INVESTIGATION OF ELECTROSPUN NANOFIBERS STRENGTHENED WITH CHITIN AS ACTIVE PACKAGING MATERIAL

Öz

Electrospinning is an innovative method for the production of fibers with different sizes having a high surface area/volume ratio. The aim of this study was to produce zein based nanobiocomposite active packaging materials loaded with mint essential oil and strengthened by chitin fibers/chitin microcrystals using electrospinning. Surface morphologies, mechanical properties and antimicrobial activities of the produced nanobiocomposites were determined. The average fiber diameter increased with the addition of chitin fibers into polymer solution. It was found that the mechanical properties of materials containing chitin microcrystals were weaker than the materials containing chitin fibers. The composite materials containing chitin fibers and mint essential oil did not form a clear zone on the test microorganisms. However, materials containing chitin microcrystals with mint essential oil were more effective on Staphylococcus aureus than Escherichia coli. It is considered that nanobiocomposites produced can be used in the development of potential active packaging systems.

Anahtar Kelimeler

• Electrospinning,nanobiocomposite,mint essential oil,chitin fibers,chitin microcrystals

KİTİN İLE GÜÇLENDİRİLEN ELEKTROEĞRİLMİŞ NANOLİFLERİN AKTİF AMBALAJ MALZEMESİ OLARAK KULLANILABİLİRLİĞİNİN İNCELENMESİ

Öz

Elektroeğirme, yüksek yüzey alanı/hacim oranına sahip farklı boyutlarda liflerin üretimi için yenilikçi bir yöntemdir. Bu çalışmanın amacı, nane uçucu yağı yüklü ve kitin lifleri/kitin mikro kristalleri ile güçlendirilmiş zein bazlı nanobiyokompozit malzemelerin elektroeğirme yöntemi ile üretilmesidir. Üretilen nanobiyokompozitlerin yüzey morfolojisi, mekanik özellikleri ve antimikrobiyal aktiviteleri belirlenmiştir. Polimer çözeltisine kitin liflerinin eklenmesi ile ortalama lif çapı artmıştır. Kitin mikro kristalleri içeren malzemelerin mekanik özelliklerinin, kitin lifi içeren malzemelere göre daha zayıf mekanik özelliklere sahip olduğu bulunmuştur. Kitin lifleri ve nane uçucu yağı içeren malzemeler test mikroorganizmaları üzerinde berrak zon oluşturmamıştır. Fakat kitin mikro kristalleri ile birlikte nane uçucu yağı içeren malzemeler, Staphylococcus aureus üzerinde Escherichia coli’den daha etkili olmuştur. Üretilen nanobiyokompozit malzemelerin potansiyel aktif ambalajlama sistemlerinin geliştirilmesinde kullanılabileceği düşünülmektedir.

Anahtar Kelimeler

• Elektroeğirme,nanobiyokompozit,nane uçucu yağı,kitin lifleri,kitin mikro kristalleri

Kaynakça

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