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    Bioactive compounds and antioxidant potential in tomato pastes as affected by hot and cold break process
    (Elsevier Sci Ltd, 2017) Kelebek, Haşim; Selli, Serkan; Kadiroglu, Pinar; Kola, Osman; Kesen, Songul; Ucar, Burcak; Cetiner, Basak
    The effects of hot and cold break industrial tomato paste production steps on phenolic compounds, carotenoids, organic acids, hydroxy methyl furfural (HMF) and other quality parameters of tomato pastes were investigated in this study. Phenolic compounds, carotenoids, organic acids, and HMF analyses were performed with LC-DAD-ESI-MS/MS and LC-DAD-RID was used for the sugar analyses. Furthermore, the antioxidant capacities of tomato pastes were assessed via the DPPH and ABTS methods. The increase of phenol acids at the processing steps of cold break production method was higher than the hot break production method. According to PCA analyses, phenolic acids characterized cold break tomato pastes while hot break tomato pastes were characterized by flavanols and flavanones. The total amount of organic acids decreased with processing and the loss of organic acids was lower in cold break pastes. Heating and evaporation were determined as the most important processing steps in which the amount of different quality parameters change. (C) 2016 Elsevier Ltd. All rights reserved.