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  • Title: Mitigation effects of phlorizin immersion on acrylamide formation in fried potato strips.
    Author: Yang Y, Shen H, Liu T, Wen Y, Wang F, Guo Y.
    Journal: J Sci Food Agric; 2021 Feb; 101(3):937-946. PubMed ID: 32748961.
    Abstract:
    BACKGROUND: Several researches reported that natural polyphenols affected acrylamide formation of fried products. However, the effects of different variety of polyphenols on acrylamide formation were distinct. In this study, we isolated and purified phlorizin from apples and identified the influence of phlorizin immersion on acrylamide formation and sensory properties of fried potato strips with regard to the immersion concentration, time and temperature. RESULTS: The acrylamide formation of fried samples decreased as the phlorizin concentration increased from 0 to 0.3 g kg-1 , and 0.14 g kg-1 could be selected as the suitable immersion concentration to dramatically inhibit acrylamide formation with considering the cost of industrial production. Additionally, the acrylamide formation significantly reduced from 8.71 × 10-3 to 2.13 × 10-3 g kg-1 lyophilized weight (LW) with immersion time from 0 to 120 min, and 60 min could be selected to significantly reduce acrylamide formation in consideration of efficiency of the large-scale industrial processing. However, the effect of phlorizin immersion temperature on acrylamide formation of fried samples was not significant. Compared to the fried samples without immersion, the phlorizin immersion improved the color properties and the change of texture parameters was slight. CONCLUSION: The fresh potato strips immersed in the phlorizin solution of 0.14 g kg-1 at 40 °C for 60 min before frying could significantly decrease acrylamide formation of fried samples and retain the majority of fresh sensorial properties. The significant correlations obtained between sensory properties and acrylamide content indicated the sensory properties could be used as the indicator of acrylamide levels during industrial processing. © 2020 Society of Chemical Industry.
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