Results 101 to 110 of about 332,408 (303)

Isolation of Phenolic Acids from Land Kale (Ipomoea reptans Poir) and Antioxidant Activity

Jurnal Kimia Sains dan Aplikasi
Land kale or Ipomoea reptans Poir is widely consumed by Indonesian people. Land kale plants can be used as natural antioxidants because they contain polyphenolic compounds, one of which is phenolic acid.
Enny Fachriyah, Sofiana Nur Aziiza, Ismiyarto Ismiyarto, Purbowatiningrum Ria Sarjono, Dwi Hudiyanti, Sumariyah Sumariyah   +5 more
doaj   +1 more source

TLC determination of some flavanones in the buds of different genus Populus species and hybrids

Acta Pharmaceutica, 2018
Flavonoids in the buds of eight Populus species and hybrids were detected and compared with the aid of an optimized TLC method. Separation of 17 flavonoid aglycones belonging to different groups, namely, flavones, flavonols, flavanones and flavanonols ...
Pobłocka-Olech Loretta, Migas Piotr, Krauze-Baranowska Mirosława   +2 more
doaj   +1 more source

Fatty acid profile and effect of fish fermented silage on digestive enzymes in Labeo rohita

Bioscience Journal, 2017
Due to inconsistency in demand and supply of fishmeal there is immense need of alternate protein sources. Present project was therefore designed to replace costly fishmeal (FM) with low-priced fermented fish silage (FFS) in fish feed.
Muhammad Sultan Haider, Zeeshan Ali, Asif Naseem, Muhammad Ahmad, Shahid kamal, Muhammad Afzal   +5 more
doaj   +1 more source

Sustainable Microwave‐Enhanced Synthesis of 2‐Substituted Benzofurans From o‐Alkynylanisoles in Acidic Deep Eutectic Solvents

European Journal of Organic Chemistry, EarlyView.
A microwave‐enhanced sustainable and versatile approach to substituted benzofurans from 2‐alkynylanisoles enabled by an active Brønsted acidic deep eutectic solvent. The research on alternative media for organic transformations remains a highly demanding topic.
Alessandra Gritti, Angelica Sita, Mehri Goudarzi, Stefano Fedeli, Elison Lepore, Donatella Nava, Matteo Tiecco, Alessandro Caselli, Valentina Pirovano, Giorgio Abbiati   +9 more
wiley   +1 more source

Phase‐Transfer‐Catalyzed Interrupted Barton–Zard Reaction Between Electron‐Deficient Indoles and Benzophenone‐Derived Isocyanides

European Journal of Organic Chemistry, EarlyView.
A cascade reaction under phase‐transfer conditions between 3‐nitro indoles and isocyanomethylene dibenzenes affords the construction of pyrrolo[3,4‐b]indole cores. Control experiments provide insight into moderate product yields and clarify why the reaction is not amenable to asymmetric induction. A cascade reaction enabling the construction of pyrrolo[
Ana Mikleušević, Ines Bašić, Mateja Matišić, Josip Rešetar, Matija Gredičak   +4 more
wiley   +1 more source

Design, Synthesis, and Photophysical Studies of Functionalized Polyaromatic Isonitriles as Visible Light Photoredox Catalysts

European Journal of Organic Chemistry, EarlyView.
A new series of structurally rich polyaromatic isonitriles is presented as photoredox catalysts. Their photophysical properties are investigated by UV–Vis absorption and fluorescence measurements, combined with experimental and theoretical studies to evaluate both ground‐ and excited‐state redox properties.
Cristina Martini, Camilla Russo, Jussara Amato, Carmine Volpe, Francesca Brunelli, Laurence Grimaud, Maxime R. Vitale, Greta Donati, Andrea Basso, Mariateresa Giustiniano   +9 more
wiley   +1 more source

Development of method of qualitative analysis of bird cherry fruit for inclusion in the monograph of state pharmacopoeia of Ukraine

Annals of Mechnikov's Institute, 2020
Introduction.Bird cherryPadusaviumMill, Rosaceae,is widespread in Ukraine, especially in forests and forest-steppe areas. Bird cherry fruits have long been used in medicine and is a valuable medicinal raw materials. They stated to posess astringent, anti-
L Lenchyk, A Kotov, V Kyslychenko, E Kotova   +3 more
doaj  

Rh(III)‐Catalyzed [4+2] Annulation of Imidazoles With α‐Diazocarbonyl Compounds: Direct Access to π‐Conjugated Imidazole‐Fused Isoquinolinone

European Journal of Organic Chemistry, EarlyView.
A Rh(III)‐catalyzed [4 + 2] annulation of 2‐aryl imidazoles/benzimidazoles with α‐diazocarbonyl compounds is developed for the synthesis of π‐conjugated imidazo/benzimidazo[2,1‐a]isoquinolinones systems. Mechanistic studies and control experiment reveal that the reaction proceeds via imidazole‐directed ortho C(sp2)–H activation, followed by carbene C–H
Ganesh P. Pawar, Duc Huy Le, Li Ching Shen, Sheng‐Cih Huang, Chung‐Ming Sun   +4 more
wiley   +1 more source

Assessment and Control of Organic Impurities in Medicinal Products: A Review

Регуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. The determination of impurities is a key requirement for the quality assessment of medicines because impurities can significantly impact the quality and therapeutic effectiveness.
O. A. Matveeva, E. L. Kovaleva, A. A. Ponomarenko   +2 more
doaj   +1 more source

STUDY OF CHROMATOGRAPHIC FINGERPRINT OF FLAVONOID COMPOUNDS OF THE BUR-MARIGOLD HERB

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2021
The main aim of this work was to determine the possibility of reliable identification of phenolic compounds, in particular flavonoids, specific for very popular type of medicinal plant material Bidens (B. tripartita, B. frondosa, B.
ELINA E. KOTOVA, SEMEN A. KOTOV, ANDRIY G. KOTOV   +2 more
doaj