title: Poly R decolorization and APPL production by Streptomyces violaceoruber and Streptomyces spiroverticillatus.
abstract: Two mesophilic streptomycetes (S. violaceoruber and S. spiroverticillatus) were selected to study their Poly R-478 decolorization ability and lignocellulose solubilizing activity. Both strains were able to degrade Poly R-478 dye and ferulic acid during growth on a minimal salts medium. The Poly R-478 decolorizing activities of both strains were induced by adding different carbon sources to the culture media. S. violaceoruber could decolorize 63% of Poly R-478 after 24 h. Both strains could solubilize straw and produce acid-precipitable polymeric lignin (APPL) with different efficiency. From the major extracellular enzymes recovery of both strains on rice and wheat straw, we can predicate that the biodegradation process was partial indicating a possible utilization in biological delignification.
authors.affiliation: Botany Department Faculty of Science Damietta University Damietta Egypt Botany Department, Faculty of Science, Damietta University, Damietta, Egypt.
authors.forename: M I
authors.initials: MI
authors.lastname: Abou-Dobara
authors.affiliation: Botany Department Faculty of Science Damietta University Damietta Egypt Botany Department, Faculty of Science, Damietta University, Damietta, Egypt.
authors.forename: N F
authors.initials: NF
authors.lastname: Omar
mesh_terms: D000880:Anthraquinones / Q000378:metabolism*; D001711:Biotransformation; D003373:Coumaric Acids / Q000378:metabolism; D003470:Culture Media / Q000737:chemistry; D008031:Lignin / Q000378:metabolism*; D012275:Oryza / Q000378:metabolism; D018547:Plant Stems / Q000378:metabolism; D011108:Polymers / Q000378:metabolism*; D013302:Streptomyces / Q000254:growth & development / Q000378:metabolism*; D014908:Triticum / Q000378:metabolism
chemical_list: D000880:Anthraquinones; D003373:Coumaric Acids; D003470:Culture Media; D011108:Polymers; C036909:lignocellulose; C017971:poly R-478; D008031:Lignin; C004999:ferulic acid
keywords: APPL; Poly-R decolorization; Streptomyces; ferulic acid degradation