Results 1 to 10 of about 18,639,392 (237)

Fabrication and Degradation of Electrospun Polyhydroxyalkanoate Film [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2015
Polyhydroxyalkanoates (PHAs) are a family of biopolymers with good biodegradability. Poly(3- hydroxybutyrate) [P(3HB)], poly(3-hydroxybutyrate-co-25 mol % 4-hydroxybutyrate) [P(3HBco- 25 mol % 4HB)] and poly(3-hydroxybutyrate-co-75 mol % 4 ...
Lee Joyyi, Nanthini Sridewi, Amirul Al-Ashraf Abdullah, Ken-ichi Kasuya, Kumar Sudesh   +4 more
doaj  

Study on the Effect of Levulinic Acid on Whey-Based Biosynthesis of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by Hydrogenophaga pseudoflava

Applied Food Biotechnology, 2017
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.
Martin Koller, Paula Hesse, Hubert Fasl, Franz Stelzer, Gerhart Braunegg   +4 more
doaj   +1 more source

Synthesis and Characterization of a Three Component Polyhydroxyalkanoates Containing Medium-Chain-Length Monomers of 3-Hydroxyhexanoate [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2016
The synthesis of poly(3-hydroxybutyrate/3-hydroxyvalerate/3-hydroxyhexanoate) [P(3HB/3HV/3HHx)] and poly(3-hydroxybutyrate/3-hydroxyhexanoate/diethylene glycol) [P(3HB/3HHx/DEG)] by Cupriavidus eutrophus B10646 was studied.
Daria A. Syrvacheva, Natalia O. Zhila
doaj  

Coastal and deep-sea biodegradation of polyhydroxyalkanoate microbeads

Scientific Reports
Microbeads find widespread usage in personal care items and cosmetics, serving as exfoliants or scrubbing agents. Their micro-scale size poses challenges in effective drainage capture and given their origin from non-biodegradable oil-based plastics, this
Natsumi Hyodo, Hongyi Gan, Manikandan Ilangovan, Satoshi Kimura, Ken-ichi Kasuya, Noriyuki Isobe, Tadahisa Iwata   +6 more
doaj   +1 more source

Degradation of polyhydroxyalkanoate films in brackish Lake Shira [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2012
The degradation of polyhydroxyalkanoate films was firstly studied in brackish Lake Shira at different depths, 3, 9, 13 and 20 meters, those corresponded to the layers of stratification.
Natalia O. Zhila, Svetlana V. Prudnikova, Egor S. Zadereev, Denis Yu. Rogozin   +3 more
doaj  

Estimation of PHA concentrations from cell density data in Cupriavidus necator

Applied Microbiology and Biotechnology
The production of biodegradable and biobased polymers is one way to overcome the present plastic pollution while using cheap and abundant feedstocks.
Lena Kranert, Rudolph Kok, Anna-Sophie Neumann, Achim Kienle, Stefanie Duvigneau   +4 more
doaj   +1 more source

Microbial Synthesis and Characterization of Poly (3-Hydroxybutyrate-co- 4-Hydroxybutyrate) Copolymers [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2011
The research is focused on the prospective representative of the family of biodegradable polymers - polyhydroxyalkanoates (PHAs), the copolymer poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3HB-co-4HB).
Natalia O. Zhila, Tatiana G. Volova, Elena D. Nikolaeva, Daria A. Syrvacheva   +3 more
doaj  

Disruption of poly (3-hydroxyalkanoate) depolymerase gene and overexpression of three poly (3-hydroxybutyrate) biosynthetic genes improve poly (3-hydroxybutyrate) production from nitrogen rich medium by Rhodobacter sphaeroides

Microbial Cell Factories, 2019
Background Due to various environmental problems, biodegradable polymers such as poly (3-hydroxybutyrate) (PHB) have gained much attention in recent years.
Jyumpei Kobayashi, Akihiko Kondo
doaj   +1 more source

SEPARATE FEED OF TYPE I COLLAGEN SOLUTION AND POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)/POLY(ε-CAPROLACTONE) BLEND DURING ELECTROSPINNING INCREASES BIOCOMPATIBILITY OF VASCULAR GRAFTS: IN VITRO TESTING

Фундаментальная и клиническая медицина, 2017
Aim. To compare structural and tensile properties of electrospun vascular grafts fabricated of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/ poly(ε-caprolactone) blend and type I collagen solution utilizing either joint or separate feed of these polymers,
ELENA A. Velikanova, LARISA V. Antonova, VICTORIA V. Sevostyanova, ANTON G. Kutikhin, TATIANA V. Glushkova, VERA G. Matveeva, EVGENIYA O. Krivkina, OLGA L. Barbarash, LEONID S. Barbarash   +8 more
doaj  

The effect of gamma radiation on mechanical properties of biodegradable polymers poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Materials Research, 2013
Brazilian poly(3-hydroxybutyrate), P(3-HB), and its copolymer, poly (3-hydroxybutyrate-co-3-hydroxyvalerate), P(3-HB-co-3-HV) were irradiated with gamma radiation (60Co) at room temperature and in the presence of oxygen. The viscosity-average molar mass (
Leticia Maria Oliveira, Patricia Lopes Barros Araujo, Elmo Silvano Araujo   +2 more
doaj