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Modelling for the Survival of Escherichia coli in Tender Coconut (Cocos nucifera l.) Water by Non-thermal Pulsed Light Treatment

  • Author:Preetha. P*1 , Varadharaju , N2 , John Kennedy , Z.3and D. Malathi4

    p-ISSN:0024-9602, Vol:104, Issue: 194-196

    DOI:10.29321/MAJ 2019.000213
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Abstract

                                The effect of pulsed light on the survival of E.coli MTCC 433 in tender coconut water was investigated. The sterilized liquid samples were inoculated with E.coli @ 1010 cfu/ml and treated with pulsed light intensities of 0.18, 2 and 5.6 W/cm2 for an exposure time between 0 and 15 sec. The results obtained were fitted with three different models such as log linear plus tail, Weibull and biphasic model. Biphasic model showed the best the performance with 7 smaller RSME values of 9 evaluated kinetics followed by Weibull model. Among the three models, biphasic model fitted well with the inactivation of E.coli MTCC 433 by using pulsed light treatment.

Key words : E.coli MTCC 433, Inactivation, Pulsed light treatment, Modelling.

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