College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.
Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.
J Sci Food Agric. 2020 Sep;100(12):4418-4424. doi: 10.1002/jsfa.10481. Epub 2020 May 30.
Sesamin and sesamolin are two typical and important lignans isolated from sesame oil. Various studies have shown the bioactivity, physiological activity, and potential health benefits of the two components. In this study, a rapid method for the simultaneous determination of sesamin and sesamolin in sesame oils was proposed. The excitation-emission fluorescence spectra of the oils were obtained after a simple pretreatment, then self-weighted alternating trilinear decomposition was used to extract the quantitative information from the very overlapping spectra.
It was found that reasonable quantification results could be obtained with the limits of detection for the two lignans. These limits were 0.05 mg/g and 0.24 mg/g, and the limits of quantitation were 0.14 mg/g and 0.74 mg/g, respectively. The average recoveries for sesamin and sesamolin were 99.05% and 94.97%.
The results indicate that, with simple sample pretreatment, the application for combining excitation-emission fluorescence spectra and self-weighted alternating trilinear decomposition can be a useful and sensitive tool for the determination of lignans in sesame oil. © 2020 Society of Chemical Industry.
芝麻素和芝麻林是从芝麻油中分离出来的两种典型的重要木脂素。各种研究表明，这两种成分具有生物活性、生理活性和潜在的健康益处。本研究提出了一种快速测定芝麻油中芝麻素和芝麻林的方法。在简单预处理后获得油的激发-发射荧光光谱，然后使用自加权交替三线性分解从非常重叠的光谱中提取定量信息。
发现可以用两种木脂素的检出限获得合理的定量结果。这些限度分别为 0.05 mg/g 和 0.24 mg/g，定量限分别为 0.14 mg/g 和 0.74 mg/g。芝麻素和芝麻林的平均回收率分别为 99.05%和 94.97%。
结果表明，采用简单的样品预处理，结合激发-发射荧光光谱和自加权交替三线性分解的应用，可以成为测定芝麻油中木脂素的一种有用且灵敏的工具。 © 2020 英国化学学会。
