نتایج جستجو برای: poly beta hydroxybutyrate

تعداد نتایج: 267464  

Journal: :Pesquisa Veterinaria Brasileira 2021

ABSTRACT: Patients with acute renal failure often have a negative energy balance, which promotes metabolic changes predisposing to complications. The objective of this study was evaluate laboratory parameters 30 dogs severe failure, assess their relationship the possibility developing pancreatitis due and correlate these findings degree failure. Serum concentrations urea, creatinine, beta-hydro...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1996

2013
Anton Bonartsev Sergey Yakovlev Arasha Boskhomdzhiev Irina Zharkova Dmitrii Bagrov Vera Myshkina Tatiana Mahina Elena Kharitonova Olga Samsonova Anton Zernov Vsevolod Zhuikov Yurii Efremov Vera Voinova Garina Bonartseva Konstantin Shaitan

The copolymerization of poly(3-hydroxybutyrate) (PHB) is a promising trend in bioengineering to improve biomedical properties, e.g. biocompatibility, of this biodegradable polymer. We used strain Azotobacter chroococcum 7B, an effective producer of PHB, for biosynthesis of not only homopolymer and its main copolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-HV), but also novel terpolym...

Journal: :Journal of Polymers and The Environment 2021

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) were used to prepare microbeads, with diameter ranging from 50 100 µm, by an emulsion-evaporation process. The emulsification-evaporation process enables the formation of spherical polyhydroxyalcanoate beads, crystalline rates similar ones former polymer important surface roughness as compared amorpho...

Journal: :Biotechnology and bioengineering 2005
Jong Pil Park Kyung-Bok Lee Seok Jae Lee Tae Jung Park Min Gon Kim Bong Hyun Chung Zee-Won Lee Insung S Choi Sang Yup Lee

A novel strategy for micropatterning proteins on the surface of polyhydroxyalkanoate (PHA) biopolymer by microcontact printing (microCP) is described. The substrate binding domain (SBD) of the Pseudomonas stutzeri PHA depolymerase was used as a fusion partner for specifically immobilizing proteins on PHA substrate. Enhanced green fluorescent protein (EGFP) and red fluorescent protein (RFP) fuse...

Journal: :Metabolic engineering 1999
E B Daae P Dunnill T A Mitsky S R Padgette N B Taylor H E Valentin K J Gruys

The production of polyhydroxyalkanoates in plants is an interesting commercial prospect due to lower carbon feedstock costs and capital investments. The production of poly-(3-hydroxybutyrate) has already been successfully demonstrated in plant plastids, and the production of more complex polymers is under investigation. Using a mathematical simulation model this paper outlines the theoretical p...

Journal: :Blood 1998
A Peters D Rohloff T Kohlmann F Renner G Jantschek W Kerner H L Fehm

Ketones can reactivate the production of fetal hemoglobin (HbF) in vitro and in vivo. A reactivation of HbF by ketones, which are generated during starvation, remains largely speculative. Therefore, we investigated HbF in 31 women with anorexia nervosa or bulimia, using both of these as models of intermittent starvation ketosis. For comparison, we also studied 42 female control subjects matched...

Journal: :The Biochemical journal 1969
E J Harris J R Manger

1. The respiration of rat liver mitochondria was compared with different substrates, and with sucrose and saline media. The maximum rates of oxidation obtainable from glutamate, oxoglutarate, glutamate+malate, or succinate were higher in the saline (120mm)-tris (20mm) media than in sucrose (250mm)-tris (20mm) mixtures, but the rate with beta-hydroxybutyrate was unchanged. Addition of valinomyci...

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