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Effect of temperature on aflatoxin production in Mucuna pruriens seeds
1Medicinal Plants Research Laboratory, University Department of Botany, Bhagalpur University, India.
Abstract:
This paper describes the effect of temperature on the level of aflatoxin production in Mucuna pruriens seeds. The highest level of aflatoxin B1 (1.75 micrograms/g) was detected in the samples incubated at 25 degrees C for three weeks. At 20, 30, and 35 degrees C, aflatoxin levels were 0.30 to 0.56, 0.37 to 1.20, and 0.26 to 0.65 micrograms/g, respectively. The lowest concentration of aflatoxin B1 (0.10 to 0.29 microgram/g) was produced at 15 degrees C.
Insights
Temperature significantly impacts aflatoxin B1 production in Mucuna pruriens seeds. Optimal conditions for high aflatoxin B1 levels were observed at 25°C, while lower temperatures reduced fungal toxin accumulation.
Area of Science:
- Agricultural Science
- Mycology
- Food Safety
Background:
- Mucuna pruriens seeds are a valuable crop, but susceptible to fungal contamination.
- Aflatoxins are toxic secondary metabolites produced by Aspergillus fungi, posing health risks.
- Understanding the influence of environmental factors on aflatoxin production is crucial for food safety.
Purpose of the Study:
- To investigate the effect of varying temperatures on aflatoxin B1 production in Mucuna pruriens seeds.
- To determine the optimal temperature for aflatoxin B1 biosynthesis in this matrix.
Main Methods:
- Mucuna pruriens seeds were incubated at different temperatures (15°C, 20°C, 25°C, 30°C, 35°C) for three weeks.
- Aflatoxin B1 levels were quantified using established analytical methods (e.g., HPLC).
Main Results:
- The highest concentration of aflatoxin B1 (1.75 µg/g) was detected at 25°C.
- Aflatoxin B1 production was significantly lower at 15°C (0.10–0.29 µg/g).
- Moderate levels of aflatoxin B1 were observed at 20°C, 30°C, and 35°C, with ranges of 0.30–0.56 µg/g, 0.37–1.20 µg/g, and 0.26–0.65 µg/g, respectively.
Conclusions:
- Temperature is a critical factor influencing aflatoxin B1 contamination in Mucuna pruriens seeds.
- Storage and processing temperatures should be carefully controlled to minimize aflatoxin B1 accumulation.
- Further research into other environmental factors affecting fungal growth and toxin production is warranted.