Biodegradabilitas Polikarboksilat Dari Asam Alginat dan Tapioka
<p>Abundantly occurring carbohydrates in nature can be used to obtain functional and biodegradable polycarboxylate for its application in various industrial fields. Partially-dicarboxylated of carbohydrate in alginic acid and tapioca with dicarboxylation degree from 13 to 78 mol% were prepared...
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| Format: | Article |
| Language: | Indonesian |
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Balai Riset dan Standardisasi Industri Padang
2013-06-01
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| Series: | JLI: Jurnal Litbang Industri |
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| Online Access: | http://ejournal.kemenperin.go.id/jli/article/view/619 |
| Summary: | <p>Abundantly occurring carbohydrates in nature can be used to obtain functional and biodegradable polycarboxylate for its application in various industrial fields. Partially-dicarboxylated of carbohydrate in alginic acid and tapioca with dicarboxylation degree from 13 to 78 mol% were prepared. The biodegradability of dicarboxylated alginic acid and tapioca, evaluated by biochemical oxygen demand (BOD), depended on dicarboxylation degree. Dicarboxylated alginic acid and tapioca containing high remaining glucopyranose groups showed excellent biodegradation, though dicarboxylated alginic acid with the dicarboxylation degree of 56 mol% was no longer biodegradable. However, dicarboxylated tapioca was still biodegrade up to the dicarboxylation degree of 74 mol%.</p><p><strong>ABSTRAK </strong></p><p><strong></strong>Karbohidrat yang terdapat secara melimpah di alam dapat digunakan untuk membuat polikarboksilat fungsional dan biodegradabel yang dapat dipakai di berbagai bidang industri. Dikarboksilasi-sebagian telah dilakukan terhadap karbohidrat dalam asam alginat dan tapioka, menghasilkan polimer terdikarboksilasi dengan derajat dikarboksilasi 13-78 mol%. Biodegradabilitas asam alginat dan tapioka terdikarboksilasi, dihitung berdasarkan kebutuhan oksigen untuk aktivitas biokimia (BOD), tergantung pada derajat dikarboksilasi. Asam alginat dan tapioka terdikarboksilasi dengan sisa gugus glukopiranosa yang tinggi dapat terdegradasi dengan baik. Asam alginat terdikarboksilasi pada derajat dikarboksilasi 56 mol% sudah tidak mengalami biodegradasi lagi, namun tapioka terdikarboksilasi masih dapat mengalami biodegradasi sampai derajat dikarboksilasi 74 mol%.</p> |
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| ISSN: | 2252-3367 2502-5007 |