Zhang Mingxia, Nan Haijuan, Wang Yanjie, Jiang Xiaoying, Li Zheng
Henan Institute of Science and Technology, Xinxiang 453003, Henan, China.
Food Science and Human Nutrition Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA.
Molecules. 2014 Oct 28;19(11):17314-28. doi: 10.3390/molecules191117314.
The objective of this study was to investigate the effect of different cultivation regions on the pattern and content of flavonoids in two pummelo cultivars (C. grandis L. Osbeck) in China. Results showed that similar patterns of flavonoids were observed in the flavedo or juice of each pummelo cultivar from these cultivation regions, whereas the individual flavonoid content showed unique characteristics. Naringin, the predominant flavanone glycoside, showed the highest content in both flavedo and juice of C. grandis "Guanximiyu" from the Pinghe of Fujian (FJ) cultivation region compared with the Dapu of Guangdong (GD) and Nanbu of Sichuan (SC) regions. However, its content in the flavedo of C. grandis "Shatianyu" from the Pingle of Guangxi (GX) was significantly lower than in the GD and SC regions. Vicenin-2 appeared to be the dominant flavone C-glycoside in the flavedo of both cultivars, and the lowest content was observed in the flavedo of C. grandis "Guanximiyu" from the SC region. However, C. grandis "Shatianyu" contained the highest content of vicenin-2 in the flavedo from SC region. Similarly, the predominant flavone O-glucoside, rhoifolin, showed the highest content in C. grandis "Guanximiyu" from the GD and FJ regions, whereas C. grandis "Shatianyu" in SC region showed the highest content of rhoifolin. Cluster analysis suggested that genotype played a primary role in determining the flavonoid profiles of pummelo cultivars, whereas regional differences significantly affected the flavonoid distribution of pummelo cultivars potentially via affecting the direction of flavonoid accumulation in pummelo.
本研究的目的是调查不同种植区域对中国两个柚品种（琯溪蜜柚，C. grandis L. Osbeck）黄酮类化合物模式和含量的影响。结果表明，来自这些种植区域的每个柚品种的外果皮或果汁中观察到相似的黄酮类化合物模式，而单个黄酮类化合物的含量呈现出独特的特征。柚皮苷，主要的黄烷酮糖苷，与广东大埔（GD）和四川南部（SC）地区相比，在福建平和（FJ）种植区域的琯溪蜜柚的外果皮和果汁中含量最高。然而，广西平乐（GX）的沙田柚外果皮中其含量显著低于GD和SC地区。异荭草苷 - 2似乎是两个品种外果皮中主要的黄酮C - 糖苷，在四川南部地区的琯溪蜜柚外果皮中含量最低。然而，四川南部地区的沙田柚外果皮中异荭草苷 - 2含量最高。同样，主要的黄酮O - 葡萄糖苷，芸香柚皮苷，在广东和福建地区的琯溪蜜柚中含量最高，而四川南部地区的沙田柚中芸香柚皮苷含量最高。聚类分析表明，基因型在决定柚品种的黄酮类化合物谱方面起主要作用，而区域差异可能通过影响柚中黄酮类化合物积累的方向显著影响柚品种的黄酮类化合物分布。
