration with freshman and sophomore students, focuses on organic synthesis and enzymology, targeting novel inhibitors for carboxypeptidases
. He also collaborates with Professor Gillmore on his photochorome research.
monodon in this study, it could also be safely assumed that other proteases like carboxypeptidases
were present in P.
The few enzymes that have been documented include trypsin and carboxypeptidases
A and B in Callinectes sapidus (blue crab) (Dendinger, 1987; Dendinger and O'Connor, 1990); [alpha]-amylase in Carcinus maenas (green crab) (Blandamer and Beechy, 1964); and [alpha]-glucosidase in Cancer borealis (jonah crab), Cancer irroratus (rock crab) (Brun and Wojtowicz, 1976), and C.
The pancreas produces the hormones insulin and glucagon (involved in glucose homeostasis) and several digestive enzymes (including amylase, lipase, trypsin, chymotrypsin, and carboxypeptidases
A number of enzymes, including [Beta]-lactamases, carboxypeptidases
, and squalene epoxidase, are under current study to develop inhibitors which may be useful medicinal agents and to gain insights into mechanisms of catalysis.