Isolation of a novel alkaline-stable lipase from a metagenomic library and its specific application for milkfat flavor production
نویسندگان
چکیده
منابع مشابه
Isolation of a novel alkaline-stable lipase from a metagenomic library and its specific application for milkfat flavor production
BACKGROUND Lipolytic enzymes are commonly used to produce desired flavors in lipolyzed milkfat (LMF) manufacturing processes. However, the choice of enzyme is critical because it determines the final profile of fatty acids released and the consequent flavor of the product. We previously constructed a metagenomic library from marine sediments, to explore the novel enzymes which have unique prope...
متن کاملIsolation of a novel lipase from a metagenomic library derived from mangrove sediment from the south Brazilian coast.
A novel gene coding for a LipA-like lipase with 283 amino acids and a molecular mass of 32 kDa was isolated and characterized from a metagenomic library prepared from mangrove sediment from the south Brazilian coast. LipA was 52% identical to a lipolytic enzyme from an uncultured bacterium and shared only low identities (< or =31%) with lipases/esterases from cultivable microorganisms. Phylogen...
متن کاملLipase Immobilized into Novel GPTMS: TMOS Derived Sol-Gels and Its Application for Biodiesel Production from Waste Oil
In this essay, lipase from Burkholderia cepacia was immobilized into 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetramethoxysilane (TMOS) derived sol-gels. GPTMS:TMOS molar ratio of 1:3 was found to yield the best result. The morphological characteristics were investigated based on SEM and BET analysis. Sample mean pore diameter was 39.1 nm, it had a specific surface area of 60 m2/g prior to...
متن کاملDiscovery and characterizaton of a novel lipase with transesterification activity from hot spring metagenomic library
A new gene encoding a lipase (designated as Lip-1) was identified from a metagenomic bacterial artificial chromosome(BAC) library prepared from a concentrated water sample collected from a hot spring field in Niujie, Eryuan of Yunnan province in China. The open reading frame of this gene encoded 622 amino acid residues. It was cloned, fused with the oleosin gene and over expressed in Escherichi...
متن کاملIdentification and molecular modeling of a novel lipase from an Antarctic soil metagenomic library.
In this work, we present the construction of a metagenomic library in Escherichia coli using pUC19 vector and environmental DNA directly isolated from Antarctic topsoil and screened for lipolytic enzymes. Screening on agar supplemented with olive oil and rhodamine B revealed one clone with lipolytic activity (Lip1) out of 1000 E. coli clones. This clone harbored a plasmid, pLip1, which has an i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microbial Cell Factories
سال: 2014
ISSN: 1475-2859
DOI: 10.1186/1475-2859-13-1