PROTEOLYTIC POTENTIAL OF PSEUDOMONAS FLUORESCENS ISOLATED FROM 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 کاملThe proteolytic activity of Pseudomonas Fluorescens 07A isolated from milk is not regulated by quorum sensing signals
The proteolytic activity of Pseudomonas fluorescens 07A was investigated, and was optimal on tryptone-calcium medium. N-acyl-homoserine lactones (AHLs) were not detected on supernatants of late-exponential and stationary-phase culture broths. Synthetic AHLs or bacterial cell extracts added to the medium did not influence growth or proteolytic activity suggesting that quorum sensing might not re...
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 کاملSome characteristics of proteolytic enzymes from Pseudomonas fluorescens.
Our interest was stimulated by observing the active proteolytic abilities of a culture of Pseudomonas fluorescens isolated from a frozen chicken pie. The culture liquified gelatin rapidly and attacked casein strongly. In addition, the culture displayed considerable lipolytic and amylolytic activity. The culture was isolated from a tryptone-glucose-meat-extract-agar plate after incubation at 5 C...
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ژورنال
عنوان ژورنال: Revista Brasileira de Agropecuária Sustentável
سال: 2014
ISSN: 2236-9724,2317-5818
DOI: 10.21206/rbas.v4i2.254