Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Stefan Willför"'
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 9 (2021)
Hydrogels with ion exchange properties were synthesized from compounds derived from wood biopolymer hemicellulose and from commercial vinyl monomers to be tested as active materials for the removal of Cu(II), Cr(VI), and As(V) ions. The hemicellulose
Externí odkaz:
https://doaj.org/article/4208b0cf4b3c482c81e468dc956d30df
Publikováno v:
BioResources, Vol 11, Iss 1, Pp 2809-2819 (2016)
Arbutus andrachne and Platanus orientalis grow naturally in Turkey. They do not occur in stands but can be seen as solitary trees. A. andrachne is seen in coastal parts of Anatolia, whereas P. orientalis can be found from west to the east of Turkey,
Externí odkaz:
https://doaj.org/article/1439ad29109044e7aede25415da30322
Publikováno v:
Biomolecules, Vol 10, Iss 10, p 1363 (2020)
Hazelnut (HS) and walnut (WS) shells, an abundant by-product of the processing industries of these edible nuts, are traditionally considered as a low-value waste. However, they are a source of valuable compounds with an interesting chemical profile f
Externí odkaz:
https://doaj.org/article/0c7e569737454c2aade6657709cea7fa
Autor:
Kerstin Wagner, Maurizio Musso, Stefan Kain, Stefan Willför, Alexander Petutschnigg, Thomas Schnabel
Publikováno v:
Polymers, Vol 12, Iss 2, p 359 (2020)
Many of current bio-based materials are not fully or partly used for material utilization, as the composition of their raw materials and/or possible applications are unknown. This study deals with the analysis of the wood extractives from three diffe
Externí odkaz:
https://doaj.org/article/b9579d50c64142248e38697c750347c6
Autor:
Lucas Lagerquist, Andrey Pranovich, Ivan Sumerskii, Sebastian von Schoultz, Lari Vähäsalo, Stefan Willför, Patrik Eklund
Publikováno v:
Molecules, Vol 24, Iss 2, p 335 (2019)
In this work we have analyzed the pine and spruce softwood lignin fraction recovered from a novel pressurized hot water extraction pilot process. The lignin structure was characterized using multiple NMR techniques and the thermal properties were ana
Externí odkaz:
https://doaj.org/article/315dcb45bd3c4ea1ae8772803ea01664
Autor:
Grzegorz D. Bujacz, Rainer Sjöholm, Patrik Eklund, Wiesław R. Majzner, Stefan Willför, Izabela Redzynia, Natasza E. Ziółkowska
Publikováno v:
Molecules, Vol 14, Iss 10, Pp 4147-4158 (2009)
X-ray structures of two compounds isolated from wood knots of coniferous trees, namely dihydrokaempferol (3,5,8,13-tetrahydroxyflavanon) and lariciresinol (3,14-dimetoxy-7,10-epoxylignan-4,15,19-triol), are presented here. Diffraction data for the Di
Externí odkaz:
https://doaj.org/article/937fbb66978f4149ab170fce38ccd330
Autor:
Maija-Liisa Mattinen, Karin Struijs, Tapani Suortti, Ismo Mattila, Kristiina Kruus, Stefan Willför, Tarja Tamminen, Jean-Paul Vincken
Publikováno v:
BioResources, Vol 4, Iss 2, Pp 482-496 (2009)
Oxidative polymerization of two isolated lignans, secoisolariciresinol, and secoisolariciresinol diglucoside, as well as the lignan macromolecule, by a high redox potential Trametes hirsuta laccase was studied with different analytical methods. The r
Externí odkaz:
https://doaj.org/article/9a85eac2e0c64081929c4644efebb3b9
Publikováno v:
BioResources, Vol 3, Iss 3, Pp 713-730 (2008)
Spruce galactoglucomannan is a wood-derived polysaccharide with a modest molar mass that has recently been made available in kg-scale for research and development of value-added products. To promote the application of spruce galactoglucomannans in, f
Externí odkaz:
https://doaj.org/article/da4905a026ec4f9f9961b17d2869d878
Autor:
Kirsi S. Mikkonen, Madhav P. Yadav, Peter Cooke, Stefan Willför, Kevin B. Hicks, Maija Tenkanen
Publikováno v:
BioResources, Vol 3, Iss 1, Pp 178-191 (2008)
The improvement of mechanical properties of spruce galactoglucomannan (GGM)-based films was sought by blending GGM with each of poly(vinyl alcohol) (PVOH), corn arabinoxylan (cAX), and konjac glucomannan (KGM). The blend ratios were 3:1, 1:1, and 1:3
Externí odkaz:
https://doaj.org/article/ac69337351c64286b4e2f22b606cc076
Autor:
Bjarne Holmbom, Stefan Willför, Laura Pérez-Fons, Vicente Micol, Madalina Neacsu, Ricardo Mallavia
Publikováno v:
Molecules, Vol 12, Iss 2, Pp 205-217 (2007)
The complete characterization of two compounds obtained from the acetoneextract of Populus tremula knotwood has been was achieved using LC-DAD-MS,MS/MS, IR and NMR. The new compounds were unequivocally identified as a mixtureof the ester isomers of t
Externí odkaz:
https://doaj.org/article/482b3b5d2be1434596cd7b6db8b3e155