来自果种的可溶和不可溶纤维的物理化学表征
Jolita Jagelavičiūtė1, Simona Šimkutė1, Aurelija Kairė1
1Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų Rd. 19, LT-50254 Kaunas, Lithuania.
果末产生的可溶性 (SDF) 和不可溶性 (IDF) 食纤维具有不同的特性. 这些纤维具有作为功能性食品成分的潜力,作为加厚剂和稳定剂.
科学领域:
- 食品科学与技术 食品科学与技术
- 营养生物化学 营养生物化学
- 材料科学 是一种材料科学.
背景情况:
- 果是一种丰富的食纤维 (DF) 来源,是功能性食物发展的宝贵组成部分.
- 了解可溶性 (SDF) 和不可溶性 (IDF) 纤维部分的特性对于它们的有效利用至关重要.
- 果副产品的价值化可以为可持续的粮食系统做出贡献.
研究的目的:
- 评价和比较SDF和IDF从蔓越,黑胡卜,果和海树的技术和质性质.
- 为了研究分化和果来源对纤维功能的影响.
- 评估这些纤维部分在食品系统中的潜在应用.
主要方法:
- 从四个果果汁来源中分离和表征可溶性 (SDF) 和不可溶性 (IDF) 的食纤维分量.
- 评估水合性质 (水溶性,膨胀能力,水和油的保留).
- 在不同的pH值和剪切速率下分析颜色参数和学行为 (粘度,收益应力,一致性系数).
主要成果:
- 与IDF碎片相比,SDF碎片具有更高的水溶性和较低的膨胀能力.
- 水和油的保留因纤维类型和树脂来源而异; 分割改变了颜色参数,SDF变得更轻.
- 所有的SDF样本都表现出伪塑料,剪切稀释行为,粘度受pH和剪切速率的影响. 黑SDF表现出更高的收益压力,表明优越的结构稳定性.
结论:
- 果来源和纤维分量显著影响食纤维的技术和质性质.
- 来自果的SDF和IDF都具有适用于加厚剂,稳定剂或纹理增强剂的功能特征.
- 这项研究支持使用果副产品作为纤维丰富食品的可持续,功能性成分.
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