Patterns of Pigment Changes in Pomegranate (Punica granatum L.) Peel during Fruit Ripening
文献类型: 外文期刊
作者: Zhao, Xueqing 1 ; Yuan, Zhaohe 1 ; Yin, Yanlei 2 ; Feng, Lijuan 2 ;
作者机构: 1.Nanjing Forestry Univ, Coll Forestry, 159 Longpan Rd, Nanjing 210037, Jiangsu, Peoples R China
2.Shandong Inst Pomol, Tai An, Shandong, Peoples R China
关键词: pomegranate;anthocyanin;chlorophyll;carotenoid;pigment patterns
期刊名称:III INTERNATIONAL SYMPOSIUM ON POMEGRANATE AND MINOR MEDITERRANEAN FRUITS
ISSN:
年卷期:
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收录情况: SCI
摘要: Fruit color is one of the most important factors in marketing satisfaction. Pomegranate (Punica granatum L.) cultivars generally have fruit with colors ranging from green to red during ripening. An elite Chinese pomegranate cultivar 'Taishanhong' waspicked at 7 stages and analyzed by HPLC to determine chlorophylls, carotenoids, and anthocyanins in the peels of fruit. The pigment patterns of fruit development at different stages were revealed. Total chlorophylls and carotenoids decreased during fruitmaturation, while a continually increase of total anthocyanins occurred. After August 14, anthocyanin levels exhibited a rapid increase. With regard to carotenoids, represented by p-carotene and lutein, levels exhibited a constant decline except for aninitial increase P-carotene concentration. Chlorophylls (chlorophyll a, chlorophyll b) decreased continuously until they almost disappeared. The temporal changes in chlorophyll a, chlorophyll b, and lutein during the color transition of the peel from green to red were very similar. Six anthocyanins including delphinidin 3,5-diglucoside (Dp3,5dG), cyanidin 3,5-diglucoside (Cy3,5dG), pelargonidin 3,5-diglucoside (Pg3,5dG), delphinidin 3-glucoside (Dp3G), cyanidin 3-glucoside (Cy3G), and pelargonidin 3-glucoside (Pg3G) exhibited varying patterns with time. The main concentration of Cy3,5dG (2.99 mg 100 g~(-1)) and Cy3G (3.10 mg 100 g~(-1)) presented significant differences during ripening period (p<0.05) compared with other four anthocyanins. The resultsindicated that the loss of green colour and the development of red coloration were due to an almost complete loss of chlorophylls and carotenoids, and an increase in anthocyanins. Cy3,5dG and Cy3G were the major anthocyanins in pomegranate peel.
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