Results 121 to 130 of about 514 (160)
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Limonoids and triterpenoids from the stems of Chukrasia tabularis A. Juss.
Phytochemistry Letters, 2019Abstract Three new limonoids named chuktabrin L (1), meliasenin Y (2), 11α-acetoxy-20,21,22,23-tetrahydro-23-oxoazadirone (3) and one new triterpenoid, named hispidol C (4), together with one known compound hispidol B (5) were isolated from the stems of Chukrasia tabularis A. Juss.
Yancui Wang +6 more
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Antimutagenic and Antioxidant Characteristics of Chukrasia tabularis A Juss Extracts
International Journal of Toxicology, 2010The current study aims to evaluate the antioxidative and antimutagenic activities of methanol extract and different fractions of Chukrasia tabularis leaves. The antioxidative potential was evaluated using 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) cation and superoxide anion radical-scavenging assay.
Rajbir, Kaur +3 more
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Phytochemistry, 2021
Six undescribed 1,8,9-phragmalin limonoid orthoesters (chukorthoesters A-F, 1-6) and two undescribed mexicanolide-type limonoids (ivorenoids H and I, 7 and 8), together with ten known limonoids, were isolated from the seeds of common wood-source and greening plants Chukrasia tabularis A. Juss.
Heng, Li +8 more
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Six undescribed 1,8,9-phragmalin limonoid orthoesters (chukorthoesters A-F, 1-6) and two undescribed mexicanolide-type limonoids (ivorenoids H and I, 7 and 8), together with ten known limonoids, were isolated from the seeds of common wood-source and greening plants Chukrasia tabularis A. Juss.
Heng, Li +8 more
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First report of Tapinolachnus lacordairei (Coleoptera: Cerambycidae) damage in Chukrasia tabularis
International Journal of Tropical Insect Science, 2020Chukrasia tabularis (Meliaceae) has been planted for many decades in home gardens and plantations in Vietnam. Recently, growers have become concerned with attack by stem borers. Tapinolachnus lacordairei J. Thomson 1864 (Coleoptera: Cerambycidae) is identified as a new indigenous pest causing damage to 15 to 30 year-old stands of C.
Nguyen Minh Chi, Bernard Dell
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Phytochemistry Letters, 2021
Abstract Three new triterpenoids (1–3), including two new 19 (10 → 9β) abeo-tirucallane derivatives (1–2) and a new tirucallane-type triterpenoid (3), together with two known tirucallane-type triterpenoids (4–5) were isolated from the ethanol extract of the fruits of Chukrasia tabularis.
Jia-Meng Hu +10 more
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Abstract Three new triterpenoids (1–3), including two new 19 (10 → 9β) abeo-tirucallane derivatives (1–2) and a new tirucallane-type triterpenoid (3), together with two known tirucallane-type triterpenoids (4–5) were isolated from the ethanol extract of the fruits of Chukrasia tabularis.
Jia-Meng Hu +10 more
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Naturwissenschaften, 2008
Polyphenols and polyphenol-rich fractions of plants have been reported to have protective effects against lipid peroxidation, most probably by serving as scavengers of free radicals and/or by chelating metal ions. In the present study, the effect of different extracts/subfractions of Chickrassy (Chukrasia tabularis) on peroxyl radical mediated damage ...
Rajbir, Kaur +3 more
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Polyphenols and polyphenol-rich fractions of plants have been reported to have protective effects against lipid peroxidation, most probably by serving as scavengers of free radicals and/or by chelating metal ions. In the present study, the effect of different extracts/subfractions of Chickrassy (Chukrasia tabularis) on peroxyl radical mediated damage ...
Rajbir, Kaur +3 more
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Australasian Plant Pathology, 2020
Chukrasia tabularis is a rare and valuable tree in the mahogany family (Meliaceae) which has been planted with fruit trees in home gardens in Vietnam more than 60 years. Recently, households have become concerned with sporadic trees wilting and dying. In this study we explore this new tree decline.
N. M. Chi +10 more
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Chukrasia tabularis is a rare and valuable tree in the mahogany family (Meliaceae) which has been planted with fruit trees in home gardens in Vietnam more than 60 years. Recently, households have become concerned with sporadic trees wilting and dying. In this study we explore this new tree decline.
N. M. Chi +10 more
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Management of Hypsipyla robusta Moore (Pyralidae) damage in Chukrasia tabularis A. Juss (Meliaceae)
International Journal of Tropical Insect Science, 2021Chukrasia tabularis is a high-value tree in the mahogany family and in Vietnam is grown in home gardens and small plantations. One to 3-year old trees are susceptible to shoot tip damage from larvae of Hypsipyla robusta which feed inside the stem. With the recent expansion of C.
N. M. Chi +8 more
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Four new limonoids from the seeds of Chukrasia tabularis A. Juss.
Phytochemistry Letters, 2017Abstract Two new C-15 enolic acyl phragmalin-type limonoid orthoesters ( 1 - 2 ) which possessed a C-15-propionyl phragmalin skeleton and two new mexicanolide-type limonoids ( 3 - 4 ) were isolated from the ethanol extract of seeds of Chukrasia tabularis A. Juss.
Li Yi +5 more
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Twelve Novel and Diverse 16-Norphragmalin-Type Limonoids from Chukrasia tabularis var. velutina
Chemical and Pharmaceutical Bulletin, 2012 A series of novel and structurally related C-15-acyl 16-norphragmalin-type limonoids, chuktabrins C-J (1-8) and chuktabularins U-X (9-12), were isolated from the stem bark of Chukrasia tabularis var. velutina. Their structures were established on the basis of detailed spectroscopic analysis, and the absolute configuration of compound 1 was determined ...
Jun Luo, Jun-Song Wang, Ling-Yi Kong
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