Results 31 to 40 of about 153,197 (305)

Bioassay-guided isolation and identification of antimicrobial compounds from thyme essential oil by means of overpressured layer chromatography, bioautography and GC-MS [PDF]

, 2012
A simple method is described for efficient isolation of compounds having an antibacterial effect. Two thyme (Thymus vulgaris) essential oils, obtained from the market, were chosen as prospective materials likely to feature several bioactive components ...
Andrea Böszörményi, B Lorber, BJ Juven, C Anagnostopoulos, C Rota, E Mincsovics, E Mincsovics, E Mincsovics, E Wedge, Emil Mincsovics, EO King, Ernő Tyihák, Gy Horváth, IM Choma, J Fan, L Botz, PZ Wang, Péter G. Ott, RR Nelson, S Koduru, Ágnes M. Móricz, ÁM Móricz, ÁM Móricz, Éva Lemberkovics   +23 more
core   +1 more source

Comparison of Overpressured-Layer Chromatography and High-Performance/High-Pressure Layer Electrochromatography Using the New Prototype Equipment in Various Operational Modes

Molecules, 2022
In our previous paper we have presented the new prototype equipment and introduced a new analytical technique—high-performance/high-pressure layer electrochromatography (HPLEC), a combination of overpressured-layer chromatography (OPLC) and pressurized ...
Radosław Łukasz Gwarda, Tadeusz Henryk Dzido   +1 more
doaj   +1 more source

Screening and quantification of antibiotic residues in poultry products and feed in selected areas of Bangladesh [PDF]

Veterinary World, 2023
Background and Aim: Antibiotic residues in livestock farming have been identified as a potential cause of antimicrobial resistance in humans and animals.
Aminatu Abubakar Sani, Kazi Rafiq, Md. Tarek Hossain, Fatema Akter Suherman, Azizul Haque, Mohammad Izmal Hasan, Sabbya Sachi, Afrina Mustari, Md. Zahorul Islam, Md. Mahbub Alam   +9 more
doaj   +1 more source

A Review on Radiochemical Purity Analysis Methods of Radiopharmaceuticals

Journal of Isotopes, 2021
Radiopharmaceuticals means radionuclide preparations or labeled compounds for clinical diagnosis or therapeutic use. Radiochemical purity is one of the important judgment indexes to measure the quality of radiopharmaceuticals, which directly affects the ...
ZHANG Yun;YANG Liu;JIANG Hua
doaj   +1 more source

Mitigation of acrylamide by l-asparaginase from Bacillus subtilis KDPS1 and analysis of degradation products by HPLC and HPTLC [PDF]

, 2016
The use of bacterial l-asparaginase (LA) is one of the alternative approaches for acrylamide reduction in food stuffs as it catalyzes the conversion of l-asparagine to l-aspartic acid and ammonia.
Devendra Vaishnav, Gaurav Dave, Gaurav Sanghvi, Kapil Bhimani, Navin Sheth, Prashant Kunjadia, Tejas Oza   +6 more
core   +1 more source

Identification and quantification of cannabinol as a biomarker for local hemp retting in an ancient sedimentary record by HPTLC-ESI-MS [PDF]

, 2020
Cannabis products have been used in various fields of everyday life for many centuries, and applications in folk medicine and textile production have been well-known for many centuries.
Csuk, René, Demske, Dieter, Kluge, Ralph, Kramell, Annemarie Elisabeth, Oehler, Florian, Schmidt, Theresa, Tarasov, Pavel E.   +6 more
core   +2 more sources

HPLC analysis and cell surface receptor binding activities of the crude aqueous and methanolic extract of Sesamum indicum

Asian Pacific Journal of Tropical Biomedicine, 2014
Objective: To identify the possible functional molecules for therapeutic uses by screening the crude aqueous and methanolic extracts derived from sesame seeds (Sesamum indicum) in vitro.
Repon Kumer Saha, Md. Abu Monsur Dinar, Kausain Akther Nabila, Priyanka Roy   +3 more
doaj   +1 more source

High performance thin layer chromatographic determination of nifedipine in human serum after liquid-liquid extraction

Química Nova, 2012
A method using HPTLC for quantitation of nifedipine in serum was developed and validated. It includes a liquid-liquid extraction, and carbamazepine as internal standard. Chloroform: ethyl acetate: cyclohexane (19:2:2, v/v/v) was the mobile phase.
Sigrid Mennickent, Jonathan Contreras, Berta Schulz, Marta de Diego, Mario Vega   +4 more
doaj   +1 more source

Quercetin in ayurvedic formulations: High-performance thin-layer chromatography based rapid fingerprinting profiling

Phytomedicine Plus, 2023
The objective of the research was to select various ayurvedic marketed formulations and performed standardization of ayurvedic formulations as per Ayurvedic Pharmacopeia of India.
Abhishek Verma, Preeti Patel, Alok Sharma, Balak Das Kurmi   +3 more
doaj   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source