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

Bari, Md. Niamul and Alam, Md. Zahangir and Muyibi, Suleyman Aremu and Jamal, Parveen and Al-Mamun, Abdullah (2009) Effect of particle size on production of citric acid from oil palm empty fruit bunches as new substrate by wild aspergillus niger. In: 3rd International Conference on Chemical and Bioprocess Engineering (ICCBPE 2009), 12-14 August 2009, Kota Kinabalu, Sabah, Malaysia.

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Abstract

An investigation was carried out to evaluate the effect of different particle size of oil palm empty fruit bunches (EFB) and their distribution 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 different particle size of EFB in 250 ml Erlenmeyer flasks. The result obtained through this study showed that the 0.5 mm down graded particle of EFB gave the highest production of citric acid compared to other particle size. The maximum production of citric acid of 131.3 g/kg-EFB with the production rate of 16.4 g/kg-day was obtained from EFB with particle size of 0.5 mm after 8 days of bioconversion. Furthermore, the results of particle size distribution show that the well-graded particle size of EFB produced the highest citric acid compared to uniformly-graded and gap-graded particle.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	4157/5566
Uncontrolled Keywords:	Citric acid; oil palm empty fruit bunches (EFB); particle size; 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:	06 Nov 2011 23:11
Last Modified:	22 Nov 2011 09:29
URI:	http://irep.iium.edu.my/id/eprint/5566

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