antioxidant activity – Page 2

Comparative evaluation of free radical scavenging activity and total metabolite profiles among 30 macrofungi species

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This study tested 30 different mushroom species to determine which ones are the best sources of natural antioxidants that can help protect the body from damage caused by harmful free radicals. Researchers grew the mushrooms in laboratory conditions and measured their antioxidant power and beneficial compounds like polyphenols and polysaccharides. Oyster-like mushrooms called Lentinula edodes and Fomitopsis pinicola showed the strongest antioxidant activity, making them promising candidates for use in health supplements and functional foods.

Isolation and Identification of Pigment-Producing Endophytic Fungi from the Amazonian Species Fridericia chica

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Scientists discovered nine types of fungi living inside an Amazonian plant called crajiru that produce colorful pigments. One fungus called Hypoxylon investiens stood out for producing a red pigment with strong antioxidant and antimicrobial properties. This discovery could help replace synthetic dyes in food and cosmetics with natural alternatives from fungi, which are easier and cheaper to produce than extracting pigments from plants.

Structural and Biological Properties of Rhamnogalacturonan-I-Enriched Pectin Isolated from Cardamine tangutorum and Cardamine macrophylla

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Shigecai, a traditional vegetable eaten by Tibetan and Qiang communities, contains special fiber-like compounds called pectins that may be beneficial for health. Researchers found these compounds can help fight free radicals in the body, support healthy gut bacteria, and boost immune function. The study suggests these plants could be developed into health supplements and functional food ingredients.

From Mushrooms to Molecules: Exploring Depsidones in Ganoderma lucidum for Antioxidant and Anticancer Applications

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Researchers studied a medicinal mushroom called Ganoderma lucidum to identify compounds that could fight cancer. They found nine rare compounds called depsidones that showed promise against different types of cancer cells, including liver, colon, breast, and lung cancer. The compounds were shown to work by binding to cancer-related proteins, suggesting they could be developed into new cancer treatments.

Extraction Optimization and Bioactivity of Polysaccharides from Ganoderma leucocontextum Spores

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Researchers developed an improved method to extract beneficial polysaccharides from Ganoderma leucocontextum (white Ganoderma), a rare mushroom from the Tibetan plateau. The extracted compound GLSP-A1 showed strong anti-inflammatory effects by reducing inflammatory markers and reduced signs of aging in test organisms by decreasing harmful reactive oxygen species and cellular aging pigments. This work suggests the mushroom polysaccharide could potentially be used in dietary supplements to help slow aging.

Physicochemical properties and fermentation characteristics of a novel polysaccharide degraded from Flammulina velutipes residues polysaccharide

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Researchers developed a new method to break down a large mushroom polysaccharide from golden needle mushroom plant residues into smaller, more useful molecules. The smaller version works better as an antioxidant and helps feed beneficial gut bacteria, producing beneficial compounds that support digestive health. This discovery could lead to new functional food products and health supplements using mushroom waste that would otherwise be discarded.

Domestication Cultivation and Nutritional Analysis of Hericium coralloides

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Researchers successfully grew a rare medicinal mushroom called Hericium coralloides from a wild sample found on the Tibetan Plateau. The mushroom is nutrient-rich, containing good amounts of protein and fiber while being low in fat, making it a healthy food choice. The mushroom’s compounds showed strong antioxidant properties and the ability to slow the growth of certain cancer cells, particularly breast cancer cells, suggesting potential health benefits.

Bioactive Metabolites from the Fruiting Body and Mycelia of Newly-Isolated Oyster Mushroom and Their Effect on Smooth Muscle Contractile Activity

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Researchers isolated a new oyster mushroom strain and studied how it affects digestive system health. They compared the fruiting body and mycelium (root-like structure) and found that water extracts of the fruiting body were rich in beneficial compounds like β-glucans and antioxidants. When tested on stomach muscle tissue, these extracts caused muscle contractions in a dose-dependent manner, suggesting potential benefits for digestive function. This discovery could lead to new natural supplements supporting gut health.

Therapeutic Potential of Bioactive Compounds in Edible Mushroom-Derived Extracellular Vesicles: Isolation and Characterization of EVs from Pleurotus eryngii

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Researchers isolated tiny particles called extracellular vesicles (EVs) from a medicinal mushroom called king oyster mushroom (Pleurotus eryngii). These EVs act like natural delivery packages containing beneficial compounds like antioxidants and anti-inflammatory molecules. The study found that EVs from mushroom mycelium (the root-like part) were purer and more potent than those from the mushroom cap, with strong abilities to neutralize harmful free radicals in the body.

The release patterns and potential prebiotic characteristics of soluble and insoluble dietary fiber-bound polyphenols from pinot noir grape pomace in vitro digestion and fermentation

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This study examined how grape pomace dietary fiber and its bound polyphenols are broken down in the digestive system and colon. Researchers found that soluble fiber was particularly effective at releasing beneficial compounds that feed healthy gut bacteria and produce short-chain fatty acids important for health. The fiber types promoted beneficial bacteria like Bifidobacterium while reducing harmful bacteria, suggesting grape pomace could be a valuable ingredient in functional foods to support digestive and overall health.

Research Topic: antioxidant activity