Analysis and Health Risk Assessment of Sodium Benzoate and Potassium Sorbate in Selected Fruit Juice and Soft Drink Brands in Nigeria
Asabe Mercy Magomya,
Gary Garbunga Yebpella,
Ucheoma Chidinma Okpaegbe,
Odiba John Oko,
Sunday Bature Gambo
Issue:
Volume 6, Issue 5, September 2020
Pages:
54-59
Received:
2 September 2020
Accepted:
18 September 2020
Published:
7 October 2020
Abstract: Sodium benzoate and potassium sorbate are chemical preservatives commonly used in fruit juice and soft drinks. In this study, a total of 20 commercial brands of such beverages in Nigeria were analysed for Sodium benzoate and Potassium sorbate using a UV-Vis spectrophotometric method. Preliminary validation of the method revealed good accuracy and precision; 94.54 – 97.25% mean recovery was recorded for benzoate and 92.7 – 96.82% for sorbate. % RSD for intraday precision was 1.67% and 2.36% for benzoate and sorbate respectively. The limits of detection and quantitation (LOD, LOQ) were 1.35, 0.87mg/L for sodium benzoate and 4.11, 2.56mg/L for potassium sorbate. The samples analysed all contained sodium benzoate in concentrations ranging from 25.80 to 245.10 while for potassium sorbate, fourteen samples tested positive with concentrations between 1.36 – 158 mg/L. All the obtained concentrations for potassium sorbate were within acceptable limits but for sodium benzoate, seven samples were found with concentrations above permissible limits. Exposure estimation and health risk assessment carried out in this study revealed potential risks from the sodium benzoate content of some samples. The consumers that are prone to these risks are mainly children with body weights ≤ 30kg. Based on these findings, we recommend that the feeding of soft drinks and related beverages to children should generally be done with caution.
Abstract: Sodium benzoate and potassium sorbate are chemical preservatives commonly used in fruit juice and soft drinks. In this study, a total of 20 commercial brands of such beverages in Nigeria were analysed for Sodium benzoate and Potassium sorbate using a UV-Vis spectrophotometric method. Preliminary validation of the method revealed good accuracy and p...
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Study of Amino Acid Composition of Prunus Domestica Fruits Pectin Complex
Larysa Lenchyk,
Taras Upyr,
Shahm Mohammed,
Mykola Komisarenko
Issue:
Volume 6, Issue 5, September 2020
Pages:
60-64
Received:
22 July 2020
Accepted:
24 August 2020
Published:
26 October 2020
Abstract: Medicines on the basis of herbs are increasingly used for treating of many diseases and provide the following actions laxative, hepatoprotective, membrane stabilizing and antimicrobial. The plant Prunus domestica L., family Rosaceae is widely cultivated worldwide. The recent studies have shown that fruits have antioxidant, anticancer, antihyperglycemic, anti-hyperlipidemic, antihypertensive, antiosteoporosis, laxative and hepatoprotective activities. As raw material plum of Ukrainian variety ‘vengerka’ was taken for the research and pectin complex from plum fruits was obtained. The yield of the pectin from the fresh plum fruits was 8,6% of a dry weight. The analysis of plum pectin was performed by HPLC and spectrophotometry methods. 16 amino acids were identified and their contents were determined. It was found that plum pectin contained essential amino acids such as threonine, valine, isoleucine, leucine, phenylalanine, and histidine. The total amount of free and bound amino acids was 33.70 μg/mg, while free amino acids – 1.18 μg/mg. The amount of bound amino acids was 32,52 μg/mg. The content of free amino acids was only 3.50% of the amount of all amino acids found in the pectin complex. L-Aspartic and L-Proline predominated among free amino acids. Among the bound amino acids, L-Aspartic and L-Glutamic acids dominated. The content of the total amount of phenolic compounds calculated with reference to gallic acid in the pectin complex was 0.43%, and the content of hydroxycinnamic acids calculated with reference to chlorogenic acid in this substance was 0.09%.
Abstract: Medicines on the basis of herbs are increasingly used for treating of many diseases and provide the following actions laxative, hepatoprotective, membrane stabilizing and antimicrobial. The plant Prunus domestica L., family Rosaceae is widely cultivated worldwide. The recent studies have shown that fruits have antioxidant, anticancer, antihyperglyc...
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