Collection and Identification of Molds from Citrus Oranges during Post-Harvest Storage

온주밀감 부패 곰팡이의 분리 및 동정

  • Ko, Young-Hwan (Department of Food Science and Technology, Cheju National University) ;
  • Kim, Se-Jae (Department of Biology, Cheju National University)
  • Published : 1996.12.30

Abstract

Long term-storage of citrus oranges after harvest has been hindered mainly by molds The goal of this research was to collect and identify those molds, which would help find a way to extend shelf-life after harvest. During the period of 1994 to 1995, fourteen different strains were isolated and purified from putrefied fruit (Citrus unshiu var.) that was stored at room temperature under open air. The storage disease was caused by the following molds: Penicillium italicum, 25.8%, Monilia candida, 19.8%; Alternaria citri, 18.1%; Mucor hiemalis, 11.0%; Phomopsis citri, 6.6%; Botrytis cinerea. 5.5%; Phoma citricarpa, 3.8%; Glomerella cingulata, 3.8%; P. digitatum, 1.1%; other molds, 4.5%; Most of the strains showed pectinolytic activity and putrefaction. These citrus fruit-putrefying molds will be used as target strains for the control of microorganisms during post-harvest storage.

Keywords

citrus orange;storage;mold;pectinolytic activity