Scale-up study on the supercritical carbon dioxide sterilisation of oil palm fresh fruit bunch

Abdul Khalil H. P. S., . and Md Sohrab Hossain, . and Azhar M Easa, . and Asmah M Sofian, . and Tengku Norsalwani T. L., . and Mohd Omar A. K., . and Fatehah M Omar, . Scale-up study on the supercritical carbon dioxide sterilisation of oil palm fresh fruit bunch. pp. 64-74. ISSN 1511-2780

Existing steam sterilisation method of oil palm fresh fruit bunch (OP-FFB) requires huge quantities of water and about 30-60 of the water results in palm oil mill effluent (POME). In order to circumvent the perennial POME generation problem it requires a waterless sterilisation system of OP-FFB. The present study was conducted to determine the sterilisation efficiency of OP-FFB using a pilot scale supercritical carbon dioxide (SC-CO‚‚) technology. The sterilisation efficiency was evaluated based on the inactivation of Bacillus spp. and Aspergillus spp. in OP-FFB with varying SC-CO2 pressure (10-30 MPa) temperature (40C-80C) and treatment time (15-90 min). Complete inactivation of the microorganisms in OP-FFB was obtained after 45-90 min at treatment range of 10-30 MPa and 40C-80C. The findings of the present study reveal that the SC-CO‚‚sterilisation is a conceivable technology to be used in OP-FFB sterilisation replacing the current water steam sterilisation technology.

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Abstract

Existing steam sterilisation method of oil palm fresh fruit bunch (OP-FFB) requires huge quantities of water and about 30-60 of the water results in palm oil mill effluent (POME). In order to circumvent the perennial POME generation problem it requires a waterless sterilisation system of OP-FFB. The present study was conducted to determine the sterilisation efficiency of OP-FFB using a pilot scale supercritical carbon dioxide (SC-CO‚‚) technology. The sterilisation efficiency was evaluated based on the inactivation of Bacillus spp. and Aspergillus spp. in OP-FFB with varying SC-CO2 pressure (10-30 MPa) temperature (40C-80C) and treatment time (15-90 min). Complete inactivation of the microorganisms in OP-FFB was obtained after 45-90 min at treatment range of 10-30 MPa and 40C-80C. The findings of the present study reveal that the SC-CO‚‚sterilisation is a conceivable technology to be used in OP-FFB sterilisation replacing the current water steam sterilisation technology.

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Item Type:	Article
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Oil palm
AGROVOC Term:	Fruit
AGROVOC Term:	Sterilization
AGROVOC Term:	Steam
AGROVOC Term:	Supercritical CO2 extraction
AGROVOC Term:	Pressure
AGROVOC Term:	Temperature
AGROVOC Term:	Time
AGROVOC Term:	Bacillus
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8959

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