volatile organic compounds – Page 4

Evaluating the Impact of Cultivar and Processing on Pulse Off-Flavor Through Descriptive Analysis, GC–MS, and E-Nose

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Many people don’t eat pulses (beans and chickpeas) despite their health benefits because they have unpleasant flavors often described as beany or earthy. This research tested different bean varieties and cooking methods to reduce these bad flavors. They found that light-colored beans like navy beans naturally have milder flavors, and roasting beans before turning them into flour reduces earthy tastes. A quick electronic nose test works better than traditional chemical analysis for predicting which beans will taste better to consumers.

Inhibition Mechanism of Cinnamomum burmannii Leaf Essential Oil Against Aspergillus flavus and Aflatoxins

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Researchers found that cinnamon leaf essential oil is highly effective at stopping a harmful fungus called Aspergillus flavus from growing and producing dangerous toxins called aflatoxins that contaminate stored foods like peanuts. The essential oil works by damaging the fungus’s cell membranes, disrupting its energy production, and triggering harmful stress responses within the fungal cells. This natural approach offers a safe, environmentally friendly alternative to chemical fungicides for protecting stored food crops from fungal contamination.

Bacillus velezensis CNPMS-22 as biocontrol agent of pathogenic fungi and plant growth promoter

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This research demonstrates that a beneficial bacterium called Bacillus velezensis CNPMS-22 can effectively protect maize plants from fungal diseases caused by Fusarium verticillioides. When used to treat seeds before planting, this bacterium reduced disease symptoms and increased crop yield to levels comparable with chemical fungicides. The bacteria produces natural compounds that kill harmful fungi and promote plant growth, offering a safer and more sustainable alternative to chemical pesticides.

Effects of Resinous Compounds from Pine Trees on Spore Germination and Mycelial Growth of a Nematophagous Fungus, Esteya vermicola

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Researchers tested whether a beneficial fungus called Esteya vermicola could be injected into pine trees to fight pine wilt disease. However, they discovered that natural resinous compounds found in pine trees strongly inhibit the growth of this fungus. The findings suggest that trunk injection of this fungus may not be an effective treatment because the tree’s own defensive compounds prevent the fungus from establishing itself and fighting the harmful nematodes.

Strain and contact-dependent metabolomic reprogramming reveals distinct interaction strategies between Laccaria bicolor and Trichoderma

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Scientists studied how two types of soil fungi interact with each other when grown together in laboratory conditions. By analyzing the chemicals these fungi produce and release, they discovered that the fungi actively communicate and compete with each other in different ways depending on how close they are to each other. The findings show that both airborne chemicals and chemicals released into the soil play important roles in how fungi recognize friends from foes, which could help improve the use of beneficial fungi in agriculture.

Strain and contact-dependent metabolomic reprogramming reveals distinct interaction strategies between Laccaria bicolor and Trichoderma

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Scientists studied how two types of fungi interact when grown together in the laboratory. They found that different strains of Trichoderma fungi and beneficial mushroom fungi (Laccaria) communicate and compete using chemical signals that vary depending on how close they are to each other. When fungi are far apart, they use airborne chemicals, but when they touch directly, they change their chemical production dramatically. These findings could help improve the use of Trichoderma as biological pest control agents in agriculture.

Mechanistic insights into volatile odor changes in surimi gels with typical cross-linking degrees during frozen storage based on lipidomics analysis

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When surimi (a fish-based food product) is frozen for long periods, its pleasant fish aroma fades while unpleasant fishy and oily smells develop. This study found that this change happens because fats in the surimi oxidize and break down during freezing. Using faster freezing methods and chemically strengthening the surimi’s structure can help preserve the original flavor. The research identified specific fats that are responsible for creating unwanted odors, providing guidance for better preservation techniques.

Toxicity of Volatile Organic Compounds Produced by Pathogens Ewingella americana and Cedecea neteri Associated with Pleurotus pulmonarius

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Researchers discovered that two types of bacteria (Ewingella americana and Cedecea neteri) causing diseases in oyster mushrooms (Pleurotus pulmonarius) produce harmful volatile compounds. These airborne toxins, especially one called 2,4-di-tert-butylphenol, can damage mushroom tissue and stop mushroom growth at very low concentrations. This is the first study showing that these bacterial volatiles are important factors in mushroom disease, which could help farmers develop better ways to detect and prevent these infections.

Characterizing flavor determinants and α-glucosidase inhibitory components in ancient tea plants and ‘Qiancha 1’ white teas

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Researchers compared white teas made from ancient tea plants (over 100 years old) with modern cultivated tea varieties. The ancient teas had stronger floral aromas and more bitter taste due to higher levels of beneficial compounds. These compounds, particularly trans-β-ionone and β-damascenone, may help regulate blood sugar levels, making ancient tea plants valuable for both flavor and potential health benefits.

Native and Non-Native Soil and Endophytic Trichoderma spp. from Semi-Arid Sisal Fields of Brazil Are Potential Biocontrol Agents for Sisal Bole Rot Disease

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Sisal plants in Brazil are being devastated by a fungal disease called bole rot. Scientists discovered that certain beneficial fungi called Trichoderma can effectively fight this disease by producing natural compounds and directly attacking the harmful fungus. These Trichoderma fungi also help the sisal plant defend itself better against infection. The research shows that using these beneficial fungi could help save Brazil’s important sisal fiber industry.

Research Keyword: volatile organic compounds