Log in

Relevant bibliographies by topics / GC-MS fatty acids / Journal articles

To see the other types of publications on this topic, follow the link: GC-MS fatty acids.

Journal articles on the topic 'GC-MS fatty acids'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'GC-MS fatty acids.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Xu, Long, Changfeng Hu, Yongguo Liu, et al. "Development of a sensitive and quantitative method for the identification of two major furan fatty acids in human plasma." Journal of Lipid Research 61, no. 4 (2020): 560–69. http://dx.doi.org/10.1194/jlr.d119000514.

Full text

Abstract:

This article focuses on the establishment of an accurate and sensitive quantitation method for the analysis of furan fatty acids. In particular, the sensitivity of GC/MS and UPLC/ESI/MS/MS was compared for the identification and quantification of furan fatty acids. Different methylation methods were tested with respect to GC/MS analysis. Special attention needs to be paid to the methylation of furan fatty acids, as acidic catalysts might lead to the degradation of the furan ring. GC/MS analysis in full-scan mode demonstrated that the limit of quantitation was 10 μM. UPLC/ESI/MS/MS in multiple

APA, Harvard, Vancouver, ISO, and other styles

2

Aryani, Titin, Fitria Siswi Utami, and Sulistyaningsih Sulistyaningsih. "IDENTIFIKASI ASAM LEMAK OMEGA PADA ASI EKSKLUSIF MENGGUNAKAN KROMATOGRAFI GC-MS." Journal of Health Studies 1, no. 1 (2017): 1–7. http://dx.doi.org/10.31101/jhes.180.

Full text

Abstract:

Abstract: Quantitative research aims to identify the omega fatty acids in exclusive breast milk (ASI) Exclusive. The data analysis used data chromatogram Gas Chromatography-Mass Spectrometry (GC-MS). The data generated is breast milk (ASI) had higher levels of omega-3 fatty acids amounting to 28.24%, omega-6 and omega of 0.57% 9 at 26.56%. The conclusion from this study is there is the content of omega-3, omega-6, omega-9 fatty acids in breast milk (ASI). Highest levels of omega fatty acids in breast milk is the omega-3 fatty acid that is equal to 28.24%.Keywords: milk, omega fatty acids, GC-M

APA, Harvard, Vancouver, ISO, and other styles

3

Liguori, Angelo, Emilia Lucia Belsito, Maria Luisa Di Gioia, et al. "GC/MS Analysis of Fatty Acids in Italian Dry Fermented Sausages." Open Food Science Journal 9, no. 1 (2015): 5–13. http://dx.doi.org/10.2174/1874256401509010005.

Full text

Abstract:

The present investigation reports a study about the evolution, during ripening, of the fatty acid profile and the fatty acid composition in acylglycerols of three different fermented sausages industrially produced in the Calabria region (Southern Italy). Statistical analysis (ANOVA) was applied to the results obtained for the profiles to check all the differences between samples. The study comprised also an evaluation of the lipid oxidation level. All kind of sausages showed a free fatty acids profile in which the monounsaturated fatty acids were predominant, followed by saturated and polyunsa

APA, Harvard, Vancouver, ISO, and other styles

4

Watanabe, Atsushi, Chu Watanabe, Robert Freeman, Mari Nakajima, Norio Teramae, and Hajime Ohtani. "QUANTITATIVE ANALYSIS OF FATTY ACIDS IN VULCANIZED STYRENE–BUTADIENE RUBBER BY THERMAL DESORPTION AND THERMALLY ASSISTED HYDROLYSIS AND METHYLATION-GC/MS." Rubber Chemistry and Technology 87, no. 3 (2014): 516–25. http://dx.doi.org/10.5254/rct.14.86941.

Full text

Abstract:

ABSTRACT Determination of stearic acid in rubber is very important from the viewpoint of quality control of products. In place of the conventional liquid-phase extraction procedures for the analysis of additives in rubber, stearic and palmitic acids in vulcanized styrene–butadiene rubber (SBR) samples were directly analyzed in the solid state by thermal desorption (TD)–gas chromatography (GC)/mass spectrometry (MS) and thermally assisted hydrolysis and methylation (THM)–GC/MS. It was found that the precision of analytical data was only fair in the TD-GC/MS analysis, with 7.8% relative standard

APA, Harvard, Vancouver, ISO, and other styles

5

Hamerly, Timothy, Brian Tripet, Louie Wurch, et al. "Characterization of Fatty Acids in Crenarchaeota by GC-MS and NMR." Archaea 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/472726.

Full text

Abstract:

Lipids composed of condensed isoprenyl units connected to glycerol backbones by ether linkages are a distinguishing feature of Archaea. Data suggesting that fatty acids with linear hydrocarbon chains are present in some Archaea have been available for decades. However, lack of genomic and biochemical evidence for the metabolic machinery required to synthesize and degrade fatty acids has left the field unclear on this potentially significant biochemical aspect. Because lipids are energy currency and cell signaling molecules, their presence in Archaea is significant for understanding archaeal bi

APA, Harvard, Vancouver, ISO, and other styles

6

Ochin, Chinedu, and Mahdi Garelnabi. "Glycerophospholipid Fatty Acids GC-MS Analysis in Mice Fed Oxidized Linoleic Acids." Journal of Clinical Lipidology 11, no. 3 (2017): 826–27. http://dx.doi.org/10.1016/j.jacl.2017.04.090.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Chandrasekaran, Manivachagam, Krishnan Kannathasan, and Venugopalan Venkatesalu. "Antimicrobial Activity of Fatty Acid Methyl Esters of Some Members of Chenopodiaceae." Zeitschrift für Naturforschung C 63, no. 5-6 (2008): 331–36. http://dx.doi.org/10.1515/znc-2008-5-604.

Full text

Abstract:

Fatty acid methyl ester (FAME) extracts of four halophytic plants, viz. Arthrocnemum indicum, Salicornia brachiata, Suaeda maritima and Suaeda monoica belonging to the family Chenopodiaceae, were prepared and their composition was analyzed by GC-MS. The FAME extracts were also screened for antibacterial and antifungal activities. The GC-MS analysis revealed the presence of more saturated fatty acids than unsaturated fatty acids. Among the fatty acids analyzed, the relative percentage of lauric acid was high in S. brachiata (61.85%). The FAME extract of S. brachiata showed the highest antibacte

APA, Harvard, Vancouver, ISO, and other styles

8

Polzer, J., and K. B�chmann. "Determination of fatty acids in atmospheric samples via GC/MS." Fresenius' Journal of Analytical Chemistry 340, no. 9 (1991): 555–59. http://dx.doi.org/10.1007/bf00322429.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Peng, Lian-Xin, Liang Zou, Mao-Ling Tan, et al. "Free amino acids, fatty acids and phenolic compounds in Tartary buckwheat of different hull colour." Czech Journal of Food Sciences 35, No. 3 (2017): 214–22. http://dx.doi.org/10.17221/185/2016-cjfs.

Full text

Abstract:

In this paper, free amino acids, fatty acids, and phenolic compounds in buckwheat of different hull colour were quantified by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), gas chromatography-mass spectrometry (GC-MS), and high performance liquid chromatography-ultraviolet detector (HPLC-UV), respectively. A total of 20 free amino acids, 8 fatty acids, and 6 phenolic compounds were detected in Tartary buckwheat flour and bran. The data on concentrations were subjected to common chemometric analyses, including principal component analysis (PCA) and hierarchical c

APA, Harvard, Vancouver, ISO, and other styles

10

Jl, Altuna, Silva M, Álvarez M, Quinteros Mf, Morales D, and Carrillo W. "ECUADORIAN QUINOA (CHENOPODIUM QUINOA WILLD) FATTY ACIDS PROFILE." Asian Journal of Pharmaceutical and Clinical Research 11, no. 11 (2018): 209. http://dx.doi.org/10.22159/ajpcr.2018.v11i11.24889.

Full text

Abstract:

Objective: The aim of this study was to determine the methyl esters fatty acids (FAMEs) profile of quinoa seeds (Chenopodium quinoa Willd) of a sample cultivated in Guaranda, Ecuador.Methods: Quinoa oil was obtained from quinoa seeds using the Soxhlet method. FAMEs identification and quantification were carried out using the gas chromatography (GC) with a mass spectrometry (MS), using the database Library NIST14.L to identify the fatty acids present in quinoa oil.Results: Quinoa oil from Ecuador was analyzed by GC-MS, to obtain four majoritarian fatty acids, palmitic acid (10.66%), oleic acid

APA, Harvard, Vancouver, ISO, and other styles

11

Angeloni, Simone, Serena Scortichini, Dennis Fiorini, et al. "Characterization of Odor-Active Compounds, Polyphenols, and Fatty Acids in Coffee Silverskin." Molecules 25, no. 13 (2020): 2993. http://dx.doi.org/10.3390/molecules25132993.

Full text

Abstract:

For the first time the volatile fraction of coffee silverskin has been studied focusing on odor-active compounds detected by gas chromatography-olfactometry/flame ionization detector (GC-O/FID) system. Two approaches, namely headspace (HS) analysis by solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) and odor-active compounds analysis by gas chromatography-olfactometry/flame ionization detector (GC-O/FID), have been employed to fully characterize the aroma profile of this by-product. This work also provided an entire characterization of the bioactive compounds prese

APA, Harvard, Vancouver, ISO, and other styles

12

Savych, Alona, Svetlana Marchyshyn, and Roksolana Basaraba. "Determination of fatty acid composition content in the herbal antidiabetic collections." Pharmacia 67, no. 3 (2020): 153–59. http://dx.doi.org/10.3897/pharmacia.67.e51812.

Full text

Abstract:

It was determined the qualitative composition and the quantitative content of fatty acids in the herbal antidiabetic collection № 3, № 4, № 7, № 13, № 19, which are used in folk medicine for prevention and treatment of diabetes mellitus type 2 in Ukraine by GC/MS method. According to the results it was identified 8 fatty acids in the herbal antidiabetic collection № 3, 13 fatty acids in the herbal antidiabetic collection № 4, 12 fatty acids in the herbal antidiabetic collection № 7, 13 fatty acids in the herbal antidiabetic collection № 13 and 11 fatty acids in the herbal antidiabetic collecti

APA, Harvard, Vancouver, ISO, and other styles

13

W, Carrillo, Carpio C, Morales D, Vilcacundo E, Álvarez M, and Silva M. "CONTENT OF FATTY ACIDS IN CORN (ZEA MAYS L.) OIL FROM ECUADOR." Asian Journal of Pharmaceutical and Clinical Research 10, no. 8 (2017): 150. http://dx.doi.org/10.22159/ajpcr.2017.v10i8.18786.

Full text

Abstract:

Objective: The aim of this work was to determine the fatty acids content in corn seeds oil (Zea mays) sample cultivated in Ecuador.Methods: Corn oil was obtained from corn oil seeds using the cold pressing method. Methyl esters fatty acids analysis were carried out using the gas chromatography (GC) method with a mass selective detector and using the database library NIST 14.L to identify the compounds present in the corn seed oil.Results: Methyl esters fatty acids were identified from corn (Z. mays) seeds using the GC mass spectrometer (GC-MS) analytical method. Fatty acids were analyzed as me

APA, Harvard, Vancouver, ISO, and other styles

14

Doneanu, C., V. Radulescu, D. M. Efstatiade, V. Rusu, and A. Covaci. "Capillary GC/MS characterization of fatty acids from indigenous silkworm oil." Journal of Microcolumn Separations 9, no. 1 (1997): 37–41. http://dx.doi.org/10.1002/(sici)1520-667x(1997)9:1<37::aid-mcs6>3.0.co;2-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Jia, Yonghong, Quoying Qian, Jingfen Xia, and Jifang Yang. "Comparative analysis to fatty acids from three diatoms by GC–MS." Journal of Biotechnology 136 (October 2008): S572. http://dx.doi.org/10.1016/j.jbiotec.2008.07.1349.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Calderón, Angela I., Adam Hodel, Evisabel Craig, and Mahabir P. Gupta. "Triterpenes and fatty acids from Discophora guianensis identified by GC–MS." Biochemical Systematics and Ecology 50 (October 2013): 16–18. http://dx.doi.org/10.1016/j.bse.2013.03.034.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Chen, Meiqing, Yangdong Zhang, Fengen Wang, Nan Zheng, and Jiaqi Wang. "Simultaneous Determination of C18 Fatty Acids in Milk by GC-MS." Separations 8, no. 8 (2021): 118. http://dx.doi.org/10.3390/separations8080118.

Full text

Abstract:

The determination of C18 fatty acids (FAs) is a key and difficult aspect in FA profiling, and a qualified method with good chromatographic separation and high sensitivity, as well as easy methylation, is required. A GC-MS method was established to simultaneously determine C18 FAs in milk. To simplify the methylation protocol for milk samples, besides a base-catalyzation methylation (50 °C for 20 min), the necessity of an additional acid-catalyzation was also studied using different temperatures (60 °C, 70 °C, 80 °C, and 90 °C) and durations (90 min and 150 min). The results showed that the chr

APA, Harvard, Vancouver, ISO, and other styles

18

E, Vilcacundo, Alvarez M, Silva M, Carpio C, Morales D, and Carrillo W. "FATTY ACIDS COMPOSITION OF TOCTE (JUGLANS NEOTROPICA DIELS) WALNUT FROM ECUADOR." Asian Journal of Pharmaceutical and Clinical Research 11, no. 2 (2018): 395. http://dx.doi.org/10.22159/ajpcr.2018.v11i2.16344.

Full text

Abstract:

Objective: The aim of this study was to determine the fatty acids composition in a tocte seeds oil (Juglans neotropica Diels) sample cultivated in Ecuador.Methods: Tocte oil was obtained from tocte seeds using the cold pressing method. Fatty acids analysis was carried out using the gas chromatography method with a mass selective detector (GC/MSD) and using the database Library NIST14.L to identify the compounds.Results: Methyl esters fatty acids were identified from tocte (J. neotropica Diels) walnut using the GC–MS analytical method. The total lipid content of tocte walnuts seeds of plants cu

APA, Harvard, Vancouver, ISO, and other styles

19

Liu, Xiao Feng, and Xiao Yan Cao. "Physicochemical Properties Study and GC/MS Analysis of Monomer Acid." Advanced Materials Research 781-784 (September 2013): 72–75. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.72.

Full text

Abstract:

Monomer acid was the byproduct of preparing dimer acid from oleic acid in industry. Study its components and properties will contribute to the exploitation and application of it. First, we researched the physicochemical properties of monomer acid, such as iodine value, acid value, saponification value, and so on. The conclusion showed that the sample was a mixed fatty acid which contained longer chain of carbon and had high quality. Then, the chemical constituents of fatty acid in monomer acid were determined by GC/MS. After the sample was etherified via methanol, the chemical components and t

APA, Harvard, Vancouver, ISO, and other styles

20

Lolli, Veronica, Angela Marseglia, Gerardo Palla, Emanuela Zanardi, and Augusta Caligiani. "Determination of Cyclopropane Fatty Acids in Food of Animal Origin by 1H NMR." Journal of Analytical Methods in Chemistry 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/8034042.

Full text

Abstract:

Cyclopropane fatty acids (CPFAs) are unusual fatty acids of microbial origin, recently detected in milk and dairy products. CPFAs have been demonstrated to be interesting molecular markers for authentication of dairy products obtained without ensiled feeds. Moreover, they can also be recognized as a new secondary component of human diet. Information is lacking on the presence of cyclic fatty acids in other food sources. Cyclopropane fatty acids have been detected by GC-MS analysis in cheese and other animal fats in concentration ranging from 200 to 1000 mg/kg fat, but in some cases, the comple

APA, Harvard, Vancouver, ISO, and other styles

21

Byss, M., J. Tříska, and D. Elhottová. "GC–MS–MS analysis of bacterial fatty acids in heavily creosote-contaminated soil samples." Analytical and Bioanalytical Chemistry 387, no. 4 (2007): 1573–77. http://dx.doi.org/10.1007/s00216-006-1024-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Nickavar, Bahman, Faraz Mojab, Katayoun Javidnia, and Mohammad Ali Roodgar Amoli. "Chemical Composition of the Fixed and Volatile Oils of Nigella sativa L. from Iran." Zeitschrift für Naturforschung C 58, no. 9-10 (2003): 629–31. http://dx.doi.org/10.1515/znc-2003-9-1004.

Full text

Abstract:

AbstractThe chemical composition of the extracted fixed oil (total fatty acid composition) and volatile oil of Nigella sativa L. seeds grown in Iran were determined by GC and GC/MS. Eight fatty acids (99.5%) and thirty- two compounds (86.7%) have been identified in the fixed and volatile oils, respectively. The main fatty acids of the fixed oil were linoleic acid (55.6%), oleic acid (23.4%), and palmitic acid (12.5%). The major compounds of the volatile oil were trans-anethole (38.3%), p-cymene (14.8%), limonene (4.3%), and carvone (4.0%).

APA, Harvard, Vancouver, ISO, and other styles

23

Dembitsky, Valery M., Saleh Abu-Lafi, and Lumír O. Hanuš. "Occurrence of Sulfur-Containing Fatty Acids in Allium sativum." Natural Product Communications 2, no. 7 (2007): 1934578X0700200. http://dx.doi.org/10.1177/1934578x0700200713.

Full text

Abstract:

The occurrence of saturated (14:0, 15:0, 16:0, and 18:0), and unsaturated (7–16:1, 7–18:1, 9–18:1, 9,12–18:2, 9,12,15–18:3) acids, together with novel cyclic sulfur-containing fatty acids in garlic ( Allium sativum) is reported. Organosulfur compounds, fatty acids, and sulfur-containing fatty acids were separated and characterized by GC–MS with serially coupled capillary columns with consecutive nonpolar and semipolar stationary phases.

APA, Harvard, Vancouver, ISO, and other styles

24

Psodorov, Djordje, Marijana Acanski, Djura Vujic, Jovana Brkljaca, and Dragan Psodorov. "Homogenity of oil and sugar components of flour amaranth investigated by GC-MS." Chemical Industry and Chemical Engineering Quarterly 21, no. 1-1 (2015): 71–76. http://dx.doi.org/10.2298/ciceq131104007p.

Full text

Abstract:

Gas chromatography with mass spectrometry (GC-MS) was used for performing a qualitative analysis of liposoluble and hydrosoluble flour extracts of three genotypes of Amaranthus sp. All three samples were first defatted with hexane. Hexane extracts were used for the analysis of fatty acids of lipid components. TMSH (Trimethylsulfonium hydroxide, 0.2M in methanol) was used as the transesterification reagent. With transesterification reaction, fatty acids were esterified from acilglycerol to methyl-esters. Defatted flour samples were dried in the air and then extracted with ethanol. Ethanol extra

APA, Harvard, Vancouver, ISO, and other styles

25

Jl, Altuna, Silva M, Alvarez M, Quinteros Mf, Morales D, and Wilman Carrillo. "YELLOW PITAYA (HYLOCEREUS MEGALANTHUS) FATTY ACIDS COMPOSITION FROM ECUADORIAN AMAZONIA." Asian Journal of Pharmaceutical and Clinical Research 11, no. 11 (2018): 218. http://dx.doi.org/10.22159/ajpcr.2018.v11i11.24922.

Full text

Abstract:

Objective: The aim of this study was to determine the composition of methyl esters fatty acids (FAMEs) in yellow pitaya (Hylocereus megalanthus) seeds cultivated in the Palora, Ecuador Amazonian region.Methods: Yellow pitaya oil was obtained from yellow pitaya seeds using the Soxhlet technique. FAMEs identification and quantification were carried out using the gas chromatography (GC) with mass spectrometry (MS) and the database Library NIST14.L to identify the FAMEs present in yellow pitaya oil.Results: Yellow pitaya oil from Ecuador Amazonian region was analyzed by GC-MS, to obtain the five m

APA, Harvard, Vancouver, ISO, and other styles

26

Fitri, A. Laga, Z. Dwyana, and A. B. Tawali. "Composition of amino acids and fatty acids on Luwak coffee processing." Food Research 5, no. 3 (2021): 60–64. http://dx.doi.org/10.26656/fr.2017.5(3).637.

Full text

Abstract:

The processing carried out on coffee beans such as fermentation and roasting can affect the contents of amino and fatty acids of coffee beans. This study aimed to determine the amount of amino acid and fatty acid content in Luwak coffee bean during processing. The amino acids of coffee were analyzed using HPLC, while fatty acids of coffee were analyzed using GC-MS. The results showed a change in total amino acid content in raw coffee bean (3.04%), green bean coffee (6.93%), and roasted coffee (6.83%). The total fatty acid of raw coffee bean (1199.86 mg/100 g), green bean coffee (3147.56 mg/100

APA, Harvard, Vancouver, ISO, and other styles

27

Odion, Emmanuel Eimiomodebheki, Rachel Ogheneovo Ogboru, and Mike Oshor Ighene. "Identification of Compounds in Elaeis guineensis Fruits using GC-MS." Dhaka University Journal of Pharmaceutical Sciences 19, no. 2 (2020): 153–59. http://dx.doi.org/10.3329/dujps.v19i2.50631.

Full text

Abstract:

The aim of this study was to identify the chemical constituents of Elaeis guineensis (EG) using GCMS. EG fruits were purchased from a local market in Edo state and was identified, cleaned, boiled and extracted. The resultant crude extract was strained through filter paper and partitioned into n-hexane, dichloromethane and ethyl acetate before subjected to GC-MS analysis. Eighty-two (82) compounds were identified and the major components are hexadecanoic acid, methyl ester (10.53%), oleic acid (25.92%). n-hexadecanoic acid (31.41%), cis-vaccenic acid (22.82%) and octadecanoic acid (13.16%). Pla

APA, Harvard, Vancouver, ISO, and other styles

28

Mohammadi, S., Kh Piri, and M. Dinarvand. "Identification of chemical compositions in some medicinal plants by GC/MS analysis." Lebanese Science Journal 20, no. 1 (2019): 161–72. http://dx.doi.org/10.22453/lsj-020.1.161-172.

Full text

Abstract:

Medicinal plantsused in treatment of diseases earlier times, are potential sources of new drugs. In this study, chemical compositions of Echium khuzestanicum, Marrubium anisodan and Echinops cephalotes were identified by Gas Chromatography-Mass Spectrometry(GC/MS).M.anisodanand E.cephalotes aerial organs and E.khuzistanicum flowers were extracted by maceration method. According to the results, 46 kinds of chemical compounds found in methanol extract of E.khuzestanicum. There are mucilage, fatty acids, flavonoid and diterpenes in the flower of E.khuzestanicum. Seventy sixkinds of chemical compo

APA, Harvard, Vancouver, ISO, and other styles

29

Inguglia, Luigi, Marco Chiaramonte, Vita Di Stefano, et al. "Salmo salar fish waste oil: Fatty acids composition and antibacterial activity." PeerJ 8 (June 19, 2020): e9299. http://dx.doi.org/10.7717/peerj.9299.

Full text

Abstract:

Background and aims Fish by-products are generally used to produce fishmeal or fertilizers, with fish oil as a by-product. Despite their importance, fish wastes are still poorly explored and characterized and more studies are needed to reveal their potentiality. The goal of the present study was to qualitatively characterize and investigate the antimicrobial effects of the fish oil extracted from Salmo salar waste samples and to evaluate the potential use of these compounds for treating pathogen infections. Methods Salmo salar waste samples were divided in two groups: heads and soft tissues. F

APA, Harvard, Vancouver, ISO, and other styles

30

Savych, Alona, Roksolana Basaraba, Nataliіa Muzyka, and Pavlina Ilashchuk. "Analysis of fatty acid composition content in the plant components of antidiabetic herbal mixture by GC-MS." Pharmacia 68, no. 2 (2021): 433–39. http://dx.doi.org/10.3897/pharmacia.68.e66693.

Full text

Abstract:

Medical plants and their combinations due to the wide range of biologically active substances can influence on various links of the pathogenetic mechanism of development of diabetes mellitus and its complications. One of such combinations is an anidiabetic herbal mixture (Urtica dioica L. leaf, Rosa majalis L. fruits, Vaccinium myrtillus L. leaf, Mentha piperita L. herb and Taraxacum officinale L. roots) with established hypoglycemic, hypolipidemic, antioxidant, hepatoprotective, pancreatoprotective activity in previous pharmacological study in vivo. Thus, the aim of this study was to identify

APA, Harvard, Vancouver, ISO, and other styles

31

Budniak, Liliia, Liudmyla Slobodianiuk, Svitlana Marchyshyn, and Olha Demydiak. "Determination of Arnica foliosa Nutt. fatty acids content by GC/MS method." ScienceRise: Pharmaceutical Science, no. 6 (28) (December 30, 2020): 14–18. http://dx.doi.org/10.15587/2519-4852.2020.216474.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

NUNOME, Yoko, Takao TSUDA, and Kuniyuki KITAGAWA. "Determination of Fatty Acids in Human Sweat during Fasting Using GC/MS." Analytical Sciences 26, no. 8 (2010): 917–19. http://dx.doi.org/10.2116/analsci.26.917.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Harvey, David J. "Picolinyl esters for the structural determination of fatty acids by GC/MS." Molecular Biotechnology 10, no. 3 (1998): 251–60. http://dx.doi.org/10.1007/bf02740846.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Guntarti, Any. "Authentication of Dog Fat With Gas Chromatography-Mass Spectroscopy Combined With Chemometrics." International Journal of Chemistry 10, no. 4 (2018): 124. http://dx.doi.org/10.5539/ijc.v10n4p124.

Full text

Abstract:

Indonesia is a country with a majority of Muslim population. As a Muslim majority country, providing halal products becomes a liability. The problem that has received a lot of attention right now is the concern that contamination of food products by meat, one of them is dog meat. The purpose of this study was to authenticate dog fat by using Gas Chromatography-Mass Spectrophotometry (GC-MS)combined with chemometrics.   Dogs that used in the study were taken from Bantul, Yogyakarta. Dog snacks were heated in an oven at 90-100ᵒC for approximately one hour. Oils / fats obtained from d

APA, Harvard, Vancouver, ISO, and other styles

35

Wang, Mei, Bharathi Avula, Yan-Hong Wang, Jianping Zhao, Jon F. Parcher, and Ikhlas A. Khan. "Fatty Acid Analysis of Saw Palmetto (Serenoa repens) and Pygeum (Prunus africana) in Dietary Supplements by Gas Chromatography/Mass Spectrometry in the Selected Ion Monitoring Mode." Journal of AOAC INTERNATIONAL 96, no. 3 (2013): 560–66. http://dx.doi.org/10.5740/jaoacint.12-284.

Full text

Abstract:

Abstract A GC/selected ion monitoring mode-MS (GC/SIM-MS) method was developed to chemically distinguish saw palmetto and pygeum in dietary supplements. A sample set including authenticated plant samples, commercial plant extracts, a National Institute of Standards and Technology standard reference material extract, and commercial dietary supplements purported to contain either saw palmetto, pygeum, or both was investigated. Fatty acid methyl esters (FAMEs) were analyzed by GC/SIM-MS. The ability to selectively monitor each solute allowed accurate quantitation of all detected FAMEs, even those

APA, Harvard, Vancouver, ISO, and other styles

36

Suaniti, Ni Made, I. Wayan Bandem Adnyana, and Oka Ratnayani. "Characterization and Identification of Fatty Acid Ethyl Esters from Refined Used Cooking Oil as Biodiesel by Using Spectroscopic Techniques Approach." Key Engineering Materials 877 (February 2021): 172–79. http://dx.doi.org/10.4028/www.scientific.net/kem.877.172.

Full text

Abstract:

Fatty acids composition in used cooking oil vary that need to analyze before making biodiesel to meet the requirement of a diesel engine. The purpose of this study was to identify and characterize fatty acid ethyl ethers in used cooking oil refined using various acids after a one-stage transesterification process using a heterogeneous CaO catalyst to produce biodiesel. The analytical method applied was spectroscopic technique by using Fourier Transform Infra Red (FTIR) and Gas Chromatography-Mass Spectrometry (GC-MS) instruments. The results showed that the characteristics of fatty acid ethyl

APA, Harvard, Vancouver, ISO, and other styles

37

Hamia, Chahrazed, Nadhir Gourine, Hadjer Boussoussa, Mokhtar Saidi, Emile M. Gaydou, and Mohamed Yousfi. "Chemical Composition and Antioxidant Activity of the Essential Oil and Fatty Acids of the Flowers of Rhanterium Adpressum." Natural Product Communications 8, no. 8 (2013): 1934578X1300800. http://dx.doi.org/10.1177/1934578x1300800837.

Full text

Abstract:

The essential oil obtained by hydrodistillation of the flowers of Rhanterium adpressum Coss. & Durieu was analyzed using GC and GC-MS. The essential oil was very rich in monoterpene compounds. The major components identified were the monoterpene hydrocarbons: camphene (21.8%), myrcene (19.3%) and α-pinene (17.4%). Other compounds, including limonene, β-pinene and terpinol-4-ol, were present in low content (4–6%). The composition of the fatty acids in the lipid extract obtained from the flowers was also investigated by GC and GC-MS. The main fatty acids identified were palmitic (47.4%), ole

APA, Harvard, Vancouver, ISO, and other styles

38

Mihai, Adriana Laura, Mioara Negoiță, Alina Cristina Adascălului, Valentin Ionescu, and Nastasia Belc. "Evaluation of Fatty Acids Composition of Some Food Samples by Using GC-MS and NMR Techniques." “Agriculture for Life, Life for Agriculture” Conference Proceedings 1, no. 1 (2018): 548–54. http://dx.doi.org/10.2478/alife-2018-0086.

Full text

Abstract:

Abstract The purpose of this paper was to compare the composition (weight % of total identified FA) in saturated (SFA), monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids from 3 food matrices (sunflower oil, palm oil and lard) by 2 different techniques, gas chromatography - mass spectrometry (GC-MS) and nuclear magnetic resonance (NMR). For GC-MS technique, fatty acid methyl esters (FAMEs) identification in the samples was performed by comparison of the retention times (RT) and the mass/charge (m/z) ratio characteristic of each FAME component in the reference standards used (F.A.M.E

APA, Harvard, Vancouver, ISO, and other styles

39

Negri, AP, HJ Cornell, and DE Rivett. "The nature of Covalently bound fatty acids in wool fibres." Australian Journal of Agricultural Research 42, no. 8 (1991): 1285. http://dx.doi.org/10.1071/ar9911285.

Full text

Abstract:

The wool fibre contains a fatty acid component which can only be liberated from the fibre by treatment with alcoholic alkali solutions. The major fatty acid from this component has been isolated in quantity and purified. Using GC/MS and NMR, the fatty acid was identified as 18-methyleicosanoic acid. The results obtained from transesterification experiments suggest that the fatty acid is covalently bound to the fibre protein by an ester linkage.

APA, Harvard, Vancouver, ISO, and other styles

40

Yang, Cai-qiong, Nasir Iqbal, Bao-yu Hu, et al. "Targeted metabolomics analysis of fatty acids in soybean seeds using GC-MS to reveal the metabolic manipulation of shading in the intercropping system." Analytical Methods 9, no. 14 (2017): 2144–52. http://dx.doi.org/10.1039/c7ay00011a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Mazurek, Joy, Marie Svoboda, and Michael Schilling. "GC/MS Characterization of Beeswax, Protein, Gum, Resin, and Oil in Romano-Egyptian Paintings." Heritage 2, no. 3 (2019): 1960–85. http://dx.doi.org/10.3390/heritage2030119.

Full text

Abstract:

This article presents results from a binding media survey of 61 Romano-Egyptian paintings. Most of the paintings (51) are the better-known funerary mummy portraits created using either encaustic or tempera paint medium. Samples from all the paintings (on wooden panels or linen shrouds) were analyzed with gas chromatography/mass spectrometry (GC/MS) to identify waxes, fatty acids, resins, oils, and proteins in one sample. Analytical protocols that utilized three separate derivatization techniques were developed. The first analysis identified free fatty acids, waxes, and fatty acid soaps, the se

APA, Harvard, Vancouver, ISO, and other styles

42

Li, Mei, Jian Ling Xia, Shou Hai Li, Kun Huang, and Mei Wang. "Study on Fatty Acid Composition and Variation Analysis of Tung Oils in China by GC/MS." Advanced Materials Research 554-556 (July 2012): 2018–23. http://dx.doi.org/10.4028/www.scientific.net/amr.554-556.2018.

Full text

Abstract:

To study the fatty acid composition and analysis the variation among the samples of tung oil collected from Guangxi，Chongqing, Hunan, Hubei and Guizhou Provinces of China．Gas chromatography-mass spectrometry(GC-MS) were employed to determine the fatty acid composition of tung oil．The results show that the main composition of the tung oil in China are n-hexadecanoic acid, linoleic acid, oleic acid, stearic acid, α-octadecatrienoic acid, β-octadecatrienoic acid. Tung oil contains octadecatrienoic acid 72.56～88.59% and polyunsaturated fatty acids 80.26~92.39%. The content of octadecatrienoic acid

APA, Harvard, Vancouver, ISO, and other styles

43

Yanhua, Wang, Wu Fuhua, Guo Zhaohan, et al. "Analysis Fatty Acids Profile in Tabanus bivittatus Mats with Gas Chromatography-Mass Spectrometry." Open Biotechnology Journal 9, no. 1 (2015): 113–18. http://dx.doi.org/10.2174/1874070701509010113.

Full text

Abstract:

Tabanus bivittatus Mats., a traditional Chinese medicine, is commonly used for cardiovascular disorders treatment including atherosclerosis. There have been only a few researches on its chemical components, and no detailed report has appeared on its fatty acids. To develop a simple and effective method for the extraction of total fatty acids from Tabanus bivittatus Mats., the Soxhlet extraction (SE) condition was optimized with response surface methodology. The fatty acid composition of the extract were determined by GC-MS with previous derivatization to fatty acid methyl esters (FAMEs). The m

APA, Harvard, Vancouver, ISO, and other styles

44

Raish, Mohammad, Ajaz Ahmad, Basit L. Jan, et al. "GC-MS-based Metabolomic Profiling of Thymoquinone in Streptozotocin-induced Diabetic Nephropathy in Rats." Natural Product Communications 12, no. 4 (2017): 1934578X1701200. http://dx.doi.org/10.1177/1934578x1701200423.

Full text

Abstract:

Diabetic nephropathy is a common complication of diabetes mellitus and one of the major etiologies of end-stage renal disease. Specific therapeutic interventions are necessary to treat such complications. The present study was designed to investigate the metabolomic changes induced by thymoquinone for the treatment of diabetic nephropathy, using a rodent model. Rats were divided into three different groups (n = 6 each): control, diabetic, and thymoquinone-treated diabetic groups. Metabolites in serum samples were analyzed via gas chromatography-mass spectrometry. Multiple changes were observed

APA, Harvard, Vancouver, ISO, and other styles

45

Pejin, Boris, Ljubodrag Vujisic, Marko Sabovljevic, Aneta Sabovljevic, Vele Tesevic, and Vlatka Vajs. "Preliminary analysis of fatty acid chemistry of Kindbergia praelonga and Kindbergia stokesii (Brachytheciaceae)." Journal of the Serbian Chemical Society 75, no. 12 (2010): 1637–40. http://dx.doi.org/10.2298/jsc100209129p.

Full text

Abstract:

Moss species of the family Brachytheciaceae, Kindbergia praelonga (Hedw.) Ochyra and Kindbergia stokesii (Turn.) Ochyra, were preliminary analysed for their fatty acid composition with the aim of studying the chemical relationship of these two entities. Fatty acid methyl esters were examined by GC and GC-MS in their methanol extracts. Thirteen fatty acids were identified. It is likely that the mosses are chemically distinguishable and should be treated as separate entities. However, additional chemical constituents of various moss samples, such as phenolic acids, their derivatives and flavonoi

APA, Harvard, Vancouver, ISO, and other styles

46

Berkov, Strahil, Milena Nikolova, Nevena Hristozova, Georgi Momekov, Iliana Ionkova, and Dimitar Djilianov. "GC-MS profiling of bioactive extracts from Haberlea rhodopensis: An endemic resurrection plant." Journal of the Serbian Chemical Society 76, no. 2 (2011): 211–20. http://dx.doi.org/10.2298/jsc100324024b.

Full text

Abstract:

GC-MS metabolic profiling of the apolar and polar fractions from methanolic extracts of Haberlea rhodopensis revealed more than one hundred compounds (amino acids, fatty acids, phenolic acids, sterols, glycerides, saccharides, etc.). Bioactivity assays showed that the polar fractions possessed strong free radical scavenging activity (IC50 - 19.95 ?14.11 ?g ml-1 for fresh leaves and 50.04 ?23.16 ?g ml-1 for desiccated leaves), while both the polar and apolar fractions failed to provoke any significant cytotoxic effects against the tested cell lines. Five compounds possessing antiradical activit

APA, Harvard, Vancouver, ISO, and other styles

47

Cantellops, Dennis, Anne P. Reid, Ronald R. Eitenmiller, and Austin R. Long. "Determination of Lipids in Infant Formula Powder by Direct Extraction Methylation of Lipids and Fatty Acid Methyl Esters (FAME) Analysis by Gas Chromatography." Journal of AOAC INTERNATIONAL 82, no. 5 (1999): 1128–39. http://dx.doi.org/10.1093/jaoac/82.5.1128.

Full text

Abstract:

Abstract Fatty acid methyl esters (FAMEs) of pure triglyceride standards, oils, and fat from dry matrixes were formed by transesterification using sodium methoxide in methanol–hexane. FAMEs were produced by direct addition of sodium methoxide¯hexane to samples and heating to simultaneously extract and transesterify acyl lipids. FAMEs were quantitated by capillary gas chromatography (GC) over a fatty acid concentration range of 0 to 1.7 mg/mL (r ≥ 0.9997). Total fat was calculated as the sum of individual fatty acids expressed as triglyceride equivalents, in accordance with nutrition labeling g

APA, Harvard, Vancouver, ISO, and other styles

48

Liang, Zhenhua, Shanei Li, Qiongxin Liang, Liqiang Ji, Jinmei Wang, and Changqin Li. "Analysis on the Fatty Acids and Volatile Components in Pleurotus geesteranus by HS-SPME-GC-MS." Journal of Food Quality 2020 (September 7, 2020): 1–5. http://dx.doi.org/10.1155/2020/8894066.

Full text

Abstract:

The volatile constituents and fatty acids in Pleurotus geesteranus were assayed by headspace solid-phase microextraction coupled with GC-MS. There were 5 volatile compounds in P. geesteranus that accounted for 43.43% of the total ion current peak area, and its main compounds were 2-undecanone (13.99%), 3-ethyl-2,5-dimethyl pyrazine (12.67%), and l-β-bisabolene (6.79%). Fourteen compounds were identified in the ethanol extract of P. geesteranus and 6 fatty acids were identified from the petroleum ether extract, which accounted for 93.72% and 98.48% of the total ion current peak area, the main c

APA, Harvard, Vancouver, ISO, and other styles

49

Verawati, Verawati, Dedi Nofiandi, and Rahmawati Rahmawati. "PROFIL GC-MS DAN NILAI TOKSISITAS LC50 FRAKSI NON POLAR DAUN Solenostemon scutellarioides (L) Codd." Scientia : Jurnal Farmasi dan Kesehatan 9, no. 1 (2019): 7. http://dx.doi.org/10.36434/scientia.v9i1.180.

Full text

Abstract:

ABSTRACT A study has been conducted to determine the chemical content profile of LC50 values from the hexane fraction of ethanolic extract of piladang leaves (Solenostemon scutellarioides (L.) Codd). The chemical content of the hexane fraction was analyzed by using GC-MS while the LC50 value was determined by the Brine Shrimp Lethality Test method. The results of the LC50 value of the hexane fraction of piladang leaf (Solenostemon scutellarioides (L.) Codd) was obtained 96.51 ppm included in the toxic category. GC-MS analysis results showed 25 different compounds of different area and composed

APA, Harvard, Vancouver, ISO, and other styles

50

Bunse, Marek, Peter Lorenz, Florian C. Stintzing, and Dietmar R. Kammerer. "Insight into the Secondary Metabolites of Geum urbanum L. and Geum rivale L. Seeds (Rosaceae)." Plants 10, no. 6 (2021): 1219. http://dx.doi.org/10.3390/plants10061219.

Full text

Abstract:

The present study aimed at the identification and quantitation of phenolic compounds, fatty acids, and further characteristic substances in the seeds of Geum urbanum L. and Geum rivale L. For this purpose, individual components of extracts recovered with MeOH, CH2Cl2, and by cold-pressing, respectively, were characterized by HPLC-DAD/ESI-MSn and GC/MS and compared with reference compounds. For both Geum species, phenolic compounds, such as flavonoids and gallic acid derivatives, and triterpenes, such as saponins and their aglycones, were detected. Surprisingly, both Geum species revealed the p

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!