| Title: | Natural formation of styrene by cinnamon mold flora |
| Author(s): | Lafeuille JL; Buniak ML; Vioujas MC; Lefevre S; |
| Address: | "McCormick France, McCormick Europe Central Analysis Laboratory, 84210 Carpentras, France. jlafeuille@fr.mccormick.com" |
| DOI: | 10.1111/j.1750-3841.2009.01206.x |
| ISSN/ISBN: | 1750-3841 (Electronic) 0022-1147 (Linking) |
| Abstract: | "Tests on 106 dried pure cinnamon samples of diverse origins showed that some samples were naturally contaminated with high levels of styrene, up to 524 microg/g. Styrene taint can be associated with high water activity levels and thus with microorganism growth. The mold flora of a Korintji cinnamon sample in which styrene had been found at a 50 microg/g concentration was analyzed and 5 species of mold were isolated. An investigation into the ability of the 5 species of mold to produce styrene showed that 3 of them--namely, Penicillium citrinum, Penicillium oxalicum, Aspergillus niger--produced styrene in vitro in buffered peptone water at 25 degrees C within 5 d in the presence of several natural cinnamon volatile constituents containing the styrene structure. The conversion of these compounds into styrene by these 3 cinnamon fungal species has never been previously reported. A standardized inoculation with the 3 mold species was carried out on 10 g cinnamon samples of various origins followed by a 10-d incubation and highlighting styrene production except for Sri Lanka origin" |
| Keywords: | "Acrolein/analogs & derivatives/chemistry/metabolism Antifungal Agents/chemistry Antineoplastic Agents, Phytogenic/chemistry/metabolism Aspergillus/genetics/metabolism Carbon Dioxide/analysis Cinnamates/chemistry/metabolism Cinnamomum aromaticum/*chemistry;" |
| Notes: | "MedlineLafeuille, J-L Buniak, M-L Vioujas, M-C Lefevre, S eng Research Support, Non-U.S. Gov't 2009/09/03 J Food Sci. 2009 Aug; 74(6):M276-83. doi: 10.1111/j.1750-3841.2009.01206.x" |
