Abstract
This study had been done to determine the optimal condition for the extraction of extractives with respect to the temperature and methanol solvent percentage on the total extractives yield from the sapwood, heartwood and bark of Acacia auriculiformis trees. All the disc components; the sapwood, heartwood and bark were air dried under shelter for 2 weeks before it was pulverized into powdered form. The pulverized samples were extracted with methanol solvent in a ratio of 1:20 (pulverized samples: solvent) for 3 h in a water bath. Different temperature (35 °C, 55 °C and 75 °C) and methanol solvent percentage (55 %, 65 % and 75 %) were used for the extraction. The total extractives yield was determined based on Zhang et al. (2007). The total extractives yield was found to be at its optimum at temperature, 75 °C and methanol solvent percentage, 75 % for all the disc components, sapwood (3.00 %), heartwood (9.81 %) and bark (18.89 %).
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Tham, M.W., Liew, K.C. Optimization of extraction conditions with respect to temperature and methanol solvent for sapwood, heartwood and bark extract of Acacia auriculiformis . J Indian Acad Wood Sci 9, 101–104 (2012). https://doi.org/10.1007/s13196-012-0073-4
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DOI: https://doi.org/10.1007/s13196-012-0073-4