The aim of the study was to optimize the process of extraction of aflatoxins secreted by fungi of the genus Aspergillus from almonds, as well as to analyze the content of aflatoxins using high performance liquid chromatography (HPLC). An HPLC LC 2030 C3D Plus (Shimadzu) column Shim-pack GIST-HP C18 150x4.6 mm 3 µm (Shimadzu) was used at a ratio of H2O/H3C-CN = 40/60 as an eluent at a thermostat temperature of 40 degrees Celsius. Based on the analysis on a fluorescent detector RF-20A with an excitation wavelength of 365-450 nm and a flow rate of 0.5 ml/min, a directed sample volume of 10 μl, the amount of natural compounds AFB1, AGB2, AFG1, AFG2 of the aflatoxin group was determined. It has been established that the content of aflatoxins does not exceed the permissible limits and differs depending on the area of cultivation. Almonds grown in the Syrdarya region contain one and a half times more aflatoxin G2 than almonds grown in the Jizzakh region, and four times more than almonds grown in the Samarkand region.
| Mualliflar | Abdukhalil TOJIKULOV, Khabibjon KUSHIYEV, T.A. Djuraev, Hasan BEKPULATOV |
|---|---|
| Jurnal | Kimyo va kimyo texnologiyasi |
| Nashr sanasi | 2022-05-06 |
| Jild | 2022 |
| Son | 1 |
| Til | en |
| DOI | 10.70189/1992-9498.1453 |
DOI: 10.70189/1992-9498.1453 · Maqolaning asl sahifasi
The aim of the research is to establish the optimal parameters of the technological process for the production of feed, crystalline monocalcium phosphate based on defluorinated and desulphated extraction phosphoric acid…
The aim of this study is to synthesize the corresponding aromatic acetylenic alcohols by alkylation with phenylacetylene in a complex catalytic system based on Zn(OTf)2 and TBAF·3H2O for the first time with benzaldehyde…
The aim of this study was to develop and validate the quantitative determination of titration and HPLC methods and compare them in terms of reproducibility. The development of new approaches to quality control requires…
The aim of the work is the synthesis and study of aryloxyalkylamines used as corrosion inhibitors. As a result of aminomethylation of arylproporgyl ethers, phenoxybutin-2-dimethylamine and phenoxy-butin-2-diethylamine…
The aim of the research is study the mechanism of calcium silicate hydrates (CSH) interaction with an aqueous solution of copper chloride (CuCl2) to further develop optimal parameters of the technological process of…
In order to implement a reliable and environmentally safe, economically viable method of wastewater enrichment, the goal is to develop an energy- and resource-saving method of oxygen enrichment of wastewater that has…
The aim of the study is to study the chemical composition of the grain of rye "Vakhsh-116" grown in the Andijan region of the country, the analysis of its technological properties, the comparison of the chemical…
The aim of the work is to conduct gas condensate studies of the Maimanak field, to obtain complete physical and chemical characteristics of gas condensate. A set of laboratory works was carried out to study gas…
The results of researchers on the obtaining of defluoride monocalsiumphosphate using defluorinated and desulphated extraction phosphoric acid obtained from washed fured phosconcentrate and limestone are presented. The…