Medicinal Plant

2011, v.2(04) 64-67

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Optimization of Extraction Process for Oil and Gutta-percha from Key Fruit of Eucommia ulmoides Oliv.
Optimization of Extraction Process for Oil and Gutta-percha from Key Fruit of Eucommia ulmoides Oliv.

摘要(Abstract):

[Objective] The aim was to obtain high-quality long silk gutta-percha and seed oil from key fruits of Eucommia ulmoides Oliv..[Method] Key fruits of Eucommia ulmoides Oliv.were taken as the raw materials.After treated by diluted alkaline and cellulase,the key fruits of Eucommia ulmoides Oliv.were extracted by petroleum ether,and petroleum ether combing with ultrasonic wave,respectively.And they were compared with the conventional method using petroleum ether directly after breaking up the key fruits.[Result] The optimal extraction condition for key fruits of Eucommia ulmoides Oliv.was:using 0.50% NaOH to remove stratum corneum under 70 ℃ and destroying the cell wall by cellulase with pH 4 under 40 ℃.In comparison with the conventional extraction process,the oil yield and gutta-percha yield were improved by 23.00% and 58.00%,respectively.After the treatment of alkali and enzymes and combining with the ultrasonic assisted extraction,the whole key fruits of Eucommia ulmoides Oliv.could produce more oils(42.00%)and gutta-percha(76.00%)than the process directly using petroleum ether to extract two materials.And the extraction time was reduced by 90.00%.[Conclusion] The suitable extracting process of seed oil and gutta-percha from key fruit of Eucommia ulmoides Oliv.could be selected according to the actual conditions.This research provided s

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基金项目(Foundation): Supported by the Project Fund of Guiyang University(200839);; the Natural Science Foundation of the Science and Technology Department of Guizhou Province(20102238)

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