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Название: Determination of reducing carbohydrates in natural honey samples by optical micrometry method
Авторы: Shchemelev, I. S.
Khasanov, D. S.
Smirnova, M. A.
Ivanov, A. V.
Ferapontov, N. B.
Tokmachev, M. G.
Дата публикации: 2022-12
Издатель: Ural Federal University
Уральский федеральный университет
Библиографическое описание: Determination of reducing carbohydrates in natural honey samples by optical micrometry method / I. S. Shchemelev, D. S. Khasanov, M. A. Smirnova, A. V. Ivanov, N. B. Ferapontov, M. G. Tokmachev // Chimica Techno Acta. — 2022. — Vol. 9, No. 4. — № 20229417.
Аннотация: The present article deals with the determination of the total amount of glucose and fructose in natural honey samples by the optical micrometry (OM) method. (Poly)vinyl alcohol spherical granules impregnated with a 0.05 mol/l borax solution were chosen as a sensitive element. It was shown that the formation of chelate esters of boron with polymer and carbohydrates is a pH-dependent process, and that the pH range 8.5–10.0 is the most appropriate for quantifying the total amount of reducing carbohydrates because glucose and fructose are undiscriminated. The impregnated polymer is not sensitive to the sucrose presence in the solution due to the absence of cis-diol fragments in it. Subsequently, the OM method was tested in the analysis of natural honey samples. The relative standart deviation in the case of OM method is less than 6%, and the results are similar to those obtained by the iodometric titration method. This makes the OM method suitable for laboratory-scale applications.
Ключевые слова: DETERMINATION OF CARBOHYDRATES
OPTICAL MICROMETRY
SENSITIVE POLYMERS
CHELATE ESTERS
ANALYSIS OF HONEY
URI: http://elar.urfu.ru/handle/10995/120162
Идентификатор РИНЦ: https://www.elibrary.ru/item.asp?id=50082614
ISSN: 2411-1414
DOI: 10.15826/chimtech.2022.9.4.17
Сведения о поддержке: This work was supported in part by the Ministry of Science and Higher Education of the Russian Federation as part of the State Assignment of the Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences and Moscow State University.
Источники: Chimica Techno Acta. 2022. Vol. 9. № 4
Располагается в коллекциях:Chimica Techno Acta

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