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פותח על ידי קלירמאש פתרונות בע"מ -
Saliva plays a dual role in oxidation process in stomach medium
Year:
2007
Authors :
קנר, יוסף
;
.
Volume :
458
Co-Authors:
Gorelik, S., Department of Pharmaceutics, School of Pharmacy, The Hebrew University of Jerusalem, P.O.B. 12065, Jerusalem, 91120, Israel
Kohen, R., Department of Pharmaceutics, School of Pharmacy, The Hebrew University of Jerusalem, P.O.B. 12065, Jerusalem, 91120, Israel
Ligumsky, M., Gastrointestinal Unit, Division of Internal Medicine, Hadassah Medical Center, Jerusalem, Israel
Kanner, J., Department of Food Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
236
To page:
243
(
Total pages:
8
)
Abstract:
The aim of this study was to evaluate the role of saliva in the oxidation process under the acidic condition of the stomach. Saliva specimens played varied roles in the lipid peroxidation process of heated muscle tissue in simulated gastric fluid: pro-oxidant effects, no effects, and antioxidant effects. To elucidate these differences, selected saliva components were examined. The pseudoperoxidase activity of lactoperoxidase increased lipid peroxidation, while thiocyanate and nitrite-reduced lipid peroxidation. The effect of a saliva specimen on lipid peroxidation was correlated with the concentration of nitrite in the specimen, but not with that of other saliva components. The inhibitory effect of nitrite may be due to its conversion to NO. Elucidation of the antioxidant effect of saliva on co-oxidation of d-α-tocopherol in gastric fluid, demonstrated that saliva alone cannot protect d-α-tocopherol from co-oxidation, although it partially protected against lipid peroxidation. The presence of red wine polyphenols in stomach medium totally inhibits food lipid peroxidation and d-α-tocopherol co-oxidation. © 2006 Elsevier Inc. All rights reserved.
Note:
Related Files :
adult
Animals
antioxidants
flavonoids
lactoperoxidase
meat
pH
phenols
poultry
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.abb.2006.12.006
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32828
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:12
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Scientific Publication
Saliva plays a dual role in oxidation process in stomach medium
458
Gorelik, S., Department of Pharmaceutics, School of Pharmacy, The Hebrew University of Jerusalem, P.O.B. 12065, Jerusalem, 91120, Israel
Kohen, R., Department of Pharmaceutics, School of Pharmacy, The Hebrew University of Jerusalem, P.O.B. 12065, Jerusalem, 91120, Israel
Ligumsky, M., Gastrointestinal Unit, Division of Internal Medicine, Hadassah Medical Center, Jerusalem, Israel
Kanner, J., Department of Food Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Saliva plays a dual role in oxidation process in stomach medium
The aim of this study was to evaluate the role of saliva in the oxidation process under the acidic condition of the stomach. Saliva specimens played varied roles in the lipid peroxidation process of heated muscle tissue in simulated gastric fluid: pro-oxidant effects, no effects, and antioxidant effects. To elucidate these differences, selected saliva components were examined. The pseudoperoxidase activity of lactoperoxidase increased lipid peroxidation, while thiocyanate and nitrite-reduced lipid peroxidation. The effect of a saliva specimen on lipid peroxidation was correlated with the concentration of nitrite in the specimen, but not with that of other saliva components. The inhibitory effect of nitrite may be due to its conversion to NO. Elucidation of the antioxidant effect of saliva on co-oxidation of d-α-tocopherol in gastric fluid, demonstrated that saliva alone cannot protect d-α-tocopherol from co-oxidation, although it partially protected against lipid peroxidation. The presence of red wine polyphenols in stomach medium totally inhibits food lipid peroxidation and d-α-tocopherol co-oxidation. © 2006 Elsevier Inc. All rights reserved.
Scientific Publication
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