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Effect of Rehydration Temperature on Functional Properties, Antioxidant Capacity and Structural Characteristics of Apple (Granny Smith) Slices in Relation to Mass Transfer Kinetics

机译:复水温度对苹果片(Granny Smith)的功能特性,抗氧化能力和结构特性与传质动力学的影响

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摘要

Apple slices dried at 60C were rehydrated at 20, 40 and 60C to analyze theninfluence of processing temperature on quality attributes and rehydrationnkinetics. Diffusion coefficient increased with process temperature from 1.36 ton2.37 ¥ 10-9 m2/s. The Weibull model obtained the best fit quality for the experimentalndata based on statistical test, chi square. Color was not recovered duringnrehydration and the results indicated that the use of low temperatures is morenadequate. Water-holding capacity decreased, while rehydration ratio increasednwith increasing rehydration temperature, indicating structural modifications.nIncreasing rehydration temperatures led to a reduction in the glass transitionntemperature and hardness values of samples. The radical-scavenging activitynshowed higher antioxidant activity at higher rehydration temperatures rather thannat lower temperatures. It was found that rehydration temperature modifies the cellnstructure and antioxidant capacity of final product.
机译:将在60°C干燥的苹果片在20、40和60°C进行水化处理,然后分析加工温度对质量属性和水化动力学的影响。扩散系数随过程温度的增加从1.36吨2.37 ¥ 10-9 m2 / s。 Weibull模型基于统计检验(卡方)获得了最佳的实验数据拟合质量。补水过程中颜色未恢复,结果表明使用低温是不够的。随着保水温度的升高,保水能力下降,而保水率增加,说明结构发生了变化。保水温度的升高导致样品的玻璃化温度和硬度值降低。自由基清除活性在较高的再水化温度下表现出较高的抗氧化活性,而不是在较低的温度下表现出较高的抗氧化剂活性。发现再水化温度改变了最终产物的细胞结构和抗氧化能力。

著录项

  • 来源
    《Journal of food process engineering》 |2013年第5期|559-571|共13页
  • 作者单位

    Departamento de Ingeniería en Alimentos Universidad de La Serena Av. Raúl Bitrán s. 599 La Serena Chile;

    Instituto de Ciencia y Tecnología de los Alimentos Universidad Austral de Chile Valdivia Chile;

    CEAZA – Centro Estudios Avanzados en Zonas Áridas La Serena Chile4Departamento de Tecnología en Alimentos Universidad Politécnica de Valencia Valencia España;

    Departamento de Tecnología en Alimentos, Universidad Politécnica de Valencia, Valencia, España;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 23:23:49

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