Enzymology on Biodeterioration of Wood. (III). Enzymes related to Hemicellulose Biodegradation.
نویسندگان
چکیده
منابع مشابه
Biodeterioration vs Biodegradation: the Role of Microorganisms in the Removal of Pollutants Deposited on Historic Buildings
This paper describes some biodegradation processes originating from the activity of microorganisms in the black crusts of historic buildings. The crusts are mainly composed of gypsum, carbonaceous particles, and polycyclic aromatic hydrocarbons. The slowly dissolving gypsum from black crusts represents a continuous source of sulphur for microbial growth. The sulphate-bonding capacity of the she...
متن کاملBiodeterioration vs Biodegradation: the Role of Mieroorganisms in the Removal of Pollutants Deposited on Historie Buildings
INTRODUCTlON T his papc r describes sorne biodegrada tion processes onginating from ¡he activity of microorganisms in the black c rusts o f hi sto rie bui ldi ngs . T he crusts are main ly composeJ of gypsum. ca rbonaceolls particles. a nd polycyclic aromatic hydr carbo ns. T he slowly d issolv ing gypsum from black c rusts reprcscn ts a contin uo us sou rce of sulphur for microbial grow th. T ...
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Two-stage dilute acid pretreatment followed by enzymatic cellulose hydrolysis is an effective method for obtaining high sugar yields from wood residues such as softwood forest thinnings. In the first-stage hydrolysis step, most of the hemicellulose is solubilized using relatively mild conditions. The soluble hemicellulosic sugars are recovered from the hydrolysate slurry by washing with water. ...
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As wood treated with chromated copper arsenate (CCA) is removed from service, methods for eliminating toxic metals from the wood are needed. CCA-tolerant bacteria were evaluated for their ability to modify CCA-treated wood. Aerobic bacteria were isolated from a 20-year-old test plot of CCA-treated stakes. Bacteria selected for their ability to grow on nutrient agar containing CCA components, we...
متن کاملEnzymology of the wood-Ljungdahl pathway of acetogenesis.
The biochemistry of acetogenesis is reviewed. The microbes that catalyze the reactions that are central to acetogenesis are described and the focus is on the enzymology of the process. These microbes play a key role in the global carbon cycle, producing over 10 trillion kilograms of acetic acid annually. Acetogens have the ability to anaerobically convert carbon dioxide and CO into acetyl-CoA b...
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ژورنال
عنوان ژورنال: Wood Preservation
سال: 1995
ISSN: 0287-9255,1884-0116
DOI: 10.5990/jwpa.21.278