نتایج جستجو برای: biopolyester

تعداد نتایج: 56  

Journal: :Polymer Engineering and Science 2021

Abstract The formulation of bio‐based materials with good performance in service and controlled end‐of‐life is imperative for an effective circular economy. In this work, innovative approach to induce control the biodegradable polyesters through introduction crosslinked polysaccharide particles proposed. Chitosan (Ch) has been subjected ionotropically crosslinking then added polylactic acid (PL...

Journal: :Journal of Experimental Botany 2008
Rene Höfer Isabel Briesen Martina Beck Franck Pinot Lukas Schreiber Rochus Franke

The lipophilic biopolyester suberin forms important boundaries to protect the plant from its surrounding environment or to separate different tissues within the plant. In roots, suberin can be found in the cell walls of the endodermis and the hypodermis or periderm. Apoplastic barriers composed of suberin accomplish the challenge to restrict water and nutrient loss and prevent the invasion of p...

Journal: :Plant Physiology and Biochemistry 2021

Barrier properties of the hydrophobic plant cuticle depend on its physicochemical composition. The cuticular compounds vary considerably among species but also organs and tissues same throughout developmental stages. As yet, these intraspecific modifications at wax cutin level are only rarely examined. Attempting to further elucidate profiles, we analysed adaxial abaxial surfaces sclerophyllous...

Journal: :Applied sciences 2022

The present study focuses on the preparation and characterization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films that were reinforced with cellulose microstructures to obtain new green composite materials for sustainable food packaging applications. atomization suspensions microfibrillated (MFC) successfully allowed formation ultrathin structures nearly 3 µm were, thereafter, melt...

Journal: :Current issues in molecular biology 2007
Bernd H A Rehm

Biopolyester (PHAs = polyhydroxyalkanoates) composed of hydroxy fatty acids represent a rather complex class of storage polymers synthesized by various eubacteria and archaea and are deposited as water-insoluble cytoplasmic nano-sized inclusions. These spherical shell-core particles are composed of a polyester core surrounded by phospholipids and proteins. The key enzymes of polyester biosynthe...

Journal: :Applied and environmental microbiology 2013
David O Hooks Paul A Blatchford Bernd H A Rehm

N-Acetylneuraminic acid is produced by alkaline epimerization of N-acetylglucosamine to N-acetylmannosamine and then subsequent condensation with pyruvate catalyzed by free N-acetylneuraminic acid aldolase. The high-alkaline conditions of this process result in the degradation of reactants and products, while the purification of free enzymes to be used for the synthesis reaction is a costly pro...

Journal: :Biophysical journal 2000
A N Round B Yan S Dang R Estephan R E Stark J D Batteas

Atomic force microscopy and solid-state nuclear magnetic resonance have been used to investigate the effect of water absorption on the nanoscale elastic properties of the biopolyester, cutin, isolated from tomato fruit cuticle. Changes in the humidity and temperature at which fruits are grown or stored can affect the plant surface (cuticle) and modify its susceptibility to pathogenic attack by ...

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