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Mycoflora and aflatoxigenic species in derivatives of milled rice Ciênc. Tecnol. Aliment.
LIMA,Carlos A. P.; ORSI,Reinaldo B.; DILKIN,Paulo; CORRÊA,Benedito.
Thirty samples of rough rice stored for 6, 12 and 24 months in government authorized warehouses of the state of Rio Grande do Sul, Brazil, were simultaneously collected. After milling of the product, 90 samples (30 of polished rice, 30 of rice bran and 30 of rice hull) were evaluated for their mycoflora, aflatoxigenic species and aflatoxin contamination. The following fungi, listed in decreasing order of frequency, were isolated on Potato-Dextrose Agar: Aspergillus spp., Nigrospora spp., Penicillium spp.; Fusarium spp.; Mucor spp.; Cladosporium spp.; Trichosporon spp. and non-sporulated fungi. The degree of fungal contamination (colony forming units per gram of product) was lowest in polished rice, increasing progressively in samples of rice bran and rice...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aflatoxin; Aspergillus flavus; Mycoflora; Milled rice; Stored rice.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612000000100008
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Spatio-temporal analysis of insect pests infesting a paddy rice storage facility Neotropical Entomology
Trematerra,Pasquale; Paula,Maria C.Z.; Sciarretta,Andrea; Lazzari,Sonia M.N..
The study describes the temporal and spatial distribution of the insect fauna collected in a paddy rice storage facility over two years, with major emphasis on the most abundant pests. The experiment, using 19 food-bait traps, was carried out in the county of Massaranduba, State of Santa Catarina, Brazil, from November 1997 to October 1999. During the whole survey, Sitophilus oryzae (L.), a primary pest associated to stored cereals, was the most abundant species in the storage facility (28,542 specimens captured). Other beetles were collected in remarkable numbers, both primary pests, such as Rhyzopertha dominica (Fabricius) (3,931 specimens), and secondary pests, such as Cryptolestes ferrugineus (Stephens) (4,075 specimens) and Oryzaephilus surinamesis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stored rice; Sitophilus oryzae insect entomológica.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400012
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