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Study on extraction process of alcohol-soluble ingredients from Hellgrammites(Megaloptera: Corydalidae)

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DOI: 10.23977/erej.2018.21002 | Downloads: 41 | Views: 4382


Daifang Zhang 1, Ming Pan 2, Yuyun Chen 1


1 Department of Chemical Engineering, Sichuan University of Science & Engineering, Zigong643000, Sichuan, China
2 School of Bioengineering, Sichuan University of Science & Engineering, Zigong643000, Sichuan, China

Corresponding Author

Yuyun Chen


Study the alcohol soluble ingredient extraction process of Hellgrammites and the significance of whether it can be exploited the medicinal liquor. Using the crude product of Hellgrammites, the impact factors are the ethanol concentration, the extracting time and the ratio of the material liquid. These three factors are in the three level to do the orthogonal experiments. Using the alcohol extract of Hellgrammites as the sample, the meteorological mass spectrometry and the inductively coupled mass spectrometry, qualitatively detect the composition of fatty acid and quantitatively detect the content of trace elements of Zn and Mn. The best extraction technology conditions are: the ethanol concentration is 60 percent and the extraction time is 2.5 hours. The ratio of material liquid is one contrasting fifty. The compositions of fatty acid are: palmitic acid, stearic acid, oleic acid, linoleic acid, gamma linolenic acid, arachidonic acid, and eicosapentaenoic acid. The trace elements of Zn and Mn: the trace elements in the crude products are 140.15ug per gram and 67.69ug per gram, the trace elements in the alcohol extract are 48.87ug per gram and 11.58ug per gram. Experiments show that the alcohol process is reasonable, stable and feasible. Alcohol extraction of fatty acid and the trace elements of Zn and Mn have high contents. It can be further developed for efficacy to medicinal liquor products.


Hellgrammites, Alcohol extract, Fatty acid, Trace elements


Daifang, Z., Ming, P., Yuyun, C., Ling Y., Study on extraction process of alcohol-soluble ingredients from Hellgrammites(Megaloptera: Corydalidae). Environment, Resource and Ecology Journal (2018) 2: 22-30.


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