粒度对测定谷物和豆类膳食纤维及抗性淀粉含量的影响

Acta agriculturae Slovenica Pub Date : 2023-12-13 DOI:10.14720/aas.2023.119.4.15383

Blaž Ferjančič, M. Korošec, Saša Piskernik, J. Bertoncelj

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引用次数: 0

摘要

膳食纤维由不可消化的碳水化合物（包括抗性淀粉）和木质素组成，是健康饮食的重要组成部分。研究的目的是确定粒度对未加工谷物和罐装豆类中膳食纤维和抗性淀粉含量测定的影响。分析了五种未加工和加工谷物样品（燕麦片、荞麦、脱壳大麦、小麦和斯佩耳特小麦），以及三种豆类罐头（豆子、鹰嘴豆和豌豆）（含盐水和不含盐水）。样品最初未经筛分，然后再次经过 500 微米或 350 微米筛分。对于未经加工的谷物样本，颗粒大小一般不会产生影响，但 350 微米的脱壳大麦碾磨样本除外，其测定的不溶性膳食纤维和抗性淀粉含量明显下降，这可能是由于淀粉颗粒受到破坏，淀粉结晶形成受到干扰所致。对于加盐水和不加盐水的罐装豆类，颗粒大小对测定的膳食纤维和抗性淀粉含量影响不大。

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Effects of particle size on determination of the contents of grain and legume dietary fibre and resistant starch

Dietary fibre comprises non˗digestible carbohydrates, including resistant starch, and lignin, and it is an important constituent of a healthy diet. The aim was to define the influence of particle size on contents determined for dietary fibre and resistant starch in unprocessed grain and canned legumes. Five samples of unprocessed and processed grains were analysed, as oatmeal, buckwheat, dehulled barley, wheat and spelt, and three canned legumes, as beans, chickpeas and peas, with and without their brine. Samples were initially milled unscreened, and then again through 500 μm or 350 μm screens. For unprocessed grain samples, there was generally no influence of particle size, except for the 350-μm milling of dehulled barley, with significantly decreased contents determined for insoluble dietary fibre and resistant starch presumably due to damaging of starch granules and disrupting crystalline formation of starch. For canned legumes with and without their brine, particle size had little effect on contents determined for dietary fibre and resistant starch.

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来源期刊

Acta agriculturae Slovenica Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Acta agriculturae Slovenica is a scientific journal published quarterly by the Agronomy, and the Zootechnical Departments of the Biotechnical Faculty, University of Ljubljana, Slovenia. Source of high quality research from the field of agronomy, zootechnics, applied biology and related fields from Slovenia and other countries.