Results 1 to 10 of about 21,056 (199)

Bioactive Prenyl- and Terpenyl-Quinones/Hydroquinones of Marine Origin † [PDF]

Marine Drugs, 2018
The sea is a rich source of biological active compounds, among which terpenyl-quinones/hydroquinones constitute a family of secondary metabolites with diverse pharmacological properties.
Pablo A. García, Ángela P. Hernández, Arturo San Feliciano, Mª Ángeles Castro   +3 more
doaj   +2 more sources

Electrocatalytic Activity of Heteroatom-Doped Graphene for Oxidation of Hydroquinones

Electrochemistry, 2020
In the present study, we aim to synthesize heteroatom (nitrogen or boron) doped-reduced graphene oxide (N-rGO or B-rGO) as a catalyst for the electro-oxidation of hydroquinones, used as a candidate of fuel (hydrogen carrier molecule) for direct-type fuel
Masanori HARA, Prerna JOSHI, Rajashekar BADAM, Hsin-Hui HUANG, Masamichi YOSHIMURA   +4 more
doaj   +1 more source

Dactylospongia elegans—A Promising Drug Source: Metabolites, Bioactivities, Biosynthesis, Synthesis, and Structural-Activity Relationship

Marine Drugs, 2022
Marine environment has been identified as a huge reservoir of novel biometabolites that are beneficial for medical treatments, as well as improving human health and well-being.
Sabrin R. M. Ibrahim, Sana A. Fadil, Haifa A. Fadil, Rawan H. Hareeri, Sultan O. Alolayan, Hossam M. Abdallah, Gamal A. Mohamed   +6 more
doaj   +1 more source

Cu-catalyzed asymmetric regiodivergent electrosynthesis and its application in the enantioselective total synthesis of (-)-fumimycin

Nature Communications, 2023
Quaternary amino acids are one of the essential building blocks and precursors of medicinally important compounds. Various synthetic strategies towards their synthesis have been reported.
Tian Xie, Jianming Huang, Juan Li, Lingzi Peng, Jin Song, Chang Guo   +5 more
doaj   +1 more source

Caudiquinol: A Meroterpenoid with an Intact C20 Geranylgeranyl Chain Isolated from Garcinia caudiculata

Molecules
The tropical Garcinia genus of flowering plants is a prolific producer of aromatic natural products including polyphenols, flavonoids, and xanthones. In this study, we report the first phytochemical investigation of Garcinia caudiculata Ridl.
Maya Valmiki, Stephen Ping Teo, Pedro Ernesto de Resende, Simon Gibbons, A. Ganesan   +4 more
doaj   +1 more source

Potential of Syzygnium polyanthum as Natural Food Preservative: A Review

Foods, 2023
Food preservation is one of the strategies taken to maintain the level of public health. Oxidation activity and microbial contamination are the primary causes of food spoilage.
Nur Julizan, Safri Ishmayana, Achmad Zainuddin, Pham Van Hung, Dikdik Kurnia   +4 more
doaj   +1 more source

SCREENING OF ANTIMICROBIAL PROPERTIES OF ETHANOLIC EXTRACTS FROM SOME KINDS OF RAW MATERIALS WITH QUINONEDERIVATIVES [PDF]

Annals of Mechnikov's Institute, 2014
This paper presents data on screening of antimicrobial properties of extracts from some kinds of raw materials (18 plants) with hydroquinone, naphtoquinone or anthraquinone derivatives.
Boyko N.N., Zaytsev A.I., Osolodchenko T. P.   +2 more
doaj  

A preliminary study on α-glucosidase inhibitory and antidiabetic activity of Indonesian Toona sinensis bark extract in alloxan-induced diabetic rats [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2020
This study aimed to determine the antidiabetic activity of Toona sinensis bark extract. Spectrophotometry was used to measure the inhibitory activity of α-glucosidase. Its antidiabetic activity was determined in vivo. Phytochemical analysis showed that
Syamsul Falah, Sitha Arilah Ichsan, Ahmad Fajri Prabowo, Syaefudin   +3 more
doaj   +1 more source

Intramolecular Hydrogen Bond in Biologically Active o-Carbonyl Hydroquinones

Molecules, 2014
Intramolecular hydrogen bonds (IHBs) play a central role in the molecular structure, chemical reactivity and interactions of biologically active molecules.
Maximiliano Martínez-Cifuentes, Boris E. Weiss-López, Leonardo S. Santos, Ramiro Araya-Maturana   +3 more
doaj   +1 more source

B:Chemical constituents and biological effects of Ganoderma mushroom [PDF]

Records of Pharmaceutical & Biomedical Sciences, 2020
Ganoderma is a medicinal mushroom that has been used for years for treatment of various diseases. Ganoderma mushroom was considered as "mushroom of immortality" in traditional Chinese medicine and was used to cure many diseases including cancer. Over the
Neveen El-Sherif, Safwat Ahmed, eman habib, Reda Abdelhameed   +3 more
doaj   +1 more source