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Method of purifying citrus perfume compounds containing (-)-n-isopulegol and purified (-)-n-isopulegol
Method of purifying citrus perfume compounds containing (-)-n-isopulegol and purified (-)-n-isopulegol
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机译:纯化含有(-)-n-异胡薄荷醇和纯化的(-)-n-异胡薄荷醇的柑橘香料化合物的方法
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摘要
For purification, isopulegol mainly composed of (-)-n-isopulegol is deep cooled in a solvent mainly comprising acetone to obtain (-)-n-isopulegol having a chemical purity of not less than 99.7% by weight, and an optical purity of not less than 99.7%e.e. The thus-purified (-)-n-isopulegol is odorless and imparts a feeling of freshness, crispness and coolness to a citrus perfume composition when present in an amount of 3 - 30% by weight.
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