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首页> 外文期刊>Journal of food engineering >Evolution of sulforaphane content in sulforaphane-enriched broccoli during tray drying
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Evolution of sulforaphane content in sulforaphane-enriched broccoli during tray drying

机译：托盘干燥过程中富含萝卜硫烷的西兰花中萝卜硫素含量的变化

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摘要

Sulforaphane is a natural anticancer compound found in broccoli that comes from hydrolysis of glucoraphanin. Conversion of glucoraphanin to sulforaphane has been optimized, however, its use as functional ingredient is limited because sulforaphane is thermo-labile. We investigated the effect of drying air temperature (60, 70, 80 degrees C) in tray drying of sulforaphane-enriched broccoli on the evolution of sulforaphane content. Broccoli temperature and sulforaphane content were registered in time. Sulforaphane content profiles were adjusted to a first-order kinetic model, showing acceptable agreement (r > 0.90). Sulforaphane formation occurred below 40 degrees C; formation and degradation occurred at broccoli temperature above 40 degrees C, until the low content of glucoraphanin and moisture, prevents reaction. After that, only sulforaphane degradation was detected. The highest sulforaphane content at X/X-0 = 0.1 was 67.6 mg/100 g DW, obtained with drying air temperature of 70 degrees C, being 4-fold higher than that found in fresh broccoli, and the highest reported so far in any dehydrated food. (C) 2016 Elsevier Ltd. All rights reserved.
机译：萝卜硫烷是一种在花椰菜中发现的天然抗癌化合物，它来自于糖尿素的水解。已经优化了葡糖萝卜素向萝卜硫烷的转化，但是由于萝卜硫烷是热不稳定的，因此其用作功能成分的用途受到限制。我们研究了在富含萝卜硫烷的西兰花托盘干燥中干燥温度（60、70、80摄氏度）对萝卜硫素含量演变的影响。花椰菜温度和萝卜硫素含量被及时记录。萝卜硫素含量曲线被调整为一阶动力学模型，显示出可接受的一致性（r> 0.90）。低于40°C时会形成萝卜硫素;花椰菜温度高于40摄氏度时会发生形成和降解，直到低含量的葡糖甘露聚糖和水分阻止了反应。之后，仅检测到萝卜硫烷降解。 X / X-0 = 0.1时，萝卜硫烷的最高含量为67.6 mg / 100 g DW，是在70摄氏度的干燥空气温度下获得的，比新鲜西兰花中的含量高4倍，是迄今为止报告的最高值脱水食品。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Journal of food engineering》 |2016年第10期|27-33|共7页
  • 作者

    Mahn Andrea; Martin Constanza; Reyes Alejandro; Saavedra Aldo;

  • 作者单位

    Univ Santiago Chile, Dept Chem Engn, Estn Cent, Ave Libertador Bernardo OHiggins 3363, Santiago 9170019, Chile;

    Univ Santiago Chile, Dept Chem Engn, Estn Cent, Ave Libertador Bernardo OHiggins 3363, Santiago 9170019, Chile;

    Univ Santiago Chile, Dept Chem Engn, Estn Cent, Ave Libertador Bernardo OHiggins 3363, Santiago 9170019, Chile;

    Univ Santiago Chile, Dept Chem Engn, Estn Cent, Ave Libertador Bernardo OHiggins 3363, Santiago 9170019, Chile;

  • 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

    Sulforaphane degradation; Broccoli; Tray drying; Kinetic model;

    机译：萝卜硫素降解花椰菜托盘干燥动力学模型;

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