Optimization of extracting process of waxes from cold-break apple peel by supercritical CO2 and analysis of the composition

doi:10.13386/j.issn1002-0306.2012.22.076

Optimization of extracting process of waxes from cold-break apple peel by supercritical CO2 and analysis of the composition[J]. Science and Technology of Food Industry, 2012, (22): 312-315. DOI: 10.13386/j.issn1002-0306.2012.22.076

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Optimization of extracting process of waxes from cold-break apple peel by supercritical CO2 and analysis of the composition

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The extraction condition of waxes from cold-break apple peel by supercritical CO₂ extraction technology was studied and the composition of apple waxes was analyzed by GC-MS.The optimum condition of supercritical CO₂ were as follows:extraction pressure 35MPa, extraction temperature 50℃, raw material particle size>100 mesh, extraction time 1.5h.Under optimal conditions, the yield of apple waxes was 2.081%.36 compounds of apple waxes were detected.Main ingredients were hydrocarbons and esters which account for 41.44% and 37.41% respectively of all the detected compounds.Alcohols, fatty acids, ketones, β-sitosterol and friedelin were also detected.

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Science and Technology of Food Industry

Optimization of extracting process of waxes from cold-break apple peel by supercritical CO2 and analysis of the composition

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