China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (9): 3333-3342.doi: 10.16431/j.cnki.1671-7236.2022.09.007

• Physiological and Biochemical • Previous Articles     Next Articles

Extraction and Content Detection of Cordycepin from Cordyceps militaris Residual Medium by Hydrothermal Reflux Method

PENG Zhiping, ZHANG Jingyan, GUO Zhiting, WANG Lei, ZHANG Kai, ZHANG Kang, WANG Guibo, QIU Zhengying, WANG Xuezhi, LI Jianxi   

  1. Engineering Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China
  • Received:2022-02-16 Online:2022-09-05 Published:2022-08-24

Abstract: 【Objective】 The purpose of this study was to explore the optimal extraction conditions of cordycepin from Cordyceps militaris residual medium by the hydrothermal reflux method.【Method】 The single factor design and the orthogonal experiment design were conducted according to four factors including the liquid to material ratio, extraction repetitions, extraction temperature and extraction time, and the cordycepin content was measured by high-performance liquid chromatography (HPLC) method, which were used to decide the optimal extraction parameters of cordycepin from Cordyceps militaris residual medium by the hydrothermal reflux method.【Result】 The results of methodology showed that the relative standard deviation (RSD) of precision, repeatability, and stability for HPLC detection of cordycepin content in the extract of Cordyceps militaris residual medium were less than 2%, the RSD of accuracy was 2.64%, and the standard curve had high linear correlation.The results of the orthogonal experiment showed that the order of factors affecting the extraction efficacy of the hydrothermal reflux method were extraction time, extraction repetitions, liquid to material ratio and extraction temperature, and extraction time and extraction repetitions had significant effects on cordycepin content in extract (P<0.05), while extraction temperature and liquid to material ratio had not obvious effects (P>0.05).The results of the single factors and the orthogonal experiment design showed that the optimal extraction process factors of cordycepin from Cordyceps militaris residual medium were the ratio of liquid to material 25:1, repetitions 5 times, extraction temperature 70 ℃, and extraction time 60 min, respectively.Under these extraction conditions, the cordycepin content of Cordyceps militaris residual medium was 1.48 mg/g.【Conclusion】 The optimal extraction parameters of the hydrothermal reflux method in this study could effectively extract the active components from Cordyceps militaris residual medium, the operation process was easy and practical, and the yield of the active components of the extract was stable.The results provided reference for the development of product from Cordyceps militaris residual medium.

Key words: Cordyceps militaris residual medium; cordycepin; hydrothermal reflux method; extraction process

CLC Number: