Su Ürünleri Ambalajı İçin Jelatin Filmlerde Mavi Renklendirici Olarak Bakır Ftalosiyanin Pigmentlerinin Kullanımı

Abstract

Bu çalışmada, PD1 ve PD2 kodlu Bakır (Cu) ftalosiyanin pigmentleri karakterize edilmiş ve jelatin esaslı akuatik ambalajlama malzemelerinde mavi renklendirici olarak kullanılma olanakları değerlendirilmiştir. Sentezlenen ftalosiyanin pigmentleri ithal ticari PB15:1 (kontrol) ile Fourier Dönüşümlü Kızılötesi Spektroskopisi (FTIR), HPLC sonuçları, Cu içeriği, kül içeriği ve bakır içeriği açısından karşılaştırılmıştır. Üretilen D1 ve D2 numunelerinin hem Cu miktarı hem de FTIR sonuçları açısından ticari toza en yakın olanlar olduğu belirlenmiştir. Çözeltiye göre ağırlıkça %0,5 oranında PD1 kodlu seçilen örnek, %10 ve %5 gliserol içeren jelatin içeren çözeltilere eklenmiş ve sırasıyla GL10, GL5 kurutulmuş filmleri elde edilmiştir. %10 gliserollü film daha iyi renk özellikleri göstermesine rağmen, L, a, b, Hue açısı ve Kroma parametreleri önemsiz bulunmuştur (p>0,05). Çekme testleri ve sürünme/geri kazanım eğrileri, GL10'un GL5'e kıyasla %107 daha yüksek kopma uzaması, %29 daha düşük Young modülü (Ea) ve daha yüksek gerinim değerlerine sahip olduğunu, dolayısıyla daha yumuşak ve daha esnek olduğunu göstermiştir. Seçilen GL10 numunesi için sertlik, çiğnenebilirlik ve yapışkanlık gibi deformasyon parametreleri de farklı deformasyon oranlarında karşılaştırılmıştır. Sonuçlar, mavi pigment katkılı jelatin filmlerin su ürünleri ambalajlarında kullanılabileceğini göstermiştir.

Keywords

• Bakır ftalosiyanin
• Mavi pigment
• Ambalaj rengi
• Çekme mukavemeti
• Sertlik

The Use of Copper Phthalocyanine Pigments as Blue Colorants in Gelatin Films for Aquatic Food Packaging

Abstract

In this study, Copper (Cu) phthalocyanine pigments, coded PD1 and PD2, were characterized, and the possibility of using them as blue colorants in gelatin-based materials for aquatic packaging was evaluated. Synthesized phthalocyanine pigments were compared with imported commercial PB15:1 (control) in terms of Fourier Transform Infrared Spectroscopy (FTIR), high-performance liquid chromatography (HPLC) results, Cu, and ash content. It was found that the synthesized PD1 and PD2 samples were the ones closest to the commercial powder in terms of FTIR peaks, Cu amount, and HPLC results. The selected sample coded PD1 at 0.5 wt% with respect to the solution was further added to gelatin-containing solutions containing 10% and 5% glycerol, and dried films of GL10 and GL5 were obtained, respectively. Although the 10% glycerol-added film showed better color properties, L, a, b, Hue angle, and Chroma parameters were insignificant (p>0.05). Tensile tests and creep/recovery curves showed that GL10 had 107% higher elongation at break, 29% lower Young’s modulus, and higher strain values compared to GL5, making it softer and more flexible. Deformation parameters such as hardness, chewiness, and gumminess were also compared at different deformation rates for the selected GL10 sample. Results indicated that blue pigment-added gelatin films can be used in aquatic food product packages.

Keywords

• Copper phthalocyanine
• Blue pigment
• Packaging color
• Tensile strength
• Hardness

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