Abstract
To clarify the changes in the quality of vegetables accompanying change of cultivars with time, the relationship between fruit quality and cultivars in tomato and sweet pepper were investigated. In the tomato, sugar contents in the fruits of more recent cultivars appeared to be greater than that in the fruits of earlier cultivars. In contrast, ascorbic acid contents in the fruits of recent cultivars seemed to be somewhat lower than that in the fruits of earlier cultivars. On the other hand, sugar contents in the fruits of more recent cultivars of sweet pepper were lower than those in the fruits of earlier cultivars. There were some differences in the quantitative fructose, glucose and sucrose composition among cultivars. In addition, ascorbic acid contents in the recent cultivars of sweet pepper were lower than that in the earlier cultivars.
Aqueous solutions from freeze-dried fruits of tomatoes and sweet pepper inhibited the mutagenicity of Trp-P-2 on Salmonella typhimurium TA 98 and TA 100. No trend was observed between inhibitory activities and the accompanying change of cultivars with time.
