Leather tanning technology impacts negatively on the environment as a result of chemicals in the tannery effluents that increases the concentrations of chemical oxygen demand, Biological oxygen demand, total dissolved solids, total Kjeldahl Nitrogen and formation of Cr(VI) among others in the environment. This has led to the profiling of the industry by legislative bodies as a major source of pollution and hence urgent cleaner and eco-friendly innovative technologies are required that will mitigate the environmental pollution. Many studies have recommended green chemistry tanning protocols and systems involving plants since are non-carcinogenic, non-toxic, biodegradable, agro-renewable, sustainable and economical. Numerous studies have evaluated the potential of phytochemistry in leather tanning processes. However, these studies only focused on individual processes or individual plant phytochemicals. Hence this review compiles the selected plants, their phytochemical screening results, their applications in tanning process and their potential for leather tanning. The review has shown enormous capacity of plants and their phytochemicals that can replace synthetic inorganic materials in leather processing and guarantee quality. Plants have a greater applicability in this industry since they have multiple beneficial actions during processing and the final processed leather. Some plants can be used at all tanning processes due to wide variety of important phytochemicals and the final leather is more superior quality to the conventionally processed leather. Other studies have alluded to the possibility of some plant products that have the potential in the industry but yet to be utilized. Further studies have been recommended.

皮革鞣制技术由于制革厂废水中的化学物质而对环境产生了负面影响，从而增加了环境中化学需氧量，生物需氧量，总溶解固体，总凯氏氮和六价铬（VI）的浓度。这导致立法机构对工业进行了剖析，将其作为主要的污染源，因此需要紧急的更清洁和环保的创新技术，以减轻环境污染。许多研究建议了涉及植物的绿色化学鞣制方案和系统，因为它们不致癌，无毒，可生物降解，可农业更新，可持续且经济。许多研究已经评估了皮革鞣制过程中植物化学的潜力。然而，这些研究仅关注单个过程或单个植物植物化学物质。因此，本综述汇编了选定的植物，其植物化学筛选结果，其在鞣革过程中的应用以及它们在皮革鞣革中的潜力。审查显示，植物及其植物化学物质的巨大能力可以在皮革加工中替代合成无机材料并保证质量。植物在加工和最终加工的皮革中具有多种有益作用，因此在该行业具有更大的适用性。由于多种重要的植物化学物质，有些植物可用于所有鞣革工艺，并且最终皮革的质量比常规加工皮革更高。其他研究暗示了某些植物产品在工业中具有潜力但尚未被利用的可能性。建议进一步研究。