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<p>Natural plant dyes are essential products of biodiversity, providing numerous benefits to humanity. However further research is needed to ensure the conservation of dye-producing plants for future use. This systematic review aims to explore the existing knowledge on natural plant dyes, identify critical knowledge gaps and suggest future research directions for improved utilisation and conservation of these species. Seven online search engines, including Web of Science, ResearchGate, ScienceDirect, Research4Life, Google Scholar, PubMed and African Journals Online, were used to gather relevant literature following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework. A total of 632 publications were examined, of which 112 were finally selected based on the inclusion criteria. The results showed a peak in publications in 2024, with eighteen articles published that year. Geographically, the largest number of studies focused on West Africa (n = 68), followed by East Africa (n = 23), North Africa (n = 13), Southern Africa (n = 5), and Central Africa (n = 3). Notably, Nigeria accounted for 44.6% of all studies reviewed, followed by Ghana and Ethiopia with 7.1%. A total of 555 species were identified as natural dye-producing plants, mainly used in textiles, traditional practices, cosmetics, food and dye solar cell. However, an analysis of research limitations revealed significant knowledge gaps in plant biodiversity, spatial distribution, climate modelling, ecosystem services, physico-chemical properties, and economic valuation which are essential for the sustainable valorisation and conservation of natural dye-producing plant species in Africa.</p>

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Current knowledge and future prospects of African plants providing natural dyes: a systematic review

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月17日

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  • Hyacinthe Gbètoyénonmon Wouyou,
  • Carolle Avocevou-Ayisso,
  • Rodrigue Idohou,
  • Sosthène Cossi Assogbadjo,
  • Juliano Sènanmi Hermann Houndonougbo,
  • Achille Ephrem Assogbadjo

摘要

Natural plant dyes are essential products of biodiversity, providing numerous benefits to humanity. However further research is needed to ensure the conservation of dye-producing plants for future use. This systematic review aims to explore the existing knowledge on natural plant dyes, identify critical knowledge gaps and suggest future research directions for improved utilisation and conservation of these species. Seven online search engines, including Web of Science, ResearchGate, ScienceDirect, Research4Life, Google Scholar, PubMed and African Journals Online, were used to gather relevant literature following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework. A total of 632 publications were examined, of which 112 were finally selected based on the inclusion criteria. The results showed a peak in publications in 2024, with eighteen articles published that year. Geographically, the largest number of studies focused on West Africa (n = 68), followed by East Africa (n = 23), North Africa (n = 13), Southern Africa (n = 5), and Central Africa (n = 3). Notably, Nigeria accounted for 44.6% of all studies reviewed, followed by Ghana and Ethiopia with 7.1%. A total of 555 species were identified as natural dye-producing plants, mainly used in textiles, traditional practices, cosmetics, food and dye solar cell. However, an analysis of research limitations revealed significant knowledge gaps in plant biodiversity, spatial distribution, climate modelling, ecosystem services, physico-chemical properties, and economic valuation which are essential for the sustainable valorisation and conservation of natural dye-producing plant species in Africa.