Phenolic Composition and Arabinoxylan Characterization of Pearled Barley Fractions

IF 2.5 4区农林科学 Q3 CHEMISTRY, APPLIED

Cereal Chemistry Pub Date : 2025-07-26 DOI:10.1002/cche.70002

Pamela Drawbridge, Daniela D. Herrera-Balandrano, Trust Beta

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引用次数: 0

Abstract

Background and Objectives

Two hulless barley varieties (Peru-35 and Roseland) were pearled into six fractions and analyzed for primary phenolic acids via HPLC, along with the arabinoxylan content and degree of substitution (arabinose to xylose (A/X) ratio) using gas chromatography. The distribution of the newly identified polyamine, N1,N8-dicaffeoyl spermidine, in these barley varieties was reported.

Findings

The concentrations of ferulic and p-coumaric acids in both varieties were highest in the outermost fraction and decreased progressively toward the endosperm fraction. The relative abundance of N1,N8-dicaffeoyl spermidine was uniformly distributed among the intermediary fractions, with the highest levels observed in the aleurone-containing fraction (F5) of Peru-35 and in the pericarp-containing fraction (F2) of Roseland. The arabinoxylan content decreased from the outer to inner fractions of the grains and was positively correlated with bound phenolic acid content.

Conclusions

This study provides insights into the distribution of phenolic acids and arabinoxylan content in pearled hulless barley fractions, contributing to the advancement of fortified food products.

Significance and Novelty

The distribution of N1,N8-dicaffeoyl spermidine in barley is reported for the first time. This study elucidates the composition of pearled hulless barley fractions, enabling selection for functional food development based on the desired bioactive components.

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珍珠大麦馏分的酚类成分及阿拉伯木聚糖表征

背景与目的将两种无壳大麦（秘鲁-35和罗斯兰）分离成6个组分，采用高效液相色谱法分析其主要酚酸含量，并采用气相色谱法分析其阿拉伯木聚糖含量和取代度（阿拉伯糖与木糖（A/X）比）。报道了新鉴定的多胺N1， n8 -二咖啡因酰亚精胺在这些大麦品种中的分布。结果阿魏酸和对香豆酸含量均以最外层部位最高，向胚乳部位逐渐降低。N1， n8 -二咖啡酰基亚精胺的相对丰度在中间组分中分布均匀，其中秘鲁-35的含糊粉组分（F5）和罗斯兰的含果皮组分（F2）的相对丰度最高。阿拉伯木聚糖含量由外向内递减，与结合酚酸含量呈正相关。结论本研究揭示了珠光大麦籽粒中酚酸和阿拉伯木聚糖含量的分布规律，有助于强化食品的发展。本文首次报道了大麦中N1， n8 -二咖啡因酰亚精胺的分布。本研究阐明了珠光无壳大麦馏分的组成，使基于所需生物活性成分的功能食品开发选择成为可能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cereal Chemistry 工程技术-食品科技

CiteScore

5.10

自引率

8.30%

发文量

110

审稿时长

3 months

期刊介绍： Cereal Chemistry publishes high-quality papers reporting novel research and significant conceptual advances in genetics, biotechnology, composition, processing, and utilization of cereal grains (barley, maize, millet, oats, rice, rye, sorghum, triticale, and wheat), pulses (beans, lentils, peas, etc.), oilseeds, and specialty crops (amaranth, flax, quinoa, etc.). Papers advancing grain science in relation to health, nutrition, pet and animal food, and safety, along with new methodologies, instrumentation, and analysis relating to these areas are welcome, as are research notes and topical review papers. The journal generally does not accept papers that focus on nongrain ingredients, technology of a commercial or proprietary nature, or that confirm previous research without extending knowledge. Papers that describe product development should include discussion of underlying theoretical principles.