Alteration of Antioxidant Vitamins and Ghrelin Hormones Amounts in Pasteurized Dairy Products Depend on the Shelf Life

Fikret KARATAS^1, , Hadice ULUS¹, Sinan SAYDAM¹, Kader UGUR² and Suleyman AYDİN³

¹Faculty of Science Department of Chemistry, Firat University, Elazig, Turkey

²Endocrine and Metabolic Diseases Department, School of Medicine, Firat University, Elazig, Turkey

³Medical Biochemistry Department (Firat Hormone Research Group), School of Medicine, Firat University, Elazig, Turkey

Cite this paper:
Fikret KARATAS, Hadice ULUS, Sinan SAYDAM, Kader UGUR and Suleyman AYDİN. Alteration of Antioxidant Vitamins and Ghrelin Hormones Amounts in Pasteurized Dairy Products Depend on the Shelf Life. Journal of Food and Nutrition Research. 2017; 5(2):116-120. doi: 10.12691/jfnr-5-2-7

Abstract

In this study, the amount of antioxidant vitamins and ghrelin hormones alteration in the packaged milk of five different brands commonly consumed were investigated depending on the shelf life. Besides the amounts of antioxidant vitamins and ghrelin hormones in fresh uncooked milk and boiled milk were determined. The milk samples were collected for a total period of 6 months with one-month periods beginning from date of manufacture. Then, the amounts of vitamins A, E and C with acylated and desacylated forms of ghrelin hormone were analyzed by using HPLC. Highest the amounts of vitamins A, E and C with acylated and desacylated forms of ghrelin hormone were found in the first month of production while the lowest amounts of A, E and C vitamins with acylated and desacylated forms of ghrelin hormone were found in the sixth month of after production (p<0.001). The amounts of vitamins A, E C and acylated and desacylated forms of ghrelin in fresh uncooked milk found to be higher than that of the boiled milk (p<0.01). The amounts of vitamins A, E, C and acylated as well as desacylated forms of ghrelin hormone in the packaged milk of all brands decrease over time depending on the shelf life of milk (p<0.001). Consumption of long time stored milk should be discouraged due to decrement of vitamins and ghrelin hormones.

Keywords:
milk ghrelin hormone vitamin A vitamin E vitamin C

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