Rapid method for the determination of citrate, phosphate and sulfite in seafood by capillary zone electrophoresis

被引：28

作者：

Goncalves, Samantha ^{[1
]}

Alves, Victor Rodrigues ^{[1
]}

Perez, Saul Ovalle ^{[1
]}

Ferreira, Marli ^{[2
]}

Daguer, Heitor ^{[3
]}

Leal de Oliveira, Marcone Augusto ^{[4
]}

Micke, Gustavo Amadeu ^{[1
]}

Vitali, Luciano ^{[1
]}

机构：

[1] Univ Fed Santa Catarina, Dept Chem, Campus Reitor Joao David Ferreira Lima S-N, BR-88040900 Florianopolis, SC, Brazil

[2] Silesian Tech Univ, M Strzody 9, PL-44100 Gliwice, Poland

[3] Brazilian Minist Agr Livestock & Food Supply MAPA, Fed Agr Def Lab SLAV SC LFDA RS, Rua Joao Grumiche 117, BR-88102600 Sao Jose, SC, Brazil

[4] Univ Fed Juiz de Fora, Dept Chem, Rua Jose Lourenco Kelmer S-N,Campus Univ, BR-36036900 Juiz De Fora, MG, Brazil

来源：

FOOD CHEMISTRY | 2020年 / 321卷

关键词：

Food additives; Indirect method; Quality control; Routine analysis; Separation method; CHROMATOGRAPHY; FISH; UV; POLYPHOSPHATES; OPTIMIZATION; VALIDATION; BEVERAGES; PRODUCTS; SAMPLES; FOOD;

D O I：

10.1016/j.foodchem.2020.126705

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Since seafood is susceptible to decomposition, additives may be used to maintain its quality. However, some additives may be improperly used to disguise spoilage, thus resulting in food fraud. Market growth demands faster and more reliable quality control tools that incorporate the most common additives in a single analysis. This study developed a rapid analytical method for the determination of citrate, phosphate and sulfite in seafood by capillary zone electrophoresis with indirect UV-Vis detection. Electrophoretic separation was achieved in less than 3.5 min. The background electrolyte consisted of 20 mmol L-1 of benzenesulfonic acid and 45 mmol L-1 of aminocaproic acid. After validation, the method was applied for 24 seafood real samples. Citrate was found in five samples. Four samples presented higher phosphate and sulfite concentrations than those permitted by Brazilian legislation. Good analytical performance indicates that the method is a viable alternative for food control in routine analysis.

引用

页数：7

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