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Beverages 2018, 4(3), 60; https://doi.org/10.3390/beverages4030060

Phytochemical Properties and Heavy Metal Contents of Commonly Consumed Alcoholic Beverages Flavouredwith Herbal Extract in Nigeria

1
Department of Environmental Health, Faculty of Public Health, University of Ibadan, Ibadan 200284, Nigeria
2
Department of Human Nutrition, Faculty of Public Health, University of Ibadan, Ibadan 200284, Nigeria
*
Author to whom correspondence should be addressed.
Received: 20 May 2018 / Revised: 31 July 2018 / Accepted: 6 August 2018 / Published: 14 August 2018
(This article belongs to the Special Issue Beverage Intake in Vulnerable Population Groups)
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Abstract

There is proliferation of alcoholic beverages flavoured with herbal-extracts that are perceived to have medicinal values. Information on the phytochemical and heavy metal contents of these products is scarce. This study assessed the phytochemical properties and heavy metal contents of herbal-extract flavoured alcoholic beverages in major motor parks in Ibadan, Nigeria. The phytochemical properties of the beverages were determined in triplicate using standard methods, while the heavy metal contents were assessed while using atomic absorption spectrophotometry. Data were analyzed using descriptive statistics, and means were compared using ANOVA at p < 0.05.The pH range of the beverages was 3.28–6.57 and the alcohol content was 34.0–51.5%. Detected major phytochemicals and concentration ranges were phytic acid (0.72–2.37 mg/g), alkaloids (0.42–4.11 mg/g), flavonoids (0.22–3.64 mg rutin equivalents/g), total phenols (1.13–3.66 mg gallic acid equivalents/g), anthraquinones (0.74–1.93 mg/g),and triterpenoids (0.74–1.93 mg/g). The heavy metal contents were Pb (2.13–4.70 mg/L), Cd (0.06–0.07 mg/L), Co (0.12–0.23 mg/L), Zn (0.14–0.40 mg/L), and Fe (0.72–4.22 mg/L); only Pb and Cd were above the World Health Organization (WHO) limits of 0.01 mg/L and 0.03 mg/L in water, respectively. The herbal-extract flavoured alcoholic beverages contain beneficial phytochemicals and traces of heavy metals. Safety awareness of these products for improved consumers’ health would be of public health importance. View Full-Text
Keywords: phytochemical; heavy metals; flavoured alcoholic beverages; herbal extract phytochemical; heavy metals; flavoured alcoholic beverages; herbal extract
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Okareh, O.T.; Oyelakin, T.M.; Ariyo, O. Phytochemical Properties and Heavy Metal Contents of Commonly Consumed Alcoholic Beverages Flavouredwith Herbal Extract in Nigeria. Beverages 2018, 4, 60.

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