THE USE OF PULSED ELECTRIC FIELD AS A PRE-TREATMENT FOR DRYING OF FRUITS AND VEGETABLES

Abstract

In drying of fruits and vegetables using traditional methods, the degree of drying temperature and time applied significantly affect the quality and cost of the final product. The high temperature and long drying periods generally trigger unwanted changes, causing a decrease in the quality attributes of product and an increase in energy expenditure. Pulsed electric field technique is known to be one of the alternative techniques that has emerged in recent years, which has the potential to reduce these drawbacks in drying. In most of the studies conducted so far, it has been reported that with this technique the quality attributes are more protected and the energy consumption can be reduced in the drying of fruits and vegetables. Within the scope of this review, the effects of pulsed electric field application on the drying behavior and quality characteristics of fruits and vegetables were evaluated.

Keywords

• pulsed electric field
• fruits
• vegetables
• drying

MEYVE VE SEBZELERİN KURUTULMASINDA ÖN İŞLEM OLARAK VURGULU ELEKTRİK ALAN KULLANIMI

Abstract

Meyve ve sebzelerin geleneksel yöntemler ile kurutulmasında, uygulanan kurutma sıcaklığının ve süresinin derecesi nihai ürünün kalite ve maliyetine önemli derecede etkide bulunmaktadır. Uygulanan yüksek sıcaklık ve uzun kuruma süreleri genellikle istenmeyen değişimleri tetikleyerek, ürünün kalite öğelerinde azalmalara yol açmakta ve enerji sarfiyatını artırmaktadır. Vurgulu elektrik alan tekniği, kurutmadaki bu olumsuzlukları azaltma potansiyeline sahip son yıllarda ortaya çıkan alternatif tekniklerden birisi olarak bilinmektedir. Şu ana kadar yapılan çalışmaların birçoğunda meyve sebzelerin bu teknik ile kurutulmasında kalite öğelerinin daha fazla korunduğu ve enerji sarfiyatının azaltılabileceği bildirilmiştir. Bu derleme kapsamında, vurgulu elektrik alan uygulamasının meyve sebzelerin kuruma davranışı ve kalite özellikleri üzerindeki etkileri değerlendirilmiştir.

Keywords

• vurgulu elektrik alan
• meyveler
• sebzeler
• kurutma

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