Application of natural cotton fibers as an extraction sorbent for the detection of trans-resveratrol in adulterated peanut oils

【作者】Wen-Chao Han, Nian Shi, Xin-Ying Wang, Zi-Han Wang, Kai-Li Wang, Ming Gao, Lei Yu, Di Chen*, Xia Xu*

【期刊名】Food Chemistry

【影响因子】2021年: 7.514

【作者单位】School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, PR China

【年，卷(期)：页码】2021, 339: 127885-

【关键词】Cotton fiber; High-performance liquid chromatography-ultraviolet; In-syringe extraction; Peanut oil; Trans-resveratrol.

【摘要】The current study develops an effective, convenient, low-cost, and environmentally friendly method for determining trans-resveratrol (TRA) in peanut oils, the unique proportion of peanut oil, by employing natural cotton fibers without any pretreatment as extraction sorbent and an in-syringe extraction device. The primary factors affecting the extraction recovery are optimized in detail. The condition of 200.0 mg of cotton fibers, six push–pull times, 2.0 mL of n-hexane as washing solvent and 2.0 mL of ethanol as desorption solvent is selected as the best. The linear range is demonstrated to be 10–1000 ng/g with a satisfactory correlation coefficient (R2 = 0.9995), while the limit of detection is calculated as 2.47 ng/g. In addition, the recoveries of TRA are obtained in the range of 93.8–104.4% with RSDs less than 5.5%. Finally, the developed method is successfully applied to determine TRA concentrations in commercial peanut oils and other edible oils.

【全文链接】https://www.sciencedirect.com/science/article/abs/pii/S0308814620317477