Dataset Information

Determination of metal ion content of beverages and estimation of target hazard quotients: a comparative study.

ABSTRACT:

Background

Considerable research has been directed towards the roles of metal ions in nutrition with metal ion toxicity attracting particular attention. The aim of this study is to measure the levels of metal ions found in selected beverages (red wine, stout and apple juice) and to determine their potential detrimental effects via calculation of the Target Hazard Quotients (THQ) for 250 mL daily consumption.

Results

The levels (mean +/- SEM) and diversity of metals determined by ICP-MS were highest for red wine samples (30 metals totalling 5620.54 +/- 123.86 ppb) followed by apple juice (15 metals totalling 1339.87 +/- 10.84 ppb) and stout (14 metals totalling 464.85 +/- 46.74 ppb). The combined THQ values were determined based upon levels of V, Cr, Mn, Ni, Cu, Zn and Pb which gave red wine samples the highest value (5100.96 +/- 118.93 ppb) followed by apple juice (666.44 +/- 7.67 ppb) and stout (328.41 +/- 42.36 ppb). The THQ values were as follows: apple juice (male 3.11, female 3.87), stout (male 1.84, female 2.19), red wine (male 126.52, female 157.22) and ultra-filtered red wine (male 110.48, female 137.29).

Conclusion

This study reports relatively high levels of metal ions in red wine, which give a very high THQ value suggesting potential hazardous exposure over a lifetime for those who consume at least 250 mL daily. In addition to the known hazardous metals (e.g. Pb), many metals (e.g. Rb) have not had their biological effects systematically investigated and hence the impact of sustained ingestion is not known.

SUBMITTER: Hague T

PROVIDER: S-EPMC2443149 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature

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Publications

Determination of metal ion content of beverages and estimation of target hazard quotients: a comparative study.

Hague Theresa T Petroczi Andrea A Andrews Paul L R PL Barker James J Naughton Declan P DP

Chemistry Central journal 20080625

<h4>Background</h4>Considerable research has been directed towards the roles of metal ions in nutrition with metal ion toxicity attracting particular attention. The aim of this study is to measure the levels of metal ions found in selected beverages (red wine, stout and apple juice) and to determine their potential detrimental effects via calculation of the Target Hazard Quotients (THQ) for 250 mL daily consumption.<h4>Results</h4>The levels (mean +/- SEM) and diversity of metals determined by I ...[more]

PMID: 18578877

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Project description:OBJECTIVE: The obesigenic and related health effects of caloric sweeteners are subjects of much current research. Consumers can properly adjust their diets to conform to nutritional recommendations only if the sugars composition of foods and beverages is accurately measured and reported, a matter of recent concern. We tested the hypothesis that high-fructose corn syrup (HFCS) used in commercial carbonated beverages conforms to commonly assumed fructose percentages and industry technical specifications, and fulfills beverage product label regulations and Food Chemicals Codex-stipulated standards. DESIGN: A high-pressure liquid chromatography method was developed and verified for analysis of sugars in carbonated beverages sweetened with HFCS-55. The method was used to measure percent fructose in three carbonated beverage categories. Method verification was demonstrated by acceptable linearity (R(2)>0.99), accuracy (94-104% recovery) and precision (RSD < 2%). RESULT: Fructose comprised 55.58% of total sugars (95% confidence interval 55.51-55.65%), based on 160 total measurements by 2 independent laboratories of 80 randomly selected carbonated beverages sweetened with HFCS-55. The difference in fructose measurements between laboratories was significant but small (0.1%), and lacked relevance. Differences in fructose by product category or by product age were not statistically significant. Total sugars content of carbonated beverages showed close agreement within product categories (95% confidence interval = 0.01-0.54%). CONCLUSIONS: Using verified analytical methodology for HFCS-sweetened carbonated beverages, this study confirmed the hypothesis that fructose as a percentage of total sugars is in close agreement with published specifications in industry technical data sheets, published literature values and governmental standards and requirements. Furthermore, total sugars content of commercial beverages is consistent with common industry practices for canned and bottled products and met the US Federal requirements for nutritional labeling and nutrient claims. Prior concerns about composition were likely owing to use of improper and unverified methodology.

Dataset Information

Determination of metal ion content of beverages and estimation of target hazard quotients: a comparative study.

Background

Results

Conclusion

Publications

Determination of metal ion content of beverages and estimation of target hazard quotients: a comparative study.

Similar Datasets

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