A food waste utilization study for removing lead(II) from drinks

•The study is important in terms of removal a toxic metal from energy drinks.•The study is also important in the evaluation of a food waste (eggshell).•Performed experiments show that the eggshell is an effective adsorbent for Pb(II).•Adsorption percentages are obtained very high for removal of Pb(I...

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Bibliographic Details
Published inFood chemistry Vol. 214; pp. 637 - 643
Main Authors Kaplan Ince, Olcay, Ince, Muharrem, Yonten, Vahap, Goksu, Ali
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.01.2017
Subjects
Adsorption
Analysis of Variance
Animals
Beverages
Biomass
Egg Shell
Eggshell
Energy drink
Food
Food Analysis - methods
Food Contamination - analysis
Food waste
Humans
Hydrogen-Ion Concentration
Lead
Lead - analysis
Mineral water
RSM
Spectroscopy, Fourier Transform Infrared
Water - chemistry
Food waste
Eggshell
Lead
RSM
Energy drink
Mineral water
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Summary:•The study is important in terms of removal a toxic metal from energy drinks.•The study is also important in the evaluation of a food waste (eggshell).•Performed experiments show that the eggshell is an effective adsorbent for Pb(II).•Adsorption percentages are obtained very high for removal of Pb(II) in drink samples. This is the first study about removal of lead (Pb(II)) from energy drinks. In this paper, food waste, namely eggshell (hydroxyapatite) utilization, was used to remove Pb(II) from mineral water and energy drinks. Mineral water and energy drinks were chosen for removal of lead since the latter is severely hazardous to human health even in small amounts. Response Surface Methodology (RSM) was performed to optimize the application process by practice of the quadratic model united with the Central Composite Design (CCD) and quadratic combined program was utilized to study the most effective parameters on aforementioned liquids. Through the application of variance analysis (ANOVA) factors critical to removing of lead were identified for each experimental design response. Maximum adsorption capacity of eggshell was achieved as 923mgg−1 for Pb(II). The obtained optimum conditions were applied to drinks. Results showed that used adsorbent was quite effective in removing Pb(II) from drinks.
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ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2016.07.117