Givaudan France, Argenteuil, France.
Givaudan Suisse, Vernier, Switzerland.
Environ Toxicol Chem. 2024 Jun;43(6):1242-1249. doi: 10.1002/etc.5852. Epub 2024 Apr 1.
Fragrance encapsulates are widely used in consumer care applications such as fabric softeners or other liquid laundry products; they provide multiple benefits, from fragrance protection in the commercial product to a controlled release and improved sensorial experience for the consumers. Polymeric fragrance encapsulates are in the scope of the EU regulation restricting the use of intentionally added microplastic particles, and industry is actively working on innovation programs to find biodegradable alternatives. However, particular attention needs to be paid to claims that a fragrance encapsulation system is biodegradable, because biodegradation test results can vary considerably depending on how a test material is prepared, which can even lead to false-positive biodegradation test results, as shown in our study. We demonstrate the importance of the sample preparation phase of the process. We show how the biodegradation level can fluctuate from 0% to 91%, depending on how the test material is isolated from a given microcapsule slurry system, and we present a method that can be used to obtain trustworthy biodegradation results. Environ Toxicol Chem 2024;43:1242-1249. © 2024 Givaudan France SAS. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
香氛微胶囊在织物柔软剂或其他液体洗衣产品等消费护理应用中被广泛应用；它们提供了多种益处，从商业产品中的香味保护到为消费者提供控制释放和改善感官体验。聚合体香氛微胶囊在限制有意添加微塑料颗粒使用的欧盟法规范围内，行业正在积极开展创新计划，以寻找可生物降解的替代品。然而，需要特别注意声称香氛微胶囊系统是可生物降解的声明，因为生物降解测试结果可能因测试材料的制备方式而有很大差异，这甚至可能导致生物降解测试结果出现假阳性，正如我们的研究所示。我们展示了过程中样品制备阶段的重要性。我们展示了根据从特定微胶囊浆料系统中隔离测试材料的方式，生物降解水平可以从 0%波动到 91%，并提出了一种可用于获得可靠生物降解结果的方法。Environ Toxicol Chem 2024;43:1242-1249. © 2024 Givaudan France SAS. Environmental Toxicology and Chemistry 由 Wiley Periodicals LLC 代表 SETAC 出版。
