Results 121 to 130 of about 8,237 (245)

Chemical Structures and Biological Activities of Limonoids from the Genus Swietenia (Meliaceae)

open access: yesMolecules, 2018
Swietenia is a genus in the plant family Meliaceae. This genus contains seven to eight known species, found in the tropical and subtropical regions of the Americas and West Africa. Thus far, more than 160 limonoids have been isolated from four species of
Yun-Peng Sun   +7 more
doaj   +1 more source

Circular dichroism calculation for natural products [PDF]

open access: yes, 2013
Determination of the absolute configuration (AC) is often a challenging aspect in the structure elucidation of natural products. When chiral compounds possess appropriate chromophore(s), electronic circular dichroism (ECD) may provide a powerful approach
Alfarius Eko Nugroho, Hiroshi Morita
core   +1 more source

Recent progress in the chemistry and biology of limonoids

open access: yes, 2017
This review covers the isolation and structure determination of limonoids reported during 2014–2016 (with 363 new compounds in 68 papers), together with the relevant biological activities and source organisms.
Yuanyuan Zhang, Hui Xu
semanticscholar   +1 more source

Limonoids from Citrus sudachi.

open access: yesChemical and Pharmaceutical Bulletin, 2001
Four new limonoid derivatives, 1-O-methylichangensin (1), sudachinoid A (2), B (3), and C (4) were isolated from the seeds of Citrus sudachi, together with the known compounds ichangensin, obacunone, obacunoic acid and limonin, and the structures of the new compounds were elucidated based on spectroscopic and chemical evidence.
H, Nakagawa, H, Duan, Y, Takaishi
openaire   +3 more sources

Nimbolide: promising agent for prevention and treatment of chronic diseases (recent update)

open access: yesFood & Nutrition Research
Background: Nimbolide, a bioactive compound derived from the neem tree, has garnered attention as a potential breakthrough in the prevention and treatment of chronic diseases.
Peramaiyan Rajendran   +9 more
doaj   +1 more source

Inactivation of Escherichia coli ATCC 25922 and Saccharomyces cerevisiae IMR-R-L 962 in grapefruit [Citrus paradisi (Macf.)] juice by UV-C light: changes in bioactive compounds and quality characteristics [PDF]

open access: yes, 2018
The viability of UV-C treatment (0.0-2.36 J/cm²) at 254 nm as a non-thermal preservation process for grapefruit juice on microbial inactivation, the organic acids and individual flavonoids, as well as the quality characteristics (pH, ºBrix, titratable ...
la Cava, Enzo Luciano Marcelo   +1 more
core  

Secophragmalin-Type Limonoids from Trichilia connaroides: Isolation, Semisynthesis, and Their Cytotoxic Activities.

open access: yesJournal of Natural Products, 2019
Two new secophragmalin-type limonoids, secotrichagmalins B (1) and C (2) along with two known compounds, were isolated from the fruits of Trichilia connaroides. The structures of the new compounds were elucidated by analysis of spectroscopic (IR, MS, and
Divya Reddy Solipeta   +7 more
semanticscholar   +1 more source

In silico profiling of neem limonoids and gut microbiome metabolites for Alzheimer’s therapeutics: targeted inhibition of BACE1 and elucidation of intricate molecular crosstalk with tau oligomers, and bacterial gingipains

open access: yesDiscover Applied Sciences
Alzheimer’s disease (AD) is characterized by the accumulation of amyloid beta plaques and neurofibrillary tangles composed of hyperphosphorylated tau protein.
Oluwaseun E. Agboola   +7 more
doaj   +1 more source

Geduninオヨビ7―deacetoxy―7α―hydroxygeduninノ16イサンカカンゲンハンノウニヨルアナログゴウセイニツイテ [PDF]

open access: yes, 2018
  Of the gedunin-type limonoids obtained from Chinese toon, or Cedrela sinensis Juss. (Meliaceae), gedunin (1)1 is a substance that can be isolated in relatively large quantities. Acetylating gedunin (1) readily results in 7―deacetoxy―7α―hydroxygedunin (
酒井 淳一, 齊藤 久美子
core   +1 more source

Sustainable obtaining of antileishmanial compounds from Cedrela odorata L. demolition wood as an example of the circular bioeconomy

open access: yesQuímica Nova
Cedrela odorata L. (Meliaceae), popularly known as cedar, is a species that is valued for the quality of its wood, though its exploitation for decades has led it to be included on the list of Brazilian species of flora as an endangered species.
Paulo Alan D. Nogueira   +6 more
doaj   +1 more source

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