00000caa a22000003i 4500 UP-1685594773862388676 Buklod 20210323170417.0 m | | ta 210323s2019 xx r |||| u|eng d (iLib)UPBAG-00039569104 STII-DOST BAG rda eng ARTICLE-2856 Tarroza, Angelou Vanessa Z. author. Utilization of hydrated petrifilm coupled with filtration in the detection and enumeration of Escherichia coli in water samples by Angelou Vanessa Z. Tarroza, Kristine V. Catsao, Marie Angeli Ramos, Lucille C. Villegas, and Asuncion K. Raymundo. 2019. pages 395-399 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (page 399) Hydrated 3M? Petrifilm? E. coli / coliform (EC) plates coupled with filtration (HPECF) was found to be suitable in the analysis of 100 mL water samples, which is required in standard protocols in food and pharmaceutical industries. This was demonstrated with the use of suspensions of pure Escherichia coli and E. coli mixed with Enterobacter aerogenes and Pseudomonas aeruginosa ? with 93?100% cell recovery. The results indicated that the HPECF method could be valuable in standard water quality analysis in pharmaceutical companies as it provides an acceptable and faster way to comply with the 2017 Philippine National Standards for Drinking Water (PNSDW). Likewise, HPECF results can be obtained after 48 h instead of 120 h as being currently used in the Most Probable Number (MPN) method, making HPECF three times faster than MPN. Furthermore, a simple cost-benefit analysis revealed that the use of HPECF can reduce the cost of water testing by 50% as compared to the MPN method. Consequently, the HPECF method is a more economical and faster alternative to the standard MPN method for water quality analysis for manufacturing companies. (Author's abstract) Biology. Coliform. E. coli. Filtration. Petrifilm. Water analysis. Raymundo, Asuncion K. author. Villegas, Lucille C. author. Ramos, Marie Angeli author. Catsao, Kristine V. author. The Philippine Journal of Science Vol. 148, no. 2, June 2019. Request full-text access via UPB University Library through https://forms.gle/KZjBv7aRtY6jiL5E9 (viewed 23 March 2021) FI UPBAG UPBAG-MAIN ARTICLE-2856 Analytics