Publications by authors named "Paranidharan Vaikuntavasan"

Foodborne illnesses pose a serious threat to public health, with increasing global incidence rates driven by factors such as rising meat consumption. Rapid detection of foodborne pathogens in meat is critical for preventing outbreaks. This study investigates the potential of gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) for identifying biomarkers and spectral fingerprints indicative of foodborne pathogens in raw chicken meat.

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Senna, a medicinal herb, is highly susceptible to aflatoxin contamination, which often limits the export value of the final products due to the regulatory limits of importing countries. Presence of aflatoxin B1 (AFB) was investigated in 229 senna pod samples at various stages from field to storage over three years. Higher incidence of AFB was revealed during the late harvest stage with a mean level of 52.

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Aspergillus flavus infection and subsequent aflatoxin contamination are considered the major constraints in senna (Cassia angustifolia Vahl.) export. Using native epiphytic yeast to control phytopathogens is a successful strategy for managing plant diseases.

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Article Synopsis
  • The study focused on using soil-associated yeasts from India's Western and Eastern Ghats to combat the growth of Aspergillus flavus, a fungus responsible for aflatoxin contamination in food.
  • A total of 45 yeast isolates were tested, with 12 showing effective inhibition of A. flavus; these included species like Saccharomyces cerevisiae and Pichia kudriavzevii.
  • The selected yeast strains, particularly S. cerevisiae, demonstrated significant suppression of A. flavus growth and aflatoxin B production, with identified volatile compounds showing antimicrobial properties that could serve as potential biocontrol agents.
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Sorghum downy mildew (SDM), caused by the biotrophic fungi threatens maize production worldwide, including India. To identify quantitative trait loci (QTL) associated with resistance to SDM, we used a recombinant inbred line (RIL) population derived from a cross between resistant inbred line UMI936 (w) and susceptible inbred line UMI79. The RIL population was phenotyped for SDM resistance in three environments [E1-field (Coimbatore), E2-greenhouse (Coimbatore), and E3-field (Mandya)] and also utilized to construct the genetic linkage map by genotyping by sequencing (GBS) approach.

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Senna (Cassia angustifolia Vahl.) is a medicinal crop with laxative properties, and it has significant demand in the global pharmaceutical market. Senna pods are highly susceptible to aflatoxin contamination, and the successful export of pods is hindered due to the regulatory limits of importing countries.

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Background: Aflatoxin contamination of various foodstuffs and agricultural commodities is a major problem worldwide. Several strategies have been reported for the detoxification of aflatoxins in contaminated foods and feeds, but all these methods have their own shortcomings. Traditional medicinal plants are potential sources of aflatoxin-detoxifying compounds.

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