Pseudomonas spp. and P. fluorescens: population in refrigerated raw milk
نویسندگان
چکیده
منابع مشابه
Milk-deteriorating exoenzymes from Pseudomonas fluorescens 041 isolated from refrigerated raw milk
The practice of refrigerating raw milk at the farm has provided a selective advantage for psychrotrophic bacteria that produce heat-stable proteases and lipases causing severe quality problems to the dairy industry. In this work, a protease (AprX) and a lipase (LipM) produced by Pseudomonas fluorescens 041, a highly proteolytic and lipolytic strain isolated from raw milk obtained from a Brazili...
متن کاملHydrolytic potential of a psychrotrophic Pseudomonas isolated from refrigerated raw milk
The production of extracellular hydrolases by a psychrotrophic bacterium isolated from refrigerated raw milk, and identified as a Pseudomonas sp. belonging to the Pseudomonas jenssenii group, was studied. This bacterium produced proteolytic and lipolytic enzymes in all media investigated (skim milk, cheese whey, casein broth, and tryptone soy broth). High levels of α-glucosidase were produced i...
متن کاملDraft Genome Sequence of Pseudomonas fluorescens SRM1, an Isolate from Spoiled Raw Milk
Pseudomonas fluorescens is considered a major milk spoilage organism due to its psychrotrophic nature and ability to produce heat-stable proteases and lipases. Here, we report the draft genome and annotation of P. fluorescens SRM1 isolated from spoiled raw milk and the presence of an operon encoding spoilage enzymes.
متن کاملCharacterization of Pseudomonas spp. and Associated Proteolytic Properties in Raw Milk Stored at Low Temperatures
Milk spoilage is caused by the presence of proteolytic enzymes produced by Pseudomonas spp. during storage at low temperatures. The aim of this study was to identify Pseudomonas spp. in raw milk and investigate their associated proteolytic properties at low temperatures. Raw milk samples (n = 87) were collected from 87 bulk tanks in Shaanxi Province in China. Pseudomonas spp. were identified us...
متن کاملPrevalence of Listeria Spp. in Raw Milk in Syria
Testing for Listeria spp. was performed in milk samples collected from Syrian provinces, from August 2005 to December 2008. A total of 766 milk samples were collected from randomly selected dairy farms. Using conventional bacteriologic methods, 84 samples (10.96%) were positive for Listeria spp. The isolated Listeria spp. strains were catalase positive, oxidase negative, did not produce H2S and...
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ژورنال
عنوان ژورنال: Ciência Rural
سال: 2017
ISSN: 0103-8478
DOI: 10.1590/0103-8478cr20151540