Results 61 to 70 of about 2,725 (219)

Trypanocidal and leishmanicidal activity of six limonoids [PDF]

Journal of Natural Medicines, 2020
AbstractSix limonoids [kotschyienone A and B (1, 2), 7-deacetylgedunin (3), 7-deacetyl-7-oxogedunin (4), andirobin (5) and methyl angolensate (6)] were investigated for their trypanocidal and leishmanicidal activities using bloodstream forms of Trypanosoma brucei and promastigotes of Leishmania major.
Steverding, Dietmar, Sidjui, Lazare S., Ferreira, Éden Ramalho, Ngameni, Bathelemy Ngameni, Folefoc, Gabriel N., Mahiou-Leddet, Valérie, Ollivier, Evelyne, Stephenson, G. Richard, Storr, Thomas, Tyler, Kevin   +9 more
openaire   +4 more sources

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Synthesis of limonoid CDE fragments related to limonin and nimbinim [PDF]

, 2010
[EN]A practical, brief and selective synthesis of limonoid CDE fragments from a readily available starting diketone is described. The key step is a cationic electrocyclization promoted by strong acids. In general the methodology has been demonstrated for
Simmonds, M.S.J., Herrero Teijón, Pablo, Rubio González, María Rosa, Pascual Coca, Gustavo, Fernández Mateos, Alfonso   +4 more
core   +1 more source

Five New Limonoids from Peels of Satsuma Orange (Citrus reticulata)

Molecules, 2017
Five new: 21,23-dihydro-21-hydroxy-23-oxonomilin (1), 21,23-dihydro-23-methoxy-21-oxonomilin (2), 21,23-dihydro-21-hydroxy-23-oxonomilinic acid methyl ester (3), 21,23-dihydro-23-methoxy-21-oxolimonin (4), and 21,23-dihydro-21-oxolimonin (5), and seven ...
Takashi Kikuchi, Yasuaki Ueno, Yoshino Hamada, Chika Furukawa, Takako Fujimoto, Takeshi Yamada, Reiko Tanaka   +6 more
doaj   +1 more source

Twenty-Nine New Limonoids with Skeletal Diversity from the Mangrove Plant, Xylocarpus moluccensis

Marine Drugs, 2018
Twenty-nine new limonoids—named xylomolins A1–A7, B1–B2, C1–C2, D–F, G1–G5, H–I, J1–J2, K1–K2, L1–L2, and M–N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis.
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu   +4 more
doaj   +1 more source

Phytochemistry and Biological Activities of Guarea Genus (Meliaceae)

Molecules, 2022
Guarea is one of the largest genera of the American Meliaceae family, consisting of over 69 species which are widely distributed in Mexico, Argentina, and Africa and are used in traditional medicine for several diseases.
Wahyu Safriansyah, Siska Elisahbet Sinaga, Unang Supratman, Desi Harneti   +3 more
doaj   +1 more source

Association of peanut cultivars and aqueous neem extract in the feeding and development of Spodoptera frugiperda (J. E. Smith)

EntomoBrasilis, 2020
The current study aimed to test how aqueous neem Azadirachta indica A. Juss. extract affects the attractiveness, feeding and development of Spodoptera frugiperda (J. E. Smith) on different: peanut cultivars.
Arlindo Leal Boiça Junior, Nara Elisa Lobato Rodrigues, Julio Cesar Janini, Daline Benites Bottega, Vitor Quintela Sousa, Anderson Gonçalves da Silva   +5 more
doaj   +1 more source

Microwave-assisted extraction as an advanced technique for optimisation of limonoid yields and antioxidant potential from Trichilia roka (Meliaceae)

Current Research in Green and Sustainable Chemistry, 2021
Response surface methodology (RSM) was applied to predict optimum conditions for microwave-assisted extraction (MAE) of total limonoid (TL) and antioxidant potential investigation from Trichilia roka (Chiov) root bark.
Olga Nana, Jean Momeni, Fabrice Fekam Boyom, Nicolas Yanou Njintang, Martin Benoît Ngassoum   +4 more
doaj   +1 more source

Obacunone, a Promising Phytochemical Triterpenoid: Research Progress on Its Pharmacological Activity and Mechanism

Molecules
Obacunone, a natural triterpenoid, is an active component of the herbs Dictamnus dasycarpus Turcz. and Phellodendron amurense Rupr, and an indicator of the herbs’ quality. Owing to its multiple health benefits, several studies have investigated the multi-
Yuyang Zhou, Jifeng Gu, Jiahui Li, Huishan Zhang, Mei Wang, Yuanyuan Li, Tianming Wang, Jiajie Wang, Rong Shi   +8 more
doaj   +1 more source

Changes in Volatile and Non-Volatile Flavor Chemicals of “Valencia” Orange Juice over the Harvest Seasons

Foods, 2016
Florida “Valencia” oranges have a wide harvest window, covering four months after first reaching the commercial maturity. However, the influence of harvest time on juice flavor chemicals is not well documented, with the exception of sugars and acids ...
Jinhe Bai, Elizabeth A. Baldwin, Greg McCollum, Anne Plotto, John A. Manthey, Wilbur W. Widmer, Gary Luzio, Randall Cameron   +7 more
doaj   +1 more source