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Abstract
Plastik konvensional yang saat ini sering digunakan berasal dari polimer minyak bumi yang tidak dapat diperbaharui dan sulit terurai oleh mikroorganisme sehingga mencemari lingkungan. Bioplastik merupakan solusi untuk mengatasi pencemaran lingkungan yang disebabkan oleh plastik yang tidak mudah terurai. Bioplastik adalah plastik yang terbuat dari bahan alam yang mampu terurai oleh mikroorganisme. Bahan alam yang memiliki potensi untuk digunakan sebagai bahan dasar bioplastik adalah kulit buah nanas yang memiliki kandungan selulosa dan zat gula sebesar 52.05 %. Tujuan penelitian ini adalah mengetahui pembuatan bioplastik dari kulit buah nanas dengan penambahan gliserol dan kitosan. Variasi gliserol yang digunakan adalah 5%, 10%, 15%, 20%, 25% dan variasai kitosan yang digunakan 0%,1%, 2%, 4%, 5%. Parameter bioplastik yang diukur pada penelitian ini meliputi uji ketebalan, tensile strength, dan ketahanan air. Hasil bioplastik terbaik diperoleh pada penambahan kitosan 5% dan gliserol 5%, dengan sifat fisik biplastik yaitu ketebalan sebesar 0,17 mm, tensile strength sebesar 40,9 MPa, dan ketahanan air sebesar 100%.
Kata kunci: bioplastik, gliserol, kitosan, kulit buah nanas
Abstract
Conventional plastics that are currently often used are derived from petroleum polymers which are non-renewable and difficult to decompose by microorganisms, thus polluting the environment. Bioplastics are a solution to overcome environmental pollution caused by plastics that do not decompose easily. Bioplastics are plastics made from natural materials that can be decomposed by microorganisms. Natural materials that have the potential to be used as basic ingredients for bioplastics are pineapple peels which contain 52.05% cellulose and sugars. The purpose of this study was to determine the manufacture of bioplastics from pineapple peels with the addition of glycerol and chitosan. Variations of glycerol used were 5%, 10%, 15%, 20%, 25% and variations of chitosan used were 0%, 1%, 2%, 4%, 5%. Bioplastic parameters measured in this study included thickness, tensile strength, and water resistance tests. The best bioplastic results were obtained by adding 5% chitosan and 5% glycerol, with the physical properties of biplastic, namely a thickness of 0.17 mm, a tensile strength of 40.9 MPa, and a water resistance of 100%.
Keywords: bioplastics, glycerol, chitosan, pineapple peel
Kata kunci: bioplastik, gliserol, kitosan, kulit buah nanas
Abstract
Conventional plastics that are currently often used are derived from petroleum polymers which are non-renewable and difficult to decompose by microorganisms, thus polluting the environment. Bioplastics are a solution to overcome environmental pollution caused by plastics that do not decompose easily. Bioplastics are plastics made from natural materials that can be decomposed by microorganisms. Natural materials that have the potential to be used as basic ingredients for bioplastics are pineapple peels which contain 52.05% cellulose and sugars. The purpose of this study was to determine the manufacture of bioplastics from pineapple peels with the addition of glycerol and chitosan. Variations of glycerol used were 5%, 10%, 15%, 20%, 25% and variations of chitosan used were 0%, 1%, 2%, 4%, 5%. Bioplastic parameters measured in this study included thickness, tensile strength, and water resistance tests. The best bioplastic results were obtained by adding 5% chitosan and 5% glycerol, with the physical properties of biplastic, namely a thickness of 0.17 mm, a tensile strength of 40.9 MPa, and a water resistance of 100%.
Keywords: bioplastics, glycerol, chitosan, pineapple peel