title: Insight into microbial mannosidases: a review.
abstract: Mannan is the major constituent of hemicelluloses in softwoods. Mannan hydrolyzing enzymes cleave the 1,4-β-mannopyranosyl linkages of the hetero-1,4-β-d-mannans to yield mannose. β-Mannosidases are mandatory for the complete depolymerization of mannan, these are exo-acting enzymes, which acts on non-reducing end of mannooligomers and on mannobiose removing mannose residues. Some plants and actinomycetes produce mannosidases but mainly these enzymes are produced by bacteria and fungi. The majority of microorganisms produce these enzymes extracellularly and their activity is in a wide range of pH and temperature. They have found potential applications in bioethanol production, synthesis of alkyl glycosides and, as pharmaceutical agents. Comprehensive information will be helpful for the effective understanding and application of these enzymes. This manuscript is an exhaustive review of microbial mannosidases reported to date. All the aspects such as sources, production conditions, characterization, cloning and biotechnological applications are considered.
authors.affiliation: a Department of Biological Sciences , Indian Institute of Science Education and Research (IISER) Mohali , Knowledge City, SAS Nagar, Mohali , India and.
authors.forename: Prakram Singh
authors.initials: PS
authors.lastname: Chauhan
authors.affiliation: b Department of Microbiology , Panjab University , Chandigarh , India.
authors.forename: Naveen
authors.initials: N
authors.lastname: Gupta
mesh_terms: D000818:Animals; D001419:Bacteria / Q000201:enzymology*; D005658:Fungi / Q000201:enzymology*; D006801:Humans; D006868:Hydrolysis; D008351:Mannans / Q000378:metabolism; D008361:Mannosidases / Q000235:genetics / Q000378:metabolism / Q000627:therapeutic use
chemical_list: D008351:Mannans; D008361:Mannosidases
keywords: Glycosides; glycoside hydrolase; hemicellulose; mannan; microbial mannosidase