| abstract |
Primary normal aliphatic higher alcohols are selectively recovered with a high efficiency by contacting sugarcanes, or products obtained from the sugarcanes, or processed products from production of sugar as an extraction raw material with a fluid in a subcritical or supercritical state as an extractant, thereby extracting a trace amount of primary normal aliphatic higher alcohols contained in the extraction raw materials as an extract and separating the extracted alcohols from the extract. |