Comparative Study on the Content of Total Flavonoid and Naringin in Different Cultivars of Citrus Grandis ‘Tomentosa’ / 中药新药与临床药理

Objective To choose a best cultivar by comparing the content of total flavonoid and naringin between different cultivars of Citrus grandis 'tomentosa'.Methods The content of total flavonoids was determined by spetral photometric analysis.The content of naringin was determined by HPLC.Results The content of total flavonoid was 19.24 % and 18.06 %,and naringin content was 11.72 % and 12.38 % in the cultivars from Dachaling and Fengwei respectively,which were much higher than the other cultivars.Conclusion The contents of total flavonoid and naringin were different in different cultivars of Citrus grandis 'tomentosa'.The cultivars of Citrus grandis 'tomentosa' from Dachaling and Fengwei have the best quality.