Effect of pretreatment on production of citric acid from oil palm empty fruit bunches as substrate by wild aspergillus niger

Bari, Md. Niamul and Alam, Md. Zahangir and Muyibi, Suleyman Aremu and Jamal, Parveen and Al-Mamun, Abdullah and Samiur Rashid, Md. Shah (2008) Effect of pretreatment on production of citric acid from oil palm empty fruit bunches as substrate by wild aspergillus niger. In: 22nd Symposium of Malaysian Chemical Engineers (SOMChE 2008), 2 - 3 December 2008, Kuala Lumpur.

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Abstract

An investigation was carried out to evaluate the effect of pretreatment of oil palm empty fruit bunches (EFB) as new substrate for the production of citric acid through solid state bioconversion (SSB) in laboratory scale by Aspergillus niger. The experiment was carried out to observe the productivity of citric acid with treated and non-treated EFB in 250 ml Erlenmeyer flasks. The result obtained through this study showed that the production of citric acid increased due to the pretreatment in longer bioconversion time. The maximum production of citric acid of 183.702.5 g/kg of dry EFB with the production rate of 18 g/kg-day was obtained from EFB treated by boiling in water after 10 days of bioconversion. However, the production of citric acid of 1210.7 g/kg of dry EFB with the production rate of 20.2 g/kg-day was higher until 6 days of bioconversion from non-treated EFB that could be economically feasible, technically viable considering the pretreatment cost and shorter production duration

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	4157/5529
Uncontrolled Keywords:	Citric acid; oil palm empty fruit bunches (EFB); pretreatment; solid state bioconversion; Aspergillus niger
Subjects:	T Technology > TP Chemical technology T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr. Md. Zahangir Alam
Date Deposited:	08 Aug 2012 15:22
Last Modified:	08 Aug 2012 15:22
URI:	http://irep.iium.edu.my/id/eprint/5529

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