Effect of storage on seed borne aflatoxin producing mycoflora in wheat, paddy and rice

Simple item page
dc.contributor.advisorArora, Maninder
dc.contributor.authorArashpreet Kaur
dc.date.accessioned2017-11-26T04:41:30Z
dc.date.available2017-11-26T04:41:30Z
dc.date.issued2017
dc.description.abstractWheat, paddy and rice are widely cultivated cereal crops in India. In the present study, the stored samples of wheat, paddy and rice were collected from SWC (State Warehousing Corporation) Rampura Phul, CWC (Central Warehousing Corporation) Moga and FSD (Food Supply Depot) Khanna under covered storage, FSD Moga under cover and plinth storage. The storage period was 18 months. The samples were analysed after every three months, for the total incidence of mycoflora, aflatoxin contamination and physico-chemical characteristics. The seed associated mycoflora was isolated by using standard blotter paper method. Percentage (%) incidence of seed borne fungi increased during the entire storage. Asergillus sp. was recorded at maximum level, followed by Rhizopus sp. and Penicillium sp. Aflatoxins were analysed qualitatively and quantitatively by using Pressure Mini Column method and Liquid Chromatographic method, respectively. The incidence of aflatoxin contamination increased during the storage. Aflatoxin contamination was found Below Detection Limit (Method Detection Limit = 5µg/kg) for all the samples, which showed positive results for aflatoxin contamination during qualitative assessment. During the entire storage, the moisture content of wheat, paddy and rice samples increased significantly (P < 0.05). The moisture content of all the samples was found to be less than 12 %. The level of protein, fat, fibre and ash content of these cereals decreased significantly (P < 0.05), while the decrease in carbohydrate content was non-significant. The incidence of seed borne mycoflora, aflatoxin contamination and nutritive losses were higher in Khanna, followed by that in Moga and Rampura Phul. The samples taken from CAP storage had higher incidence of mycoflora, aflatoxin contamination and nutritive losses as compared to that in the covered storage. Hence, covered storage was better for retaining the nutritive value of stored grains and maintaining the microbiological quality.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810036466
dc.keywordsStored grains, Seed borne mycoflora, Aflatoxin, Storage conditions, Physico-chemical characteristicsen_US
dc.language.isoenen_US
dc.pages62en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemEffect of storage on seed borne aflatoxin producing mycoflora in wheat, paddy and riceen_US
dc.subMicrobiologyen_US
dc.subjectnullen_US
dc.themeseed borne aflatoxin producing mycoflora in wheat, paddy and riceen_US
dc.these.typeM.Scen_US
dc.titleEffect of storage on seed borne aflatoxin producing mycoflora in wheat, paddy and riceen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Arashpreet Kaur Final Thesis CD.pdf
Size:
1.4 MB
Format:
Adobe Portable Document Format
Description:
M.Sc.
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Thesis