Factors Affecting Properties of Edible Films or Coatings

Year 2010, Volume: 8 Issue: 5, 37 - 43, 01.10.2010

Arzu Çağrı-mehmetoğlu

Abstract

Increasing consumer demand for safer and more convenient foods with longer shelf life is forcing the food industry to develop new -processing and packaging strategies. Ready-to-eat foods are frequently exposed to post process surface contamination, leading to a reduction in shelf life. Studies on the use of edible films as an alternative solution to this problem have been increased in recent years. Edible films are produced with proteins, carbohydrates, lipids or their combination. While glycerol is added into hydrocolloid films to improve elasticity, lipids are added to improve water vapor transportation rate of films. Various modification processes were proposed in the literature to improve functional properties of edible films. In this present study, factors affecting properties of edible films or coatings were reviewed

Keywords

Edible films, Edible coatings, Properties, Factors

Yenilebilir Filmlerin ve Kaplamaların Özelliklerini Etkileyen Faktörler

Abstract

Tüketicinin mikrobiyolojik bakımdan güvenli, pratik ve uzun raf ömürlü gıdaya artan talebi gıda endüstrisini yeni proses teknikleri ve paketleme stratejisi geliştirmeye zorlamıştır. Tüketime hazır gıda ürünlerinin prosesten sonraki evrede mikrobiyolojik bulaşma riski bu ürünlerin raf ömrünü önemli ölçüde azaltmaktadır. Bu soruna alternatif çözüm olabilecek yenilebilir filmlerin kullanımı üzerine çalışmalar son yıllarda artmıştır. Yenilebilir filmler protein, karbonhidrat, lipit veya bunların birlikte kullanılması ile üretilirler. Hidrokolloid filmlere elastikiyet kazandırmak için gliserol eklenirken, su buharı geçirgenliği iyileştirmek amacıyla lipit eklemesi yapılır. Bunun gibi yenilebilir filmlerin özellikleri farklı işlemler uygulanarak iyileştirme çalışmaları birçok araştırmada yapılmıştır. Bu derlemede yenilebilir filmlerin ve kaplamaların özelliklerini etkileyen faktörlere yer verilmiştir

Keywords

Yenilebilir film, Yenilebilir kaplamalar, Özellikler, Faktörler

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