Extraction of Natural Pigments from Mediterranean Flowers and Fruits: A Sustainable Approach to Plant-Based Colorants

IF 7.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Sustainable Chemistry & Engineering Pub Date : 2025-08-26 DOI:10.1021/acssuschemeng.5c03477

Jorge Jordán-Núñez, , , Iria Costa-Torrado, , , Marta Pérez-Cabezas, , , Antonio Belda, , , Macarena Boix, , and , Bàrbara Micó-Vicent*,

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引用次数: 0

Abstract

This study explores the sustainable extraction of natural pigments from Mediterranean plant sources, focusing on valorizing floral and fruit waste as renewable resources for eco-friendly colorants. A selection of species native to the Valencian Community, Rosa grandiflora, Helianthus annuus, Calendula officinalis, Rubus ulmifolius, Juglans regia, Solanum lycopersicum, Punica granatum, Prunus persica, and Cydonia oblonga, was investigated using various green extraction techniques. The efficiency of pigment recovery was evaluated under different solvent systems (ethanol, water, KOH, HCl, acetic acid, and acetone) and temperature conditions (freezing, boiling, and maceration). Results revealed that ethanol-based mixtures, particularly in combination with acidic or basic reagents, significantly enhanced pigment yield and chromatic intensity compared to aqueous systems. Elevated temperatures (70 °C) further intensified color saturation, while low-temperature extractions resulted in milder tones. Statistical analysis confirmed that reagent type and temperature synergistically influenced pigment extraction performance. These findings support the development of scalable, low-impact extraction processes to obtain natural colorants from agricultural residues, providing sustainable alternatives for the textile, cosmetic, and pharmaceutical industries.

Sustainable extraction of natural pigments from Mediterranean flowers and fruits offers eco-friendly colorants from agricultural waste for industrial applications.

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从地中海花卉和水果中提取天然色素：植物性着色剂的可持续发展途径

本研究探讨了从地中海植物中提取天然色素的可持续方法，重点是将花卉和水果废料作为环保着色剂的可再生资源。采用不同的绿色提取技术，对瓦伦西亚群落的原生植物大花蔷薇（Rosa grandflora）、向日葵（Helianthus annuus）、金盏花（Calendula officinalis）、金盏花（Rubus ulmifolius）、核桃（Juglans regia）、番茄茄（Solanum lycopersicum）、石榴（Punica granatum）、桃李（Prunus persica）和长相思（Cydonia oblonga）进行了研究。考察了不同溶剂体系（乙醇、水、KOH、HCl、乙酸和丙酮）和温度条件（冷冻、煮沸和浸渍）下的色素回收效率。结果表明，与水体系相比，乙醇基混合物，特别是与酸性或碱性试剂结合，显着提高了颜料收率和色彩强度。升高的温度（70°C）进一步增强了颜色饱和度，而低温提取导致色调较温和。统计分析证实，试剂类型和温度对色素提取性能有协同影响。这些发现支持开发可扩展的、低影响的提取工艺，从农业残留物中获得天然着色剂，为纺织、化妆品和制药行业提供可持续的替代品。从地中海花卉和水果中可持续提取天然色素，为工业应用提供了从农业废料中提取的环保色素。

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

ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

13.80

自引率

4.80%

发文量

1470

审稿时长

1.7 months

期刊介绍： ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.