Research Keyword: culture optimization

Pigment production by a newly isolated strain Pycnoporus sanguineus SYBC-L7 in solid-state fermentation

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Researchers isolated a fungal strain that produces bright orange natural pigments through fermentation on wood chips and other agricultural waste. By optimizing growing conditions such as pH and moisture, they achieved high pigment yields with antibacterial properties. The pigments identified in this study showed effectiveness against harmful bacteria and could replace synthetic dyes in food, cosmetics, and textile products.

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Optimization of cultural conditions for pectinase production by Diaporthe isolate Z1-1N and its pathogenicity on kiwifruit

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Researchers studied how a fungus called Diaporthe causes soft rot in kiwifruit by producing special enzymes called pectinases that break down the fruit’s cell walls. They found the best conditions for growing these enzymes in the lab: a temperature of 28°C, neutral pH around 7.5, and 2-3 days of growth. When they extracted these pure enzymes and put them on fresh kiwifruit, the enzymes caused damage equivalent to about half the damage caused by the living fungus itself, proving these enzymes are important for disease development.

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Isolation, Identification, Biological Characterization, and Pathogenicity of Entomopathogenic Fungus from the Larvae of the Evergestis extimalis (Scopoli) (Lepidoptera: Pyralidae)

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Scientists discovered a fungus called Mucor hiemalis that naturally infects and kills a harmful rapeseed pest known as Evergestis extimalis. They identified the fungus, found the best conditions for growing it in the lab, and tested how well it kills the pest larvae at different life stages. The results show this fungus could be used as a natural, environment-friendly alternative to chemical pesticides for protecting rapeseed crops.

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Identification and Biological Characteristics of Alternaria gossypina as a Promising Biocontrol Agent for the Control of Mikania micrantha

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Scientists discovered that a fungus called Alternaria gossypina can effectively kill an invasive weed called Mikania micrantha that threatens ecosystems worldwide. Through laboratory testing, they identified optimal conditions for growing this fungus and confirmed it can infect and damage the weed’s leaves. This discovery offers a promising natural and environmentally-friendly alternative to chemical herbicides for controlling this problematic invasive plant species.

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