Study on Extraction and Stability of Pigment in the Cordyceps militaris Medium

ISSN: 0973-7510

E-ISSN: 2581-690X

Jie Zhang¹, Zhi-wei Fan¹ , Bin-song Wang² and Guo-cai Zhang¹

¹College of Life Sciences, Northeast Forestry University, Harbin – 150 040, China.

²Institute of Chemistry and Chemical Engineer, Heilongjiang University, Harbin – 150 080, China.

J Pure Appl Microbiol. 2013;7(Spl. Edn.: April):41-46

Received: 03/03/2013 | Accepted: 14/04/2013 | Published: 30/04/2013

Abstract

Cordyceps militaris were taken as raw material, studied of Cordyceps militaris pigment extraction and physicochemical properties of pigment. The results shown that, Cordyceps militaris pigment dissolved easily in 80% ethanol solvent, The maximum absorption wavelength of 452 nm, The optimum extraction process was extraction temperature 30°C, extraction time 3 h, pH value 5, solid-liquid ratio 1:20, in which the temperature was remarkable influencing factor. Alkaline conditions had a strong hyperchromic effect, In certain conditions light, redox agent, Zn²⁺, Mg²⁺, Cu²⁺, Mg²⁺, K⁺, Na⁺ instability had unstable characteristics. Fe³⁺ could make it fade, Food additives had irregular effect.

Keywords

Cordyceps militaris medium, Pigment, Extraction, Stability

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