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Production of Chlorogenic Acid and Its Derivatives in Hairy Root Cultures of Stevia rebaudiana

Author:
Fu, Xiao   Yin, Zhong-Ping   Chen, Ji-Guang   Shangguan, Xin-Chen   Wang, Xiaoqiang   Zhang, Qing-Feng   Peng, Da-Yong   


Journal:
Journal of Agricultural and Food Chemistry


Issue Date:
2015


Abstract(summary):

Chlorogenic acid and its derivatives (CADs) are valuable bioactive plant secondary metabolites with many health benefits. In the present study, Stevia rebaudiana hairy root cultures were established, and the culture conditions for the production of CADs were optimized. The hairy roots were induced by coculture of S. rebaudiana leaves and Agrobacterium rhizogenes (C58C1) after infection, which were further verified by PCR detection of rolB and rolC genes. HPLC-MS and HPLC analysis showed that chlorogenic acid (3-caffeoylquinic acid, 3-CQA), 3,5-dicaffeoylquinic acid (3,5-CQA), and 4,5-dicaffeoylquinic acid (4,5-CQA) were the major CADs in the hairy roots. Eight single roots with rapid growth rate were selected. Among them, T3 had the highest yield of CADs. B5 medium supplemented with 40 g/L sucrose was more suitable for the production of CADs than others. Under optimal culture conditions, the total content of these three compounds reached 105.58 mg/g and total yield was 234.40 mg/100 mL.


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