COMPOSITION AND PHYSICOCHEMICAL PROPERTIES OF UNRIPE KOREAN PEAR CULTIVARS
Thinned pear fruit are thrown away as waste although they contain nutrients such as dietary fiber. For the investigation of possible use as functional materials, five Korean pear cultivars (Chuwhangbae, Gamcheonbae, Manpungbae, Niitaka, Hanareum) were studied at unripe stage to determine the physicochemical properties and chemical compositions. The cultivars were picked at 30 days after full bloom, and all samples were analyzed for external and physicochemical properties. The size of the fruit from all five cultivars was compared, and it was determined that fruit from Gamcheonbae and Manpungbae were large, while fruit from Chuwhangbae were small. The moisture content ranged from 71.5-75.0%, with those of Hanareum being highest and Chuwhangbae lowest. The contents of crude lipid (2.30-2.94%) and crude ash (4.57-4.89%) were significantly different among cultivars. Dietary fiber was 13.0-18.2%, significantly higher in Chuwhangbae. The free sugar contents were 2.72-3.31% and were composed of sorbitol, fructose and glucose. Total phenolic and flavonoid content of 80% EtOH extract in Manpungbae was higher than in other pears.
Yim, S.H., Kim, Y.K., Choi, J.J., Choi, J.H., Kim, S.J., Kwon, Y.H. and Lee, H.C. (2015). COMPOSITION AND PHYSICOCHEMICAL PROPERTIES OF UNRIPE KOREAN PEAR CULTIVARS. Acta Hortic. 1094, 555-558
Pyrus sp., sugar content, chemical compositions, thinned fruit