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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Raes, Katleen Doolaege, Evelyne H. A. Deman, Steven Vossen, Els De Smet, Stefaan |
| Description | Country affiliation: Belgium Author Affiliation: Raes K ( Department of Industrial Biological Sciences, Faculty of Bioscience Engineering, Laboratory for Food Microbiology and Biotechnology, Ghent University - Campus Kortrijk , Kortrijk , Belgium .) |
| Abstract | Carnosic acid, quercetin and -tocopherol are well-known antioxidants in many biological systems. However, their antioxidative effect during food digestion against lipid and protein oxidation is not well known. Therefore, in this study, an in vitro simulated gastric digestion model was used to investigate their stability during gastrointestinal conditions and their antioxidative properties during low pH digestion. In general, the stability of the antioxidants in the different steps of digestion was in the order of -tocopherol > quercetin > carnosic acid. Salivary components, as well as the acidity of the gastric juice, were responsible for the reduction in antioxidants. Both -tocopherol and quercetin were able to lower lipid oxidation during digestion, while the effect on protein oxidation was not clear. In contrast, carnosic acid did not have any effect on lipid oxidation and tended to stimulate protein oxidation. This study clearly demonstrated that the environmental conditions are of major importance to the properties of antioxidant compounds. |
| File Format | HTM / HTML |
| ISSN | 09637486 |
| Issue Number | 2 |
| Volume Number | 66 |
| e-ISSN | 14653478 |
| Journal | International Journal of Food Sciences and Nutrition |
| Language | English |
| Publisher | Taylor & Francis |
| Publisher Date | 2015-03-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Nutritional Sciences Antioxidants Pharmacology Diterpenes, Abietane Gastrointestinal Tract Chemistry Lipid Peroxidation Drug Effects Plant Extracts Protein Carbonylation Quercetin Alpha-tocopherol Digestion Gastric Acid Humans Hydrogen-ion Concentration In Vitro Techniques Oxidation-reduction Saliva Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Food Science |
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