Traditional corrosion inhibitors have made great contributions to metal corrosion protection. However, environmental pollution caused by them is becoming more serious. To circumvent this tricky problem, green corrosion inhibitors have attracted increasing attention. Notably, plants are good raw materials of effective corrosion inhibitors and also meet the requirements of industrial production, where some active components really work. Therein, starch and cellulose are most abundant in plants which have great potential as industrial corrosion inhibitors. Besides, some other plant extracts are also available from rich sources, and show good corrosion inhibition efficiency. Starch, cellulose, and other plant extracts as representative green corrosion inhibitors have been reported without pollution to the environment. Although many advantages of starch, cellulose, and other plant extracts have been described, no such inhibitors are successfully applied to anticorrosion industry. These factors (source, solubility, dosage, composition, and others) seriously affect the applied industrialization of them. Currently, there are no analysis and discussions on these deficiencies and the related solutions: Herein, we review the factors that affect the industrial application of starch, cellulose, and other extracts from plants, and discuss specific solutions to make them potential industrial corrosion inhibitors. The major points are the following: 1) Why can't plant corrosion inhibitors be really applied to the industry? 2) The deficiencies of starch, cellulose, and other plant extracts as corrosion inhibitors are comprehensively analyzed from material source, solubility, dosage and composition. 3) Solutions that these green plant corrosion inhibitors cannot be used in industry are proposed. We aim to make appropriate recommendations for the early application of rich plant components into industry.

传统缓蚀剂对金属腐蚀防护做出了巨大贡献。然而，由它们造成的环境污染正变得越来越严重。为了规避这个棘手的问题，绿色缓蚀剂引起了越来越多的关注。值得注意的是，植物是有效缓蚀剂的良好原料，也符合工业生产的要求，其中一些活性成分确实起作用。其中，淀粉和纤维素在植物中含量最多，作为工业缓蚀剂具有很大的潜力。此外，还有一些来源丰富的植物提取物，具有良好的缓蚀效果。据报道，淀粉、纤维素和其他植物提取物作为代表性的绿色缓蚀剂，对环境没有污染。尽管已经描述了淀粉、纤维素和其他植物提取物的许多优点，但是没有这样的抑制剂成功地应用于防腐工业。这些因素（来源、溶解度、用量、组成等）严重影响了它们的应用产业化。目前，还没有对这些不足之处及相关解决方案进行分析和讨论：在此，我们回顾了影响淀粉、纤维素和其他植物提取物工业应用的因素，并讨论了使其成为潜在工业缓蚀剂的具体解决方案。要点如下：等）严重影响其应用产业化。目前，还没有对这些不足之处及相关解决方案进行分析和讨论：在此，我们回顾了影响淀粉、纤维素和其他植物提取物工业应用的因素，并讨论了使其成为潜在工业缓蚀剂的具体解决方案。要点如下：等）严重影响其应用产业化。目前，还没有对这些不足之处及相关解决方案进行分析和讨论：在此，我们回顾了影响淀粉、纤维素和其他植物提取物工业应用的因素，并讨论了使其成为潜在工业缓蚀剂的具体解决方案。要点如下：1）为什么植物缓蚀剂不能真正应用于工业？2）从材料来源、溶解度、用量、组成等方面综合分析了淀粉、纤维素等植物提取物作为缓蚀剂的不足之处。3）提出了这些绿色植物缓蚀剂不能用于工业的解决方案。我们的目标是为丰富的植物成分在工业中的早期应用提出适当的建议。