Statistical evaluation of biodegradation of news ink vehicles and ink formulations

• Published in: Journal of the American Oil Chemists' Society Vol. 74; no. 6; pp. 707 - 712
• Main Authors: Erhan, S.Z. (Oil Chemical Research, USDA, ARS, NCAUR, Peoria, IL.), Bagby, M.O, Nelson, T.C
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01-06-1997; Springer; Springer Nature B.V
• Subjects: ACEITE DE SOJA; Biodegradation; Biodegradation of pollutants; Biological and medical sciences; Biotechnology; CHAMPIGNON DU SOL; Commercial vehicles; Environment and pollution; Fundamental and applied biological sciences. Psychology; Fungi; HONGOS DEL SUELO; HUILE DE SOJA; Industrial applications and implications. Economical aspects; ink vehicle; Inks; Mineral oils; Mixed culture; Monoculture; news ink; Resins; SOIL FUNGI; SOYBEAN OIL; Soybeans; statistical; vehicle soybean oil; Biodegradation; Statistical analysis; Biodegradability; Phycomycetes; Mixed microorganism culture; Ink; Vehicle(excipient); Mineral oil; Mucor racemosus; Vegetal oil; Fungi; Pollutant; Additive; Fungi Imperfecti; Aspergillus fumigatus; Soybean oil; Comparative study; Penicillium citrinum; Thallophyta
• ISSN: 0003-021X; 1558-9331
• DOI: 10.1007/s11746-997-0205-y

Soybean oil, commercial news ink vehicles—consisting of either soy or mineral oil and petroleum resins—and United States Department of Agriculture’s (USDA) 100% modified soy oil‐based vehicles were subjected to biodegradation. Soybean oil and each vehicle were inoculated with monocultures and a mixed culture of Aspergillus fumigatus, Penicillium citrinum, and Mucor racemosus. Fermentations were allowed to proceed for 5, 12, and 25 d. Results show that, in 25 d, soy oil was degraded the most, followed by the USDA’s ink vehicles (USDA I–III), Newspaper Association of America’s (NAA) hybrid soy oil‐based and commercial mineral oil‐based vehicles. Some differences were found in the abilities of the cultures to degrade the different inks. Color did not appear to affect the degradation rate in soy oil, the USDA inks, or the NAA ink but was a factor in the commercial ink.