Maulana, Muhammad Iqbal (2017) Studi Aktivitas Reusable Enzim Lipase dari Rhizomucor miehei dan Candida antarctica recombined Aspergillus oryzae dalam Reaksi Siklisasi Asilasi Campuran Sitronelal dan Isopulegol. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian tentang pemanfaatan enzim lipase dari Candida antartica recombined Aspergillus oryzae dan reusable enzim lipase dari Candida antartica recombined Aspergillus oryzae dan Rhizomucor miehei sebagai katalis reaksi siklisasi asilasi campuran sitronelal dan isopulegol telah dilakukan. Reaksi dilakukan pada temperatur 50oC dengan perbandingan mol sitronelal dan isopulegol 1 : 1. Sitronelal dapat tersiklisasi dengan baik membentuk isopulegol. Reaksi dengan mengggunakan fresh enzim lipase dari Candida antartica recombined Aspergillus oryzae dihasilkan % area isopulegil asetat sebesar 7.74% dengan % konversi dan % selektivitas berturut-turut sebesar 33.11% dan 23.38%. Kemudian reusable I, II, dan III enzim lipase Candida antartica recombined Aspergillus oryzae dihasilkan % area isopulegil asetat berturut-turut sebesar 18.24%, 12.98% dan 7.78% dengan selektivitasnya yaitu 20.4%, 15.07% dan 7.84%. Sedangkan pada reusable enzim lipase dari Rhizomucor miehei berturut-turut sebesar 21.36%, 9.67% dan 7.07% dengan selektivitas sebesar 55.38%, 12.96% dan 10.12%.
English Abstract
The research on utilization of lipase enzyme from Candida antartica recombined with Aspergillus oryzae and reusable lipase enzyme from Candida antartica recombined Aspergillus oryzae and Rhizomucor miehei as a catalyst on cyclization acylation reactions mixture of citronellal and isopulegol has done. The reaction is carried out at the temperature of 50oC with mol comparison of citronellal and isopulegol 1:1. Cyclized citronellal forms isopulegol. The reaction was used fresh lipase enzyme from Candida antartica recombined Aspergillus oryzae forms acetic isopulegil by 7.74% area with the percentage of selectivity is 23.38%. The reusable I, II, and III of Candida antartica lipase enzyme recombined Aspergillus oryzae generate acetic isopulegil at 18.24%, 12.98% and 7.78% area, with selectivity of 20.4%, 15.07% and 7.84%. While in reusable lipase enzyme from Rhizomucor miehei at 21%, 9.67% and 7.07% with selectivity of 55.38%, 12.96%, and 10.12%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FMIPA/2017/383/051709723 |
| Uncontrolled Keywords: | Sitronelal, Isopulegol, enzim lipase, isopulegil asetat |
| Subjects: | 500 Natural sciences and mathematics > 572 Biochemistry > 572.7 Enzymes |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Nur Cholis |
| Date Deposited: | 19 Oct 2017 04:23 |
| Last Modified: | 22 Nov 2021 06:15 |
| URI: | http://repository.ub.ac.id/id/eprint/4034 |
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