渗透脱水循环处理对糖液及桃片理化特性的影响
CSTR:
作者:
作者单位:

(1.上海海洋大学 食品学院, 上海 201306;2.中国农业科学院 农产品加工研究所/农业农村部农产品加工重点实验室, 北京 100193)

作者简介:

通讯作者:

中图分类号:

基金项目:

农业农村部现代农业产业技术体系建设专项项目(CARS-30-5-02)。


Effect of Cycle Treatment of Osmotic Dehydration on Physicochemical Characteristics of Sugar Solution and Peach Slices
Author:
Affiliation:

(1.College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;2.Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/ Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China)

Fund Project:

Special Project of Modern Agricultural Industrial Technology System Construction, Ministry of Agriculture and Rural Affairs (CARS-30-5-02).

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    以白桃片为实验材料,追踪分析了单阶段(糖液浓度不变)和多阶段(糖液浓度逐渐增加)渗透脱水循环处理后糖液特性和桃片理化特性的变化。糖液循环利用5次,期间不做任何调整。结果表明:随着糖液循环利用次数的增加,单阶段渗透脱水处理过程中糖液黏度降低、稀化现象严重,导致渗透压力差减小,使桃片水分损失率和固形物增加率逐渐降低,同时桃片中可溶性物质的溶出致使糖液电导率、浊度、色差值显著增加;多阶段渗透脱水循环处理基于多浓度糖液组合利用,有效降低了循环利用过程中糖液稀化现象的发生,保持了较好的渗透压力差,进而有利于桃片更多固形物的获得和更多水分的散失,且糖液的电导率、浊度等特性得到了较好的保持,但是多阶段渗透脱水循环处理会使桃片与空气接触更多,不利于产品色泽的保持,且长时间的高渗透压导致桃片中可滴定酸含量显著改变。从糖液循环利用中桃片渗透脱水效率和糖液特性保留角度出发,多阶段渗透处理可在桃片渗透方式的选择上提供一种新颖的思路,具有良好的应用前景。

    Abstract:

    White peach slices were chosen as the test material, to explore the changes in physicochemical properties of sugar solution and white peach slices during cycle treatment under osmotic dehydration. Single-stage osmotic dehydration treatment (SODT) with constant sugar solution concentration and multi-stage osmotic dehydration treatment (MODT) with gradually increasing sugar solution concentration were studied. The sugar solution was recycled for five cycles without any adjustment. With the increase of the recycles, sugar solution showed low viscosity, indicating the dilution of the solution, which was found especially in SODT. Because of the low osmotic pressure differences between solution and samples, lower water loss and solid gain were observed in samples treated by SODT, which induced the significant increase in electrical conductivity, turbidity and ΔE. Based on the combined utilization of sugar solution with gradually increased concentration, the osmotic pressure differences could be good preserved in the MODT, contributing to the more water loss and solid gain of samples and the lower changes in electrical conductivity and turbidity of sugar solution. However, the significant browning reaction and the decrease in titratable acid content were illustrated in samples treated by MODT, which could be explained by the more oxygen induced by MODT. Therefore, the MODT could provide a novel idea and a good application prospect for the selection of osmotic dehydration mode of peach slices based on the efficiency of peach osmotic dehydration and properties retention of sugar solution.

    参考文献
    相似文献
    引证文献
引用本文

张嗣伟,吕健,毕金峰,钟耀广,王凤昭,谢晋.渗透脱水循环处理对糖液及桃片理化特性的影响[J].食品科学技术学报,2022,40(4):127-137.

复制
分享
相关视频

文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-11-23
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2022-08-02
  • 出版日期:
文章二维码