Research Keyword: enzyme inhibition

Electrospun Membranes Loaded with Melanin Derived from Pecan Nutshell (Carya illinoinensis) Residues for Skin-Care Applications

Researchers developed new skincare membranes by combining pecan shell waste with advanced fiber technology. These membranes harness melanin from the shells to create materials with strong antioxidant and antibacterial properties that could protect skin from aging and infections. The innovation demonstrates how agricultural waste can be transformed into valuable cosmetic products that are both effective and environmentally friendly.

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

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.

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The value of microbial bioreactors to meet challenges in the circular bioeconomy

Scientists are using specially designed containers called bioreactors to grow helpful microorganisms and mushrooms that can solve environmental and health problems. These bioreactors can produce medicines like natural diabetes treatments from mushrooms, create eco-friendly plastics, clean up polluted water, and turn waste products into valuable materials. This approach is sustainable, safe, and scalable, supporting the United Nations’ goals for a healthier planet.

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Process Optimization for the Bioinspired Synthesis of Gold Nanoparticles Using Cordyceps militaris, Its Characterization, and Assessment of Enhanced Therapeutic Efficacy

Scientists successfully created tiny gold particles using an edible mushroom called Cordyceps militaris instead of harsh chemicals. These gold nanoparticles are incredibly small (just 7 nanometers) and showed impressive healing potential against bacteria, diabetes-related enzymes, and even cancer cells in lab tests. The method is environmentally friendly, safe, and could lead to new medical treatments.

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Antifungal Activity of Sesamol on Pestalotiopsis neglecta: Interfering with Cell Membrane and Energy Metabolism

Researchers found that sesamol, a natural compound found in sesame oil, effectively kills a harmful fungus that damages pine trees and other plants. The study showed that sesamol damages the fungus’s cell membranes and disrupts its energy production, ultimately killing it. These findings suggest sesamol could be developed as a natural alternative to chemical fungicides for protecting crops and forests from disease.

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Functional analysis of a novel endo-β-1,6-glucanase MoGlu16 and its application in detecting cell wall β-1,6-glucan of Magnaporthe oryzae

Scientists discovered and studied a special enzyme called MoGlu16 from rice blast fungus that breaks down a key component of fungal cell walls called β-1,6-glucan. This enzyme can be used to visualize where this cell wall component is located in the fungus at different stages of its life cycle. When applied to fungus spores, the enzyme prevents them from sprouting and forming infection structures, making it a promising candidate for developing new ways to control rice blast disease.

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Novel tyrosinase-inhibitory peptides derived from Locusta migratoria protein hydrolysates: Preparation, identification and molecular docking analysis

Scientists have discovered that peptides from locusts can effectively inhibit tyrosinase, an enzyme responsible for skin pigmentation. These peptide extracts showed strong ability to prevent melanin production, comparable to existing skin-whitening agents but with much lower toxicity to normal cells. The research identified over 1100 different peptide sequences that could be useful in cosmetic and pharmaceutical products for treating age spots, freckles, and other pigmentation issues.

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Synthesis and biological assessment of novel 4H-chromene-3-carbonitrile derivatives as tyrosinase inhibitors

Researchers developed new chemical compounds that can block tyrosinase, an enzyme responsible for producing excessive skin pigment that causes dark spots and discoloration. The most effective compound (6f) works better than kojic acid, a commonly used skin-lightening ingredient, and could lead to safer treatments for hyperpigmentation and related skin conditions. Computer simulations showed that one form of the compound fits better into the enzyme’s active site, making it more effective at preventing melanin production.

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Optimization of Ultrasonic Extraction to Obtain Erinacine A and Polyphenols with Antioxidant Activity from the Fungal Biomass of Hericium erinaceus

Researchers developed an efficient ultrasonic extraction method to obtain beneficial compounds from the lion’s mane mushroom (Hericium erinaceus), particularly a substance called erinacine A and antioxidants. The optimized process uses 80% ethanol and takes 45 minutes, producing extracts rich in antioxidants that can protect cells from damage. These extracts showed promise in protecting brain cells and could potentially help prevent or treat neurodegenerative diseases like Alzheimer’s disease.

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Hirsutanone Isolated from the Bark of Alnus japonica Attenuates Melanogenesis via Dual Inhibition of Tyrosinase Activity and Expression of Melanogenic Proteins

Researchers found that hirsutanone, a natural compound from East Asian alder bark, can reduce skin pigmentation by blocking melanin production through two mechanisms: directly inhibiting the tyrosinase enzyme and suppressing the cellular signals that trigger melanin-producing genes. In laboratory tests with both mouse and human skin cells, hirsutanone proved more effective than a related compound called oregonin at reducing melanin without harming the cells. This discovery suggests hirsutanone could potentially be developed into a treatment for pigmentation problems like age spots and melasma.

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