Zymotechnics production astaxanthin metabolism process study
Abstract: In this paper, culture medium carbon source, nitrogen source and liquid volume were researched to find its influence on yeast production of astaxanthin. The best culture medium formula was as follows: glucose30g/l, (NH4)2SO4 1.5g/l,yeast paste 2g/l, Rocker vaccination time 40h, liquid volume 50mL. According to best culture medium formula conducts the high production of astaxanthin. Yeast growth situation were also studied. Yeast growth includes lag phase( 0-40 hours), logarithmic phase(40-50hours), stabilization period(50-60hours) and decline phase(60hours later). Causes the mycelium density change from grows slowly to rises suddenly, again arrives the stable growth the process.
关键词:虾青素,酵母菌,培养基
Keywords:Astaxanthin; Phaffia rhodozyma; Culture medium