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The influence of processing and clarifier agents on the concentrations of potentially toxic elements (PTEs) in pekmez (a grape molasses-like syrup).
Environmental Science and Pollution Research ( IF 3.056 ) Pub Date : 2020-01-14 , DOI: 10.1007/s11356-020-07607-9
Ali Heshmati,Sabah Ghadimi,Akram Ranjbar,Amin Mousavi Khaneghah

The changes in some potentially toxic elements (PTEs) including lead (Pb), cadmium (Cd), arsenic (As), iron (Fe), zinc (Zn), and copper (Cu) during pekmez (grape molasses-like syrup) processing and the utilization of various types of clarifiers (white soil, bentonite, and gelatin) in two levels (1.5 and 3% w/w) were analyzed. The average concentrations of Pb, Cd, As, Fe, Zn, and Cu in grape samples were measured as 0.055 ± 0.005, 0.030 ± 0.002, 0.044 ± 0.002, 2.882 ± 0.013, 2.372 ± 0.088, and 1.194 ± 0.01 μg g-1. During pekmez production, the range of changes in Pb, Cd, As, Fe, Zn, and Cu was -43.38% to 40.25%, -55.49% to 0.23%, -76.15% to 1.80%, -74.15% to 58.47%, -40.55% to -18.12%, and -83.16% to -21.39%, respectively. The effect of the clarification process on the PTEs depended on the type and concentration of both PTE and clarifier agent used while the incorporation of gelatin resulted in a significant reduction in all of PT. Graphical abstract.
更新日期:2020-01-14

 

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