Results 61 to 70 of about 32,155 (309)

Tirucallane-Type Triterpenoids from the Dysoxylum gaudichaudianum Stem Bark: Phytochemical Study and Cytotoxicity Evaluation Against Human HeLa Cervical Cancer Cells

open access: yesIndonesian Journal of Chemistry
A total of three tirucallane-type triterpenoids were successfully isolated from the n-hexane extract of the stem bark of Dysoxylum gaudichaudianum: 4,4,14-trimethyl-3-oxo-24-nor-5α,13α,14β,17α,20S-chol-7-en-23-oic (1), toonapubesin B (2), and 3β,22S ...
Faizah Maira   +5 more
doaj   +1 more source

ISOLASI DAN ELUSIDASI STRUKTUR TRITERPENOID KULIT BATANG SURIAN Toona sinensis DAN UJI TERHADAP HAMA Crosidolomia pavonana

open access: yesJurnal Riset Kimia, 2015
Tryterpenoid compound (3-hydroxyeupha-7-ene) were isolated from hexane fraction the steam bark of Toona sinensis (Meliaceae). The structures of these compounds were established base on spectroscopic evidence, including UV, IR, 3C-NMR, 1H-NMR, HMBC, HMQC ...
Adlis Santoni   +3 more
doaj   +1 more source

Host Status of Brazilian Native Tree Species to Root‐Knot Nematodes

open access: yesForest Pathology, Volume 56, Issue 1, February 2026.
ABSTRACT Root‐knot nematodes (RKN, Meloidogyne spp.) are among the most important plant pathogenic organisms, causing significant damage, with a wide geographical distribution and being difficult to control. The ability of these nematodes to parasitize native trees from Brazilian biomes is little understood.
Ismail Teodoro de Souza Júnior   +6 more
wiley   +1 more source

Causal Analysis of a Migration of the Snout Butterfly, Libytheana bachmanii Iarvata (Strecker) (Libytheidae) [PDF]

open access: yes, 1983
Observation of a massive migration of the snout butterfly, Libytheana bachmanii larvata (Strecker), in central Texas in 1971 is described. An association of peak migration periods and periodic precipitation episodes is believed to be causal in nature ...
Neck, Raymond W.
core   +1 more source

Mechanisms of Action Involved in the In Vivo Gastroprotective Response of Fruits: A Systematic Review

open access: yesFood Frontiers, Volume 7, Issue 1, January 2026.
ABSTRACT Gastrointestinal diseases remain a significant global health concern, primarily due to the limitations of current pharmacological treatments, which often come with adverse side effects and high recurrence rates. This situation highlights the urgent need for safer and more effective alternatives.
Isabel Sousa Alcântara   +7 more
wiley   +1 more source

Physical properties of four ring-porous hardwood species: Influence of wood rays on tangential and radial wood shrinkage [PDF]

open access: yes, 2019
Some relationships between ray proportions, strength and shrinkage properties and basic density in hardwood species were highlighted. A better understanding of their relationships caused by the variation in moisture content in the hygroscopic domain ...
Candelier, Kévin   +4 more
core   +1 more source

Edible Seeds in the Fight Against Hypertension: A Review of In Vitro, In Vivo, and Clinical Evidences With a Mechanistic Insight of Bioactive Compounds

open access: yesFood Frontiers, Volume 7, Issue 1, January 2026.
The presented review provides the potential antihypertensive benefits of traditionally employed edible seeds, presenting new perspectives and avenues for future research. ABSTRACT Hypertension, often referred to as a silent killer, is responsible for 7.5 million deaths, representing approximately 12.8% of all global mortality.
Jinmin Shi   +8 more
wiley   +1 more source

Classification of CITES-listed and other neotropical Meliaceae wood images using convolutional neural networks

open access: yesPlant Methods, 2018
The current state-of-the-art for field wood identification to combat illegal logging relies on experienced practitioners using hand lenses, specialized identification keys, atlases of woods, and field manuals.
Prabu Ravindran   +3 more
semanticscholar   +1 more source

Rare Earth Elements in Plants of the Peak Range Volcanics (Queensland), Australia Exploration Target: A Biogeochemical Prospecting Tool

open access: yesEcological Research, Volume 41, Issue 1, January 2026.
The Peak Range Volcanics in central Queensland, Australia is naturally enriched with REEs (Rare Earth Elements). Fieldwork was conducted to analyse REEs in plant species occurring in this area. ABSTRACT Rare Earth Elements (REEs) are critical for high‐tech technologies in the green energy transition.
Amelia Corzo‐Remigio   +3 more
wiley   +1 more source

Chemical Constituents from the Fruit of Melia azedarach and Their Anti-Inflammatory Activity

open access: yesAntioxidants
Phytochemical investigations of Melia azedarach fruits have led to the isolation of a novel tirucallane triterpenoid (1), four new limonoids (2–5), and four known limonoids (6–9).
Fan Cao   +7 more
doaj   +1 more source

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