NAR VE VİŞNE ÇEKİRDEĞİ YAĞLARI KULLANILARAK LİPOFİLİK ÖZELLİĞE SAHİP BEZELYE PROTEİNİ BAZLI AMBALAJ MALZEMELERİNİN TASARIMI

Abstract

Bu çalışma, biyokompozit filmler oluşturarak sürdürülebilir ve biyoaktif gıda ambalajlarına yönelik artan ihtiyacı karşılamak için yeni bir yöntem sunmaktadır. Bu filmler, %3 (hacim/ağırlık) soğuk preslenmiş nar çekirdeği yağı (PSO) ve vişne çekirdeği yağı (SCSO)'nun hidrofilik bezelye proteini matrisine emülsifiye edilmesiyle üretilmiştir. PSOF ve SCSOF olarak adlandırılan elde edilen aktif ambalaj malzemeleri, yağsız bezelye proteininden (PPF) yapılmış bir kontrol filmiyle kapsamlı bir şekilde karşılaştırılmıştır. Bu hidrofobik lipitlerin eklenmesi, matrisin kalınlığını 0.05 mm'den 0.11 mm'ye önemli ölçüde artırmış ve nem içeriğini de %23.42'den %12.61'e düşürmüştür. Yağ damlacıklarının dağılımı, önemli ölçüde ışık saçılmasına neden olarak opaklığı (1.88-2.45) artırmış ve yüzey parlaklığını (L*: 86.57'den 76.33'e) düşürmüş, bu da fotokoruma özelliğinin geliştiğini göstermiştir. Mekanik olarak, aktif lipitler plastikleştirici görevi görmüştür. Çekme dayanımı (TS) (8.05'ten 5.10 MPa'ya) azalırken, kopma uzaması (EB) %133.47'ye kadar önemli ölçüde artarak esnekliği geliştirdi. Ayrıca, PSOF formülasyonu, su buharı geçirgenliğini 0.22 g·mm/m²·h·kPa'ya düşürerek olağanüstü bariyer etkinliği sergiledi. 30 günlük bir in vitro gıda modeli denemesinde, her iki aktif formülasyon da etkili oksijen bariyerleri olarak işlev görerek, paketlenmiş ayçiçek yağındaki birincil lipid oksidasyonunu belirgin şekilde azalttı. Sonuç olarak, bitki proteinlerinin biyoaktif meyve çekirdeği yağlarıyla entegrasyonu, gelişmiş aktif ambalaj uygulamaları için son derece işlevsel, oksidasyona dayanıklı ve sürdürülebilir bir yaklaşım sunmaktadır.

Keywords

• Ambalaj malzemeleri
• bezelye proteini
• nar çekirdeği yağı
• vişne çekirdeği yağı

DESIGNING PEA PROTEIN-BASED PACKAGING MATERIALS WITH LIPOPHILIC NATURE USING POMEGRANATE AND SOUR CHERRY SEED OILS

Abstract

This study presents a new method to meet the increasing need for sustainable and bioactive food packaging by creating biocomposite films. These films are made by emulsifying 3% (v/w) cold-pressed pomegranate seed oil (PSO) and sour cherry seed oil (SCSO) into a hydrophilic pea protein matrix. The resulting active packaging materials, referred to as PSOF and SCSOF, were thoroughly compared with a control film made of oil-free pea protein (PPF). Adding these hydrophobic lipids notably increased the matrix's thickness from 0.05 to 0.11 mm and also decreased its moisture content from 23.42% to 12.61%. The distribution of oil droplets caused significant light scattering, raising opacity (1.88-2.45) and lowering surface lightness (L*: 86.57 to 76.33), indicating improved photoprotection. Mechanically, the active lipids acted as plasticizers. While tensile strength (TS) (8.05 to 5.10 MPa) decreased, elongation at break (EB) improved drastically to 133.47%, enhancing flexibility. Also, the PSOF formulation exhibited outstanding barrier efficacy, reducing water vapor permeability to 0.22 g·mm/m²·h·kPa. In a 30-day vitro food model trial, both active formulations functioned as effective oxygen barriers, markedly reducing primary lipid oxidation in packaged sunflower oil. Consequently, the integration of plant proteins with bioactive fruit seed oils presents a highly functional, oxidation-resistant, and sustainable approach for advanced active packaging applications.

Keywords

• Packaging materials
• pea protein
• pomegranate seed oil
• sour cherry seed oil

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