BİYOLOJİK PARÇALANABİLİR PLASTİK: POLİHİDROKSİALKANATLAR

Year 2008, Volume: 7 Issue: 1, 1 - 6, 30.11.2008

Engin Gürtekin , Nüsret Şekerdağ

Abstract

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.

Keywords

Polihidroksialkanatlar, Biyolojik Parçanabilir Plastik, Üretim Maliyeti

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