期刊
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷 99, 期 2, 页码 611-622出版社
SPRINGER
DOI: 10.1007/s00253-014-6242-1
关键词
Pyroligneous acid; Wood vinegar; Plant biomass; Chemical constituents and phenolics
资金
- Universiti Teknologi Malaysia (UTM)
- UTM [Q.J130000.2509.03H84, 06H37]
- Ministry of Higher Education (MOHE)
- Malaysian Pineapple Industry Board [4B072, 4B096]
Pyroligneous acid (PA) is a complex highly oxygenated aqueous liquid fraction obtained by the condensation of pyrolysis vapors, which result from the thermochemical breakdown or pyrolysis of plant biomass components such as cellulose, hemicellulose, and lignin. PA produced by the slow pyrolysis of plant biomass is a yellowish brown or dark brown liquid with acidic pH and usually comprises a complex mixture of guaiacols, catechols, syringols, phenols, vanillins, furans, pyrans, carboxaldehydes, hydroxyketones, sugars, alkyl aryl ethers, nitrogenated derivatives, alcohols, acetic acid, and other carboxylic acids. The phenolic components, namely guaiacol, alkyl guaiacols, syringol, and alkyl syringols, contribute to the smoky odor of PA. PA finds application in diverse areas, as antioxidant, antimicrobial, antiinflammatory, plant growth stimulator, coagulant for natural rubber, and termiticidal and pesticidal agent; is a source for valuable chemicals; and imparts a smoky flavor for food.
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