scholarly journals Fast Triacylglycerol Screening and Semi-Quantitative Analysis of Fatty Acids in Commercial Oils by DIMS with 18-Crown-6 Ether/Trifluoracetic Acid Dopants

Author(s):  
Angelica Tonin ◽  
Marcos Ribeiro ◽  
Camila Poliseli ◽  
Roberta da Silveira ◽  
Jesuí Visentainer ◽  
...  
Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 479
Author(s):  
Shihan Wang ◽  
Yuanshuai Gan ◽  
Hong Kan ◽  
Xinxin Mao ◽  
Yongsheng Wang

As one of the featured products in northeast China, Oviductus Ranae has been widely used as a nutritious food, which contains a variety of bioactive unsaturated fatty acids (UFAs). It is necessary to establish a scientific and reliable determination method of UFA contents in Oviductus Ranae. In this work, six principal UFAs in Oviductus Ranae, namely eicosapentaenoic acid (EPA), linolenic acid (ALA), docosahexaenoic acid (DHA), arachidonic acid (ARA), linoleic acid (LA) and oleic acid (OA), were identified using UPLC-MS/MS. The UFAs identified in Oviductus Ranae were further separated based on the optimized RP-HPLC conditions. Quantitative analysis of multi-components by single-marker (QAMS) method was implemented in content determination of EPA, ALA, DHA, ARA and OA, where LA was used as the internal standard. The experiments based on Taguchi design verified the robustness of the QAMS method on different HPLC instruments and chromatographic columns. The QAMS and external standard method (ESM) were used to calculate the UFA content of 15 batches of Oviductus Ranae samples from different regions. The relative error (r < 0.73%) and cosine coefficient showed that the two methods obtained similar contents, and the method validations met the requirements. The results showed that QAMS can comprehensively and effectively control the quality of UFAs in Oviductus Ranae which provides new ideas and solutions for studying the active components in Oviductus Ranae.


Author(s):  
Parameswari P ◽  
Devika Rengaswamy

<p>ABSTRACT<br />Objective: The points of this exploration work were to decide the quantitative examination of bioactive mixes. Customarily, cutting edge meds rely<br />on the phytochemicals got from the plant source in bigger extents. Numerous bioactive auxiliary metabolites have a positive metabolic reaction on<br />different human diseases.<br />Methods: In the present examination, Artemisia nilagirica, leaves were gathered, dried, powdered and put away in hermetically sealed compartments<br />for quantitative investigation of phytochemicals according to standard strategies.<br />Results: The methanolic leaf concentrate of enrolled 4.33 mg of alkaloids, 1.22 mg of saponins, 12.4 mg of tannins, 24.3 mg of glycosides, 10.2 mg<br />terpenoids, 1.33 mg of coumarin, 59.4 mg of amino acids, 12.2 mg of fatty acids, 17.2 mg of flavonoids, 10.2 mg of phenols, and steroids in follows<br />separately.<br />Conclusion: The plant has a high helpful quality as far as an assortment of phytochemicals from leaf remove and had let to a sure level toward<br />extraction and refinement of specific bioactive mixes for human nourishment.<br />Keywords: Artemisia nilagirica, Secondary metabolites, Quantitative analysis, Leaf extract, Flavonoids.</p>


2011 ◽  
Vol 684 (1-2) ◽  
pp. 8-16 ◽  
Author(s):  
Tingting Li ◽  
Ling Dai ◽  
Lun Li ◽  
Xuejiao Hu ◽  
Linjie Dong ◽  
...  

2015 ◽  
Vol 78 (19-20) ◽  
pp. 1271-1281 ◽  
Author(s):  
Raquel O. Rodrigues ◽  
Helena Costa ◽  
Rui Lima ◽  
Joana S. Amaral

2019 ◽  
Vol 86 (5) ◽  
pp. 917-924 ◽  
Author(s):  
F. Y. Lian ◽  
H. Y. Ge ◽  
X. J. Ju ◽  
Y. Zhang ◽  
M. X. Fu

2013 ◽  
Vol 10 (12) ◽  
pp. 2122-2132 ◽  
Author(s):  
Evan L. Pannkuk ◽  
David F. Gilmore ◽  
Nathan W. Fuller ◽  
Brett J. Savary ◽  
Thomas S. Risch

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