Reference

Combined treatment with hydrogen peroxide and ultra-violet irradiation to reduce microbial contamination levels in preformed food packaging cartons

Combined treatment with hydrogen peroxide and ultra-violet irradiation to reduce microbial contamination levels in preformed food packaging cartons. Stannard, Catherine J.; Abbiss, John S.; Wood, John M. (Leatherhead Food Res. Assoc. 7722-84-1 and 7429-90-5 are also occured in this study., Leatherhead/Surrey KT22 7RY, UK). J. Food Prot., 46(12), 1060-4 (English) 1983. CODEN: JFPRDR. ISSN: 0362-028X. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) A treatment combining H2O2 and UV irradn. was assessed for redn. of microbial contamination in preformed food packaging cartons. There was a synergistic effect between low concns. (0-5% wt./vol.) of H2O2 and UV irradn. (10 s) on spores of Bacillus subtilis, the max. lethality occurring between 0.5 and 1% peroxide. A combined treatment using 1% H2O2 and 10 s of UV irradn. was also effective against a variety of other organisms (spores and vegetative cells). The efficiency of the treatment was dependent on the type of inner surface of the carton. A greater lethal effect was obtained against B. subtilis spores in polyethylene-lined cartons than in Al/polyethylene [9002-88-4] laminate-lined cartons (5.1 and 3.5 decimal redns. in nos. resp., using a combined treatment with 1% peroxide and 10 s of UV). .

Direct radiation-induced graft polymerization of acrylic acid from an aqueous solution onto polyethylene

Direct radiation-induced graft polymerization of acrylic acid from an aqueous solution onto polyethylene. Sidorova, L. P.; Kabanov, V. Ya. (Inst. Fiz. Khim., Moscow, USSR). Khim. Vys. Energ., 18(1), 36-9 (Russian) 1984. CODEN: KHVKAO. ISSN: 0023-1193. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) In the radiochem. grafting of acrylic acid (I) [79-10-7] on low-d. polyethylene [9002-88-4] in an aq.Several substances with their cas registry numbers 9002-88-4 and 79-10-7 may be metioned in this study. medium in the presence of Mohr's salt [10045-89-3], the polymn. rate (V) was described by the equation V = k[I]0.4[Fe2+]0.1[M]0.6, where k is a const., I is the dose rate in Gy/s, and M is the concn. of I in mol/L. Suppression of the homopolymn. of I by the Mohr's salt was obsd., and the mechanism of this effect is discussed. Removing O from the polymn. medium (by bubbling with Ar or by freezing the soln. and exhausting the gases in a vacuum) led to increased grafting rate. .