Taste characters and hedonic study of three popular lychees (Litchi chinensis Sonn.) in Shenzhen

Feizixiao, Nuomici and Guiwei are very popular cultivars in Shenzhen.Quality indices about taste were tested by physicochemical methods.The total sugar content and total sweetness of Feizixiao was higher than Guiwei and Nuomici.Three lychees all contain eight organic acids, when the content of malic acid, tartaric acid and citric acid was higher.The total organic acid content of Feizixiao was higher than other two.9-point hedonic scale experiment was used to investigate the degree of liking for three lychees.The rank was Guiwei> Nuomici>Feizixiao.The degree of liking did not correspond with the ratios of TS/TA (p>0.05) .The ratio of total sugar to total organic acid and texture of lychee pulp were positive correlated with the degree of liking for three lychees (p<0.01) .