Acceder

Bibliografías temáticas / Glycosides Analysis / Artículos de revistas

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Glycosides Analysis.

Artículos de revistas sobre el tema "Glycosides Analysis"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 31 de enero de 2023

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores artículos de revistas para su investigación sobre el tema "Glycosides Analysis".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore artículos de revistas sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Zheng, Yunfeng, Weiping Duan, Jie Sun, Chenguang Zhao, Qizhen Cheng, Cunyu Li, and Guoping Peng. "Structural Identification and Conversion Analysis of Malonyl Isoflavonoid Glycosides in Astragali Radix by HPLC Coupled with ESI-Q TOF/MS." Molecules 24, no. 21 (October 31, 2019): 3929. http://dx.doi.org/10.3390/molecules24213929.

Texto completo

Resumen

In this study, four malonyl isoflavonoid glycosides (MIGs), a type of isoflavonoid with poor structural stability, were efficiently isolated and purified from Astragali Radix by a medium pressure ODS C18 column chromatography. The structures of the four compounds were determined on the basis of NMR and literature analysis. Their major diagnostic fragment ions and fragmentation pathways were proposed in ESI/Q-TOF/MS positive mode. Using a target precursor ions scan, a total of 26 isoflavonoid compounds, including eleven malonyl isoflavonoid glycosides coupled with eight related isoflavonoid gly

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Caffrey, Andrew, and Susan E. Ebeler. "The Occurrence of Glycosylated Aroma Precursors in Vitis vinifera Fruit and Humulus lupulus Hop Cones and Their Roles in Wine and Beer Volatile Aroma Production." Foods 10, no. 5 (April 24, 2021): 935. http://dx.doi.org/10.3390/foods10050935.

Texto completo

Resumen

Volatile aroma compounds found in grapes and hops may be present as both free volatiles and bound glycosides. Glycosides found in the raw materials are transferred to their respective fermented beverages during production where the odorless compounds may act as a reservoir of free volatiles that may be perceived by the consumer if hydrolyzed. A review of the literature on grape and wine glycosides and the emerging literature for glycosides in hops is presented in order to demonstrate the depth of history in grape glycoside research and may help direct new research on hop glycosides. Focus is b

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Peng, Wenwen, Xiaoxiang Fu, Yuyan Li, Zhonghua Xiong, Xugen Shi, Fang Zhang, Guanghua Huo, and Baotong Li. "Phytochemical Study of Stem and Leaf of Clausena lansium." Molecules 24, no. 17 (August 28, 2019): 3124. http://dx.doi.org/10.3390/molecules24173124.

Texto completo

Resumen

Clausena lansium Lour. Skeels (Rutaceae) is widely distributed in South China and has historically been used as a traditional medicine in local healthcare systems. Although the characteristic components (carbazole alkaloids and coumarins) of C. lansium have been found to possess a wide variety of biological activities, little attention has been paid toward the other components of this plant. In the current study, phytochemical analysis of isolates from a water-soluble stem and leaf extract of C. lansium led to the identification of 12 compounds, including five aromatic glycosides, four sesquit

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Miyagawa, Yasuyuki, Takahito Mizukami, Hiroshi Kamitakahara та Toshiyuki Takano. "Synthesis and fundamental HSQC NMR data of monolignol β-glycosides, dihydromonolignol β-glycosides and p-hydroxybenzaldehyde derivative β-glycosides for the analysis of phenyl glycoside type lignin-carbohydrate complexes (LCCs)". Holzforschung 68, № 7 (1 жовтня 2014): 747–60. http://dx.doi.org/10.1515/hf-2013-0164.

Texto completo

Resumen

Abstract Twelve monolignol (coniferyl alcohol, sinapyl alcohol and p-coumaryl alcohol) β-glycosides (β-glucosides, β-galactosides, β-xylosides and β-mannosides) were synthesised to obtain fundamental NMR data for the analysis of phenyl glycoside type lignin-carbohydrate complexes (LCCs). That is, the 1,2-trans glycosides (the β-glucosides, β-galactosides and β-xylosides) and the 1,2-cis glycosides (the β-mannosides) were synthesized by means of Koenig-Knorr glycosylation and β-selective Mitsunobu glycosylation strategies, respectively. In addition, dihydromonolignol and p-hydroxybenzaldehyde d

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Yokosuka, Akihito, and Yoshihiro Mimaki. "Steroidal Glycosides from the Underground Parts of Agapanthus inapertus and Their Cytotoxic Activity." Natural Product Communications 2, no. 1 (January 2007): 1934578X0700200. http://dx.doi.org/10.1177/1934578x0700200107.

Texto completo

Resumen

Phytochemical investigation of the underground parts of Agapanthus inapertus (Liliaceae) has resulted in the isolation of three new spirostanol glycosides (1, 3, and 4), along with a known spirostanol glycoside (2) and two known spirostanols (5 and 6). The structures of the new glycosides were determined by spectroscopic analysis and the results of hydrolytic cleavage. The isolated compounds were evaluated for their cytotoxic activity against HL-60 human promyelocytic leukemia cells.

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Agzamova, Manzura Adkhamovna, Ravshanjon Muratjanovich Khalilov та Abdulaziz Adilkhanovich Janibekov. "СHROMATOGRAPHIC ANALYSIS OF СYCLOSIVERSIOSIDE F". chemistry of plant raw material, № 2 (10 червня 2021): 267–74. http://dx.doi.org/10.14258/jcprm.2021028314.

Texto completo

Resumen

The plants Astragalus pterocephalus growing in Uzbekistan are a source of triterpene glycosides. The main triterpene glycoside, in terms of content, is a cycloartan glycoside – cyclosiversioside F. To obtain an individual biologically active compound cyclosiversioside F with 95% purity, a proposed method involves extraction with methanol, concentration and dilution with an equal volume of water, then followed by a sequential extraction from the aqueous extract with chloroform, ethyl acetate and butanol. Then a chromatographic separation of the purified amount of extractives on a column w

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Deng, Xuming, Hu Shang, Jiajia Chen, Jun Wu, Tao Wang, Yiqing Wang, Chensong Zhu, and Weijiang Sun. "Metabolomics Combined with Proteomics Provide a Novel Interpretation of the Changes in Flavonoid Glycosides during White Tea Processing." Foods 11, no. 9 (April 24, 2022): 1226. http://dx.doi.org/10.3390/foods11091226.

Texto completo

Resumen

In this study, nonvolatile metabolomics and proteomics were applied to investigate the change mechanism of flavonoid glycoside compounds during withering processing of white tea. With the extension of withering time, the content of the main flavonoid glycoside compounds significantly decreased, and then the flavonoid aglycones and water-soluble saccharides contents increased. However, the change trends of these compounds were inconsistent with the expression pattern of related biosynthesis pathway proteins, indicating that the degradation of flavonoid glycosides might exist in the withering pr

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Deng, Xuming, Hu Shang, Jiajia Chen, Jun Wu, Tao Wang, Yiqing Wang, Chensong Zhu, and Weijiang Sun. "Metabolomics Combined with Proteomics Provide a Novel Interpretation of the Changes in Flavonoid Glycosides during White Tea Processing." Foods 11, no. 9 (April 24, 2022): 1226. http://dx.doi.org/10.3390/foods11091226.

Texto completo

Resumen

In this study, nonvolatile metabolomics and proteomics were applied to investigate the change mechanism of flavonoid glycoside compounds during withering processing of white tea. With the extension of withering time, the content of the main flavonoid glycoside compounds significantly decreased, and then the flavonoid aglycones and water-soluble saccharides contents increased. However, the change trends of these compounds were inconsistent with the expression pattern of related biosynthesis pathway proteins, indicating that the degradation of flavonoid glycosides might exist in the withering pr

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Perrone, Angela, Milena Masullo, Alberto Plaza, Arafa Hamed, and Sonia Piacente. "Flavone and Flavonol Glycosides from Astragalus eremophilus and Astragalus Vogelii." Natural Product Communications 4, no. 1 (January 2009): 1934578X0900400. http://dx.doi.org/10.1177/1934578x0900400117.

Texto completo

Resumen

Two new rhamnocitrin glycosides (1 and 2) were isolated from the aerial parts of Astragalus vogelii, along with one known rhamnocitrin glycoside (3). Two known flavonol glycosides (4 and 5) and four known flavone derivatives (6-9) were isolated from the aerial parts of Astragalus eremophilus. Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and TOCSY) and 2D-NMR (DQF-COSY, HSQC, HMBC) experiments, as well as ESIMS analysis.

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Kırmızıbekmez, Hasan, Carla Bassarello, Sonia Piacente, Galip Akaydın, and İhsan Çalış. "Flavonoid, Phenylethanoid and Iridoid Glycosides from Globularia aphyllanthes." Zeitschrift für Naturforschung B 64, no. 2 (February 1, 2009): 252–56. http://dx.doi.org/10.1515/znb-2009-0217.

Texto completo

Resumen

A new flavone glycoside, 6-hydroxyluteolin 7-O-[6m-benzoyl-β -D-glucopyranosyl-(1 → 2)]-β - D-glucopyranoside (aphyllanthoside, 1) was isolated from the MeOH extract of the aerial parts of Globularia aphyllanthes. Besides this new compound, two flavonoid glycosides (6-hydroxyluteolin 7-O-[6m-(E)-caffeoyl-β -D-glucopyranosyl-(1 → 2)]-β -D-glucopyranoside and isoquercitrin), three phenylethanoid glycosides (verbascoside, rossicaside A, and trichosanthoside A), and 11 iridoid glycosides (aucubin, catalpol, 10-O-benzoylcatalpol, globularin, asperuloside, besperuloside, asperulosidic acid, daphyllo

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Kim, Jin-Man, Jong-Ho Koh, and Jung-Min Park. "Validation of an HPLC Method for Pretreatment of Steviol Glycosides in Fermented Milk." Foods 10, no. 10 (October 14, 2021): 2445. http://dx.doi.org/10.3390/foods10102445.

Texto completo

Resumen

Steviol glycosides are used in food and beverages worldwide as natural sweeteners, serving as a low-calorie sugar substitute. The acceptable daily intake of steviol is 0–4 mg/kg body weight. The rising demand for dairy products has led to a corresponding increase in the use of steviol glycosides in such products. Therefore, it is important to analyze the levels of steviol glycosides in dairy products. Dairy products have high fat contents and unique emulsion characteristics, conferred by a mixture of fat globules, casein micelles, whey proteins, and numerous other small molecules. These charac

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Wei, Guanhua, Honghong Da, Kaixue Zhang, Junmin Zhang, Jianguo Fang, and Zhigang Yang. "Glycoside Compounds From Glycyrrhiza uralensis and Their Neuroprotective Activities." Natural Product Communications 16, no. 2 (February 2021): 1934578X2199298. http://dx.doi.org/10.1177/1934578x21992988.

Texto completo

Resumen

This paper concerns the study of the roots and rhizomes of Glycyrrhiza uralensis where one new alkaloid glycoside, 3,4-dihydroxyquinoline 4- O-β-d-glucopyranoside, along with 13 known compounds (12 phenolic glycosides and one triterpene glycoside) were isolated and identified. The structure of the new compound and the known ones were identified on the basis of nuclear magnetic resonance (NMR) and mass spectrometric (MS) analysis. All the glycosides were tested for their anti-neuroinflammatory activities by inhibiting nitric oxide (NO) release in lipopolysaccharide (LPS)-induced murine microgli

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Whaley, Andrey Kennet, Anastasiya Olegovna Ponkratova, Anastasiya Andreyevna Orlova, Evgeni Borisovich Serebryakov, Stanislav Ivanovich Selivanov, Sergey Vladimirovich Krivoshchekov, Mikhail Valer'yevich Belousov, Peter Proksch, and Владимир Геннадьевич Luzhanin. "ANALYSIS OF FLAVONES C-GLYCOSIDES AND AND STEPWISE HYDROLYSIS OF THEIR ACETATES IN THE LEAVES OF RUBUS CHAMAEMORUS L." chemistry of plant raw material, no. 2 (June 10, 2021): 257–65. http://dx.doi.org/10.14258/jcprm.2021029185.

Texto completo

Resumen

The C-glycoside embinin and its mono- and diacetate derivatives have immunotropic and cardiotonic activity, which makes the search for plants that contain them interesting. Embinin and its acetate derivatives were previously isolated only from some plants of the genus Iris, the habitat and growing conditions of which are very different from those of the genus Rubus. As a result of the study, the structure of seven C-glycosides, embinin derivatives, isolated from the leaves of Rubus chamaemorus L. (Rosaceae) was established. Using HR-ESI-MS, HPLC-MS, as well as one- and two-dimensional NMR spec

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Morris, Sandra A., Peter T. Northcote, and Raymond J. Andersen. "Triterpenoid glycosides from the Northeastern Pacific marine sponge Xestospongia vanilla." Canadian Journal of Chemistry 69, no. 9 (September 1, 1991): 1352–64. http://dx.doi.org/10.1139/v91-201.

Texto completo

Resumen

Isoxestovanin A (6), xestovanin B (7), xestovanin C (8), dehydroxestovanin A (9), epidehydroxestovanin A (10), dehydroxestovanin C (11), and secodehydroxestovanin A (12), seven new triterpenoid glycosides, have been isolated from the Northeastern Pacific sponge Xestospongia vanilla. The structures of the metabolites were determined by a combination of spectroscopic analysis and chemical degradation. The aglycone of 6 has the new isoxestovanane triterpenoid carbon skeleton. Compounds 7, 8, and 11 are the first X. vanilla triterpenoid glycosides known to contain three monosaccharide subunits. Ke

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Royik, M., I. Kuznetsova, V. Holodniak, and V. Mazayeva. "Determining the quality of diterpene glycosides, obtained from stevia leaves." Agricultural Science and Practice 3, no. 2 (July 15, 2016): 19–25. http://dx.doi.org/10.15407/agrisp3.02.019.

Texto completo

Resumen

Aim. To determine the quality of diterpene glycoside powders, produced in Ukraine using the stevia leaves of plants of domestic and foreign origin. Methods. Differential scanning calorimetry and thermographic analy- sis. Results. It was demonstrated that the increase in the production of powders of diterpene glycosides in the world results in stepping up the requirements to the selection material of stevia and the quality of powders, obtained from its leaves as a fi nal product. The quality of diterpene glycoside powders, produced in Ukraine us- ing the stevia leaves of plants of domestic and

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Watanabe, Kazuki, Yoshihiro Mimaki, Haruhiko Fukaya, and Yukiko Matsuo. "Cycloartane and Oleanane Glycosides from the Tubers of Eranthis cilicica." Molecules 24, no. 1 (December 25, 2018): 69. http://dx.doi.org/10.3390/molecules24010069.

Texto completo

Resumen

Phytochemical analysis of the tubers of Eranthis cilicica was performed as part of our continuous study on the plants of the family Ranunculaceae, which resulted in the isolation of eleven new cycloartane glycosides (1–11) and one new oleanane glycoside (13), together with one known oleanane glycoside (12). The structures of the new compounds were determined by extensive spectroscopic analysis, including two-dimensional (2D) NMR, and enzymatic hydrolysis followed by either X-ray crystallographic or chromatographic analysis. The aglycone (1a) of 2 and its C-23 epimer (8a), and the oleanane glyc

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Jin, Jing, Yi-Qing Lv, Wei-Zhong He, Da Li, Ying Ye, Zai-Fa Shu, Jing-Na Shao, et al. "Screening the Key Region of Sunlight Regulating the Flavonoid Profiles of Young Shoots in Tea Plants (Camellia sinensis L.) Based on a Field Experiment." Molecules 26, no. 23 (November 26, 2021): 7158. http://dx.doi.org/10.3390/molecules26237158.

Texto completo

Resumen

Both UV and blue light have been reported to regulate the biosynthesis of flavonoids in tea plants; however, the respective contributions of the corresponding regions of sunlight are unclear. Additionally, different tea cultivars may respond differently to altered light conditions. We investigated the responses of different cultivars (‘Longjing 43’, ‘Zhongming 192’, ‘Wanghai 1’, ‘Jingning 1’ and ‘Zhonghuang 2’) to the shade treatments (black and colored nets) regarding the biosynthesis of flavonoids. For all cultivars, flavonol glycosides showed higher sensitivity to light conditions compared

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Hong, Yan, Zhihong Gui, Xiaoping Cai, and Lejian lan. "Clinical efficacy and safety of tripterygium glycosides in treatment of stage IV diabetic nephropathy: A meta-analysis." Open Medicine 11, no. 1 (January 1, 2016): 611–17. http://dx.doi.org/10.1515/med-2016-0099.

Texto completo

Resumen

AbstractThe aim of this meta-analysis was to evaluate the clinical efficacy and safety of tripterygium glycosides in treatment of stage IV diabetic nephropathy. Methods Through searching the PubMed and CNKI databases, the open published clinically controlled trials related to efficacy and safety of tripterygium glycosides in the treatment of stage IV diabetic nephropathy were collected. The pooled total efficacy, 24h urinary protein, serum creatinine and tripterygium glycosides related toxicity were calculated using Stata 11.0 software. Results Fourteen publications including 992 subjects (512

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Brandle, Jim. "Genetic control of rebaudioside A and C concentration in leaves of the sweet herb, Stevia rebaudiana." Canadian Journal of Plant Science 79, no. 1 (January 1, 1999): 85–91. http://dx.doi.org/10.4141/p98-048.

Texto completo

Resumen

Stevia rebaudiana Bertoni produces steviol glycoside sweeteners in its leaves that are up to 240 times sweeter than sugar. Understanding the genetic basis of glycoside proportions will aid in their manipulation through plant breeding. The experiments conducted in this study were focused on the genetic control of the proportions of two of those glycosides, rebaudioside A and rebaudioside C. The study was conducted using F2 population from crosses between two sets of parents with divergent glycoside profiles. Segregation in the first set of F2s showed that the presence/absence of rebaudioside A

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Bejarano, Natividad, Leticia Lafuente, Juliana Esteche, Cintia C. Santiago, Agustín H. Rojas, and Agustín Ponzinibbio. "Synthesis and Structure of Novel Potentially Bioactive Amphiphilic -O-(N)-Glycosides." Chemistry Proceedings 3, no. 1 (November 14, 2020): 100. http://dx.doi.org/10.3390/ecsoc-24-08286.

Texto completo

Resumen

Herein we present the synthesis and structural analysis of novel -O-(N)-glycosides. The biphasic reaction of NHS and acetobromo-α-d-glucose or d-galactose gives the β anomer glycoside in a straightforward manner. Further hydrazinolysis and condensation with decanal afforded the desired products. Their complete structures, including the anomeric and E/Z double bond configurations, were determined by spectroscopic analysis.

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Burda, Nadiia, Iryna Zhuravel, Moeen F. Dababneh, Andrii Kotov, Elina Kotova, and Andrii Popyk. "Identification and quantitative analysis of furostanol glycosides in caltrop." Pharmacia 67, no. 4 (October 2, 2020): 187–91. http://dx.doi.org/10.3897/pharmacia.67.e37433.

Texto completo

Resumen

This study describes the identification and quantitative determination of furostanol glycosides in caltrop herb harvested in the fructification period. Furostanol glycosides were identified by thin-layer chromatography (TLC) and quantified by UV-vis spectrophotometry. The furostanol glycosides were visualized on the TLC plate as pink spots after treatment with dimethylamine benzaldehyde solution. UV-vis spectrophotometry quantified these substances to the amount of at least 0.4 %. The data on the identification and quantification of furostanol glycosides obtained in the course of this research

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

de GRAAF, Michelle, Irene C. van VEEN, Ida H. van der MEULEN-MUILEMAN, Winald R. GERRITSEN, Herbert M. PINEDO та Hidde J. HAISMA. "Cloning and characterization of human liver cytosolic β-glycosidase". Biochemical Journal 356, № 3 (8 червня 2001): 907–10. http://dx.doi.org/10.1042/bj3560907.

Texto completo

Resumen

Cytosolic β-glucosidase (EC 3.2.1.21) from mammalian liver is a member of the family 1 glycoside hydrolases and is known for its ability to hydrolyse a range of β-d-glycosides, including β-d-glucoside and β-d-galactoside. We therefore refer to this enzyme as cytosolic β-glycosidase. We cloned the cDNA encoding the human cytosolic β-glycosidase by performing PCR on cDNA prepared from total human liver RNA. Specific primers were based on human expressed sequence tags found in the expressed sequence tag database. The cloned cDNA contained 1407nt with an open reading frame encoding 469 amino acid

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Zhang, Feng-Mei, Min-Jie Zheng, Yan-Qun Xu, Chun-Ping Xu, Zhi-Hua Liu, Zhen-Jie Li, and Zhi-Gang Tai. "Temperature-Responsive Glycosides for Controlled Release of Decanol Towards Sustainable Disinfect Effect." Journal of Biobased Materials and Bioenergy 16, no. 4 (August 1, 2022): 603–10. http://dx.doi.org/10.1166/jbmb.2022.2215.

Texto completo

Resumen

Controlling the release of decanol with temperature is a reliable way to improve the utilization of decanol. In this paper, a temperature-controlling release decyl glycoside was synthesized using method of Koenigs-Knorr acetyl glycoside synthesis. Thereafter, the resultant decyl glycoside was characterized in terms of thermogravimetric analysis, differential scanning calorimetry and pyrolysis analysis, respectively. Moreover, both the temperature-responsive responsive in vitro release and disinfection activities were also assessed. Finally, the results showed that the yield of decyl glycoside

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Segurel, Marie A., Raymond L. Baumes, Christine Riou, and Alain Razungles. "Role of Glycosidic Aroma Precursors on the odorant profiles of Grenache noir and Syrah Wines from the Rhone valley. Part 1: sensory study." OENO One 43, no. 4 (December 31, 2009): 199. http://dx.doi.org/10.20870/oeno-one.2009.43.4.793.

Texto completo

Resumen

<p style="text-align: justify;"><strong>Aims</strong>: The aim of this study was to demonstrate the impact of the volatile compounds, arising from glycosidic precursors contained in the berries of Vitis vinifera L.cv Syrah and Grenache noir varieties, on wine aromas from these varieties.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The sensory analysis was used to compare Grenache noir and Syrah wines. The role played by the glycosidic precursors on the future odorant profile of the wines from both varieties was demonstrated

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Li, Chunbao, Wenjiao Yuan та Yali Liu. "A Rapid and Diastereoselective Synthesis of 2-Deoxy-2-iodo-α-glycosides and its Mechanism for Diastereoselectivity". Synlett 28, № 15 (24 травня 2017): 1975–78. http://dx.doi.org/10.1055/s-0036-1588440.

Texto completo

Resumen

Reductive deiodination of 2-deoxy-2-iodo-glycoside is an efficient and practical approach for the synthesis of 2-deoxyglycosides, which are moieties of bioactive compounds. However, inseparable diastereoisomers are usually formed in the preparation of 2-deoxy-2-iodo-glycosides via glycosylation of glycals with alcohols using current methods. To overcome this problem, a rapid and diastereoselective transformation of glycals and alcohols into 2-deoxy-2-iodo-α-glycosides enabled by I2/PhI(OAc)2 has been developed. 14 glycals, derived from 13 monosaccharides and one disaccharide, diastereoselectiv

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Ma, Zhong-Lian, Zhi-Pu Yu, Yao-Yao Zheng, Na Han, Ya-Hui Zhang, Shu-Yue Song, Jun-Qiu Mao, Jiao-Jiao Li, Guang-Shan Yao, and Chang-Yun Wang. "Bioactive Alpha-Pyrone and Phenolic Glucosides from the Marine-Derived Metarhizium sp. P2100." Journal of Fungi 9, no. 1 (December 23, 2022): 28. http://dx.doi.org/10.3390/jof9010028.

Texto completo

Resumen

Glycoside compounds have attracted great interest due to their remarkable and multifarious bioactivities. In this study, four hitherto unknown 4-methoxy-β-D-glucosyl derivatives were obtained and identified from the marine-derived fungus Metarhizium sp. P2100, including three alpha-pyrone glycosides (1–3) and one phenolic glycoside (4). Their planar structures were elucidated by comprehensive spectroscopic analysis, including 1D/2D NMR and HRESIMS. The absolute configurations of 1–3 were determined by a single-crystal X-ray crystallographic experiment, a comparison of the experimental, and a c

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Takahashi, Naoki, Tomoki Iguchi, Minpei Kuroda, Masaki Mishima, and Yoshihiro Mimaki. "Novel Oleanane-Type Triterpene Glycosides from the Saponaria officinalis L. Seeds and Apoptosis-Inducing Activity via Mitochondria." International Journal of Molecular Sciences 23, no. 4 (February 12, 2022): 2047. http://dx.doi.org/10.3390/ijms23042047.

Texto completo

Resumen

Saponaria officinalis L., commonly known as “Soapwort”, is a rich source of triterpene glycosides; however, the chemical constituents of S. officinalis seeds have not been fully identified. In this study, we conducted a systematic phytochemical investigation of the seeds of S. officinalis and obtained 17 oleanane-type triterpene glycosides (1–17), including seven new glycosides (1–7). The structures of 1–7 were determined based on a detailed analysis of NMR spectroscopic data and chromatographic and spectroscopic analyses following specific chemical transformation. The cytotoxicities of the is

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Sarma, Sai Koteswar, D. Umamaheswari, B. S. Venkateswaralu, and M. Kumar. "PRELIMINARY PHYTOCHEMICAL ANALYSIS OF ANTIFERTILITY PLANTS." YMER Digital 21, no. 07 (July 29, 2022): 1218–24. http://dx.doi.org/10.37896/ymer21.07/a1.

Texto completo

Resumen

The objective of this study was to investigate the presence of various phytochemicals obtained from ethanol (E), ethyl acetate (ET), methanol (M), and chloroform (C) extracts of the Datura Stramonium and Musa Paradasica. Methods: The freshly collected plant materials were subjected to successive extraction separately using E,ET, M and C with soxhlet apparatus. Using the standard protocols, the leaf extracts obtained were subjected to preliminary phytochemical analysis to detect the presence of carbohydrates, proteins, steroids, flavonoids, tannins, and alkaloids. Results: The phytochemical ana

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Mauri, Pierluigi, Giovanna Catalano, Claudio Gardana, and Piergiorgio Pietta. "Analysis ofStevia glycosides by capillary electrophoresis." Electrophoresis 17, no. 2 (1996): 367–71. http://dx.doi.org/10.1002/elps.1150170213.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Onlom, Churanya, Nitra Nuengchamnong, Watoo Phrompittayarat, Waraporn Putalun, Neti Waranuch, and Kornkanok Ingkaninan. "Quantification of Saponins in Asparagus racemosus by HPLC-Q-TOF-MS/MS." Natural Product Communications 12, no. 1 (January 2017): 1934578X1701200. http://dx.doi.org/10.1177/1934578x1701200103.

Texto completo

Resumen

Asparagus racemosus Willd. or Shatavari (Asparagaceae family) is an important medicinal plant in Ayurvedic medicine as a rejuvenate for women. A method for quantitative analysis of saponin glycosides bioactive constituents in A. racemosus is reported. A high performance liquid chromatography quadrupole time of flight mass spectrometry (HPLC-Q-TOF-MS/MS) method was developed and validated for simultaneous determination of five saponin glycosides, asparacoside, shatavarin IX, shatavarin IV, asparanin A and shatavarin V in A. racemosus extracted with 70% MeOH. The method was validated through int

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Yin, Qiang, Rahima Abdulla, Gulmira Kahar, Haji Akber Aisa, Chunting Li, and Xuelei Xin. "Mass Defect Filtering-Oriented Identification of Resin Glycosides from Root of Convolvulus scammonia Based on Quadrupole-Orbitrap Mass Spectrometer." Molecules 27, no. 11 (June 6, 2022): 3638. http://dx.doi.org/10.3390/molecules27113638.

Texto completo

Resumen

This work aimed to develop and evaluate a post-acquisition data processing strategy, referred to as a mass defect filter (MDF), for rapid target the resin glycosides in root of Convolvulus scammonia by setting mass rang and mass defect range from high-resolution MS data. The full-scan mass data were acquired by high-performance liquid chromatography coupled with Q Exactive Plus hybrid quadrupole-orbitrap mass spectrometer that featured high resolution, mass accuracy, and sensitivity. To screen resin glycosides, three parent filter m/z 871, m/z 853, and m/z 869 combined with diagnostic fragment

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Ren, Chaoxiang, Chao Chen, Shuai Dong, Rui Wang, Bin Xian, Tianlei Liu, Ziqing Xi, Jin Pei, and Jiang Chen. "Integrated metabolomics and transcriptome analysis on flavonoid biosynthesis in flowers of safflower (Carthamus tinctorius L.) during colour-transition." PeerJ 10 (June 22, 2022): e13591. http://dx.doi.org/10.7717/peerj.13591.

Texto completo

Resumen

Background Safflower (Carthamus tinctorius L.), well known for its flower, is widely used as a dye and traditional Chinese medicine. Flavonoids, especially flavonoid glycosides, are the main pigments and active components. However, their biosynthesis is largely unknown. Interestingly, the colour of flowers in safflower changed from yellow to red during flower development, while much of the gene and chemical bases during colour transition are unclear. Methods In this research, widely targeted metabolomics and transcriptomics were used to elucidate the changes in flavonoid biosynthesis from the

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Ouyang, Dan, Lan-Chun Wang, Ting Tang, and Hong Feng. "Genomic-Wide Identification and Characterization of the Uridine Diphosphate Glycosyltransferase Family in Eucommia ulmoides Oliver." Plants 10, no. 9 (September 17, 2021): 1934. http://dx.doi.org/10.3390/plants10091934.

Texto completo

Resumen

Eucommia ulmoides Oliver is a woody plant with great economic and medicinal value. Its dried bark has a long history of use as a traditional medicinal material in East Asia, which led to many glycosides, such as aucubin, geniposide, hyperoside, astragalin, and pinoresinol diglucoside, being recognized as pharmacologically active ingredients. Uridine diphosphate glycosyltransferases (UGTs) catalyze a glycosyl-transferring reaction from the donor molecule uridine-5′-diphosphate-glucose (UDPG) to the substrate, which plays an important role in many biological processes, such as plant growth and d

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Dong, Yongzhe, Jingya Ruan, Zhijuan Ding, Wei Zhao, Mimi Hao, Ying Zhang, Hongyu Jiang, Yi Zhang, and Tao Wang. "Phytochemistry and Comprehensive Chemical Profiling Study of Flavonoids and Phenolic Acids in the Aerial Parts of Allium Mongolicum Regel and Their Intestinal Motility Evaluation." Molecules 25, no. 3 (January 29, 2020): 577. http://dx.doi.org/10.3390/molecules25030577.

Texto completo

Resumen

To clarify whether flavonoids and phenols in Allium mongolicum Regel have the effect of improving gastrointestinal function and analyze its quality, this study was designed to isolate and identify them from the aerial parts of A. mongolicum by using various chromatographic and spectrophotometric methods, a bioassay on motility of mouse isolated intestine tissue, as well as qualitative analysis using liquid chromatography/mass spectrometry (LC-MS) analysis. As a result, 31 flavonoids and phenolic acids were obtained and identified, including six new flavonoid glycosides, mongoflavonosides A1 (1

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Marchenko, Alexandra, Pavel Kintia, Natalia Mashcenco, Carla Bassarello, Sonia Piacente, and Cosimo Pizza. "Phenylethanoid and Iridoid Glycosides from Veronica Chamaedrys L." Chemistry Journal of Moldova 3, no. 2 (December 2008): 101–4. http://dx.doi.org/10.19261/cjm.2008.03(2).08.

Texto completo

Resumen

Three phenylethanoid glycosides (1, 2, 3) and one iridoid glycoside (4) were isolated from aerial parts of Veronica chamaedrys L. (Scrophulariaceae) for the first time. On the basis of spectral analysis, the structures of these compounds were determined to be acteoside (3,4-dihydroxy-β-phenylethoxy-O-α-L-rhamnopyranosyl-(1→3)-4-O-caffeoyl-β-D-glucopyranoside) (1), ehrenoside (3,4-dihydroxy-β-phenylethoxy-O-α-L-arabinopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→3)-4-O-caffeoyl-β-D-glucopyranoside) (2), chamaedroside (3,4-dihydroxy-β-phenylethoxy-O-α-L-rhamnopyranosyl-(1→3)-4-O-caffeoyl-α-L-arabinopy

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Park, Kyoung Jin, Won Se Suh, Da Hye Yoon, Chung Sub Kim, Sun Yeou Kim, and Kang Ro Lee. "Phenolic constituents from twigs of Aleurites fordii and their biological activities." Beilstein Journal of Organic Chemistry 17 (September 7, 2021): 2329–39. http://dx.doi.org/10.3762/bjoc.17.151.

Texto completo

Resumen

Three new neolignan glycosides (1–3), a new phenolic glycoside (15), and a new cyanoglycoside (16) were isolated and characterized from the twigs of Aleurites fordii together with 14 known analogues (4–14 and 17–19). The structural elucidation of the new compounds was performed through the analysis of their NMR, HRMS, and ECD spectra and by chemical methods. All isolated compounds were tested for their antineuroinflammatory and neuroprotective activities.

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Parris, Cheryl A., Clinton C. Shock, and Michael Qian. "Soil Water Tension Irrigation Criteria Affects Stevia rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition." HortScience 52, no. 1 (January 2017): 154–61. http://dx.doi.org/10.21273/hortsci11352-16.

Texto completo

Resumen

Stevia (Stevia rebaudiana Bertoni) is of interest for the production of steviol glycosides due to their noncaloric sweetening properties. Commercial stevia leaf production to date has focused on rebaudioside A and stevioside. Relatively little is known about the cultural practices necessary for the efficient production of stevia leaf and steviol glycosides. Irrigation management is an important agronomic technique that growers can use to obtain high yield while also pursuing water use efficiency (WUE). This trial investigated the effect that irrigation onset criteria measured as soil water ten

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Karapandzova, Marija, Gjose Stefkov, Ivana Cvetkovikj, Jasmina Petreska Stanoeva, Marina Stefova, and Svetlana Kulevanova. "Flavonoids and Other Phenolic Compounds in Needles of Pinus peuce and Other Pine Species from the Macedonian Flora." Natural Product Communications 10, no. 6 (June 2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000647.

Texto completo

Resumen

Flavonoids and other phenolic compounds in young needles of four pine species, Pinus peuce, P. nigra, P. mugo and P. sylvestris from the Macedonian flora were investigated. The amount of total phenols and total flavonoids were determined using Folin-Ciocalteau and aluminum chloride assay, respectively. The obtained results revealed that the total phenolic content (TPC) and total flavonoids content (TFC) varied among different pine species ranging from 9.8 to 14.0 mg GAE/g and from 3.3 to 7.2 mg CE/g of dried plant material, respectively. Qualitative analysis of flavonoids and other phenolic co

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Liang, Qingrong, He Qian, and Weirong Yao. "Identification of Flavonoids and Their Glycosides by High-Performance Liquid Chromatography with Electrospray Ionization Mass Spectrometry and with Diode Array Ultraviolet Detection." European Journal of Mass Spectrometry 11, no. 1 (February 2005): 93–101. http://dx.doi.org/10.1255/ejms.710.

Texto completo

Resumen

Identification of flavonoids and flavonoid glycosides was carried out on Psidium guajava Linn leaves by means of high-performance liquid chromatography ultraviolet (HPLC-UV) analysis and HPLC mass spectrometry. By using HPLC-UV, two known phenolics (gallic acid and quercetin) and five newly reported ones (procatechuic acid, chlorogenic acid, caffeic acid, kaempferol and ferulic acid) were identified in alcohol guava leaf extract. Structural information about the compounds was obtained from the retention times, the UV spectra and mass spectra without the need to isolate the individual compounds

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Murkovic, M., U. Adam, and W. Pfannhauser. "Analysis of anthocyane glycosides in human serum." Fresenius' Journal of Analytical Chemistry 366, no. 4 (February 25, 2000): 379–81. http://dx.doi.org/10.1007/s002160050077.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Napoli, R. M., B. S. Middleditch, N. M. Cintron, and Y. M. Chen. "Isolation and quantitative analysis of hydroxylysine glycosides." Chromatographia 28, no. 9-10 (November 1989): 497–501. http://dx.doi.org/10.1007/bf02261068.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Lunga, Irina, Pavel Chintea, Stepan Shvets, Anna Favelb, and Cosimo Pizza. "Steroidal Glycosides from the Seeds of Hyoscyamus Niger L. and their Antifungal Activity." Chemistry Journal of Moldova 2, no. 1 (December 2007): 108–13. http://dx.doi.org/10.19261/cjm.2007.02(1).05.

Texto completo

Resumen

Phytochemical analysis of the seeds of Hyocyamus niger L. (Solonaceae) resulted in the isolation of six steroidal glycosides, two furostanol (1, 2) and four spirostanol saponins (3, 4, 5, 6), which were found in this plant for the first time. The structures of these compounds were determined by detailed analysis of their spectral data, including two-dimensional NMR spectroscopy and MS spectroscopy. The antifungal activity of a crude steroidal glycoside extract, fractions of spirostanoles and individual glicosides was investigated in vitro against a panel of human pathogenic fungi, yeasts as we

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Yoneyama, Tatsuro, Kanako Iseki, Masaaki Noji, Hiroshi Imagawa, Toshihiro Hashimoto, Sachiko Kawano, Masaki Baba, et al. "Marylosides A-G, Norcycloartane Glycosides from Leaves of Cymbidium Great Flower ‘Marylaurencin’." Molecules 24, no. 13 (July 9, 2019): 2504. http://dx.doi.org/10.3390/molecules24132504.

Texto completo

Resumen

Seven novel norcycloartane glycosides, maryloside A–G (1–7), were isolated from the leaves of Cymbidium Great Flower ‘Marylaurencin’, along with a known norcycloartane glycoside, cymbidoside (8). These structures were determined on the basis of mainly NMR experiments as well as chemical degradation and X-ray crystallographic analysis. The isolated compounds (1–6 and 8) were evaluated for the inhibitory activity on lipopolysaccharide (LPS) and interferon-γ (IFN-γ)-stimulated nitric oxide (NO) production in RAW 264.7 cells. Consequently, 1 and 3 exhibited moderate activity.

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Cheng, Lee-Chuen, Vikneswaran Murugaiyah, and Kit-Lam Chan. "Developing a Validated HPLC Method for the Phytochemical Analysis of Antihyperuricemic Phenylethanoid Glycosides and Flavonoids in Lippia nodiflora." Natural Product Communications 12, no. 11 (November 2017): 1934578X1701201. http://dx.doi.org/10.1177/1934578x1701201105.

Texto completo

Resumen

The phenylethanoid glycosides and flavonoids of Lippia nodiflora were reported as xanthine oxidase inhibitors that possessed antihyperuricemic effects in chemically-induced hyperuricemic rats. The present study developed a validated high performance liquid chromatography method for the simultaneous phytochemical analysis of five isolated antihyperuricemic constituents in L. nodiflora, comprising two phenylethanoid glycosides, arenarioside (1) and verbascoside (2), and three flavonoids, 6-hydroxyluteolin (3), 6-hydroxyluteolin-7- O-glycoside (4) and nodifloretin (5). These compounds were analys

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Rui, Wen, Hongyuan Chen, Yuzhi Tan, Yanmei Zhong, and Yifan Feng. "Rapid Analysis of the Main Components of the Total Glycosides of Ranunculus japonicus by UPLC/Q-TOF-MS." Natural Product Communications 5, no. 5 (May 2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500521.

Texto completo

Resumen

A rapid method for the analysis of the main components of the total glycosides of Ranunculus japonicus (TGOR) was developed using ultra-performance liquid chromatography with quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS). The separation analysis was performed on a Waters Acquity UPLC system and the accurate mass of molecules and their fragment ions were determined by Q-TOF MS. Twenty compounds, including lactone glycosides, flavonoid glycosides and flavonoid aglycones, were identified and tentatively deduced on the basis of their elemental compositions, MS/MS data and relevant li

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Venter, Pieter, Kholofelo Malemela, Vusi Mbazima, Leseilane J. Mampuru, Christo J. F. Muller, and Sylvia Riedel. "An RP-LC-UV-TWIMS-HRMS and Chemometric Approach to Differentiate between Momordicabalsamina Chemotypes from Three Different Geographical Locations in Limpopo Province of South Africa." Molecules 26, no. 7 (March 27, 2021): 1896. http://dx.doi.org/10.3390/molecules26071896.

Texto completo

Resumen

Momordica balsamina leaf extracts originating from three different geographical locations were analyzed using reversed-phase liquid chromatography (RP-LC) coupled to travelling wave ion mobility (TWIMS) and high-resolution mass spectrometry (HRMS) in conjunction with chemometric analysis to differentiate between potential chemotypes. Furthermore, the cytotoxicity of the three individual chemotypes was evaluated using HT-29 colon cancer cells. A total of 11 molecular species including three flavonol glycosides, five cucurbitane-type triterpenoid aglycones and three glycosidic cucurbitane-type t

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Li, Yuan, Xin-Lin Li, Chang-Jiang-Sheng Lai, Rui-Shan Wang, Li-Ping Kang, Ting Ma, Zhen-Hua Zhao, Wei Gao, and Lu-Qi Huang. "Functional characterization of three flavonoid glycosyltransferases from Andrographis paniculata." Royal Society Open Science 6, no. 6 (June 2019): 190150. http://dx.doi.org/10.1098/rsos.190150.

Texto completo

Resumen

Andrographis paniculata is an important traditional medicinal herb in South and Southeast Asian countries with diverse pharmacological activities that contains various flavonoids and flavonoid glycosides. Glycosylation can transform aglycones into more stable, biologically active and structurally diverse glycosides. Here, we report three glycosyltransferases from the leaves of A. paniculata (ApUFGTs) that presented wide substrate spectra for flavonoid glycosylation and exhibited multi-site glycosylation on the substrate molecules. They acted on the 7-OH position of the A ring and were able to

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Kulkarni, Narendra Anant, and Jayashree Mane. "Phytochemical Analysis of Selected Medicinal plants of India." Plantae Scientia 2, no. 1 (May 15, 2019): 19–23. http://dx.doi.org/10.32439/ps.v2i1.19-23.

Texto completo

Resumen

The present study has revealed the presence of phytochemicals considered as active medicinal chemical constituents. Important medicinal phytochemicals such as terpenoids, flavonoids, phenols, tannins, steroids, glycosides were studied in the collected samples. Plant Aegle marmelos Corr. having all these phytochemicals. Saponin was found only in two plants out of nine plants i.e. Achyranthes aspera Linn. and Semecarpus anacardium Linn. Terpenoids were found in Aegle marmelos Corr., Calotropis gigantea Linn.R.Br., Mimosa pudica Linn. Terpenoids are reported to have anti-inflammatory, antiviral,

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Carretero, Cristina Recuero, Ana M. Díaz Lanza, Lidia Fernández Matellano, Angel Rumbero Sánchezb, and Lucinda Villaescusa Castillo. "Phytochemical Analysis of Phillyrea latifolia L., a New Source of Oleuropeoside." Zeitschrift für Naturforschung C 56, no. 5-6 (June 1, 2001): 353–56. http://dx.doi.org/10.1515/znc-2001-5-606.

Texto completo

Resumen

As a part of our studies on the biologically active substances from Spanish plants, we have undertaken an investigation of the chemical constituents of a typical mediterranean species, Phillyrea latifolia L. (Oleaceae). Two secoiridoid glycosides, three phenylpropanoid glycosides, one lignane and two triterpenic acids were isolated from the leaves of this species and identified. The phytochemical analysis of the aerial parts of P. latifolia revealed that it is a rich source of oleuropeoside.

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Borges, Endler Marcel, Dietrich A. Volmer, and Marcos N. Eberlin. "Comprehensive analysis of Ginkgo tablets by easy ambient sonic spray ionization mass spectrometry." Canadian Journal of Chemistry 91, no. 8 (August 2013): 671–78. http://dx.doi.org/10.1139/cjc-2013-0037.

Texto completo

Resumen

We report here that easy ambient sonic spray ionization − mass spectrometry (EASI−MS) allowed direct, rapid, and comprehensive analysis of active components (e.g., terpenetrilactones and intact flavonol glycosides) in Ginkgo tablets. Unlike conventional methods that hydrolyze flavonol glycosides to flavonoids prior to analysis, EASI−MS detects intact flavonol glycosides directly from the tablets enabling differentiation of these natural glycosides from the synthetic flavonoids. Adulteration of Ginkgo tablets is therefore readily recognized in less than 10 s measurement time. Sample preparation

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!