Results 31 to 40 of about 11,256 (144)

Dihydroisocoumarins, Naphthalenes, and Further Polyketides from Aloe vera and A. plicatilis: Isolation, Identification and Their 5-LOX/COX-1 Inhibiting Potency

Molecules, 2021
The present study aims at the isolation and identification of diverse phenolic polyketides from Aloe vera (L.) Burm.f. and Aloe plicatilis (L.) Miller and includes their 5-LOX/COX-1 inhibiting potency.
Hans Wilhelm Rauwald, Ralf Maucher, Gerd Dannhardt, Kenny Kuchta   +3 more
doaj   +1 more source

Formaldehyde as a Chemical Defence Agent of Fruiting Bodies of Mycena rosea and its Role in the Generation of the Alkaloid Mycenarubin C

ChemBioChem, Volume 21, Issue 11, Page 1613-1620, June 2, 2020., 2020
Natural protection: Mycenaubin C, a pyrroloquinoline alkaloid with an unprecedented core structure, was isolated from fruiting bodies of M. rosea. The alkaloid is generated from mycenarubin A and formaldehyde. The amounts of formaldehyde present in the fruiting bodies of M. rosea exhibit a fungistatic effect against the mycoparasite S. fusiger. In turn,
Rieke Himstedt, Silke Wagner, Robert J. R. Jaeger, Michèle‐Laure Lieunang Watat, Jana Backenköhler, Zeljka Rupcic, Marc Stadler, Peter Spiteller   +7 more
wiley   +1 more source

Ellagic acid derivatives from Terminalia chebula Retz. downregulate the expression of quorum sensing genes to attenuate Pseudomonas aeruginosa PAO1 virulence. [PDF]

PLoS ONE, 2013
BACKGROUND: Burgeoning antibiotic resistance in Pseudomonas aeruginosa has necessitated the development of anti pathogenic agents that can quench acylhomoserine lactone (AHL) mediated QS with least risk of resistance.
Sajal Sarabhai, Prince Sharma, Neena Capalash   +2 more
doaj   +1 more source

Total Synthesis of Tri‐, Hexa‐ and Heptasaccharidic Substructures of the O‐Polysaccharide of Providencia rustigianii O34

Chemistry – A European Journal, Volume 26, Issue 28, Page 6264-6270, May 15, 2020., 2020
Embedded fucoses: First syntheses of substructures of the O‐polysaccharide of Providencia rustiginii O34 are presented. The repeating unit is a heptasaccharide with seven different monosacchride units (see figure). Abstract A general and efficient strategy for synthesis of tri‐, hexa‐ and heptasaccharidic substructures of the lipopolysaccharide of ...
Somayeh Ahadi, Shahid I. Awan, Daniel B. Werz   +2 more
wiley   +1 more source

ISOLASI SENYAWA PEMBANDING DARI KAYU SECANG (Caesalpinia sappan L.) [PDF]

, 2015
Secang merupakan tanaman yang sudah lama banyak digunakan sebagai obat tradisional. Adanya komponen brazilin memberikan warna spesifik dari kayu secang yaitu warna merah.
Bayu, Sahyo Wahyu
core   +1 more source

Neutralization of pharmacological and toxic activities of Bothrops jararacussu snake venom and isolated myotoxins by Serjania erecta methanolic extract and its fractions

Journal of Venomous Animals and Toxins including Tropical Diseases, 2011
Most of the snakebites recorded in Brazil are caused by the Bothrops genus. Given that the local tissue damage caused by this genus cannot be treated by antivenom therapy, numerous studies are focusing on supplementary alternatives, such as the use of ...
RS Fernandes, TR Costa, S Marcussi, CP Bernardes, DL Menaldo, II Rodriguéz Gonzaléz, PS Pereira, AM Soares   +7 more
doaj   +1 more source

Preparative Isolation of Two Prenylated Biflavonoids from the Roots and Rhizomes of Sinopodophyllum emodi by Sephadex LH-20 Column and High-Speed Counter-Current Chromatography

Molecules, 2015
Two prenylated biflavonoids, podoverines B–C, were isolated from the dried roots and rhizomes of Sinopodophyllum emodi using a Sephadex LH-20 column (SLHC) and high-speed counter-current chromatography (HSCCC).
Yan-Jun Sun, Li-Xin Pei, Kai-Bo Wang, Yin-Shi Sun, Jun-Min Wang, Yan-Li Zhang, Mei-Ling Gao, Bao-Yu Ji   +7 more
doaj   +1 more source

Sephadex sandwich disc electrophoresis

, 1970
A new Sephadex sandwich disc electrophoresis method has been devised for effective resolution of complex macromolecules on the basis of their charge and molecular dimensions.
Fatterpaker, P., Koppikar, S. V., Sreenivasan, A.   +2 more
core   +1 more source

Tannins of Tamarind Seed Husk: Preparation, Structural Characterization, and Antioxidant Activities

Natural Product Communications, 2011
The high content (about 39%) of polymeric tannins in tamarind ( Tamarindus indica L.) seed husk (TSH) was demonstrated, and an extract (crude TSE) with a high content (about 94%) of polymeric tannins was prepared from TSH with a one pot extraction using ...
Puksiri Sinchaiyakit, Yohji Ezure, Sarin Sriprang, Supakorn Pongbangpho, Nasapon Povichit, Maitree Suttajit   +5 more
doaj   +1 more source

Poly(2‐Oxazoline)‐Based Polyphotoacids: Synthesis, Solution Behavior, and Cellular Uptake of Multi‐Responsive Intracellular Transporters

Macromolecular Rapid Communications, Volume 47, Issue 14, 20 July 2026.
The ability of photoacids to increase their acidity in response to light irradiation (excited state proton transfer, ESPT) makes them attractive building blocks for the design of stimuli‐responsive copolymers. In this contribution, we present highly biocompatible polyphotoacids based on poly(2‐oxazoline)s bearing 1‐hydroxypyrene units. Low cytotoxicity,
Leonid I. Kaberov, Amod Godbole, Laura Klement, Sreevalsan Achikkulathu, Avinash Chettri, Benjamin Dietzek‐Ivanšić, Carsten Hoffmann, Felix H. Schacher   +7 more
wiley   +1 more source