Development of Oleuropein Incorporated Chitosan Films for Antioxidant Active Food Packaging Applications

Year 2023, , 158 - 165, 22.03.2023

Ayça Aydoğdu , Fatmagül Kaya

https://doi.org/10.17798/bitlisfen.1219638

Cited By: 1

Abstract

Oleuropein is the major phenolic component of olive leaf extract. In the present study, oleuropein was incorporated into chitosan films and the physical properties and antioxidant activity of films were determined. Chitosan to oleuropein ratio was arranged as 1:1, 1:0.5, 2:1, 2:0.5. Physical properties including moisture content, density, solubility, water vapor permeability, color and opacity were measured. The results showed the addition of oleuropein improved water vapor barrier and decreased solubility of chitosan films. The density and moisture content of the oleuropein added films were found similar with chitosan films. Oleuropein incorporation resulted in higher opacity and b* values whereas a* and L* values decreased. Chitosan films with oleuropein showed strong antioxidant activity. Films at chitosan/oleuropein ratio as 1:1 could be good candidate for active packaging material due to exhibiting good water vapor barrier, opacity and antioxidant property.

Keywords

oleuropein, chitosan, water vapor permeability, antioxidant activity, opacity

Supporting Institution

Scientific and Technological Research Council of Turkey (TÜBİTAK)

Project Number

2209A- Research Project Support Programme for Undergraduate Students]

Thanks

This work was supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) [2209A- Research Project Support Programme for Undergraduate Students].

Antioksidan Aktif Gıda Paketleme Uygulamaları için Oleuropein Yüklü Kitosan Filmlerinin Geliştirilmesi

Abstract

Oleuropein, zeytin yaprağı ekstraktının ana fenolik bileşenidir. Bu çalışmada, oleuropein kitosan filmlere eklenmiş ve filmlerin fiziksel özellikleri ve antioksidan aktiviteleri belirlenmiştir. Kitosanın oleuropeine oranı 1:1, 1:0.5, 2:1, 2:0.5 olarak düzenlenmiştir. Nem içeriği, yoğunluk, çözünürlük, su buharı geçirgenliği, renk ve opaklık gibi fiziksel özellikler ölçülmüştür. Sonuçlar, oleuropein ilavesinin su buharı bariyerini iyileştirdiğini ve kitosan filmlerin çözünürlüğünü azalttığını göstermiştir. Oleuropein katkılı filmlerin yoğunluk ve nem içerikleri kitosan filmlerle benzer bulunmuştur. Oleuropein eklenmesi daha yüksek opaklık ve b* değerleri ile sonuçlanırken a* ve L* değerleri azalmıştır. Oleuropein içeren kitosan filmler güçlü antioksidan aktivite göstermiştir. 1:1 kitosan/oleuropein oranındaki filmler, iyi su buharı bariyeri, opaklık ve antioksidan özelliği göstermeleri nedeniyle aktif ambalaj malzemesi olarak iyi bir aday olabilir.

Keywords

kitosan, su buharı geçirgenliği, antioksidan aktivite, opaklık, oleuropein

Project Number

2209A- Research Project Support Programme for Undergraduate Students]

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