Optimization of Xylitol Production with Various Substrate Concentration, Aeration, Metanol and Nitrogen Sources Addition Utilizing Oil Palm Empty Fruit Bunch Hydrolyzates by Debaryomyces hansenii UICC Y-276 (Poster Presentation) - International Conference on Medicinal Chemistry and Timmerman Award 2013 Universitas Indonesia, 28 -29th October 2013
Luthfiyyah Mutsnaini;
Rina Mediana; Herman Sudiman; Harmita; Arry Yanuar, promotor
([Publisher not identified]
, 2013)
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ABSTRACT Xylitol is five-carbon polyol sugar which widely used as a sweetener in food and pharmaceutical.Xylitol production by chemical procedures using high pressure and temperature also neededextensive purification are less cost-effective in production. Fermentation which has more advantageswith lower cost due tocheaper substrate and the non-necessity of xylose purification. The purposes ofthis research were to find optimum condition for xylitol production with particular variable such assubstrate concentration, aeration, methanol and nitrogen sources addition. Oil palm empty fruitbunch hydrolyzates containing xylose was fermented into xylitol by Debaryomyces hansenii UICC Y-276 at room temperature. Fermentation was carried out at 200 rpm for 72 hours. Then, xylose andxylitol were determined by HPLC with RI detector and LiChrosorb® NH2 (4 mm x 125,00 mm, 5μm)column. Acetonitrile-water was used as a solvent, 20 mL sample volume was injected at flow rate of1,0 mL/min at room temperature. The optimum fermentation conditions was obtained in a state ofsemi-anaerobic condition (1 : 2.5) with 10,0 % (w/v) xylose concentration. Meanwhile with theaddition of various concentration of methanol and nitrogen sources, it was obtained that 1,5 %methanol and 0,5 % ammonium sulfate gave high yield of xylitol production. The best result for yieldxylitol production was 31,83 %. |
MK-Arry Yanuar-Optimization of Xylitol.pdf :: Unduh
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No. Panggil : | MK-Pdf |
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Penerbitan : | [Place of publication not identified]: [Publisher not identified], 2013 |
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Bahasa : | eng |
Sumber Pengatalogan : | LibUI eng rda |
Tipe Konten : | text |
Tipe Media : | computer |
Tipe Carrier : | online resource |
Deskripsi Fisik : | 5 pages |
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Lembaga Pemilik : | Universitas Indonesia |
Lokasi : | Perpustakaan UI, Lantai 3 |
No. Panggil | No. Barkod | Ketersediaan |
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MK-Pdf | 10-17-706370380 | TERSEDIA |
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