Action patterns of some alpha-type amylases

Effect of Replacing Fishmeal with Plukenetia volubilis Cake on Growth, Digestive Enzymes, and Body Composition in Whiteleg Shrimp (Litopenaeus vannamei)

“…For trypsin and chymotrypsin, one unit of enzyme activity (U) was defined as the amount of enzyme that released 1 µmol of p-nitroanilide per min, using 8800 M cm −1 as the extinction coefficient, measured at 405 nm. The amylase activity was determined according to the Somogyi-Nelson method using soluble starch (2% w/v) as the substrate, as described by Robyt and Whelan [33]. One unit of activity (U) was defined as the amount of enzyme capable of producing 1 mg of maltose per minute.…”

Amylolytic enzymes and selected physiological properties of Streptococcus bovis and Streptococcus equinus

“…The acid-stable a-amylase of Aspergillus niger produces mostly G^, slightly less G^, slightly less G^^ than G^, and very small quantities of G^ and G^ as final products on starch (Minoda e_t a%., 1968). The main end products of the hydrolysis of amylose produced by human salivary amylase are G^ and G^ with small quantities of and Gj^; the same is the case for porcine pancreatic amylase except that larger quantities of and G^ are produced (Robyt, 1962) . However, porcine pancreatic amylase has a degree of multiple attack of about six which is twice that of human salivary amylase (Sobyt and French,19Ô7).…”

Amylolytic enzymes and selected physiological properties of Streptococcus bovis and Streptococcus equinus

“…The acid-stable a-amylase of Aspergillus niger produces mostly G^, slightly less G^, slightly less G^^ than G^, and very small quantities of G^ and G^ as final products on starch (Minoda e_t a%., 1968). The main end products of the hydrolysis of amylose produced by human salivary amylase are G^ and G^ with small quantities of and Gj^; the same is the case for porcine pancreatic amylase except that larger quantities of and G^ are produced (Robyt, 1962 Another advantage of using S. bovis for commercial amylase production would be that it is devoid of proteolytic activity (Deibel, 1964- (Prescott ^ al., 1959) or bicarbonate, and glutamine also serves as a sole source of nitrogen (Wolin 5^ et al, 1959). Wolin and Weinberg (I960) found that growth with ammonium salts, but not with glutamine, requires an un known substance formed by autoclaving phosphate with glucose.…”