Pleurotus ostreatus – Page 29

Biodiversity of Bacteria Associated with Eight Pleurotus ostreatus (Fr.) P. Kumm. Strains from Poland, Japan and the USA

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Oyster mushrooms grown in different parts of the world carry diverse communities of bacteria living inside or on their cells. Researchers identified over 34 different types of bacteria in eight oyster mushroom strains from Poland, Japan, and the USA. These bacteria likely help the mushrooms break down wood and may protect them from diseases. This discovery shows that oyster mushrooms are not solitary organisms but rather complex ecosystems hosting beneficial bacterial partners.

Fermentation With Pleurotus Ostreatus Enhances the Prebiotic Properties of Germinated Riceberry Rice

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This research shows that black-purple Riceberry rice can be made healthier by sprouting it and then fermenting it with oyster mushroom mycelium. The resulting product contains beneficial compounds called GABA and β-glucan that help healthy gut bacteria grow while preventing harmful bacteria like E. coli. This improved rice product could be used in foods for elderly people to support digestive and overall health.

Pleurotus eryngii Culture Filtrate and Aqueous Extracts Alleviate Aflatoxin B1 Synthesis

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This research demonstrates that extracts from oyster mushrooms (Pleurotus eryngii) can effectively reduce dangerous aflatoxin contamination in food and feed by up to 94%. Aflatoxins are toxic compounds produced by mold fungi that can cause serious health problems including cancer. The study shows that mushroom compounds work through multiple mechanisms including antioxidant activity and enzyme production, offering a natural and environmentally friendly alternative to harmful synthetic chemicals for protecting our food supply.

Screening of Basidiomycete Strains Capable of Synthesizing Antibacterial and Antifungal Metabolites

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Researchers tested 18 different types of wood-decay fungi (basidiomycetes) to see if they could produce natural antibiotics and antifungal compounds. They found that 16 of the 18 strains successfully produced antimicrobial substances. Five strains were particularly promising, showing strong activity against dangerous bacteria including antibiotic-resistant strains. The study identified specific chemical compounds from these fungi that could potentially be developed into new medicines.

Hydrolytic Enzymes in the Secretome of the Mushrooms P. eryngii and P. ostreatus: A Comparison Between the Two Species

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Oyster and king trumpet mushrooms produce various useful enzymes when grown on agricultural waste. Researchers compared the types and amounts of enzymes produced by two mushroom species at different growth stages. The king trumpet mushroom (P. eryngii) produced more enzymes overall than oyster mushrooms (P. ostreatus). These enzymes can be recovered from leftover mushroom substrate and used in various industries like food, pharmaceuticals, and waste treatment.

Binder Jetting 3D Printing of Biomass–Fungi Composite Materials: A Preliminary Experimental Study

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Researchers developed a new 3D printing method called binder jetting to create eco-friendly materials made from agricultural waste and fungi. The fungi’s root-like structures naturally bind plant particles together, creating a biodegradable alternative to plastic. This method produces complex shapes with better precision than previous techniques and could revolutionize sustainable manufacturing for packaging and furniture.

Establishing microbial communities to promote the growth of Pleurotus ostreatus through a top-down approach is hindered by the dominance of antagonistic interactions

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Researchers studied how to improve oyster mushroom growth by adding helpful bacteria to the growing substrate. They found that most bacteria actually compete with the mushrooms and slow their growth, making it difficult to create beneficial microbial communities using standard enrichment methods. Only one type of bacterium (Brevundimonas) showed neutral interaction with the mushrooms, while several others actively inhibited growth. The study suggests that future approaches should integrate the mushroom into the enrichment process from the beginning rather than trying to add pre-selected microbial communities afterward.

Physicochemical Characteristics of Chitosan Extracted from Pleurotus ostreatus and Its Anticancer Activity Against the MDA-MB-231 Breast Cancer Cell Line

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Researchers extracted a compound called chitosan from oyster mushrooms (Pleurotus ostreatus) and tested its ability to fight breast cancer cells. The chitosan successfully killed cancer cells by triggering apoptosis, a natural cell death process, while showing promise as a safer alternative to conventional chemotherapy. The study demonstrates that mushroom-derived compounds could have significant therapeutic potential for cancer treatment with fewer side effects than traditional drugs.

The Transformation and Protein Expression of the Edible Mushroom Stropharia rugosoannulata Protoplasts by Agrobacterium-tumefaciens-Mediated Transformation

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Researchers successfully developed a method to genetically modify the edible mushroom Stropharia rugosoannulata using Agrobacterium tumefaciens bacteria. This technique allows scientists to insert and express foreign genes in the mushroom, providing tools to study how specific genes control mushroom growth and the production of health-promoting compounds. The study demonstrates that both artificial and natural resistance markers can be used to identify successfully transformed mushrooms, offering a foundation for improving mushroom cultivation and breeding.

Development of Hybrid Pleurotus cystidiosus Strains with Enhanced Functional Properties

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Scientists created new hybrid varieties of abalone mushrooms by breeding two different strains together. These new hybrids produced more health-beneficial compounds like antioxidants and fiber-like polysaccharides than their parent strains. Two particularly promising hybrids, PA-132 and PA-054, showed the strongest antioxidant properties and could potentially be developed into functional food products for health and wellness applications.

Fungal Species: Pleurotus ostreatus