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פותח על ידי קלירמאש פתרונות בע"מ -
Relationship between ‘antitryptic factors’ of some plant protein feeds and products of proteolysis precipitable by trichloroacetic acid
Year:
1963
Authors :
בילורי, רחל
;
.
Volume :
14
Co-Authors:
Bielorai, R., National and University Institute for Agriculture, Rehovot, Israel
Bondi, A., National and University Institute for Agriculture, Rehovot, Israel
Facilitators :
From page:
124
To page:
132
(
Total pages:
9
)
Abstract:
A correlation exists between the level of antitryptic factors present in pancreatic digests and the amount of nitrogen precipitable from those digests by trichloroacetic acid (TCA). Large amounts of TCA‐precipitable nitrogen were obtained from digests of raw soya‐bean meal (RSBM), medium amounts from those of toasted soya‐bean meal (TSBM) and sunflower meal, whereas animal protein feeds and cottonseed meal lacked such a fraction. The quantity of TCA‐precipitable fraction obtainable from a pancreatic digest of TSBM or sunflower meal depends on the ratio between inhibitors and enzyme present in the assay mixture. Heavy TCA precipitates were also obtained from the intestinal contents of chickens which had been fed RSBM. This may be taken as evidence for the stability of this fraction during in vivo digestion. On the other hand, TCA yields only very slight precipitates when added to intestinal contents of chickens fed fish meal, cottonseed meal, TSBM or sunflower meal. The proteolytic enzymes secreted into the intestine are apparently sufficient to overcome the moderate amounts of inhibitors present in TSBM or sunflower meal. Copyright © 1963 John Wiley & Sons, Ltd
Note:
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More details
DOI :
10.1002/jsfa.2740140209
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
28228
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:37
Scientific Publication
Relationship between ‘antitryptic factors’ of some plant protein feeds and products of proteolysis precipitable by trichloroacetic acid
14
Bielorai, R., National and University Institute for Agriculture, Rehovot, Israel
Bondi, A., National and University Institute for Agriculture, Rehovot, Israel
Relationship between ‘antitryptic factors’ of some plant protein feeds and products of proteolysis precipitable by trichloroacetic acid
A correlation exists between the level of antitryptic factors present in pancreatic digests and the amount of nitrogen precipitable from those digests by trichloroacetic acid (TCA). Large amounts of TCA‐precipitable nitrogen were obtained from digests of raw soya‐bean meal (RSBM), medium amounts from those of toasted soya‐bean meal (TSBM) and sunflower meal, whereas animal protein feeds and cottonseed meal lacked such a fraction. The quantity of TCA‐precipitable fraction obtainable from a pancreatic digest of TSBM or sunflower meal depends on the ratio between inhibitors and enzyme present in the assay mixture. Heavy TCA precipitates were also obtained from the intestinal contents of chickens which had been fed RSBM. This may be taken as evidence for the stability of this fraction during in vivo digestion. On the other hand, TCA yields only very slight precipitates when added to intestinal contents of chickens fed fish meal, cottonseed meal, TSBM or sunflower meal. The proteolytic enzymes secreted into the intestine are apparently sufficient to overcome the moderate amounts of inhibitors present in TSBM or sunflower meal. Copyright © 1963 John Wiley & Sons, Ltd
Scientific Publication
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