Results 161 to 170 of about 480,266 (218)

Comparative Evaluation of Different Blood Collection Sites for the Assessment of Beta-Hydroxybutyric Acid Concentrations Using a Handheld Meter in Sheep. [PDF]

Vet Med Sci
Akköse M, Kaya U, Yazlik MO, Göcen M, Vural MR.   +4 more
europepmc   +1 more source

A Multi-Functional Heterogeneous Biocatalyst for the Oxygen-Free Oxidative Condensation of Primary Alcohols into β‑Hydroxy Acids. [PDF]

ACS Catal
Orrego AH, López IL, Andrés-Sanz D, Fernandez-Pelayo U, Iturralde M, López-Gallego F.   +5 more
europepmc   +1 more source

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A chemical degradation of 3-hydroxybutyric acid

Analytical Biochemistry, 1978
Abstract A method is described for degrading 3-hydroxybutyric acid to obtain specifically and in good yield each of its carbons as CO 2 . The hydroxybutyrate is dehydrated to crotonic acid which is reduced to butyric acid. The butyric acid is then degraded stepwise utilizing the Schmidt reaction.
W C, Schumann, K, Kumaran, B R, Landau
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Preparation of alkyl (R)-(−)-3-hydroxybutyrate by acidic alcoholysis of poly-(R)-(−)-3-hydroxybutyrate

Enzyme and Microbial Technology, 2000
An efficient method for the preparation of optically active alkyl (R)-(-)-3-hydroxybutyrates by chemical depolymerization of biopolymer, poly-(R)-(-)-(3-hydroxybutyrate), was established. This method consists of simple recovery of poly-(R)-(-)-(3-hydroxybutyrate) from bacterial cells followed by acidic alcoholysis. When poly-(R)-(-)-(3-hydroxybutyrate)
, Lee, , Park, , Lim, , Han, , Lee
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Enzymatic esterification of 3-hydroxybutyric acid

Biotechnology Letters, 1993
Candida cylindracea lipase catalysed esterification of (±)-3-hydroxybutyric acid (1) with n-butanol was studied in different solvents. This provided an alternative preparative method for the versatile chiron. butyl (S)-3-hydroxybutyrate (2) via kinetic resolution of (±)-1 With toluene as the reaction medium, the enantioselection was found to be ...
S. Chattopadhyay, V. R. Mamdapur
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Biotechnological production of (R)-3-hydroxybutyric acid monomer

Journal of Biotechnology, 2007
The escalating problems regarding the treatment of plastic waste materials have led to development of biodegradable plastics. At present, a number of aliphatic polyesters; such as poly[(R)-3-hydroxybutyrate] (PHB), poly(l-lactide), polycaplolactone, poly(ethylene succinate) and poly(butylene succinate) have been developed.
Yutaka, Tokiwa, Charles U, Ugwu
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Omega oxidation of fatty acids and the pathway of 3-hydroxybutyric acid formation

Archives of Biochemistry and Biophysics, 1978
Abstract Pathways followed by the carbons of long chain fatty acids in their conversion to 3-hydroxybutyric acid were traced and the contribution of ω-oxidation to fatty acid oxidation was determined in the cellular environment where ketone body formation occurs.
W C, Schumann, E, Hemmelgarn, B R, Landau   +2 more
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Catalyst-free valorization of poly-3-hydroxybutyrate to crotonic acid

Reaction Chemistry & Engineering, 2021
A novel catalyst-free valorization process of PHB to CA in inert nonpolar solvents is developed. CA was obtained with a yield of 89 wt% and a purity of 91% via a simple consecutive process of pyrolysis at 210 °C and vacuum distillation at 60 °C.
Shimin Kang, Rujie Chen, Jinxia Fu, Jianhao Liang, Suxia Chen, Lijun Lu, Rongrong Miao   +6 more
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Accumulation of Poly (3-Hydroxybutyric Acid) by Some Soil Streptomyces

Current Microbiology, 1999
In a limited-scale survey, 55 soil streptomycetes were screened for the accumulation of poly (3-hydroxybutyrate) [PHB]. Only 18% of the isolates accumulated PHB ranging between 1.9-7.8% of the dry biomass. The promising isolate DBCC-719, identified as Streptomyces griseorubiginosus, accumulated PHB amounting to 9.5% of the mycelial dry mass in the ...
A, Manna, R, Banerjee, A K, Paul
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