Efficient enzymatic degradation process for hydrolysis activity of the Carrageenan from red algae in marine biomass

Dae Hee Kang, Jeong Eun Hyeon, Seung Kyou You, Seung Wook Kim, Sung Ok Han

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Carrageenan is a generic name for a family of polysaccharides obtained from certain species of red algae. New methods to produce useful cost-efficiently materials from red algae are needed to convert enzymatic processes into fermentable sugars. In this study, we constructed chimeric genes cCgkA and cCglA containing the catalytic domain of κ-carrageenase CgkA and λ-carrageenase CglA from Pseudoalteromonas carrageenovora fused with a dockerin domain. Recombinant strains expressing the chimeric carrageenase resulted in a halo formation on the carrageenan plate by alcian blue staining. The recombinant cCgkA and cCglA were assembled with scaffoldin miniCbpA via cohesin and dockerin interaction. Carbohydrate binding module (CBM) in scaffoldin was used as a tag for cellulose affinity purification using cellulose as a support. The hydrolysis process was monitored by the amount of reducing sugar released from carrageenan. Interestingly, these results indicated that miniCbpA, cCgkA and cCglA assembled into a complex and that the dockerin-fused enzymes on the scaffoldin had synergistic activity in the degradation of carrageenan. The observed enhancement of activity by carrageenolytic complex was 3.1-fold-higher compared with the corresponding enzymes alone. Thus, the assemblies of advancement of active enzyme complexes will facilitate the commercial production of useful products from red algae biomass which represents inexpensive and sustainable feed-stocks.

Original languageEnglish
Pages (from-to)108-113
Number of pages6
JournalJournal of Biotechnology
Volume192
Issue numberPA
DOIs
Publication statusPublished - 2014 Dec 1

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Rhodophyta
Carrageenan
Biomass
Hydrolysis
Cellulose
Enzymes
Pseudoalteromonas
Alcian Blue
Names
Polysaccharides
Catalytic Domain
Carbohydrates
Staining and Labeling
Costs and Cost Analysis
Genes

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Efficient enzymatic degradation process for hydrolysis activity of the Carrageenan from red algae in marine biomass. / Kang, Dae Hee; Hyeon, Jeong Eun; You, Seung Kyou; Kim, Seung Wook; Han, Sung Ok.

In: Journal of Biotechnology, Vol. 192, No. PA, 01.12.2014, p. 108-113.

Research output: Contribution to journalArticle

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