Podisus maculiventris (Say) is a generalist predator attacking many insect species from different orders. The bug injects saliva into its prey’s body. The ingested hemolymph and liquefied internal tissues pass through the bug’s alimentary tract. Collagenase working on peptide bonds of collagen and basement membrane proteins, leads to the disintegration of the prey’s internal organs. As yet, the...

Proteolytic activity of central-nervous-system tissue of the normal rat was examined over the pH range 2-9 with casein, haemoglobin and myelin basic protein as substrates. With casein as a substrate, brain and spinal cord homogenates showed very similar activity profiles with increasing pH, with the main peaks of proteolytic activity at pH 3-4 and 5-6. When haemoglobin was used, one broad main ...

Two experiments with 49 crossbred pigs were conducted to examine the effects of age and weaning system on various indicators of digestive development and capacity. In Exp. 1, pigs reared exclusively by the sow with no access to creep feed were killed at 1, 8, 16 and 22 d of age. Other pigs, weaned at 16 d of age to a milk protein diet fed either in dry or liquid form, were killed at 22 d of age...

the objective of this study was to identify acinetobacter in a traditional cheese from west azarbaijan, iran, and to study the lipolytic and proteolytic activities of these bacteria in ripening of white brine cheese. acinetobacter is a gram negative bacteria which can be found in different sources as dairy products. lypolysis and proteolysis characteristic of this bacteria and thus its role in ...

Proteolytic activity in extracts of lymphatic tissue has been described in the older literature,11 gelatin, casein, and serum albumin having been used as substrates. More recently bovine tonsils were reported to contain a protease that cleaves serum albumin.7 Rothschild and Junqueirae found proteolytic activity in lymph node homogenates, using globin as substrate. In the present investigation, ...