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HERO ID
4256505
Reference Type
Journal Article
Title
A chemical study of beta-carotene oxidation by ozone in an organic model system and the identification of the resulting products
Author(s)
de Jesus Benevides, CM; da Cunha Veloso, MC; de Paula Pereira, PA; de Andrade, JB
Year
2011
Is Peer Reviewed?
Yes
Journal
Food Chemistry
ISSN:
0308-8146
EISSN:
1873-7072
Volume
126
Issue
3
Page Numbers
927-934
DOI
10.1016/j.foodchem.2010.11.082
Web of Science Id
WOS:000287349400018
Abstract
Carotenoids are present in many foods. Due to their polyenic chains, they undergo oxidation reactions which may give several compounds. Ozone, a powerful antimicrobial agent, is applied in the food industry due to its high reactivity and penetrability. This work presents a chemical study of the degradation of beta-carotene in solutions, under the influence of ozone. The experiments were carried out at ozone concentrations ranging from 0.8 to 2.5 ppm and the beta-carotene solutions were sampled and analysed from zero to seven hours of reaction. The oxidation products were collected in C18 cartridges coated with dinitrophenylhydrazine and the hydrazones formed were analysed by LC-MS. The oxidation reaction was found to follow a zero order kinetic model and the beta-carotene decay ranged between 17.2% and 99.8%. Fourteen oxidation products were tentatively identified, amongst them eight which had not been cited yet in the literature as oxidation products of beta-carotene. (C) 2010 Elsevier Ltd. All rights reserved.
Keywords
beta-Carotene; Ozonolysis; Organic model system; Oxidation products; LC-MS
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NAAQS
•
ISA-Ozone (2020 Final Project Page)
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