Wareing P W
Natural Resources Institute, Kent, UK.
Int J Food Microbiol. 1997 Apr 1;35(2):137-45. doi: 10.1016/s0168-1605(96)01212-3.
A number of thermotolerant and thermophilic fungi were isolated from shipments of food-aid grain, and from large bag stacks of maize stored in sub-Saharan Africa. Thermotolerant fungi included Aspergillus candidus, A. fumigatus, A. flavus and Paecilomyces varioti; thermophilic fungi included Thermomyces lanuginosus, Rhizomucor pusillus, Thermoascus aurantiacus and T. crustaceous. Temperature profiles for Thermoascus spp. indicated that isolates of T. aurantiacus grew up to 60 degrees C, and T. crustaceous to 55 degrees C, whereas Paecilomyces could not grow above 50 degrees C. Thermoascus species isolated from grains conformed to published morphological descriptions. Problems associated with the detection and interpretation of fungal spoilage in relation to heat-damaged grain are discussed.
从粮食援助谷物运输批次以及撒哈拉以南非洲储存的大量玉米袋垛中分离出了多种耐热和嗜热真菌。耐热真菌包括白色曲霉、烟曲霉、黄曲霉和拟青霉；嗜热真菌包括嗜热栖热菌、微小根毛霉、橙色嗜热子囊菌和壳嗜热子囊菌。嗜热子囊菌属的温度曲线表明，橙色嗜热子囊菌的分离株能在高达60摄氏度的环境中生长，壳嗜热子囊菌能在55摄氏度的环境中生长，而拟青霉在高于50摄氏度的环境中无法生长。从谷物中分离出的嗜热子囊菌种符合已发表的形态学描述。文中讨论了与热损伤谷物中真菌腐败的检测和解读相关的问题。
