[Determination of substances in polylactic acid products for food-contact use and mutagenicity of their migration solutions].
Specification tests defined in the Japanese Food Sanitation Law were conducted on 7 polylactic acid food-contact products. Moreover, the content and migration of other compounds were examined by means of ICP-AES, GC/MS and mutagenicity tests. All products met their specifications, and migration levels of heavy metals were negligible. No notable peak was observed in GC/MS analysis. Moreover, all products gave negative results in both rec-assay and the umu-test. An increase in the β-galactosidase activity in the umu-test observed with the migration solution of soup bowl was due not to polylactic acid, but to the polyurethane coating.
Osaka City Institute of Public Health and Environmental Sciences, 8-34 Tojo-cho, Tennouji-ku, Osaka, Japan.
Asako
A
Ozaki
Tomoko
T
Ooshima
Sumiko
S
Ohgaki
Yoko
Y
Kawamura
D001412:Bacillus subtilis / Q000187:drug effects; D018533:Biomass; D018857:Food Packaging / Q000592:standards; D059022:Food Safety; D008401:Gas Chromatography-Mass Spectrometry; D019344:Lactic Acid / Q000009:adverse effects / Q000737:chemistry; D008670:Metals / Q000032:analysis; D009152:Mutagenicity Tests; D010969:Plastics; D011091:Polyesters; D011108:Polymers / Q000009:adverse effects / Q000737:chemistry; D012996:Solutions; D013696:Temperature
D008670:Metals; D010969:Plastics; D011091:Polyesters; D011108:Polymers; D012996:Solutions; D019344:Lactic Acid; C033616:poly(lactide)