The influence of storage time on micronutrients in bottled tomato pulp

Abstract: Micronutrients were determined in bottled tomato pulp stored at room temperature (20.0±1.8°C) for 0, 60, 120 and 180 days. After 180 days, lycopene content had undergone no significant change (p >0.05); ascorbic, malic and citric acid levels had fallen significantly (p <0.001); and there were significant increases in β-carotene level (p <0.001) and total phenolics concentration (p <0.01). The fall in organic acid levels correlated well with the increase in 5-hydroxymethyl-2-furfural (HMF) (r 2 >0.80). [Copyright &y& Elsevier]