Effects of Ethylene Treatment on Postharvest Quality of Astringent persimmon ‘Cheongdo-bansi’

This study was conducted to investigate the optimum storage temperature and the effect of ethylene on the postharvest quality of astringent persimmon (Diospyros kaki L) ‘Cheongdobansi’ fruits. We treated fruits with 10 μL・L -1 ethylene at 20, 15 and 10°C. Our results indicated that higher storage temperature rapidly reduced firmness and astringency. The soft persimmon fruits stored at 15°C showed the best quality relative to the fruits stored at 20°C and 10°C. Our findings also showed that ethylene generators, which are sold on the market, can effectively induce persimmons to soften in plastic film. Additional key words: astringency, ripening, soft persimmon *Corresponding author: limbsw@rda.go.kr ※ Received 22 May 2014; Revised 9 April 2015; Accepted 22 May 2015. (: PJ010234) . C 2015 Korean Society for Horticultural Science climacteric non-climacteric , . S-adenosylmethionine(SAM) ACC , ACC ACC (Riov and Yang, 1982). , , (Lim et al., 1996; Oh et al., 2007). polygalacturonase trigger (Grierson and Tucker, 1983), , ‘’ (Lim et al., 2009). , (Koh et al., 2003; Park et al., 2013), (Park et al., 2006). (Taira et al., 1990), (Park et al., , , , , , 669 Fig. 1. Ethylene production of ethylene generator in 30-L plastic container. Fig. 2. Ethylene production according to days after opening of ethylene generator in 30-L plastic container. 1998; Park et al., 2000). .