Yeasts and Molds Isolated from Spoiling Citrus Products and By-Products1

Abstract

A variety of citrus products, including dried peel used as livestock fodder, unpasteurized orange juice and pasteurized, and chilled orange juice were selectively surveyed for their fungal microflora. Fungi isolated were 1) pasteurized orange juice: Aureobasidium pullulans, Cladosporium sp., and Penicillium sp., 2) unpasteurized orange juice: Candida maltosa, C. sake, Fusarium sp., Geotrichum sp., Hanseniaspora sp., H. guilliermondii, Penicillium sp., Pichia membranaefaciens, Saccharomyces cerevisiae, Schwanniomyces occidentalis, and Torulaspora delbrueckii and 3) dried peel: Aspergillus niger, Aspergillus sp., Byssochlamys sp., Fusarium sp., Penicillium sp., Rhizopus sp., Rhodotorula sp., Sc. occidentalis, and Trichoderma sp.