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http://dx.doi.org/10.14480/JM.2018.16.3.162

Culture conditions of liquid spawn and the growth characteristics of Pleurotus ostreatus  

Lee, Soo-Jung (Institute of Agriculture and Life Science, Gyeongsang National University)
Kim, Hun-Hwan (Department of Food Science and Nutrition, Gyeongsang National University)
Kim, Seon-Ho (Guydam mushroom Co., Ltd.)
Kim, In-Soo (Institute of Agriculture and Life Science, Gyeongsang National University)
Sung, Nak-Ju (Department of Food Science and Nutrition, Gyeongsang National University)
Publication Information
Journal of Mushroom / v.16, no.3, 2018 , pp. 162-170 More about this Journal
Abstract
To improve the productivity of Pleurotus ostreatus, different conditions of liquid spawn culture were tested. The optimum culture conditions were potato dextrose broth, incubation temperature of $22^{\circ}C$, and pH 6. Fifteen different media ('A' to 'O') containing 0.3% soybean meal (SM) were prepared by varying sugar and glucose contents. The cultures were propagated in SM media for 14 days, at $22^{\circ}C$, and pH 6. Their absorbances were higher after 14 days of incubation in the media containing both sugar and glucose. In particular, the absorbance of media containing 5 to 20% of glucose alone ('C', 'D', 'E', and 'F') tended to increase in the incubation period. Dry cell weight was lower in media containing less than 20% sugar or glucose alone than in media containing 30% sugar ('A') or 30% glucose ('B') alone. In sawdust media, in 900 mL-bottle, the optimum inoculation volume of liquid spawn was 15 to 20 mL. The texture of the mushroom cultivated with the liquid spawn was superior to that cultivated in the solid spawn.
Keywords
Pleurotus ostreatus; Liquid spawn; Soybean meal media; Texture;
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