Phenolic profile, antioxidant properties, and pollen spectra of Iranian-originated honeys

IF 3 3区农林科学 Q2 FOOD SCIENCE & TECHNOLOGY

European Food Research and Technology Pub Date : 2024-04-13 DOI:10.1007/s00217-024-04539-3

Adel Hajian-Tilaki, Reza Esmaeilzadeh Kenari, Razie Razavi, Reza Farahmandfar

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Abstract

This study was intended to determine the melissopalynological characteristics, LAB color, browning index, total phenolic content, antioxidant activity, phenolic profile, and their correlations within Iranian honeys. Ten honey samples were collected from beekeepers in various floristic regions of Iran, along with two commercial multi-floral samples. To determine the antioxidant activity, three methods of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, β-carotene bleaching, and Ferric reducing/antioxidant power (FRAP) were used. Phenolic compounds were analyzed by high-performance liquid chromatography with diode-array detection (HPLC–DAD). Pollen analysis revealed that bees primarily fed on the Fabaceae and Asteraceae families in the Iranian flora. The local samples were taxonomically categorized as multi-floral honey. Besides, the commercial samples demonstrated the lowest levels of total phenolics and relatively poor antioxidant activity across all three methods. Syringic acid and luteolin were the predominant phenolic compounds in all samples. A strong correlation (p < 0.01) was found between color, melanoidin content and antioxidant activity, while no significant correlation existed between phenolic content and antioxidant activity. Overall, the results confirmed that examined multi-floral honeys exhibited inferior antioxidant activity compared to studies conducted in other regions worldwide, possibly due to sugar-fed bees, insufficient levels of potent phenolic constituents, and post-harvest thermal treatments.

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伊朗原产蜂蜜的酚类概况、抗氧化特性和花粉光谱

本研究旨在确定伊朗蜂蜜的蜜源学特征、LAB 颜色、褐变指数、总酚含量、抗氧化活性、酚类概况及其相关性。研究人员从伊朗不同花卉产区的蜂农那里收集了 10 份蜂蜜样品，以及两份商业多花蜂蜜样品。为测定抗氧化活性，采用了 2,2-二苯基-1-苦基肼（DPPH）自由基清除、β-胡萝卜素漂白和铁还原/抗氧化能力（FRAP）三种方法。酚类化合物采用高效液相色谱-二极管阵列检测法（HPLC-DAD）进行分析。花粉分析表明，蜜蜂主要采食伊朗植物区系中的豆科和菊科花粉。当地样品在分类学上被归类为多花蜜。此外，在所有三种方法中，商品样品的总酚类物质含量最低，抗氧化活性相对较差。丁香酸和木犀草素是所有样品中最主要的酚类化合物。色泽、类黑色素含量和抗氧化活性之间存在很强的相关性（p <0.01），而酚类含量和抗氧化活性之间没有明显的相关性。总之，研究结果证实，与世界其他地区的研究相比，受检的多花蜂蜜的抗氧化活性较低，这可能是由于蜜蜂以糖为食、有效酚类成分含量不足以及采后热处理造成的。

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

European Food Research and Technology 工程技术-食品科技

CiteScore

6.60

自引率

3.00%

发文量

232

审稿时长

2.0 months

期刊介绍： The journal European Food Research and Technology publishes state-of-the-art research papers and review articles on fundamental and applied food research. The journal''s mission is the fast publication of high quality papers on front-line research, newest techniques and on developing trends in the following sections: -chemistry and biochemistry- technology and molecular biotechnology- nutritional chemistry and toxicology- analytical and sensory methodologies- food physics. Out of the scope of the journal are: - contributions which are not of international interest or do not have a substantial impact on food sciences, - submissions which comprise merely data collections, based on the use of routine analytical or bacteriological methods, - contributions reporting biological or functional effects without profound chemical and/or physical structure characterization of the compound(s) under research.