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Optimal Supercritical CO_2 Fluid Extraction Technology of Zanthoxylum Bungeanum Maxim.Seed by Orthogonal Design

Kang Song

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Abstract

Objective:To optimize the extracting condition of Zanthoxylum seed oil by supercritical CO2 fluid extraction(SFE-CO2).Methods: The content of α-linoleic acid in Zanthoxylom bungeanum Maxim.seed and the extraction ratio of Zanthoxylom seed oil were taken as the index in orthogonal test to optimize SFE-CO2 technological condition of Zanthoxylom bungeanum Maxim.seed.Results:The influence of extracted temperature and extracted pressure on synthetic evaluation were highly significant(P0.01),while the separation autoclave Ⅰtemperature and Ⅱ temperature were not significant(P0.05).The best technological condition in SFE-CO2 for Zanthoxylum seed oil was that the extraction temperature at 45℃,extraction pressure at 35 mPa,separation autoclave Ⅰtemperature at 35℃ and separation autoclave Ⅱtemperature at 30℃.Conclusion:The optimum process obtained is steady and feasible.

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What this paper is about

Objective:To optimize the extracting condition of Zanthoxylum seed oil by supercritical CO2 fluid extraction(SFE-CO2).Methods: The content of α-linoleic acid in Zanthoxylom bungeanum Maxim.seed and the extraction ratio of Zanthoxylom seed oil were taken as the index in orthogonal test to optimize SFE-CO2 technological condition of Zanthoxylom bungeanum Maxim.seed.Results:The influence of extracted temperature and extracted pressure on synthetic evaluation were highly significant(P0.01),while the separation autoclave Ⅰtemperature and Ⅱ temperature were not significant(P0.05).The best technological condition in SFE-CO2 for Zanthoxylum seed oil was that the extraction temperature at 45℃,extraction pressure at 35 mPa,separation autoclave Ⅰtemperature at 35℃ and separation autoclave Ⅱtemperature at 30℃.Conclusion:The optimum process obtained is steady and feasible.

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Available abstract

Objective:To optimize the extracting condition of Zanthoxylum seed oil by supercritical CO2 fluid extraction(SFE-CO2).Methods: The content of α-linoleic acid in Zanthoxylom bungeanum Maxim.seed and the extraction ratio of Zanthoxylom seed oil were taken as the index in orthogonal test to optimize SFE-CO2 technological condition of Zanthoxylom bungeanum Maxim.seed.Results:The influence of extracted temperature and extracted pressure on synthetic evaluation were highly significant(P0.01),while the separation autoclave Ⅰtemperature and Ⅱ temperature were not significant(P0.05).The best technological condition in SFE-CO2 for Zanthoxylum seed oil was that the extraction temperature at 45℃,extraction pressure at 35 mPa,separation autoclave Ⅰtemperature at 35℃ and separation autoclave Ⅱtemperature at 30℃.Conclusion:The optimum process obtained is steady and feasible.

Key concepts: Zanthoxylum, Autoclave, Supercritical fluid, Extraction (chemistry), Chromatography, Supercritical fluid extraction, Cinnamomum, Chemistry

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