title: The kinetics of nicotine degradation, enzyme activities and genotoxic potential in the characterization of tobacco waste composting.
abstract: This study aimed to determine nicotine biodegradation and the genotoxic potential of nicotine and its degradation products during the process of tobacco waste composting. Composting was carried out using two methods, i.e. the addition of 20% (bioreactor A) or 40% tobacco wastes to sewage sludge (bioreactor B) and control--sewage sludge (bioreactor C). Wheat straw was used as a structure-forming material. As a result of composting the contents of C and N in the bioreactors changed, the C:N ratio in bioreactor A changed from 22.8 to 13.00, and that in bioreactor B changed from 23.5 to 12.00. After composting, the biodegradation rate of nicotine was 78% in bioreactor A and 80% in bioreactor B, respectively. Using the Ames test it was shown that the composts produced did not exhibit mutagenicity.
authors: University of Life Sciences in Poznań, Institute of Food Technology of Plant Origin, Wojska Polskiego St. 31, 60-624 Poznań, Poland. apio@au.poznan.pl
authors: Agnieszka
authors: A
authors: Piotrowska-Cyplik
authors: Anna
authors: A
authors: Olejnik
authors: Paweł
authors: P
authors: Cyplik
authors: Jacek
authors: J
authors: Dach
authors: Zbigniew
authors: Z
authors: Czarnecki
mesh_terms: D000641:Ammonia / Q000032:analysis; D001419:Bacteria / Q000187:drug effects / Q000201:enzymology*; D001673:Biodegradation, Environmental / Q000187:drug effects; D019149:Bioreactors / Q000382:microbiology; D002245:Carbon Dioxide / Q000032:analysis; D002374:Catalase / Q000378:metabolism; D007700:Kinetics; D009152:Mutagenicity Tests; D009538:Nicotine / Q000378:metabolism* / Q000633:toxicity*; D010088:Oxidoreductases / Q000378:metabolism; D010101:Oxygen Consumption / Q000187:drug effects; D012037:Refuse Disposal; D012486:Salmonella typhimurium / Q000187:drug effects; D012987:Soil / Q000032:analysis*; D013696:Temperature; D013997:Time Factors; D014026:Nicotiana / Q000633:toxicity*; D014510:Urease / Q000378:metabolism
chemical_list: D012987:Soil; D002245:Carbon Dioxide; D009538:Nicotine; D000641:Ammonia; D010088:Oxidoreductases; D002374:Catalase; D014510:Urease