Pengembangan Biopolimer Berbahan Dasar Pati Alami dengan Penambahan Beeswax sebagai Plastik Ramah Lingkungan

Malik, Fahmi Mujahidin (2019) Pengembangan Biopolimer Berbahan Dasar Pati Alami dengan Penambahan Beeswax sebagai Plastik Ramah Lingkungan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini dibuat biopolimer berbahan dasar pati alami dengan penambahan beeswax dengan variasi konsentrasi 0%, 0,1%, 0,2%, 0,3%, 0,4%, dan 0,5%. Pati alami yang digunakan pada penelitian ini adalah pati tapioka, pati konjak, dan pati biji durian. Pembuatan biopolimer dilakukan dengan memanaskan campuran pati , beeswax, gliserol, dan air pada suhu 70oC selama 20 menit lalu dikeringkan selama 24 jam. Karakteristik biopolimer yang diamati adalah sifat mekanik, derajat penggembungan, dan biodegradasi. Hasil dari penelitian ini menunjukkan bahwa penambahan beeswax meningkatkan kekuatan tarik pada sampel berbahan dasar tapioka dan konjak dengan nilai kuat tarik maksimal didapatkan pada sampel berbahan dasar tapioka dengan konsentrasi beeswax 0,5% yaitu sebesar 4,25 MPa. Semakin tinggi konsentrasi beeswax menyebabkan penurunan derajat penggembungan pada sampel berbahan dasar konjak dan peningkatan derajat penggembungan pada sampel berbahan dasar tapioka dan biji durian. Penambahan beeswax mempercepat laju biodegradasi pada sampel berbahan dasar tapioka dan biji durian serta memperlambat laju biodegradasi pada sampel berbahan dasar konjak. Pengurangan massa tertinggi terdapat pada sampel berbahan dasar tapioka dengan konsentrasi beeswax 0,1-0,2% yaitu sebesar 80% dalam 7 hari. Biopolimer dengan bahan dasar pati konjak menghasilkan karakteristik yang optimal dengan penambahan beeswax. ===================================================================== In this study, natural starch-based biopolymers were made with the addition of beeswax with variations in concentrations of 0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5%. Natural starch used in this study is tapioca starch, konjac starch, and durian seed starch. Making biopolymers is done by heating a mixture of starch, beeswax, glycerol, and water at 70oC for 20 minutes then dried for 24 hours. Biopolymer characteristics observed were mechanical properties, degree of swelling, and biodegradation. The results of this study indicate that the addition of beeswax increases the tensile strength of tapioca and konjac-based samples with maximum tensile strength values obtained in tapioca-based samples with a concentration of beeswax 0.5%, which is 4.25 MPa. The higher concentration of beeswax causes a decrease in the degree of swelling in konjac-based samples and an increase in the degree of swelling in tapioca-based samples and durian seeds. The addition of beeswax accelerates the rate of biodegradation in tapioca and durian-based samples and slows the rate of biodegradation in konjac-based samples. The highest mass reduction was found in tapioca-based samples with beeswax concentration 0.1-0.2%, which was 80% in 7 days. Biopolymers with Konjac starch as a base produce optimal characteristics with the addition of beeswax.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: biopolimer, beeswax, plastik ramah lingkungan
Subjects: T Technology > TP Chemical technology > TP1140 Polymers
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Malik Fahmi Mujahidin
Date Deposited: 14 Sep 2020 07:25
Last Modified: 14 Sep 2020 07:25
URI: http://repository.its.ac.id/id/eprint/69888

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