Comparison of medicinal functional components in young fruits of different citrus germplasms
In early to mid-July,young fruits of 47 citrus germplasms(35 Poncirus trifoliata germplasms,3 Citrus aurantium germplasms,3 C.junos germplasms,3 C.reticulata germplasms,and 3 C.medica germ-plasms)were collected from Hunan and Hubei provinces to measure the total flavonoids,total phenolics,and total antioxidant capacity.Using HPLC method,11 types of medicinal functional components were detected in 15 germplasms(3 each of P.trifoliata,C.aurantium,C.junos,C.reticulata,and C.medica).The correla-tions among different indicators were analyzed.Cluster analysis was performed based on the functional compo-nent indicators of those 15 germplasms.The results showed significant differences in the types and contents of functional components among different germplasms.Among them,the total flavonoids,total phenols and total antioxidant capacity of Hansen No.1 sour orange,Hansen No.2 sour orange,and Danjiangkou tangerine were significantly higher than that of others.Among the 15 germplasms,Hansen No.2 sour orange,Hansen No.1 sour orange,and Danjiangkou citron had higher contents of naringin,while the round-leaf Mangshan wild man-darin showed higher contents of isorhamnetin,synephrine and hesperidin.Putong trifoliate orange and No.22 trifoliate orange had higher content of imperatorin,while Hansen No.1 and Hansen No.2 sour oranges con-tained higher contents of neo-hesperidin and rutin.Xiangcheng No.2 and Xiangcheng No.1 yuzu ichandrins had higher contents of narirutin,while citron C-05 had a higher content of limonin.Naringenin and hesperetin were not detected in any of these 15 germplasms.Total phenolics and total flavonoids showed a significant pos-itive correlation,and neo-hesperidin was significantly positively correlated with total antioxidant capacity,total phenolics,and narirutin.Limonin showed a significant negative correlation with hesperidin and a significant positive correlation with imperatorin.Based on the indicators of functional components,the 15 germplasm sam-ples can be clustered into 6 categories.
citrus young fruitsfunctional componentcorrelation analysiscluster analysis
万方数据
维普
