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Updated: Aug 14, 2025

Medium Preparation for the Cultivation of Microorganisms under Strictly Anaerobic/Anoxic Conditions
Published on: August 15, 2019
Cauliflower-shaped Pleurotus ostreatus cultivated in an atmosphere with high environmental carbon dioxide
Yongjie Zhang1, Yongqiang Dong1, Peng Wang1
1Department of Vegetables, College of Horticulture, China Agricultural University, Haidian District, 100193, Beijing, China.
Abstract:
Commercial aspects, physiological properties, and nutritional characteristics of Pleurotus ostreatus grown under various environmental carbon dioxide concentration ([CO2]e) conditions were assessed. As [CO2]e increased, the activity of antioxidant enzymes (catalase, peroxidase, and superoxide dismutase) in fruiting body increased, activities of succinate dehydrogenase and cytochrome c oxidase were inhibited, and malondialdehyde and adenosine triphosphate (ATP) syntheses were reduced, leading to incomplete development of pilei and stipes, or even absence of pilei. Under high [CO2]e (≥1.00%), fruiting body of P. ostreatus was morphologically altered to assume cauliflower shape. This cultivation condition resulted in high total contents of crude protein, crude fiber, and amino acids, increased levels of umami- and sweet-tasting amino acids, and reduced levels of bitter-tasting amino acids, thus enhancing the flavor of the product. In conclusion, a novel "cauliflower-shaped" mushroom (P. ostreatus) was successfully cultivated at high (≥1.00%) environmental CO2 concentration. The product has a delicious taste and high nutritional value, is relatively easy to transport and store, and has excellent potential for commercial development.
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