Comparative study on shelf life of whole milk processed by high-intensity pulsed electric field or heat treatment

Journal of Dairy Science
Isabel Odriozola-SerranoOlga Martín-Belloso

Abstract

The effect of high-intensity pulsed electric fields (HI-PEF) processing (35.5 kV/cm for 1,000 or 300 micros with bipolar 7-micros pulses at 111 Hz; the temperature outside the chamber was always < 40 degrees C) on microbial shelf life and quality-related parameters of whole milk were investigated and compared with traditional heat pasteurization (75 degrees C for 15 s), and to raw milk during storage at 4 degrees C. A HIPEF treatment of 1,000 micros ensured the microbiological stability of whole milk stored for 5 d under refrigeration. Initial acidity values, pH, and free fatty acid content were not affected by the treatments; and no proteolysis and lipolysis were observed during 1 wk of storage in milk treated by HIPEF for 1,000 micros. The whey proteins (serum albumin, beta-lactoglobulin, and alpha-lactalbumin) in HIPEF-treated milk were retained at 75.5, 79.9, and 60%, respectively, similar to values for milk treated by traditional heat pasteurization.

References

Dec 1, 1979·Nihon juigaku zasshi. The Japanese journal of veterinary science·T HayashiM Miyake
Sep 1, 1994·The Journal of Applied Bacteriology·E M CriellyA Anderton
Aug 1, 1993·The Journal of Dairy Research·R López-FandiñoM Ramos
Nov 24, 1999·International Journal of Food Microbiology·M L Calderón-MirandaB G Swanson
Feb 26, 2005·Critical Reviews in Food Science and Nutrition·F SampedroG V Barbosa-Cánovas

❮ Previous
Next ❯

Citations

Aug 30, 2008·Critical Reviews in Food Science and Nutrition·Jonathan Mosqueda-MelgarOlga Martín-Belloso
Sep 19, 2009·Journal of Dairy Science·I Moreno-IndiasA Argüello
Dec 5, 2008·Journal of Applied Microbiology·M Walkling-RibeiroD J Morgan
Dec 17, 2008·Folia Microbiologica·L EbringerJ Krajcovic
Dec 22, 2007·Journal of Food Protection·N J RowanS J MacGregor

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cajal Bodies & Gems

Cajal bodies or coiled bodies are dense foci of coilin protein. Gemini of Cajal bodies, or gems, are microscopically similar to Cajal bodies. It is believed that Cajal bodies play important roles in RNA processing while gems assist the Cajal bodies. Find the latest research on Cajal bodies and gems here.