an investigation of domestic laundry in europe - habits ... - SIFO

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90An investigation into the domestic laundry habits in EuropeNo Bacillus and no Staphylococcus aureus were found after washing andhardly any yeasts or fungi were found.The NetherlandsThe two most common washing processes in the Netherlands are a 40°C cottonprogramme using a compact powder without bleach and a 60°C cottonprogramme also using a compact powder but with bleaching agents. The mostinteresting results are summarised in graphs 4.13, 4.14 and 4.15. A significantdifference is found between before and after washing (ANOVA-One Way, α= 0.05): the laundry is hygienically cleaner after washing. The Total PlateCount of the Dutch washing processes is comparable to the situation inGreece and Norway. In the Netherlands, a significant difference is found betweenthe 40°C and the 60°C programme (ANOVA/One Way, α = 0). Thespread of micro-organisms is shown in graph 4.14. Before washing, the Enterobacteriaceaewere found only on the diaper and the dishcloth, but afterwashing at 40°C they were found on all laundry items including the sterilesample. The 60°C programme, however, removed all Enterobacteriaceae.Handkerchief Diaper Sock Dishcloth Sterile samplelog CFU/4,7cm2 sample9876543210Before w ashing 40° C 60° CFigure 4-13 Total Plate Count of the ost common Dutch washing processes
Hygiene effects of laundry processes in Europe 91Handkerchief Diaper Sock Dishcloth Sterile samplelog CFU/4,7cm2 sample9876543210Before w ashing 40° C 60° CFigure 4-14 Enterobacteriaceae in the most common Dutch washing processesHandkerchief Diaper Sock Dishcloth Sterile samplelog CFU/4,7cm2 sample9876543210Before w ashing 40° C 60° CFigure 4-15 Bacilli in the most common Dutch washing processesSome interesting results also appear for the Bacilli (graph 4.15). The amountof Bacilli after the Dutch washing processes is relatively high. Even the 60°Cprogramme did not remove these micro-organisms and the contaminationlevel of the sterile sample is even higher than at 40°C. No significant differenceswere found between these washing programmes. Similar results for theamount of Bacilli were found only in Norway. The Greek and Spanish washingprocesses removed all Bacilli. An additional analysis of the micro-
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Page 119 and 120: Appendix ASurvey of domestic laundr
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Page 127 and 128: Appendix B 125NorwayA) Omo Ultra Ta
Page 129 and 130: Appendix CSettings of the 15°C Was
Page 131 and 132: Appendix DSettings of the 30°C Was
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