نتایج جستجو برای: strain type pttc 5286 levels of aflatoxin
تعداد نتایج: 21301743 فیلتر نتایج به سال:
building on previous studies on intellectual features and learners’ grammar learning, the present study aimed at investigating whether intelligence criterion had any impact on efl learners’ english grammar learning across two intelligence levels. in the current study, the participants were divided into two experimental and control groups by administration of raven i.q. test. this led to the for...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfac...
Aflatoxins are a family of toxic, acetate-derived decaketides that arise biosynthetically through polyhydroxyanthraquinone intermediates. Most studies have assumed that aflatoxin B1 is the biosynthetic precursor of the other aflatoxins. We used a strain of Aspergillus flavus which accumulates aflatoxin B2 to investigate the later stages of aflatoxin biosynthesis. This strain produced aflatoxins...
background: due to the high toxicity of aflatoxin and its effects on public health, determination of aflatoxin level in wheat flour samples in the golestan province, north of iran was investigated. to examine the effect of seasonal changes, summer and winter sampling was performed with standard sampling methods. methods: a total of 200 flour samples were collected from 25 factories. hplc method...
Mice are resistant to aflatoxin hepatotoxicity, primarily due to high expression of glutathione S-transferases (GSTs), and in particular the GSTA3 subunit. Nuclear factor erythroid 2 related factor 2 (Nrf2) signaling, which controls a broad-based cytoprotective response, was activated either genetically or pharmacologically in an attempt to rescue GSTA3 knockout mice from aflatoxin genotoxicity...
Oxylipins, a class of oxygenase-derived unsaturated fatty acids, are important signal molecules in many biological systems. Recent characterization of an Aspergillus flavus lipoxygenase gene, lox, revealed its importance in maintaining a density-dependent morphology switch from sclerotia to conidia as population density increased. Here, we present evidence for the involvement of four more oxyli...
abstract tasks nowadays are at the center of attention in sla research. task types is one of the critical issues in this regard, their effectiveness and suitability to any particular context, their characteristics and the result they yield are among some of these issues. on the other hand, discourse markers (dms) have been very much investigated and their effectiveness in conveying the meaning...
Background and purpose: Aflatoxin M1 is a toxic compound that is placed in class IIB (carcinogenic) by the WHO- International Agency for Research on Cancer, so its monitoring in milk is a great public health issue. The purpose of this study was to determine the concentration of aflatoxin M1 in raw, pasteurized milk and samples of milk produced for school milk project in Shahrood, Iran. Mate...
background: the main aim of the present study was to evaluate the ameliorative effect of curcumin on aflatoxin-induced changes in caput and cauda epididymis of mice. materials and methods: aflatoxin was obtained by growing aspergillus parasiticus in sucrose - magnesium sulphate - potassium nitrate - yeast extract (smky) liquid medium. pure curcumin (97% purity) was purchased from hi-media labor...
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