Impact of Extraction Methods on Extraction Efficiency of Chlorogenic Acid and Flavonoids in Forage Ramie

doi:10.11924/j.issn.1000-6850.casb15020115

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (20): 1-4.doi: 10.11924/j.issn.1000-6850.casb15020115

Impact of Extraction Methods on Extraction Efficiency of Chlorogenic Acid and Flavonoids in Forage Ramie

Liu Junhuan¹, Du Xiaohua¹, Jie Hongdong¹, Jie Yucheng^1,2, Xing Hucheng^1,2

(¹Institute of Ramie, Hunan Agricultural University, Changsha 410128; ²Hunan Provincial Key Laboratory of Corp Germplasm Innovation and Utilization, Changsha 410128)

Received:2015-02-28 Revised:2015-03-31 Accepted:2015-04-17 Online:2015-07-28 Published:2015-07-28

Abstract

Abstract: In order to study the impact of effective extraction method on extraction efficiency of chlorogenic acid and total flavonoids in ramie, the author extracted chlorogenic acid and total flavonoids of different parts of ramie varieties ‘Xiangsibi X1’ and Ningyuan quantitatively with the methods of vacuum freeze-drying extraction and hot air drying extraction. The results showed that the contents of chlorogenic acid and total flavonoids which were measured by vacuum freeze-drying extraction were higher than those by hot air drying extraction. Under the method of vacuum freeze-drying extraction, the chlorogenic acid content of nutritive roots, leaves, underground stems and stems increased more than 100%, and the total flavonoids content doubled that of hot air dried samples, the total flavonoids content of stems increased 6.08-fold especially. The chlorogenic acid and total flavonoids contents of Ningyuan ramie also substantially increased under vacuum freeze-drying extraction. Thus, when it comes to the extraction process of pharmacological components in forage ramie, the vacuum freeze-drying extraction was better than hot air drying extraction.

Liu Junhuan,Du Xiaohua,Jie Hongdong,,Jie Yucheng and Xing Hucheng. Impact of Extraction Methods on Extraction Efficiency of Chlorogenic Acid and Flavonoids in Forage Ramie[J]. Chinese Agricultural Science Bulletin, 2015, 31(20): 1-4.

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Impact of Extraction Methods on Extraction Efficiency of Chlorogenic Acid and Flavonoids in Forage Ramie

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