An experimental study on the efficiency of a palm mesocarp separation machine

Mueangdee, Nongyao and Kriwuttisom, Kantapit and Wasthong, Chanitra and Punyong, Kraisorn and Kongcharoen, Jinda and Karrila, Seppo and Anurak, Sarintip (2024) An experimental study on the efficiency of a palm mesocarp separation machine. Journal of Oil Palm Research (Malaysia), 36. pp. 75-81. ISSN 2811-4701

A bench-top machine would be suitable for farmers to separate palm mesocarp from palm kernels on a small scale. The purpose of this study was to conduct an experimental investigation on the efficiency of such a machine for palm mesocarp separation from the palm kernels with the following operational steps: (1) developing a separation machine having a pressing force measurement by upgrading an existing palm mesocarp separation machine; (2) conducting an experiment to determine a suitable operating point; and (3) examining the efficiency of the newly developed separation machine and analysing the extracted palm oil properties. The results show that suitable weight loadings for the cases without heating, with steaming, and with roasting are 1000, 1500 and 1500 g, respectively, whereas the optimal pressing distance is 19 cm. Deterioration Bleachability Index (DOBI) of palm oil extracted from oil palm mesocarp in the cases of no heating, steaming and roasting are 2.99, 3.68 and 4.15, respectively. In addition, the free fatty acid (FFA) in the cases of no heating, steaming and roasting are 3.89%, 3.14% and 2.72%, respectively. Therefore, DOBI and FFA levels satisfy the standard requirements for DOBI is not less than 2.00 and for FFA is not more than 5.00%.

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Abstract

A bench-top machine would be suitable for farmers to separate palm mesocarp from palm kernels on a small scale. The purpose of this study was to conduct an experimental investigation on the efficiency of such a machine for palm mesocarp separation from the palm kernels with the following operational steps: (1) developing a separation machine having a pressing force measurement by upgrading an existing palm mesocarp separation machine; (2) conducting an experiment to determine a suitable operating point; and (3) examining the efficiency of the newly developed separation machine and analysing the extracted palm oil properties. The results show that suitable weight loadings for the cases without heating, with steaming, and with roasting are 1000, 1500 and 1500 g, respectively, whereas the optimal pressing distance is 19 cm. Deterioration Bleachability Index (DOBI) of palm oil extracted from oil palm mesocarp in the cases of no heating, steaming and roasting are 2.99, 3.68 and 4.15, respectively. In addition, the free fatty acid (FFA) in the cases of no heating, steaming and roasting are 3.89%, 3.14% and 2.72%, respectively. Therefore, DOBI and FFA levels satisfy the standard requirements for DOBI is not less than 2.00 and for FFA is not more than 5.00%.

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Item Type:	Article
AGROVOC Term:	palm kernels
AGROVOC Term:	palm oils
AGROVOC Term:	oil palms
AGROVOC Term:	gas oil separation
AGROVOC Term:	extraction
AGROVOC Term:	measurement
AGROVOC Term:	heating
AGROVOC Term:	roasting
AGROVOC Term:	steaming
AGROVOC Term:	efficiency
Geographical Term:	Thailand
Uncontrolled Keywords:	oil palm, palm mesocarp, separation machine.
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	19 Mar 2026 02:11
Last Modified:	19 Mar 2026 02:11
URI:	http://webagris.upm.edu.my/id/eprint/2679

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