نتایج جستجو برای: depolymerisation

تعداد نتایج: 258  

2015
Setsuri Yokoi Naoko Ishihara Fuyuki Miya Makiko Tsutsumi Itaru Yanagihara Naoko Fujita Hiroyuki Yamamoto Mitsuhiro Kato Nobuhiko Okamoto Tatsuhiko Tsunoda Mami Yamasaki Yonehiro Kanemura Kenjiro Kosaki Seiji Kojima Shinji Saitoh Hiroki Kurahashi Jun Natsume

TUBA1A mutations cause a wide spectrum of lissencephaly and brain malformations. Here, we report two patients with severe cortical dysgeneses, one with an extremely thin cerebral parenchyma apparently looking like hydranencephaly and the other with lissencephaly accompanied by marked hydrocephalus, both harbouring novel de novo missense mutations of TUBA1A. To elucidate how the various TUBA1A m...

Journal: :Berichte der deutschen chemischen Gesellschaft (A and B Series) 1921

Journal: :Linköping electronic conference proceedings 2022

Municipal wastewater consists of a large fraction particulate organic matter. During biological treatment these particles undergo extracellular depolymerisation before products are taken up by bacteria (MW < 0.6 kDa). Particle degradation and intermediate formation dynamics is important in process analysis as the transport regime differ. This work aims to develop model for particle that incl...

2011
Richard J.A. Gosselink J.E.G. van Dam E. de Jong G. Gellerstedt E. L. Scott J.P.M. Sanders

Valorisation of lignin plays a key role in the further development of biorefinery processes for biofuels and the production of biobased materials from lignocellulosic biomass. Today’s increased demand for alternatives to fossil carbon based products, such as the production of transportation biofuels and bulk “green” chemicals, expands the interest and the need to create added value to the uncon...

Journal: :Youth STEM matters 2022

Polyethylene terephthalate (PET) is one of the world’s most used plastics. Amenable to both mechanical and chemical recycling processes, PET also commonly recycled. Chemical processes include glycolysis, which produces bis(2-hydroxyethyl) (BHET); this then re-polymerised form new PET. One novel method for glycolysis involves microwave irradiation water bottles in presence a catalyst and, notabl...

2018

Lignin depolymerisation has received considerable attention recently due to the pressing need to find sustainable alternatives to fossil fuel feedstock to produce chemicals and fuels. Two types of interunit linkages (C–C and C–O linkages) link several aromatic units in the structure of lignin. Between these two inter-unit linkages, the bond energies of C–C linkages are higher than that of C–O l...

2015
Gordon A. Morris Jonathan Castile Alan Smith Gary G. Adams Stephen E. Harding

The stability (in terms of viscosity and gel strength) of pectin solutions and gels potentially plays an important role in their behaviour and functional properties in a wide range of applications and therefore any changes over time must be understood. The gel strength of pectin gels and intrinsic viscosity of pectin solutions at different temperatures (4°C, 25°C and 40°C) have been investigati...

Journal: :Annals of the rheumatic diseases 1991
H Saari

High performance liquid chromatography with TSK 5000 PW or TSK 6000 PW size exclusion columns combined with a 125I labelled hyaluronic acid binding protein assay was used to study the effects of oxygen derived free radicals on synovial fluid hyaluronate. A continuous flux of free radicals was generated by the xanthine oxidase/hypoxanthine system. When the free radical flux was generated with xa...

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