Lusiana, SriEva (2014) Studi Ultrasonikasi dalam Mempercepat Proses Isolasi Kitosan dari Cangkang Rajungan (Portunus pelagicus) dan Reaksi Kitosan dengan Kurkuminoid. Sarjana thesis, Universitas Brawijaya.
Abstract
Tujuan penelitian ini adalah melakukan isolasi kitin dari cangkang rajungan laut Indonesia (Portunus pelagicus) dan mempelajari konversinya menjadi kitosan yang dipercepat dengan ultrasonikasi. Selain itu juga mempelajari reaksi kitosan dengan kurkuminoid hasil isolasi dari kunyit (Curcuma longa Linn). Stabilitas produk dilakukan dalam kondisi asam dan basa. Kitin hasil isolasi berupa serbuk berwarna putih kecoklatan yaitu sebesar 89,71%. Selain itu, konversi optimum kitin menjadi kitosan diperoleh dengan menggunakan NaOH 70% dan diultrasonikasi selama 8 jam. Nilai derajat deasetilasi (DD) kitosan yaitu 97,60%. Sedangkan reaksi kitosan dan kurkuminoid menghasilkan produk imina dan produk ini sangat sensitif terhadap asam dan basa.
English Abstract
This research aimed to isolate chitin from Indonesian marine crab shell (Portunus pelagicus) and study of its conversion to chitosan accelerated by ultrasonication. It also studied the reaction of the resulted chitosan with curcuminoids isolated from turmeric rhizome (Curcuma longa Linn). Including the performing reaction under acidic and basic condition. The result shows that the chitin from Indonesian marine crab shell (P. pelagicus) was isolated as a brownish-white powder in 89,71% yield. Moreover, its optimum conversion to chitosan was achieved using 70% of sodium hydroxide under ultrasonication for 8 hour. The value of deacetylation degree (DD) of resulted chitosan was 97,60%. Meanwhilest its reaction with curcuminoid provided an imine product. This product indicates very sensitive toward an acidic and basic conditions.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2014/310/051405308 |
| Subjects: | 500 Natural sciences and mathematics > 540 Chemistry and allied sciences |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 02 Sep 2014 13:31 |
| Last Modified: | 21 Oct 2021 05:07 |
| URI: | http://repository.ub.ac.id/id/eprint/153942 |
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