Characterisation of physico-chemical and antioxidant properties of oil palm trunk saps as affected by the storage time in comparison to nipa sap

Shima Jafarzadeh, . and Syazana Sulaiman, . and Fazilah Ariffin, . Characterisation of physico-chemical and antioxidant properties of oil palm trunk saps as affected by the storage time in comparison to nipa sap. pp. 75-82. ISSN 1511-2780

In this study freshly squeezed oil palm trunk sap (OPT0sap) and sap of oil palm trunk that had been stored for 60 days (OPT60sap) were characterised and compared with a nipa sap (Nsap) as a control sample in terms of their physico-chemical and functional properties. The results indicated that when the two OPT saps were compared trunk storage significantly impacted the latter saps composition. As the storage period increased the sap became darker and its sugar content increased. Further the OPT saps showed significant amounts of antioxidant contents with greater nutritional value compared to Nsap. The OPT0saps viscosity was found to be the lowest whereas the Nsaps was the highest with values of 0.87 0.07 mPa.s and 3.77 0.09 mPa.s respectively. The OPT0sap had the lowest pH whereas Nsap had the highest. In conclusion in comparison to Nsap the OPT saps demonstrated better features in terms of antioxidant capacity and higher reducing sugar content. However OPT saps had greater acidity and darker colour.

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Abstract

In this study freshly squeezed oil palm trunk sap (OPT0sap) and sap of oil palm trunk that had been stored for 60 days (OPT60sap) were characterised and compared with a nipa sap (Nsap) as a control sample in terms of their physico-chemical and functional properties. The results indicated that when the two OPT saps were compared trunk storage significantly impacted the latter saps composition. As the storage period increased the sap became darker and its sugar content increased. Further the OPT saps showed significant amounts of antioxidant contents with greater nutritional value compared to Nsap. The OPT0saps viscosity was found to be the lowest whereas the Nsaps was the highest with values of 0.87 0.07 mPa.s and 3.77 0.09 mPa.s respectively. The OPT0sap had the lowest pH whereas Nsap had the highest. In conclusion in comparison to Nsap the OPT saps demonstrated better features in terms of antioxidant capacity and higher reducing sugar content. However OPT saps had greater acidity and darker colour.

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Item Type:	Article
AGROVOC Term:	Oil palm
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Tree trunks
AGROVOC Term:	Nipa palm
AGROVOC Term:	Sap
AGROVOC Term:	analysis
AGROVOC Term:	Storing
AGROVOC Term:	Time
AGROVOC Term:	Physicochemical properties
AGROVOC Term:	Sugar content
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8958

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