Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Neoli Lucyszyn"'
Property evaluations of dry-cast reconstituted bacterial cellulose/tamarind xyloglucan biocomposites
Autor:
Maria Rita Sierakowski, Marco Aurelio Woehl, Neoli Lucyszyn, Redouane Borsali, Izabel C. Riegel-Vidotti, Clayton F. de Souza
Publikováno v:
Carbohydrate Polymers. 93(1):144-153
We describe the mechanical defibrillation of bacterial cellulose (BC) followed by the dry-cast generation of reconstituted BC films (RBC). Xyloglucan (XGT), extracted from tamarind seeds, was incorporated into the defibrillated cellulose at various c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65b2d4d0c8b3ccd30e76f3d87a914024
Publikováno v:
Carbohydrate polymers. 153
Guar (GG) and locust bean (LBG) galactomannans (GMs) oxidation at C-6 was performed with catalyst TEMPO, in which the reaction progress was monitored by consume of NaOH solution. The products were characterized by spectroscopic analysis, infrared, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50b4042697353921815c4b44854ce636
https://pubmed.ncbi.nlm.nih.gov/27561508
https://pubmed.ncbi.nlm.nih.gov/27561508
Autor:
Maria Rita Sierakowski, Neoli Lucyszyn, Clayton F. de Souza, Adriana F. Lubambo, Tatiane A. Jó, Lucy Ono
Publikováno v:
Food Hydrocolloids. 25(5):1242-1250
A water-soluble polysaccharide was obtained from Guibourtia hymenifolia seeds in a 54.2% yield (w/w). The Glc:Xyl:Gal molar ratio was 3.3:2.3:1. The methylation results and 1D/2D NMR spectra indicated the presence of xyloglucan (XG), the intrinsic vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e7d87c0b4a600d861bd4256ba11084f
Autor:
Paulo César de Camargo, Neoli Lucyszyn, M.-R. Sierakowski, Cesar Liberato Petzhold, Cyro Ketzer Saul, Wido H. Schreiner, Adriana F. Lubambo
Publikováno v:
Carbohydrate Polymers. 84:126-132
Thin polystyrene–polysaccharide films were deposited on mica by spin coating evaporating mixtures. Solutions of PS (polystyrene) in chloroform (15, 30 and 60 mg/L) and XG (xyloglucan) in water (15 mg/L) were prepared and mixed by stirring in differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4245d65f4689b7858849ec90ed77c0c8
https://doi.org/10.1016/j.carbpol.2010.11.010
https://doi.org/10.1016/j.carbpol.2010.11.010
Autor:
Clayton F. de Souza, Adriana F. Lubambo, Maria Rita Sierakowski, Francine Valenga, Lucy Ono, Neoli Lucyszyn
Publikováno v:
Macromolecular Symposia. :99-106
In this work, the rheological properties of the partial replacement of sodium alginate (AL) by galactomannan extracted from the seeds of L. leucocephala (GML), with or without the presence of calcium ions, were evaluated. The viscoelastic behaviour o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81e48731927288c4000e2f70ef3acbe3
https://doi.org/10.1002/masy.200900096
https://doi.org/10.1002/masy.200900096
Publikováno v:
Macromolecular Symposia. :66-73
Carboxyl (GMOX) and carboxyl-aminoalkylated derivatives (GMOXD) of galactomannan (GM), extracted from the seeds of Caesalpinia ferrea (Pau-ferro; Brazilian Ironwood), were synthesised by selective modification of the polysaccharide at the C-6 positio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eff4c2f5d19129dd8ce1aaef1d08bcd
https://doi.org/10.1002/masy.200900098
https://doi.org/10.1002/masy.200900098
Publikováno v:
Carbohydrate Polymers. 82:641-647
The hydrocolloid extracted from Caesalpinia ferrea var. ferrea seeds purified by membrane filtration was denominated GMPF (14% yield) and contained 75% total carbohydrate and 9% protein, and the mannose to galactose (Man:Gal) ratio was around to 2.1:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::594a40d6ef74892a120e075dbf0a7c3a
https://doi.org/10.1016/j.carbpol.2010.05.031
https://doi.org/10.1016/j.carbpol.2010.05.031
Autor:
Clayton F. de Souza, Adriana F. Lubambo, Neoli Lucyszyn, I. Marvilla, Maria Rita Sierakowski, K.F. Matos
Publikováno v:
Materials Science and Engineering: C. 29:552-558
In this work, xyloglucan extracted from the seeds of Hymenaea courbaril (jatoba) collected in Rancho Alegre, Parana, Brazil (JRAXG), was oxidized at the C-6 position of galactose or glucose units, using 2,3,6,6-tetramethylpiperidine-1-oxyl, to form u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8e139a8caa9bb7b2abb0fbde7c6cbd9
https://doi.org/10.1016/j.msec.2008.10.001
https://doi.org/10.1016/j.msec.2008.10.001
Autor:
C.F. de Souza, Ciro Alberto de Oliveira Ribeiro, M.R. Gouvêa, Maria Rita Sierakowski, Neoli Lucyszyn, I. Marvila-Oliveira
Publikováno v:
Materials Science and Engineering: C. 29:607-612
In this work the rheological behavior of manioc starch (S) industrially modified and its blends with a xyloglucan (XG) in the presence of tetraborate (T) ions at pH 12 was described. At rotational measurements the viscosity values showed a good inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65da8e3b31b1a82450dbff80dea97734
https://doi.org/10.1016/j.msec.2008.10.019
https://doi.org/10.1016/j.msec.2008.10.019
Autor:
Denise Freitas Siqueira Petri, Francine Valenga, Maria Rita Sierakowski, Tatiane A. Jó, Neoli Lucyszyn
Publikováno v:
Materials Science and Engineering: C. 29:631-637
In this work, XG extracted from Tamarindus indica (XGT) and Copaifera langsdorffii (XGC) seeds were deposited onto Si wafers as thin films. The characteristics of XGT and XGC adsorbed layers were compared with a commercial XG sample (TKP, Tamarind ke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c66379ffa460aef2eea6bb8db901b70
https://doi.org/10.1016/j.msec.2008.10.035
https://doi.org/10.1016/j.msec.2008.10.035