Results 271 to 280 of about 74,825 (303)

Effect of γ-Irradiation on Degradation of Alginate

Journal of Agricultural and Food Chemistry, 2003
The aqueous solution of alginate was irradiated by 60Co gamma-rays in the dose range of 10-500 kGy. To assess the effect of irradiation on the degradation of alginate, the irradiation-induced changes in the viscosity, molecular weight, color, monomer composition, and sequence were measured.
Lee, Dong Wook, Choi, Won Seok, Byun, Myung Woo, Park, Hyun Jin, Yu, Yong Man, Lee, Chong M.   +5 more
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Enzymatic degradation of alginate by marine fungi

Hydrobiologia, 1990
A total of 72 pre-selected strains of 19 species of marine fungi were tested for their ability to decompose sodium alginate, calcium alginate or freshly prepared calcium alginate gel. Active alginate decomposition was evident in 18 strains (25% of total tested).
K. Schaumann, G. Weide
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Isolation of an alginate-degrading organism and purification of its alginate lyase

Journal of Fermentation and Bioengineering, 1991
Abstract We isolated a bacterial strain, OS-ALG-9, which solubilized immobilized gel with calcium alginate in a reactor. It was identified as Pseudomonas sp. We studied the cultural conditions by using a 2.5- l jar fermentor and found that the growth and alginate-degrading enzyme production were optimal at pH 7.0 and 30°C.
Shinichi Kinoshita, Yasushi Kumoi, Atsumi Ohshima, Toshiomi Yoshida, Naoya Kasai   +4 more
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Alkaline degradation of alginates to carboxylic acids

Carbohydrate Research, 1985
Abstract Various dicarboxylic acids related to saccharinic acids, as well as several monocarboxylic acids, formed on treatment of alginates with alkali at 95° and 135° have been identified by capillary g.l.c.-m.s. Higher concentrations of alkali facilitated the formation of glucoisosaccharinaric, anhydroisosaccharinaric, and 2-deoxy-3-C ...
Klaus Niemelä, Eero Sjöström
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Chromatographic analysis of alginate degradation by five recombinant alginate lyases from Cellulophaga algicola DSM 14237

Food Chemistry, 2019
Alginate lyases can be used for alginate oligosaccharide production and for structural characterization or modification of alginates. For these applications it is important to obtain detailed information on mode of action and substrate specificities of alginate lyases.
Anja Fischer, Daniel Wefers
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Bacterial System for Alginate Uptake and Degradation

2009
Most alginate-assimilating bacteria secrete degrading enzymes, i.e., alginate lyases, into the extracellular fraction or periplasm, and incorporate the resultant alginate oligosaccharides through their cytoplasmic membrane. The Gram-negative bacterium Sphingomonas sp.
Wataru Hashimoto, Yukie Maruyama, Takafumi Itoh, Bunzo Mikami, Kousaku Murata   +4 more
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Modifying Brushite Cement Degradation Using Calcium Alginate Beads

Key Engineering Materials, 2007
The hydrolysis of brushite in calcium phosphate cements to form hydroxyapatite is known to result in the long term stability of the material in the body. It has previously been established that this hydrolysis reaction can be influenced by implant volume, media refreshment rate and media composition.
Liam M. Grover, Sarika Patel, Y. Hu, Uwe Gbureck, J.E. Barralet   +4 more
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Magnetite-Alginate Beads for Purification of Some Starch Degrading Enzymes

Molecular Biotechnology, 2002
Starch degrading enzymes, viz., beta-amylase, glucoamylase, and pullulanase, were purified using magnetite-alginate beads. In each case, the enzyme activity was eluted by using 1.0 M maltose. beta-Amylase (sweet potato), glucoamylase (Aspergillus niger), and pullulanase (Bacillus acidopullulyticus) from their crude preparations were purified 37-, 31 ...
Sunita, Teotia, M N, Gupta
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Study on degradation of alginate and crosslinking of alginate-based composite hydrogel films

2023
Incoming
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Degradable Alginate Hydrogel Intervention Catheters with Gradient Hardness in Length

Advanced Healthcare Materials
AbstractInterventional catheter, a medical device characterized by a gradient hardness from one end to the other, exhibits enhanced flexibility upon insertion into the human body. This unique configuration accommodates various anatomical structures and surgical requirements.
Bingbing Yang, Weinan Gu, Jie Pan, Lidong Zhang   +3 more
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