Abd El-Khalek, M., El- Dengawy, R., Ramadan, B., Garbe, L., Kurz, T. (2009). CAROTENOIDS AND TOCOPHEROL CONTENT OF TOMATO FRUITS AND TOMATO PRODUCTS. Journal of Food and Dairy Sciences, 34(4), 2945-2951. doi: 10.21608/jfds.2009.112447
Manar Refaat Abd El-Khalek; R. A. H. El- Dengawy; B. R. Ramadan; Leif- A. Garbe; T. Kurz. "CAROTENOIDS AND TOCOPHEROL CONTENT OF TOMATO FRUITS AND TOMATO PRODUCTS". Journal of Food and Dairy Sciences, 34, 4, 2009, 2945-2951. doi: 10.21608/jfds.2009.112447
Abd El-Khalek, M., El- Dengawy, R., Ramadan, B., Garbe, L., Kurz, T. (2009). 'CAROTENOIDS AND TOCOPHEROL CONTENT OF TOMATO FRUITS AND TOMATO PRODUCTS', Journal of Food and Dairy Sciences, 34(4), pp. 2945-2951. doi: 10.21608/jfds.2009.112447
Abd El-Khalek, M., El- Dengawy, R., Ramadan, B., Garbe, L., Kurz, T. CAROTENOIDS AND TOCOPHEROL CONTENT OF TOMATO FRUITS AND TOMATO PRODUCTS. Journal of Food and Dairy Sciences, 2009; 34(4): 2945-2951. doi: 10.21608/jfds.2009.112447
CAROTENOIDS AND TOCOPHEROL CONTENT OF TOMATO FRUITS AND TOMATO PRODUCTS
1Chemistry Department, Faculty of science, Mansoura University
2Dept. of Food Industries, Faculty of Agric. at Damietta, Mansoura Univ., Damietta, Egypt
3Dept. of Food Sci. & Techn., Faculty of Agric., Assiut Univ., Assiut, Egypt
4Inst. of Biotechnology, Berlin Univ. of Technology, Berlin, Germany
5Berlin Sugar Institute, Berlin Univ. of Technology, Berlin, Germany
Abstract
The changes in the ß-carotene, lycopene and α-tocopherol content of tomato as a function of varieties and processing factors were investigated. The concentration of ß-carotene, lycopene and α-tocopherol were ranged from 653.5 to 2032.1 µg/l00g, from 825.0 to 2290.5 µg/l00g and from 43.0 to 94.8 µg/l00g fresh weigh of ripe tomato fruits, respectively. The prepared tomato products; juice and paste contained higher amounts of lycopene (938.0- 4069.9 µg/l00g) and α-tocopherol (137.0- 396.0 µg/l00g) than tomato fruits for fresh consumption. Tomato juice and paste from the market contained amount of ß-carotene more than that of the prepared juice and paste. Significant differences could be obtained between the examined varieties with regard to caroteniods and α-tocopherol concentration. ß-carotene was the most susceptible compound toward thermal degradation.