نتایج جستجو برای: 3 β hydroxybutyrate
تعداد نتایج: 1959602 فیلتر نتایج به سال:
background and objective: production of polyhydroxyalkanoate copolyesters consisting of 3-hydroxybutyrate and 3-hydroxyvalerate units was for the first time studied using the production strain hydrogenophaga pseudoflava based on sustainable raw materials. this strategy provides for increased cost efficiency in pha production and in enhanced material quality. material and methods: as a particula...
Ilyobacter polytropus Stieb and Schink 1984 is the type species of the genus Ilyobacter, which belongs to the fusobacterial family Fusobacteriaceae. The species is of interest because its members are able to ferment quite a number of sugars and organic acids. I. polytropus has a broad versatility in using various fermentation pathways. Also, its members do not degrade poly-β-hydroxybutyrate but...
BACKGROUND AND PURPOSE The ketogenic diet was formulated to mimic the biochemical changes seen upon fasting, specifically the formation of ketone bodies. Recent research data suggest that the anticonvulsant efficacy of the KD may be due in part to the direct actions of ketone bodies. This study was designed to investigate the anticonvulsant effects of β-hydroxybutyrate (BHB) on pilocarpine-indu...
The microbial degradation of tensile test pieces made of poly(3-hydroxybutyrate) [P(3HB)] or a copolymer of 90% 3-hydroxybutyric acid and 10% 3-hydroxyvaleric acid was studied in soils incubated at a constant temperature of 15, 28, or 40 degrees C for up to 200 days. In addition, hydrolytic degradation in sterile buffer at temperatures ranging from 4 to 55 degrees C was monitored for 98 days. D...
Very few studies have been dedicated to R-hydroxyacids (R-HA) production using extracellular polyhydroxyalkanoate depolymerases (ePhaZs). Penicillium expansum produced maximum extracellular polyhydroxybutyrate depolymerase (~6 U/mL) by 72 h when grown in mineral salt medium containing 0.2 % w/v PHB, pH 5.0, at 30 °C and 200 rpm shaking conditions. Partial purification of the extracellular poly(...
The thermal degradation behavior of poly[(R)-3-hydroxybutyrate-co-16 mol%-4-hydroxybutyrate] (P(3HB-co-16 mol%-4HB)) was investigated based on spectroscopic analysis its pyrolyzates and two kinetic modeling approaches. Pyrolyzate revealed that trans-crotonic acid, cis-crotonic γ-butyrolactone, their oligomers (dimers trimers) were produced following P(3HB-co-16 mol%-4HB). analyses confirmed the...
BACKGROUND Hypoglycemic effects of grapefruit juice are well known but the effects of naringin, its main flavonoid on glucose intolerance and metabolic complications in type 1 diabetes are not known. OBJECTIVES To investigate the effects of naringin on glucose intolerance, oxidative stress and ketonemia in type 1 diabetic rats. METHODS Sprague-Dawley rats divided into 5 groups (n = 7) were ...
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