PubAg

Main content area

You searched for: Subject "plant extracts" Remove constraint Subject: "plant extracts"
Start Over

Search

14,009  Search Results

« Previous | 1 - 20 of 14,009 |
Number of results to display per page

Search Results

1. Correction to: The antiangiogenic activities of ethanolic crude extracts of four Salvia species

Author:
Zihlif, Malek; Afifi, Fatma; Abu-Dahab, Rana; Majid, Amin Malik Shah Abdul; Somrain, Hamza; Saleh, Mohanad M.; Nassar, Zeyad D.; Naffa, Randa
Source:
BMC complementary and alternative medicine 2018 v.18 no.1 pp. 64
ISSN:
1472-6882
Subject:
plant extracts,   etc   ; Salvia; medicinal properties;     Show all 3 Subjects
Abstract:
... CORRECTION: After the publication [1] it came to the attention of the authors that one of the co-authors was incorrectly included as Hamza Somrain. The correct spelling is as follows: Hamzeh Sumrein. ...
DOI:
10.1186/s12906-018-2126-8
PubMed:
29452588
PubMed Central:
PMC5815194

2. Correction to: Comparison of glycyrrhizin content in 25 major kinds of Kampo extracts containing Glycyrrhizae Radix used clinically in Japan

Author:
Nose, Mitsuhiko; Tada, Momoka; Kojima, Rika; Nagata, Kumiko; Hisaka, Shinsuke; Masada, Sayaka; Homma, Masato; Hakamatsuka, Takashi
Source:
Natural medicines 2018 v.72 no.2 pp. 593
ISSN:
1340-3443
Subject:
plant extracts,   etc   ; Glycyrrhiza; glycyrrhizin; Japan;     Show all 4 Subjects
Abstract:
... The article Comparison of glycyrrhizin content in 25 major kinds of Kampo extracts containing Glycyrrhizae Radix used clinically in Japan, written by Mitsuhiko Nose, Momoka Tada, Rika Kojima, Kumiko Nagata, Shinsuke Hisaka, Sayaka Masada, Masato Homma and Takashi Hakamatsuka, was originally published Online First without open access. After publication in volume 71, issue 4, page 711–722 the author ...
DOI:
10.1007/s11418-018-1195-9
PubMed:
29497900
PubMed Central:
PMC5860082

3. A new colorimetric method for CUPRAC assay with using of TLC plate

Author:
Akar, Zeynep; Burnaz, Nesibe Arslan
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019 v.112 pp. 108212
ISSN:
0023-6438
Subject:
plant extracts,   etc   ; antioxidant activity; antioxidants; color; colorimetry; computers; scanners; spectrophotometers;     Show all 8 Subjects
Abstract:
... Cupric reducing antioxidant capacity (CUPRAC) method is one of the most widely used antioxidant methods. However, its need for a spectrophotometer, as in many other methods, is an important disadvantage. Cupric reducing antioxidant capacity was determined based on color analysis with Image J program in computer with the new method developed in this study and thus, use of spectrophotometer was elim ...
DOI:
10.1016/j.lwt.2019.05.110

4. Suspect screening of glycoalkaloids in plant extracts using neutral loss – High resolution mass spectrometry

Author:
Larcher, R.; Nardin, T.
Source:
Journal of chromatography 2019 v.1596 pp. 59-68
ISSN:
0021-9673
Subject:
plant extracts,   etc   ; glycoalkaloids; liquid chromatography; piperidines; screening; tandem mass spectrometry;     Show all 6 Subjects
Abstract:
... Alkaloids represent a very large and chemically inhomogeneous group of nitrogen compounds isolated from different natural sources. They have long been studied due to their specific toxicological characteristics, as some of them are suspected of having very dangerous properties, but there has still been little investigation of the existence of possible glycoside precursors in plant products. An ana ...
DOI:
10.1016/j.chroma.2019.02.059

5. Potentiometric method of plant microsuspensions antioxidant activity determination

Author:
Brainina, Khiena; Stozhko, Natalia; Bukharinova, Maria; Khamzina, Ekaterina; Vidrevich, Marina
Source:
Food chemistry 2019 v.278 pp. 653-658
ISSN:
0308-8146
Subject:
plant extracts,   etc   ; antioxidant activity; antioxidants; green tea; liquids;     Show all 5 Subjects
Abstract:
... This paper focuses on the development of a simple, fast and reliable technique of sample preparation to be employed as part of potentiometric measurements of plant total antioxidant activity (AOA). Plant extracts and plant microsuspensions were analysed. The conditions for obtaining plant extracts were chosen: they exhibited the highest antioxidant activity at +80 °C and extraction time 20 min. A ...
DOI:
10.1016/j.foodchem.2018.11.098

6. Methods To Measure the Antioxidant Activity of Phytochemicals and Plant Extracts

Author:
Amorati, Riccardo; Valgimigli, Luca
Source:
Journal of agricultural and food chemistry 2018 v.66 no.13 pp. 3324-3329
ISSN:
1520-5118
Subject:
plant extracts,   etc   ; antioxidant activity; antioxidants; phytopharmaceuticals;     Show all 4 Subjects
Abstract:
... Measurement of antioxidant properties in plant-derived compounds requires appropriate methods that address the mechanism of antioxidant activity and focus on the kinetics of the reactions involving the antioxidants. Methods based on inhibited autoxidations are the most suited for chain-breaking antioxidants and for termination-enhancing antioxidants, while different specific studies are needed for ...
DOI:
10.1021/acs.jafc.8b01079

7. Research Status and Progress of Inhibitory Effects and Inhibitory Mechanism of Complex-Type Urease Inhibitors - A Review

Author:
Chen, Xianxian; Wang, Chenyi; Fu, Jiajia; Huang, Zhaowei; Wang, Shaoqi
Source:
Communications in soil science and plant analysis 2019 v.50 no.6 pp. 772-781
ISSN:
1532-2416
Subject:
plant extracts,   etc   ; edaphic factors; food security; salts; sustainable agriculture; thermodynamics; toxicity; urease; urease inhibitors;     Show all 9 Subjects
Abstract:
... The widespread presence of urease in agricultural settings places enormous pressure on the soil environment. Urease inhibitors have been used as promising biochemical methods in reducing urease efficiency to ensure food security and agricultural sustainability. Compared with metal salts, organic products and plant extracts, complex-type urease inhibitors are low toxic, highly inhibitory and stable ...
DOI:
10.1080/00103624.2019.1579826

8. The effect of a mixture of Nigella sativa and Thymus vulgaris extracts in children with refractory epilepsies: A randomized trial

Author:
Momen, Ali Akbar; Hemati, Ali Asghar; Houshmand, Gholamreza; Heydar Azadzadeh, Maryam; Azizi Malamiri, Reza
Source:
Journal of herbal medicine 2019 v.15 pp. 100242
ISSN:
2210-8033
Subject:
plant extracts,   etc   ; Nigella sativa; Thymus vulgaris; animals; children; cross-over studies; herbal medicines; models; seizures;     Show all 9 Subjects
Abstract:
... More than 25% of seizures in children are refractory to anti-seizure medications and need other modalities to control. Recently, herbal agents with anticonvulsive effects on seizure models in animals have received significant attention, but studies that show their impact on seizures in children are scarce. In a randomized, double-blind placebo-controlled cross-over design, we tried to demonstrate ...
DOI:
10.1016/j.hermed.2018.10.007

9. An effective method based on medium‐pressure liquid chromatography and recycling high‐speed counter‐current chromatography for enrichment and separation of three minor components with similar polarity from Dracocephalum tanguticum

Author:
Yang, Xue; Wang, Nana; Shen, Cheng; Li, Hongmei; Zhao, Jingyang; Chen, Tao; Li, Yulin
Source:
Journal of separation science 2019 v.42 no.3 pp. 684-690
ISSN:
1615-9306
Subject:
plant extracts,   etc   ; Dracocephalum; countercurrent chromatography; ethyl acetate; hexane; high performance liquid chromatography; methanol; recycling; solvents;     Show all 9 Subjects
Abstract:
... The separation of minor compounds, especially those with similar polarities from a complex sample, remains challenging. In the proposed study, an effective method based on medium‐pressure liquid chromatography and recycling high‐speed counter‐current chromatography was developed for the enrichment and separation of three minor components from Dracocephalum tanguticum. The crude extract was directl ...
DOI:
10.1002/jssc.201800812

10. Quantification of THC in Cannabis plants by fast-HPLC-DAD: A promising method for routine analyses

Author:
Burnier, Céline; Esseiva, Pierre; Roussel, Christophe
Source:
Talanta 2019 v.192 pp. 135-141
ISSN:
0039-9140
Subject:
plant extracts,   etc   ; Cannabis; calibration; cannabidiol; forensic sciences; gas chromatography-mass spectrometry; high performance liquid chromatography; tetrahydrocannabinol;     Show all 8 Subjects
Abstract:
... Nowadays, Gas Chromatography Mass Spectrometry (GC-MS) is mainly used in forensic sciences but suffers from limitations when the analysed compounds are thermally instable as it is the case for THC-A (Tetrahydrocannabinolic Acid) which is converted into Δ⁹-THC (Δ⁹-Tetrahydrocannabinol) that subsequently partially degrades. We propose herein a Fast High Pressure Liquid Chromatography (Fast-HPLC-DAD) ...
DOI:
10.1016/j.talanta.2018.09.012

11. Metal–plant frameworks in nanotechnology: An overview

Author:
Sood, Richa; Chopra, Dimple Sethi
Source:
Phytomedicine 2018 v.50 pp. 148-156
ISSN:
0944-7113
Subject:
plant extracts,   etc   ; cost effectiveness; flavonoids; medicine; nanoparticles; phenols; phytopharmaceuticals; terpenoids;     Show all 8 Subjects
Abstract:
... Since ancient times, potential of plants in research and medicine have found pronounced applications, due to better therapeutic value. To meet the mounting demands for commercial nanoparticles, novel eco-friendly methods of synthesis has led to a remarkable progress via unfolding a green synthesis protocol towards metallic nanoparticles synthesis.This review highlights the biological synthesis of ...
DOI:
10.1016/j.phymed.2017.08.025

12. Fluorescent chemodosimeter for quantification of cystathionine-γ-synthase activity in plant extracts and imaging of endogenous biothiols

Author:
Agarwalla, Hridesh; Anila, H. A.; Ali, Firoj; Pradhan, Swaraj Rashmi; Ganguly, Bishwajit; Pramanik, Sumit Kumar; Das, Amitava
Source:
Chemical communications 2018 v.54 no.65 pp. 9079-9082
ISSN:
1364-548X
Subject:
plant extracts,   etc   ; chemical reactions; enzyme activity; fluorescence; homocysteine; image analysis;     Show all 6 Subjects
Abstract:
... A new reagent for quantification of CgS in plant extracts using a generalized methodology suitable for recognition of homocysteine (Hcy) with luminescence ON response. ...
DOI:
10.1039/c8cc04296a

13. A New Polyunsaturated Lipid from Tetrastigma hemsleyanum

Author:
Jin, Pengfei; Xu, Shuo; Hui, Hui; Duan, Hongquan; Zhao, Chuan; Tang, Shengan
Source:
Chemistry of natural compounds 2018 v.54 no.3 pp. 429-431
ISSN:
0009-3130
Subject:
plant extracts,   etc   ; Tetrastigma; lipids; nuclear magnetic resonance spectroscopy; spectral analysis;     Show all 5 Subjects
Abstract:
... From the petroleum ether extract of Tetrastigma hemsleyanum, a new polyunsaturated lipid, (9R)-hydroxy-(10E,12Z,15Z)-octadecatrienoic-2′,3′-dihydroxypropyl ester (1), was isolated and its structure was established on the basis of IR, MS, and extensive NMR spectroscopic analysis. ...
DOI:
10.1007/s10600-018-2371-6

14. Correction to: Ephedra Herb extract activates/desensitizes transient receptor potential vanilloid 1 and reduces capsaicin-induced pain

Author:
Nakamori, Shunsuke; Takahashi, Jun; Hyuga, Sumiko; Tanaka-Kagawa, Toshiko; Jinno, Hideto; Hyuga, Masashi; Hakamatsuka, Takashi; Odaguchi, Hiroshi; Goda, Yukihiro; Hanawa, Toshihiko; Kobayashi, Yoshinori
Source:
Natural medicines 2018 v.72 no.2 pp. 594
ISSN:
1340-3443
Subject:
plant extracts,   etc   ; Ephedra; medicinal plants; medicinal properties; pain; receptors;     Show all 6 Subjects
Abstract:
... The article Ephedra Herb extract activates/desensitizes transient receptor potential vanilloid 1 and reduces capsaicin-induced pain, written by Shunsuke Nakamori, Jun Takahashi, Sumiko Hyuga, Toshiko Tanaka-Kagawa, Hideto Jinno, Masashi Hyuga, Takashi Hakamatsuka, Hiroshi Odaguchi, Yukihiro Goda, Toshihiko Hanawa and Yoshinori Kobayashi, was originally published Online First without open access. A ...
DOI:
10.1007/s11418-018-1196-8
PubMed:
29497901
PubMed Central:
PMC5860129

15. Bringing together Saccharomyces cerevisiae and bioactive compounds from plants: A new function for a well-known biosorbent

Author:
Ribeiro, Valéria Rampazzo; Fernandes, Isabela de Andrade Arruda; Mari, Isabelle Pereira; Stafussa, Ana Paula; Rossetto, Raquel; Maciel, Giselle Maria; Haminiuk, Charles Windson Isidoro
Source:
Journal of functional foods 2019 v.60 pp. 103433
ISSN:
1756-4646
Subject:
plant extracts,   etc   ; Saccharomyces cerevisiae; absorption; adsorption; antineoplastic activity; antioxidants; bioactive compounds; bioavailability; biomass; biosorbents; biosorption; digestive enzymes; pH; yeasts;     Show all 14 Subjects
Abstract:
... Use of the Saccharomyces cerevisiae as a biosorbent material has proven versatile in innovative applications like the biosorption of bioactive compounds from plant extracts. The bioactive compounds have different biological activities such antioxidant, antimicrobial and anticancer properties. Thus, the application of S. cerevisiae intends to increase the bioaccessibility of bioactive compounds, in ...
DOI:
10.1016/j.jff.2019.103433

16. Utility of dry load injection for an efficient natural products isolation at the semi-preparative chromatographic scale

Author:
Queiroz, Emerson Ferreira; Alfattani, Abdulelah; Afzan, Adlin; Marcourt, Laurence; Guillarme, Davy; Wolfender, Jean-Luc
Source:
Journal of chromatography 2019 v.1598 pp. 85-91
ISSN:
0021-9673
Subject:
plant extracts,   etc   ; Hypericum perforatum; high performance liquid chromatography; lipophilicity; liquids; methanol; methylene chloride; risk; solubility; solubilization; solvents;     Show all 11 Subjects
Abstract:
... Semi-preparative HPLC is one of the main techniques used for the purification of natural products (NPs). Generally, the sample has to be solubilized in organic solvent and injected on column through a loop valve. Since the solubility of crude natural extracts is often limited, a high solvent volume is needed for injection. This significantly compromises the resolution and increases the risk of ove ...
DOI:
10.1016/j.chroma.2019.03.042

17. Combined magnetic ligand fishing and high-resolution inhibition profiling for identification of α-glucosidase inhibitory ligands: A new screening approach based on complementary inhibition and affinity profiles

Author:
Wubshet, Sileshi G.; Liu, Bingrui; Kongstad, Kenneth T.; Böcker, Ulrike; Petersen, Malene J.; Li, Tuo; Wang, Junru; Staerk, Dan
Source:
Talanta 2019 v.200 pp. 279-287
ISSN:
0039-9140
Subject:
plant extracts,   etc   ; Ginkgo biloba; alpha-glucosidase; enzyme inhibition; enzyme inhibitors; ethyl acetate; ligands; magnetism; noninsulin-dependent diabetes mellitus; screening;     Show all 10 Subjects
Abstract:
... Plants are well-recognized sources of inhibitors for α-glucosidase – a key target enzyme for management of type 2 diabetes. Recently, two advanced bioactivity-profiling techniques, i.e., ligand fishing and high-resolution inhibition profiling, have shown great promises for accelerating identification of α-glucosidase inhibitors from complex plant extracts. Non-specific affinities and non-specific ...
DOI:
10.1016/j.talanta.2019.03.047

18. The photoactivity of natural products – An overlooked potential of phytomedicines?

Author:
Siewert, Bianka; Stuppner, Hermann
Source:
Phytomedicine 2019 pp. 152985
ISSN:
0944-7113
Subject:
plant extracts,   etc   ; adverse effects; chemical constituents of plants; medicinal properties; microorganisms; neoplasms; photochemotherapy; photosensitizing agents; phytoalexins; porphyrins; systematic review;     Show all 11 Subjects
Abstract:
... Photoactivity, though known for centuries, is only recently shifting back into focus as a treatment option against cancer and microbial infections. The external factor light is the ingenious key-component of this therapy: Since light activates the drug locally, a high level of selectivity is reached and side effects are avoided.The first reported photoactive medicines were plant extracts. Syntheti ...
DOI:
10.1016/j.phymed.2019.152985

19. Antioxidant and antimicrobial markers by UPLC®–ESI-Q-TOF-MSE of a new multilayer active packaging based on Arctostaphylos uva-ursi

Author:
Wrona, Magdalena; Blasco, Sabrina; Becerril, Raquel; Nerin, Cristina; Sales, Ester; Asensio, Esther
Source:
Talanta 2019 v.196 pp. 498-509
ISSN:
0039-9140
Subject:
plant extracts,   etc   ; Arctostaphylos uva-ursi; active food packaging; antioxidant activity; free radical scavengers; ionization; leaves; mass spectrometry; metabolites; Spain;     Show all 10 Subjects
Abstract:
... 49 different non-volatile compounds were determined in Spanish Arctostaphylos uva-ursi leaves using UPLC®-ESI-Q-TOF with MSE technology. Both positive and negative electrospray ionization were applied. MarkerLynx® was proposed as a powerful tool to distinguish samples from eight wild populations of Spain by determining their non-volatile markers. Development of HRMS methods let to analysis of meta ...
DOI:
10.1016/j.talanta.2018.12.057

20. Background autofluorescence induced by plant extracts in human lymphocytes: A flow cytometric analysis of a critical bias

Author:
Ottoni, Marcelo Henrique Fernandes; Santos, Michaelle Geralda dos; Almeida, Valéria Gomes de; Costa, Lucas de Abreu; Meireles, Agnes Batista; Avelar-Freitas, Bethânia Alves de; Santos, Josué Augusto Teodoro dos; Pereira, Wagner de Fátima; Brito-Melo, Gustavo Eustáquio Alvim
Source:
Journal of immunological methods 2019 v.468 pp. 1-9
ISSN:
0022-1759
Subject:
plant extracts,   etc   ; Ageratum; Eriosema; aerial parts; cell culture; false positive results; flow cytometry; fluorescence; fluorometry; humans; lymphocytes; medicinal plants; wavelengths;     Show all 13 Subjects
Abstract:
... The presence of background autofluorescence sources is considered as an important problem when performing fluorometric methods, due to the possible spectral overlap between it and the fluorescence emission of probes. Regarding that, we evaluated the presence of background autofluorescence in human lymphocytes after the treatment with extracts from three medicinal plants, including ethanolic extrac ...
DOI:
10.1016/j.jim.2019.02.007