The content of carbohydrate determines the sweetness of
persimmons, which is very important for the overall organoleptic
appearance of the fruit. The carbohydrate composition
of the investigated five persimmon cultivars are shown
on Table 1. Among the investigated sugars, glucose was the
predominant representative at both commercial harvest and
physiological ripening stage in all investigated cultivars. At
commercial harvest stage, glucose concentrations varied in
the range 5.8 g/100g FW (cv Jiro C 24276) – 8.9 g/100g FW
(cv Hiratanenashi). Fructose was the second most abundant
sugar found in concentrations 3.8 – 5.6 g/100g FW, whereas
sucrose and one unidentified disaccharide were found in very
low concentrations only in cv Hyakume. The total amount of
sugars in the commercial harvest stage samples was in the
range 9.6 – 14.4 g/100g FW being the highest in Hiratanenashi
persimmon. After the deastringency at physiological
ripening stage the content of individual representatives as
well as the total amount of sugars increased to values in the
range 11.5-16.5 which is characteristic for fully ripe persimmons.
Some authors found also low amounts of arabinose in
selected persimmon cultivars (Bubba et al., 2009), but in the
five cultivars investigated in our study, this sugar was not detected
neither at commercial harvest nor at physiological rip