Sitti Fatimah Mhd Ramle, Othman Sulaiman, Rokiah Hashim, Takamitsu Arai, Akihiko Kosugi, Hisashi Abe, Yoshinori Murata, Yutaka Mori


This study presents the characterization of parenchyma and vascular bundle of oil palm (Elaeis guineensis Jacq.) trunks harvested in Ladang Pelam, Kedah, Malaysia. Samples cut from outer, middle, and inner parts of the trunks were stored in a room at a temperature of 29°C for 0, 45, and 60 days prior to any tests. Parenchyma cells and vascular bundles from each sample were manually separated for microscopic analysis. Both light microscopes and scanning electron microscope were employed to determine cell type, their distribution, and modification as a function of storage time. Based on the results of this work, the outer parts of the trunks had larger amount of vascular bundles than the inner and middle parts. Overall moisture content of the samples taken from the inner part of the trunks is significantly higher than other parts. It appears that the amount of parenchyma cells decreases while the vascular bundle increases in all three parts of the trunks with increasing storage time.

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