Research Keyword: nutrient competition

Biocontrol of Cheese Spoilage Moulds Using Native Yeasts

This research explores using naturally occurring yeasts found in cheese to prevent mould spoilage, offering a chemical-free alternative to current preservatives. Scientists tested 84 yeast strains and identified the most promising ones that can inhibit growth of three common spoilage moulds through different mechanisms like enzyme production and nutrient competition. Two yeast strains, Geotrichum candidum GC663 and Pichia jadinii PJ433, showed particularly strong potential for protecting cheese quality and extending shelf life when tested in actual cheese.

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Interactions Between Morel Cultivation, Soil Microbes, and Mineral Nutrients: Impacts and Mechanisms

This study examined how growing morel mushrooms affects the soil they’re planted in. Researchers found that different morel species had different effects on soil bacteria and fungi, with some species dramatically reducing the variety of fungi present. The study also discovered that morel growth depletes certain nutrients like boron while accumulating calcium, and that calcium levels are closely linked to how well morels grow.

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Evaluating the Role of Nutrient Competition in Debaryomyces hansenii Biocontrol Activity Against Spoilage Molds in the Meat Industry

This research examined how a beneficial yeast called Debaryomyces hansenii prevents dangerous molds from growing on cured meat products. Scientists compared different strains of this yeast and tested whether it works by competing with molds for nutrients. While the yeast successfully stopped mold growth and spore production, nutrient competition wasn’t the main reason—other mechanisms like direct interactions between the microorganisms were more important. This suggests D. hansenii could be a natural alternative to chemical preservatives in the meat industry.

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