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H Haryanto
Universitas Muhammadiyah Surakarta
Humanities Computer Science & IT Environmental Science Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology

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Pengaruh Penambahan Kitosan dan Sorbitol pada Pembuatan Film Bioplastik dari Biji Alpukat terhadap Karakteristik Bioplastik Jenny Handayani; H Haryanto
Prosiding University Research Colloquium Proceeding of The 12th University Research Colloquium 2020: Mahasiswa Student Paper
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Penggunaan plastik dalam kehidupan sehari-hari tidak dapat dihindari, plastik sintetik sendiri menyebabkan pencemaran dan kerusakan bagi lingkungan hidup, untuk mengatasi permasalahan tersebut dapat dilakukan dengan mensintesis plastik dari bahan-bahan yang lebih ramah lingkungan atau biasa disebut bioplastik. Dalam penelitian ini bahan yang akan digunakan adalah tepung pati, kitosan, dan sorbitol. Tepung pati yang digunakan berasal dari limbah biji buah alpukat. Penelitian ini menggunakan metode rancangan acak lengkap 2 faktor yakni, 3 variasi massa kitosan yaitu 0,5; 1; 1,5 gram dan 3 variasi volume sorbitol yaitu 1,5; 2; 2,5 mL. Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan kitosan dan sorbitol terhadap karakteristik bioplastik yakni nilai kuat tarik, elongasi, dan degradasi plastik. berdasarkan penelitian yang telah dilakukan diperoleh hasil bahwa penambahan kitosan dan sorbitol berpengaruh terhadap karakteristik plastik. Dengan hasil uji kualitas kuat tarik terbaik pada plastik dengan komposisi massa kitosan 1,5 gram dan sorbitol 1,5 mL sebesar 1,55 Mpa. persentase elongasi terbaik pada plastik dengan komposisi kitosan 0,5 gram dan Sorbitol 2,5 mL yakni sebesar 3,38%. Dan kemapuan biodegradasi terbaik pada plastik dengan komposisi kitosan 0,5 gram dan sorbitol 25 mL yakni selama 6 hari.
Pengaruh Penambahan Kitosan dan Gliserol Terhadap Karakteristik Film Bioplastik dari Pati Biji Nangka Umi Ermawati; H Haryanto
Prosiding University Research Colloquium Proceeding of The 12th University Research Colloquium 2020: Mahasiswa Student Paper
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Plastic is one of important thing in daily life. The problems of conventional plastics are taking decades to degrade in nature and are produced by non-renewable sources like petroleum, coal and natural gas. Bioplastics have potential to reduce the problems of plastic waste because of the environmental friendly properties. Bioplastics are biodegradable plastic that made of renewable biomass such as starch, lignin, cellulose. Jackfruit seeds contain starch that can be used as the main ingredient of bioplastics with the addition of chitosan and glycerol to improve the mechanical properties of bioplastics. The aim of this research to obtain the effect of adding chitosan and glycerol in the making of jackfruit seed starch bioplastic films viewed from several parameters. Bioplastic was synthesized by dissolving jackfruit seed starch mixed with chitosan mass variation (1 g, 1.5 g, 2 g) and glycerol volume (15%, 35%, 55% (w / w) starch) at temperature of 70oC for 1 hour. Bioplastic sheets are tested for tensile strength, elongation at break (elongation) and biodegradation ability. The results showed that chitosan and glycerol gave an impact to mechanical properties and biodegradability. The best results of tensile strength on the addition of chitosan 1 gr and glycerol 15% (w / w starch) amounted to 9.12 MPa, the best %elongation in the addition of chitosan 1 gr and glycerol 55% (w / w starch) was 3.121% and the fastest degradation time on the addition of 1 gram chitosan and 15% (w / w starch) glycerol for 4 days.
Co-Authors Jenny Handayani Umi Ermawati