Results 141 to 150 of about 77,524 (182)
Marine Drugs, 2016 Enzymatic hydrolysis of sodium alginate to produce alginate oligosaccharides has drawn increasing attention due to its advantages of containing a wild reaction condition, excellent gel properties and specific products easy for purification.
Benwei Zhu, Heng Yin, Meijuan Chen
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Characteristics and applications of alginate lyases: A review
International Journal of Biological Macromolecules, 2020Brown algae, as the main source of alginate, are a type of marine biomass with a very high output. Alginate, a polysaccharide composed of β-D-mannuronic acid (M) and α-L-guluronic acid (G), has great potential for applications in the food, cosmetic and pharmaceutical industries. Alginate lyases (Alys) can degrade alginate polymers into oligosaccharides
Danyang, Cheng +4 more
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Bacterial alginate lyase highly active on acetylated alginates
Journal of Fermentation and Bioengineering, 1993Abstract A bacterium (strain A1) isolated from a ditch synthesized three kinds of intracellular alginate lyases: A1-I (molecular weight [M.W.] 60,000), A1-II-1 (M.W. 60,000) and A1-II-2 (M.W. 25,000) in laboratory-scale cultures. However, when cells of strain A1 were grown on an industrial scale, another lyase (A1-III) was produced other than A1-I ...
Tomohiro Hisano +7 more
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Journal of Fermentation and Bioengineering, 1991
Abstract Two kinds of bacteria producing alginate lyase were isolated from ditch sample and they were designated A-1 and A-2 strains. Morphological and physiological properties of the two strains were closely similar to each other, except that the cells of strain A-1 showed flocculation during growth on a medium containing alginate as a carbon source.
Yoshimasa Yonemoto +4 more
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Abstract Two kinds of bacteria producing alginate lyase were isolated from ditch sample and they were designated A-1 and A-2 strains. Morphological and physiological properties of the two strains were closely similar to each other, except that the cells of strain A-1 showed flocculation during growth on a medium containing alginate as a carbon source.
Yoshimasa Yonemoto +4 more
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Kinetics and specificity of alginate lyases
Hydrobiologia, 1993A purified preparation of the extracellular alginate lyase has been used to study kinetics and specificity towards purified, homopolymeric fragments of alginate. The enzyme preparation from Bacillus circulans 1351 degraded both block types, although with different efficiency, and thus appears to be nonspecific.
Bj�rn Larsen +2 more
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International Journal of Biological Macromolecules, 2020
Alginate lyases are important enzymes to prepare alginate oligosaccharides for industrial applications and elucidating the degradation pattern of alginate lyases is essential for expanding their applications. Herein, we cloned and expressed AlyPL6, a novel member of polysaccharide lyase family-6 (PL6) with high activity from Pedobacter hainanensis NJ ...
Benwei Zhu, Zhong Yao, Fang Ni
exaly +3 more sources
Alginate lyases are important enzymes to prepare alginate oligosaccharides for industrial applications and elucidating the degradation pattern of alginate lyases is essential for expanding their applications. Herein, we cloned and expressed AlyPL6, a novel member of polysaccharide lyase family-6 (PL6) with high activity from Pedobacter hainanensis NJ ...
Benwei Zhu, Zhong Yao, Fang Ni
exaly +3 more sources
Alginate production by an Azotobacter vinelandii mutant unable to produce alginate lyase
Applied Microbiology and Biotechnology, 2003Alginate is an industrially relevant linear copolymer composed of beta-1,4-linked D-mannuronic acid and its C-5 epimer L-guluronic acid. The rheological and gel-forming properties of alginates depend on the molecular weight and the relative content of the two monomers. Alginate produced by Azotobacter vinelandii was shown to be degraded towards the end
M A, Trujillo-Roldán +4 more
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World Journal of Microbiology and Biotechnology, 2007
The alyPEEC gene encoding alginate lyase from marine bacterium Pseudoalteromonas elyakovii IAM 14594 was subcloned into pBAD24 with arabinose promoter and sequenced, and overexpressed in TOP10 strain of E. coli after arabinose induction. Expression levels of alyPEEC gene in E. coli cells were over 39.6-fold higher than those in P.
L. Y. Ma, Z. M. Chi, J. Li, L. F. Wu
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The alyPEEC gene encoding alginate lyase from marine bacterium Pseudoalteromonas elyakovii IAM 14594 was subcloned into pBAD24 with arabinose promoter and sequenced, and overexpressed in TOP10 strain of E. coli after arabinose induction. Expression levels of alyPEEC gene in E. coli cells were over 39.6-fold higher than those in P.
L. Y. Ma, Z. M. Chi, J. Li, L. F. Wu
openaire +1 more source