Pulsed Electric Fields Technology PEF : System and Treatment Chambers

Yıl 2014, Cilt: 12 Sayı: 2, 69 - 78, 01.06.2014

Erdal Ağçam Asiye Akyıldız Gülsün Akdemir Evrendilek

Öz

Demand for high quality, microbiologically safe foods with fresh like properties have been increased recently. In order to achieve this, new age processing technologies at lower processing temperatures for preservation of nutritional and sensory properties as well as providence of food security are used. One of the frontier technologies among those is the pulsed electric field PEF processing. The basic of the PEF is the application of the short burst of high voltage electrical energy in microseconds which has the inactivation effect on both microorganisms and enzymes. PEF systems are composed of a high voltage pulse generator, PEF chambers, trigger generator, fluid handling system, control and monitoring devices. Important developments have been achieved with recent developments in PEF technology, and today this technology is at the state where it can successfully be used in processing of liquid foods

Anahtar Kelimeler

Pulsed electric fields PEF, PEF system components, Treatment chambers

Vurgulu Elektrik Alan Teknolojisi PEF : Sistem ve Uygulama Odacıkları

Öz

Günümüzde tüketicinin kaliteli, tazesine yakın ve mikrobiyolojik olarak güvenilir gıdalara olan talebi artmaktadır. Bunun için düşük işleme sıcaklıkları ile gıdaların güvenliğini sağlayan, besin ve duyusal özelliklerini ise koruyan yeni nesil işleme teknolojileri kullanılmaktadır. Bu yeni teknolojilerin önde gelenlerinden biri de vurgulu atımlı elektrik alan uygulamasıdır. Vurgulu elektrik alan teknolojisinin esası, gıdaya mikro saniyelerle ifade edilen, çok küçük zaman dilimlerinde uygulanan yüksek voltajın enzimler ve mikroorganizmalar üzerindeki inaktivasyonu etkisine dayanır. PEF sistemi yüksek voltajlı bir vurgu jeneratörü, uygulama odacığı, akış kontrol sistemi, kontrol ve monitör aygıtından oluşmaktadır. Süreç içerisinde PEF teknolojisinde önemli aşamalar kaydedilmiş ve bu teknoloji günümüzde sıvı gıdalara başarılı bir şekilde uygulanabilir duruma gelmiştir

Anahtar Kelimeler

Vurgulu elektrik alan PEF, PEF sistemi bileşenleri, Uygulama odacıkları

Kaynakça

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