Benzoic acid and benzene quantification in non-carbonated guarana (Paullinia cupana) soft drinks commercialized in Rio de Janeiro

Benzoic acid and benzene quantification in non-carbonated guarana (Paullinia cupana) soft drinks commercialized in Rio de Janeiro

SILVA, M. M. N; PEREIRA, K. S; COELHO, M. A. Z

Pôster:

Many non-carbonated soft drinks include additives, mostly benzoic andascorbic acids, to prolong their shelf life. However, over time these compounds tend toreact, producing benzene, a known carcinogen. This study analysed, in Rio de Janeiro,the regular and low-calorie versions of three brands of commercial non-carbonatedguarana soft drinks, assessing their chemical quality. Benzoic acid and benzenequantification was carried out using, respectively, high-performance liquidchromatography (HPLC) and gas chromatography coupled to solid phase microextractionheadspace (HS-SPME-GC). In some samples, benzoic acid and benzeneconcentrations are above the thresholds established by ANVISA, in Brazil: 500 µg.mL-1in soft drinks and 5 µg.L-1 in potable water, respectively. 

Many non-carbonated soft drinks include additives, mostly benzoic andascorbic acids, to prolong their shelf life. However, over time these compounds tend toreact, producing benzene, a known carcinogen. This study analysed, in Rio de Janeiro,the regular and low-calorie versions of three brands of commercial non-carbonatedguarana soft drinks, assessing their chemical quality. Benzoic acid and benzenequantification was carried out using, respectively, high-performance liquidchromatography (HPLC) and gas chromatography coupled to solid phase microextractionheadspace (HS-SPME-GC). In some samples, benzoic acid and benzeneconcentrations are above the thresholds established by ANVISA, in Brazil: 500 µg.mL-1in soft drinks and 5 µg.L-1 in potable water, respectively. 

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DOI: 10.5151/cobeq2018-PT.0195

Referências bibliográficas

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Como citar:

SILVA, M. M. N; PEREIRA, K. S; COELHO, M. A. Z; "Benzoic acid and benzene quantification in non-carbonated guarana (Paullinia cupana) soft drinks commercialized in Rio de Janeiro", p-709-712. In: . São Paulo: Blucher, 2018.
ISSN 23591757, DOI 10.5151/cobeq2018-PT.0195