antioxidant activity – Page 11

Extraction, physicochemical properties, and antioxidant activity of natural melanin from Auricularia heimuer fermentation

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Researchers optimized a method to extract melanin, a natural black pigment, from fermented wood ear mushrooms (Auricularia heimuer). Using microwave-assisted extraction with specific pH conditions, they achieved a 0.4% yield of pure melanin. The extracted melanin showed strong antioxidant properties and could be used as a natural, safe colorant and antioxidant in food and pharmaceutical products.

Chemical profile and bioactivity of essential oils from five Turkish thyme species against white mold fungal disease agent Sclerotinia sclerotiorum

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Researchers tested essential oils from five different thyme species grown in Turkey against a common plant fungus that causes white mold disease. They found that oils rich in carvacrol, particularly from Thymbra spicata and Satureja cilicica, were very effective at stopping fungal growth. These natural oils could be used as environmentally friendly alternatives to chemical pesticides in farming.

Oxidative Stress in Spinocerebellar Ataxia Type 3 and Its Attenuation by Herbal Remedies in Traditional Chinese Medicine: A Systematic Review

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Spinocerebellar ataxia type 3 is a serious brain disease that causes movement problems and gets worse over time. Current medications help but often have unpleasant side effects. This review examined fifteen traditional Chinese herbal remedies that show promise in protecting nerve cells from damage caused by oxidative stress, a harmful chemical process in the body. These herbs work through multiple protective mechanisms and may eventually be tested in patients.

Fungal β-Glucans: Biological Properties, Immunomodulatory Effects, Diagnostic and Therapeutic Applications

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β-glucans are beneficial compounds found in fungi and some plants that help your body in multiple ways. They boost your immune system, lower cholesterol and blood sugar, protect against oxidative stress, and may help fight cancer and infections. Recent research shows they could be useful as diagnostic markers for fungal infections and as vaccine boosters, especially for diseases like COVID-19.

Study on the inhibitory mechanism of fig leaf extract against postharvest Fusarium in melon

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Researchers discovered that fig leaves contain natural compounds that can prevent fruit rot caused by Fusarium fungus in melons. When applied to infected melons, the fig leaf extract kills the fungus by damaging its cell membranes and overwhelming it with harmful molecules called reactive oxygen species. This natural treatment could replace chemical fungicides that harm the environment and leave residues on food, offering a safer way to preserve melons during transport and storage.

Antioxidant and Enzyme Inhibitory Potential of Streptomyces sp. G-18 Grown in Various Media

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Researchers studied bacteria called Streptomyces that were isolated from high mountains in Nepal to see if they could produce useful compounds. They grew these bacteria in four different types of growth media and tested the resulting extracts for antioxidant properties and ability to block harmful enzymes. They found that the choice of growth medium significantly affected what compounds the bacteria produced, with one medium (R2YE) being especially effective at producing compounds that could help treat diseases like Alzheimer’s and diabetes.

Enhancing the Yield of Pleurotus ostreatus Through the Addition of Nucleotides and Nucleosides

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Researchers discovered that adding nucleotides and nucleosides to oyster mushroom growing medium significantly increases mushroom yield and nutritional value. These compounds enhanced the dietary fiber and amino acid content while helping the mushrooms break down tough plant materials more efficiently. The study suggests that nucleosides are particularly effective and could provide a simpler, safer alternative to traditional mushroom cultivation methods that involve lengthy composting processes.

Targeted metabolomic and transcriptomic reveal the regulatory network of ultrasound on polyphenol biosynthesis in tender coconut flesh during storage

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Researchers studied how ultrasound treatment affects the polyphenolic compounds (natural antioxidants) in coconut flesh during storage. By analyzing both the chemicals and genes involved, they found that ultrasound helps preserve important polyphenols like catechin and epicatechin by controlling the expression of genes that break them down. This discovery could help extend the shelf life of tender coconut products and maintain their nutritional value.

Hass Avocado (Persea americana Mill) Peel Extract Reveals Antimicrobial and Antioxidant Properties against Verticillium theobromae, Colletotrichum musae, and Aspergillus niger Pathogens Affecting Musa acuminata Colla Species, in Ecuador

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Researchers tested whether avocado peel waste could help protect banana crops from fungal diseases. They extracted beneficial compounds from avocado peels and tested them against three harmful fungi that affect bananas. The results showed the extract worked best against one type of fungus and had good antioxidant properties, suggesting avocado peel could be a natural and sustainable way to protect banana crops.

Synergistic potential and apoptosis induction of Bunium persicum essential oil and its pure components, cuminaldehyde and γ-terpinene, in combination with fluconazole on Candida albicans isolates: in vitro and in silico evaluation

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Researchers studied how Bunium persicum essential oil and two of its active components work together with the antifungal drug fluconazole to fight resistant Candida yeast infections. They found that cuminaldehyde, one of the oil’s main components, was particularly effective when combined with fluconazole and could trigger yeast cell death. These natural compounds could offer a promising new approach to treating fungal infections that have become resistant to standard medications.

therapeutic action: antioxidant activity