منابع مشابه
Heat resistance of Byssochlamys ascospores.
Ascospores from 25 strains of Byssochlamys were studied for their ability to resist heat treatment in a standard defined medium. Seven of these were able to survive heating at 90 degrees C for 25 min or longer, when initial numbers were frequently near 10(6)/ml. Ascospores from five resistant strains suspended in the medium at pH 5.0 were usually more resistant than those at pH 3.6. Rapid heat ...
متن کاملThermal inactivation of Byssochlamys nivea in pineapple juice combined with preliminary high pressure treatments
Byssochlamys nivea is a thermal resistant filamentous fungi and potential micotoxin producer. Recent studies have verified the presence of ascospores of such microorganism in samples of pineapple nectars and juices. Although the majority of filamentous fungi have limited heat resistance and are easily destroyed by heat, Byssochlamys nivea ascospores have shown high thermal resistance. The aim o...
متن کاملEnumeration of byssochlamys and other heat-resistant molds.
Methods for the detection of low numbers of heat-resistant molds on fruits were studied by using cultures of Byssochlamys and a number of unidentified mold isolates. Ascospore dormancy had a marked effect on viable recoveries, and the medium in which ascospores were heated influenced activation rates. Best results were obtained when fruit homogenates were heated for 60 min at 70 C in Concord gr...
متن کاملThermal Inactivation of Byssochlamys Nivea in Pineapple Nectar Combined with Preliminary High Pressure Treatments
Byssochlamys nivea is a thermal resistant filamentous fungi and potential micotoxin producer. Recent studies have verified the presence of ascospores of such microorganism in samples of pineapple nectars. Although the majority of filamentous fungi have limited heat resistance and are easily destroyed by heat, Byssochlamys nivea ascospores have shown high thermal resistance. The aim of this work...
متن کاملSexual reproduction as the cause of heat resistance in the food spoilage fungus Byssochlamys spectabilis (anamorph Paecilomyces variotii).
Paecilomyces variotii is a common cosmopolitan species that is able to spoil various food- and feedstuffs and is frequently encountered in heat-treated products. However, isolates from heat-treated products rarely form ascospores. In this study we examined by using molecular techniques and mating tests whether this species can undergo a sexual cycle and form ascospores. The population structure...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1979
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.37.3.449-453.1979