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Biomedical subjects

K K Sinha

Publications and source records attributed to K K Sinha.

At least 37 records · Page 2Linked to original sources

Inhibition of aflatoxin production & growth of Aspergillus flavus by eugenol & onion & garlic extracts.

Efficacy of natural non-toxic materials including extracts of onion and garlic as well as eugenol was tested against aflatoxin production by A. flavus in liquid SMKY medium and in maize grains. Maximum inhibition in the mycelial growth occurred with garlic extract (61.94%), whereas inhibition of aflatoxin production was highest (60.44%) due to onion extract. Eugenol was most suitable for inhibiting aflatoxin production (60.35%) on maize grains.

Aflatoxins↗

Aflatoxin contamination of some common drug plants.

This paper deals with the natural occurrence of aflatoxins in some common drug plants collected from storehouses in Bihar, India. Of 15 samples analyzed, 14 were aflatoxin positive. The highest level of aflatoxin contamination was detected in the seeds of Piper nigrum (1.20 micrograms/g), followed by the level detected in the seeds of Mucuna prurita (1.16 micrograms/g), and the lowest level was detected in the bark of Acacia catechu (0.09 micrograms/g). Of 158 isolates of Aspergillus flavus obtained from as many samples of drug plants, 49 were found to be toxigenic. The amount of aflatoxin B1 elaborated by the toxigenic isolates was in the range of 0.86 to 5.24 micrograms/ml of culture filtrate.

Aflatoxins↗

Aflatoxin contamination of maize in flooded areas of Bhagalpur, India.

Maize in flood-affected areas in the Bhagalpur district of India in 1985 demonstrated heavy infestations of Aspergillus flavus and aflatoxins. Sixty samples collected from various field lots were positive in the bright greenish yellow fluorescence test. However, only 42 of those samples were found to be contaminated with deleterious levels of aflatoxins. Factors affecting aflatoxin contamination are discussed.

Aflatoxins↗

Tuberous sclerosis.

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Child, Preschool↗

Incidence of mycotoxins in maize grains in Bihar State, India.

A regular survey of some maize-growing areas of Bihar state, India, for three consecutive years (September 1984 to September 1986) revealed heavy infestations of mycotoxin-producing fungi with different maize samples. Aflatoxin-producing fungi had the highest frequency of occurrence in all the cases and aflatoxins were the most common mycotoxins elaborated by these fungi. Maize samples of the Kharif crop had a greater incidence of aflatoxins (47%) than the samples of rabi crop (17%). Stored maize grains also had a high incidence of aflatoxins (43%). Most of the contaminated samples contained aflatoxins at levels above 20 micrograms/kg.

Aflatoxins↗

Monitoring and identification of aflatoxins in wheat, gram and maize flours in Bihar state (India).

The occurrence of aflatoxins in some common food commodities: wheat, gram and maize flours is reported. Of the total 416 collections during three years (1987-1989) 162 were recorded to be aflatoxin-positive. The incidence of aflatoxins was maximum in the samples of 1987. Most of the contaminated samples contained aflatoxins at levels above 20 micrograms/kg. The environmental conditions and traditional agronomic and storage practices relating to aflatoxin incidence are discussed.

Aflatoxins↗