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Aflatoxin removal of peanut meals with aqueous ethanol Scientia Agricola
Fonseca,H.; Regitano-d'Arce,M.A.B..
A preliminary approach to achieve compatible simultaneous extraction of aflatoxin and residual oil from pressed oil meals was conducted to determine the minimum amount of water to be added to ethanol versus necessary time to achieve complete removal of aflatoxin. Commercial anhydrous, 96, 93 and 90°GL ethanol were utilized in trials with Soxhlet extractors. Commercial anhydrous ethanol did not remove aflatoxin completely and the extraction efficiency in minutes was directly proportional to the amount of water present in the ethanol, as expected. Although 96°GL ethanol was efficient, alcoholic strengths between 96 and 99°GL need be evaluated to improve oil extraction, provided they do not decrease aflatoxin removal efficiency.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aflatoxin; Peanut meal; Oil meals; Removal; Extraction; Aqueous ethanol; Ethanol.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161993000100021
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Estimating the relative abundance of small mammals when there is no record of catching effort Rev. Bras. Zool.
Cerqueira,Rui; Kajin,Maja.
ABSTRACT Estimates of local population abundances, which require carefully designed sampling procedures, can provide valuable information on population size and density. Even though small mammals are one of the most widely studied vertebrate groups, many surveys have not recorded basic information to estimate local abundances, for instance catching effort. Here we suggest a simple comparative trapping frequency index that can be used as an alternative to the relative abundance index in data sets that only contain the number of species and individuals collected, thus lacking information on sampling effort. To compare trapping frequency and relative abundances we used capture records from more than four years, from seven species of rodents and two marsupial...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Mammal collections; Population index; Removal; Trapping.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000400325
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