Gryko Kamila, Kalinowska Monika, Ofman Piotr, Choińska Renata, Świderski Grzegorz, Świsłocka Renata, Lewandowski Włodzimierz
Department of Chemistry, Biology and Biotechnology, Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland.
Department of Environmental Engineering Technology, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland.
Materials (Basel). 2021 Oct 15;14(20):6098. doi: 10.3390/ma14206098.
Cinnamic acid (CA), -coumaric acid (4-hydroxycinnamic acid, 4-HCA), caffeic acid (3,4-vdihydroxycinnamic acid, 3,4-dHCA), and 3,4,5-trihydroxycinnamic acid (3,4,5-tHCA) were studied for their structural, anti-/pro-oxidant properties and biodegradability. The FT-IR, FT-Raman, UV/Vis, H and C NMR, and quantum chemical calculations in B3LYP/6-311++G** were performed to study the effect on number and position of hydroxyl group in the ring on the molecular structure of molecules. The antioxidant properties of the derivatives were examined using DPPH and HO radicals scavenging assays, ferric ion reducing antioxidant power (FRAP), cupric reducing antioxidant capacity (CUPRAC), inhibition of linoleic acid oxidation, as well as the biological antioxidant assay with . Moreover, the pro-oxidant activity of compounds in Trolox oxidation assay was estimated. The effect of the derivatives on environment on the basis of increasing the carbon and nitrogen compounds transformation processes occurring in biological wastewater treatment was studied.
对肉桂酸（CA）、对香豆酸（4-羟基肉桂酸，4-HCA）、咖啡酸（3,4-二羟基肉桂酸，3,4-dHCA）和3,4,5-三羟基肉桂酸（3,4,5-tHCA）的结构、抗氧化/促氧化性质及生物降解性进行了研究。采用傅里叶变换红外光谱（FT-IR）、傅里叶变换拉曼光谱（FT-Raman）、紫外可见光谱（UV/Vis）、氢核磁共振（H NMR）和碳核磁共振（C NMR）以及在B3LYP/6-311++G**水平上的量子化学计算，研究了环上羟基的数量和位置对分子结构的影响。通过二苯基苦味酰基自由基（DPPH）和羟基自由基（HO）清除试验、铁离子还原抗氧化能力（FRAP）、铜离子还原抗氧化能力（CUPRAC）、亚油酸氧化抑制试验以及与……的生物抗氧化试验，考察了这些衍生物的抗氧化性能。此外，还评估了化合物在特洛克斯（Trolox）氧化试验中的促氧化活性。基于生物废水处理中碳氮化合物转化过程的增加，研究了这些衍生物对环境的影响。
