BİYOLOJİK PARÇALANABİLİR PLASTİK: POLİHİDROKSİALKANATLAR

Yıl 2008, Cilt: 7 Sayı: 1, 1 - 6, 30.11.2008

Engin Gürtekin Nüsret Şekerdağ

Öz

Polihidroksialkanatlar
(PHA), bazı mikroorganizmalarda karbon ve enerji veya indirgeyici güç depolama
maddesi olarak biriktirilen hidroksialkanatların polimerleridir. PHA, biyolojik
olarak parçalanabilme özelli-ğine sahip olduğundan, klasik polimerlerin yerine
kullanılması yönünde artan bir ilgi bulunmaktadır. Ancak, PHA’ın en önemli
dezavantajı üretim maliyetinin yüksek oluşudur. Bu maliyetin azaltılması için,
daha iyi bakteri zincirleri, daha etkili fermantasyon ve elde etme prosesleri
geliştirme yönünde büyük çabalar sarf edilmektedir. Bu çalışmada, klasik
plastiklere alternatif ve biyolojik parçalanabilirliği nedeniyle çevre dostu
bir plastik materyal olan PHA incelenmiştir.

Anahtar Kelimeler

Polihidroksialkanatlar, Biyolojik Parçanabilir Plastik, Üretim Maliyeti

Kaynakça

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