In order to elucidate the relationship between color and pigments composition and their content in tomato fruit,the light absorption spectrum (350 -700nm) of pigments extracted from tomato fruits were analyzed,determined carotenoid content by HPLC and chlorophyll content by spectrophotometer. The results showed that the red color of the red-fruit cultivar mainly resulted from high content of lycopene; the contents of lycopene were 36. 0μg/g (L402) and 33. 3μg/g (Lisheng-8) and the ratios of yellow carotenoids and red carotenoids were 0. 19 (L402) and 0. 24 (Lisheng-8). The yellow color of the yellow-fruit cultivar mainly resulted from high content of yellow carotenoids. The contents of β-carotene and lutein respectively were 0. 9,1. 0μg/g in Jin-guan. The ratio of yellow carotenoids to red carotenoids was 0. 73. The content of chlorophyll reached 11.4μg/g (71. 7%) in the green-fruit cultivar, wihich was main reason of green color. The dark red of Hongz-11 mainly resulted from high content of lycopene and relatively high content of chlorophyll and β-carotene. From these, the color of tomato fruit was decided by pigment composition,their contents and ratios.
国家科技期刊平台
NSTL
维普
万方数据
