Efficacy of a pilot-scale ultrasonication system for pasteurization of milk

Year 2021, Volume: 3 Issue: 2, 50 - 55, 30.12.2021

Gülsün Akdemir Evrendilek , Anıl Bodruk , Furkan Acar

https://doi.org/10.53663/turjfas.996406

Cited By: 1

Abstract

This study aimed to test a pilot-scale continuous ultrasonication (US) system to pasteurize whole milk in terms of physical properties, energy consumption, and inactivation of alkaline phosphatase (ALP), total mesophilic aerobic bacteria (TMAB), total coliform (TC), total enterobactericeae (TE), and Escherichia coli. Except for those treated by 90% amplitude for 20 and 30 min, the samples were found negative for ALP activity. Inactivation of TC, TMAB, TE, and E. coli rose with an increased amplitude and temperature. The maximum cost was estimated at 2.778,00 € for the system and at 3.624,00 € for plate heat exchanger to pasteurize 20.000 L of milk. 96.52% amplitude, 40 min, and 53.50 °C were determined jointly as the optimal operational settings.

Keywords

Ultrasonication, Milk processing, Optimization, Alkaline phosphatase, Cost analyses

Supporting Institution

Bolu Abant Izzet Baysal University Research Fund and Republic of Turkey Ministry of Development Government Planning Agency

Project Number

BAP- 2018.09.04.1304 and 2009 DPT K 120140

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