PMID- 9373531 OWN - NLM STAT- MEDLINE DCOM- 19971208 LR - 20181201 IS - 0265-203X (Print) IS - 0265-203X (Linking) VI - 14 IP - 6-7 DP - 1997 Aug-Oct TI - Evaluation, modelling and optimization of the cleaning process of contaminated plastic food refillables. PG - 671-83 AB - In this study several types of bottle materials (glass, PET (polyethylene terephthalate), PC (polycarbonate), HDPE (high density polyethylene), PP (polypropylene) and PVC (polyvinyl chloride)) were evaluated in order to be used as food refillables, comparing the residual chemical contamination after classical caustic washing. Bottles were contaminated with model chemicals (chloroxylenol and d-limonene) and caustic washed with varied process parameters using a simulated laboratory-scale washing procedure. After washing, the chemical-contaminated bottles were filled with water and stored for 28 days at 37 degrees C. The concentrations of the model chemicals in the water after storage were taken as a measure of chemical contamination. The influence of the cleaning parameters (temperature, caustic and commercial additive concentration) was studied using response surface methodology. Washing temperature showed a significant influence on the removal of absorbed chemicals from surfaces compared with the effect of the caustic and especially the additive concentration. Optimization of caustic cleaning for the cleaning process in question led to better cleaning effectiveness, although none of the different washing conditions were able to remove all absorbed chemicals out of the polymeric resins. Commercially available plastic refillables (PET and PC) showed the best chemical rinsability. Glass bottles, however, had in every case the best rinsing characteristics. FAU - Devlieghere, F AU - Devlieghere F AD - University of Ghent, Faculty of Agricultural and Applied Biological Sciences, Department of Food Technology and Nutrition, Belgium. FAU - De Meulenaer, B AU - De Meulenaer B FAU - Sekitoleko, P AU - Sekitoleko P FAU - Estrella Garcia, A A AU - Estrella Garcia AA FAU - Huyghebaert, A AU - Huyghebaert A LA - eng PT - Journal Article PL - England TA - Food Addit Contam JT - Food additives and contaminants JID - 8500474 RN - 0 (Cyclohexenes) RN - 0 (Plastics) RN - 0 (Polyethylene Terephthalates) RN - 0 (Polyethylenes) RN - 0 (Terpenes) RN - 0 (Xylenes) RN - 0F32U78V2Q (chloroxylenol) RN - 9MC3I34447 (Limonene) SB - IM MH - *Conservation of Natural Resources MH - Cyclohexenes MH - *Food Packaging MH - Limonene MH - Models, Theoretical MH - *Plastics MH - Polyethylene Terephthalates MH - Polyethylenes MH - Terpenes MH - Xylenes EDAT- 1997/08/01 00:00 MHDA- 1997/11/28 00:01 CRDT- 1997/08/01 00:00 PHST- 1997/08/01 00:00 [pubmed] PHST- 1997/11/28 00:01 [medline] PHST- 1997/08/01 00:00 [entrez] AID - 10.1080/02652039709374579 [doi] PST - ppublish SO - Food Addit Contam. 1997 Aug-Oct;14(6-7):671-83. doi: 10.1080/02652039709374579.