Nur Arfa Yanti, - and Nurhayani H. Muhiddin, - PRODUKSI BIOPLASTIK DARI PATI SAGU OLEH BAKTERI AMILOLITIK LOKAL MENGGUNAKAN SUMBER NITROGEN BERBEDA. Prosiding Semirata 2015 bidang MIPA BKS-PTN Barat Universitas Tanjungpura Pontianak Hal 234 - 242.
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Abstract
Bioplastic Poly-β-hydroxybutyrate (PHB) is synthesized by bacteria and could potentially be used as a substitute for synthetic plastic. The utilization of sago starch as the cheapest carbon source, may help to reduce the cost of bioplastic PHB production. The effect of using different Nitrogen source on the PHB production from sago starch by a local amilolytic bacteria of Bacillus megaterium PSA10 was examined in this study. Nitrogen source were used in this study namely peptone, yeast extract, protease peptone, (NH4)2SO4 and NH4NO3. PHB content was determined using spectrophotometric method. The highest of PHB production and growth B.megaterium PSA10 from sago starch were obtained with using (NH4)2SO4 as N source, i.e. 50,55 % (per g cell dry matter) and 1,82 g/L cell dry, respectively. The concentration of (NH4)2SO4 as much as 1 g/L (0,1%) which produce the highest bioplastic PHB with PHB content 51,32 %. Therefore, the use of (NH4)2SO4 as Nitrogen source as much as 0,1 % is very well for PHB production from sago starch by a local amylolytic bacteria.
| Item Type: | Article |
|---|---|
| Subjects: | KARYA ILMIAH DOSEN Universitas Negeri Makassar > KARYA ILMIAH DOSEN |
| Divisions: | FAKULTAS MIPA |
| Depositing User: | Pustakawan Amaluddin Zaihal |
| Date Deposited: | 15 Jul 2023 13:41 |
| Last Modified: | 15 Jul 2023 13:41 |
| URI: | http://eprints.unm.ac.id/id/eprint/32951 |
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