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- W1567349086 abstract "Nutritional supplement E471 designates number of monoglycerides and diglycerides of fatty acidsand applied in the food industry as an emulsifier-stabilizer additive. It is most often used by production of margarine, ice cream, mayonnaise, yogurts and other products with the high content of fat. The technique of gas chromatographic determination of the quantitative composition of food emulsifiers on the basis of monoglycerides (E471) was developed. The essence consists in transformation of components of sample into more flying silyl derivatives in the presence of pyridine and N-Methyl-N-(trimethylsilyl)trifluoroacetamide and the subsequent gas chromatographic determination with application of internal standards (propylene glycol and tricaprin). Theanalysis was carried out on a gas chromatograph Bruker 451 GC with a flame ionization detector, capillary column - BR-5ht (100 %-dimethylpolysiloxane). Identification of the reaction products was performed with application of a mass spectrometer Scion TQ and library of mass spectrums NIST11. Selected chromatographic conditions are characterized by a short duration of the instrument analysis (35 min) and the absence of overlapping peaks. The content of glycerin and a diglycerin, free fatty acids, mono-, di- and triglycerides in seven commercial samples is established. Keywords: emulsifier E471, monoglycerides of fatty acids, gas chromatography (Russian) DOI: http://dx.doi.org/10.15826/analitika.2015.19.2.004 A.V. Zykov 1 , V.A. Krysanov 2 , N.Ya. Mokshina 3 1 Open joint stock company Efirnoe, Alekseevka , Belgorod region, Russian Federation 2 FSEI HPE Voronezh State University, Voronezh, Russian Federation 3 N. Zhukovskii and Yu. Gagarin Air Force Academy, Voronezh, Russian Federation" @default.
- W1567349086 created "2016-06-24" @default.
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- W1567349086 date "2015-01-01" @default.
- W1567349086 modified "2023-09-25" @default.
- W1567349086 title "ГАЗОХРОМАТОГРАФИЧЕСКОЕ ОПРЕДЕЛЕНИЕ КОЛИЧЕСТВЕННОГО СОСТАВА ПИЩЕВЫХ ЭМУЛЬГАТОРОВ Е471" @default.
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