Search

Schlegel’s Banded Langur, P. neglectus is an understudied primate species in Johor. However, no data were recorded on the species feeding ecology from previous study. This study aims to assess the food selection of P. neglectus in Kampung Johor Lama, Kota Tinggi, Johor. Observations were made using scan sampling techniques and identification of plants was made using dichotomous key to record and identify the plants eaten by P. neglectus in Kampung Johor Lama, Kota Tinggi, Johor. 27 species of plants were recorded from 17 families during 2 months of observation starting from July 2018 to August 2018. Plant species found in the area comprises of a mixture of mangroves plants, orchard plants, pioneer forest plants and others. A notable plants species selected by P. neglectus includes pome trees, Nephelium lappaceum, commodity plants, Elaeis guineensis and Hevea brasiliensis, mangrove plants, Rhizophora mucronate, pioneer tree species, Macaranga gigantea and others. Plants selected by P. neglectus in this study suggested a viable adaptation to human settlement in Kampung Johor Lama.

Py-GC/MS study on fast growing wood Macaranga gigantea at different temperatures has been conducted. The pyrolysis yields and chemical compounds obtained based on the pyrograms of the biomass by Py-GC analyses were compared with those obtained from batch pyrolysis experiments under similar conditions. Results show that the pyrolysis yields of Macaranga gigantea from Py-GC/MS analyses and batch reactor experiments at 300-450 °C were generally similar, ranging from 35 to 65%. Pyrolysis of the woody biomass with both techniques produced compounds which are mostly derived from pyrolysis, thermal degradation, or volatilization of lignin and cellulose/hemicellulose.

Slow pyrolysis of fast growing wood Macaranga gigantea has been studied. The product yields and chemical composition of products obtained from the experiments under different conditions (temperature, reaction time, sample mass) were described. In all cases, Macaranga gigantean gave total product yields, ranging from 45-65%. The increase in temperature and reaction time resulted in the increase in product yields. The organic phase of the pyrolysis products contained phenol and its derivatives, furans, benzene and its derivatives, eugenol and the isomers, methyl esters, aromatic ketones, poly-aromatic hydrocarbons, and carboxylic acids; these compounds were mainly derived from lignin, cellulose and hemicellulose.