Trans-resveratrol becomes more and more popular all over the world as a powerful antioxidant. Since its positive properties, including antioxidant, anti-inflammatory, anti-tumor are indisputable, nowadays trans-resveratrol is used as a component of various products from nutriceutics to body care formulations, where it is supposed to behave as natural antioxidant and anti-aging compound. It is also added to food packaging materials to increase their stability or/and prevent oxidation. Nevertheless, being released to the environment resveratrol easily forms various transformation products with potentially negative environmental and health effects. The present paper deals with transformation of pure resveratrol and its formulation used as UV-protectors in conditions of aquatic chlorination. Over 80 transformation products were tentatively identified using gas chromatography-high resolution mass spectrometry (GC-HRMS) and ultra pressure liquid chromatography-high resolution mass spectrometry (UPLC-HRMS). Chlorinated phenols and biphenyls are the most relevant among them. Estimation of toxicity of resveratrol products was carried out using luminescent bacteria V. fischeri tests.

反式白藜芦醇作为一种强大的抗氧化剂在世界各地越来越受欢迎。由于其正的性质，包括抗氧化剂，抗炎，抗肿瘤是不争的，如今反白藜芦醇被用作从营养保健品到身体护理配方的各种产品的成分，在该产品中它具有天然抗氧化剂和抗衰老化合物的作用。它也被添加到食品包装材料中以增加其稳定性或/和防止氧化。然而，白藜芦醇被释放到环境中很容易形成各种具有潜在负面环境和健康影响的转化产物。本文涉及纯白藜芦醇的转化及其在水生氯化条件下用作紫外线防护剂的配方。使用气相色谱-高分辨率质谱（GC-HRMS）和超压液相色谱-高分辨率质谱（UPLC-HRMS）初步鉴定出80多种转化产物。氯化酚和联苯是其中最相关的。使用发光细菌进行白藜芦醇产品的毒性评估V. fischeri测试。