Publications by authors named "Havva Esra Tutuncu"

Unlabelled: Thermoalkaliphilic lipase enzymes are mostly favored for use in the detergent industry. While there has been considerable research on lipases, a significant portion of these enzymes remains unexplored or undocumented in the scientific literature. This work performed in silico phylogeny, sequence alignment, structural and enzyme-substrate interaction analyses of the five thermoalkaliphilic lipases belonging to different species ( lipase = Lip, B4113_201601 lipase = Lip, HTA426 lipase = Lip, SP22 lipase = Lip, NTU 03 lipase = Lip).

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Lipases are remarkable biocatalysts, adept at catalyzing the breakdown of diverse compounds into glycerol, fatty acids, and mono- and di-glycerides via hydrolysis. Beyond this, they facilitate esterification, transesterification, alcoholysis, acidolysis, and more, making them versatile in industrial applications. In industrial processes, lipases that exhibit high stability are favored as they can withstand harsh conditions.

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The aim of this study was to isolate a novel esterase from a hypersaline lake by sequence-based metagenomics. The metagenomic DNA was isolated from the enriched hypersaline lake sediment. Degenerate primers targeting the conserved regions of lipolytic enzymes of halophilic microorganisms were used for polymerase chain reaction (PCR) and a whole gene was identified by genome walking.

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Article Synopsis
  • Researchers developed AqpZ immobilized flat sheet membranes, examining how interfacial polymerization conditions and proteoliposome concentration affected the membranes' performance.
  • At higher proteoliposome concentrations, the specific permeate flux was significantly improved (up to 25 times better) compared to traditional thin film composite membranes, but the rejection of MgSO dropped to about 1.5%.
  • Overall, lower concentrations of proteoliposomes were found to optimize membrane performance, enhancing aspects like permeate flux and pollutant rejection compared to TFC membranes.
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