scispace - formally typeset
Search or ask a question
Topic

Toona

About: Toona is a research topic. Over the lifetime, 105 publications have been published within this topic receiving 1251 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, the volatile compounds of Toona sinensis (A. Juss.) Roem were determined based on microwave assisted extraction and headspace solid phase microextraction followed by gas chromatography-mass spectrometry.
Abstract: Toona sinensis (A. Juss.) Roem. belonging to the Toona family was used as one of the traditional Chinese medicines in China. Based on microwave-assisted extraction (MAE) and headspace solid-phase microextraction followed by gas chromatography-mass spectrometry, the volatile compounds of Toona sinensis (A. Juss.) Roem. were determined. Results indicated that the optimum condition of the determination of the volatile compounds in Toona sinensis (A. Juss.) Roem. was achieved with the experimental parameters including fiber coating of PDMS/DVB, microwave power of 400 W and irradiation time of 4 min. Under the optimal conditions, for the first time, 45 volatile compounds were separated and identified from the fresh leaves of Toona sinensis (A. Juss.) Roem. The highest content component of the 45 compounds was trans-Caryophyllene (21.422%). Relative standard deviation (RSD) values <9% showed that the present method has good precision. The experimental results demonstrate that MAE-HS-SPME followed by GC–MS is a simple, time-saving and solvent-free method, and it is a potential analytic tool for the determination of the volatile compounds of TCMs.

36 citations

01 Jan 2010
TL;DR: In this paper, the analysis of ash of Quercus infectoria, Cassia fistula, Tinospora cordifolia, Butea monosperma and Cedrela toona trees parts were carried out for present study.
Abstract: Physio-chemical analysis of ash of Quercus infectoria, Cassia fistula, Tinospora cordifolia, Butea monosperma and Cedrela toona trees parts were carried out for present study. Atomic Absorption Spectroscopy (AAS) was used for quantitative estimation while chemical methods applied for qualitative estimation of minerals in plants ash. It is found that C. fistula, T. cordifolia, Q. infectoria and C. toona showed maximum concentration of potassium while, B. monosperma showed maximum results with magnesium. (Nature and Science 2010;8(6):88-91). (ISSN: 1545-0740).

34 citations

Journal ArticleDOI
TL;DR: From the seeds of Toona ciliata, besides toonacilin, two novel limonoids: 12-deacetoxytoonaciliin and 6α-acetoxy-14β,15β-epoxyazadirone were isolated as discussed by the authors.

31 citations

Journal ArticleDOI
TL;DR: The difference in meliacin composition and the finding of pregnanes do not seem to favour the affiliation of Toona to the Swietenioideae, and the basis of the induced resistance in the graft against Hypsipyla grandella is clarified.
Abstract: Toona differs from other genera of the Swietenioideae, notably by the absence of limonoids of the mexicanolide group. Our earlier phytochemical studies on T. ciliata, showed the presence of limonoids with intact carbon skeleton, B-seco-limonoids with rings A, C and D intact and five new pregnanes. The latter group of compounds has so far been recorded in four genera of the Melioideae. Thus, the difference in meliacin composition and the finding of pregnanes do not seem to favour the affiliation of Toona to the Swietenioideae. From the stem of Cedrela odorata grafted on T. ciliata var. australis were isolated sesquiterpenes, cycloar- tanes, stigmasterol, campesterol, sitostenona, limonoids, apotirucallane, tirucallanes and catechin. The limonoids were of little value to clarify the basis of the induced resistance in the graft against Hypsipyla grandella. The cycloartanes and catechin could have been translocated from Toona stock to the Cedrela graft.

31 citations

Journal ArticleDOI
TL;DR: Three new ring B-seco limonoids, ciliatonoids A-C (1-3), were isolated from Toona ciliate and structurally characterized by spectroscopic data, X-ray crystallography, and electronic circular dichroism analysis.

28 citations


Network Information
Related Topics (5)
Aphid
11.3K papers, 229.7K citations
83% related
Parasitoid
5K papers, 120.9K citations
82% related
Integrated pest management
10.4K papers, 205.5K citations
80% related
Host (biology)
6.3K papers, 188.8K citations
79% related
Bacillus thuringiensis
9.6K papers, 263K citations
78% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20214
20202
20193
20185
20177
20166