Effect of peeling and heating on carotenoid content and antioxidant activity of tomato and tomato-virgin olive oil systems

被引:63
作者
Graziani, G [1 ]
Pernice, R [1 ]
Lanzuise, S [1 ]
Vitaglione, P [1 ]
Anese, M [1 ]
Fogliano, V [1 ]
机构
[1] Univ Udine, Dipartimento Sci Alimenti, I-33100 Udine, Italy
关键词
antioxidant activity; carotenoids; Maillard reaction; thermal treatment; tomato;
D O I
10.1007/s00217-002-0626-7
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The effects of peeling and laboratory- or industrial-scale heating on carotenoid content and radical scavenging activity of tomato and tomato-virgin olive oil mixtures were investigated. A decrease in carotenoid content was detected only after long heating times. Such a decrease was lower for the unpeeled than for the peeled tomatoes. No change, either in lycopene concentration or in the chain-breaking activity of the lipophilic fractions, was observed when both laboratory- and industrial-scale heating treatments were performed on peeled-tomato puree containing 5% virgin olive oil. The aqueous fractions, including high-molecular-weight brown polymers formed as a consequence of heating, were also characterized for color, elementary composition and antioxidant activity.
引用
收藏
页码:116 / 121
页数:6
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