Chemical constituents of Harpullia pendula. II. Further constituents of the bark and leaves

1977 ◽  
Vol 30 (6) ◽  
pp. 1397 ◽  
Author(s):  
RF Cherry ◽  
PW Khong ◽  
KG Lewis
Keyword(s):  
Chemical Constituents ◽  
Acetone Extract ◽  
Light Petroleum ◽  
Ether Extract

Further examination of the bark of Harpullia pendula has led to the isolation, from the light petroleum extract, of stigmasterol; from the ether extract, of a new compound, 15α,16α,22α,28-tetrahydroxy-olean-12- en-3-one, together with the known triterpenes A1-barrigenol, camelliagenin A and 22α-hydroxyerythrodiol. From the acetone extract of the bark and the leaves quebrachitol has been obtained.

scholarly journals Preliminary Phytochemical Appraisal of Selected Medicinal Plants

2021 ◽  
Vol 11 (2-S) ◽  
pp. 56-58
Author(s):  
E Mohan ◽  
S Suriya ◽  
S Shanmugam ◽  
CP Muthupandi ◽  
K Rajendran
Keyword(s):  
Chemical Constituents ◽  
Petroleum Ether Extract ◽  
Acetone Extract ◽  
Acorus Calamus ◽  
Ether Extract ◽  
Solanum Torvum ◽  
Plant Parts ◽  
Phytochemical Constituents ◽  
Pharmacologically Active ◽  
Senna Alata

Preliminary phytochemical tests played a significant role in finding and locating chemical constituents which are source of pharmacologically active principles. By consider the medicinal importance of tuber of Acorus calamus, flower of Senna alata and fruit of Solanum torvum, the present study was designed to screen the phytochemical constituents present in such plant parts preliminarily. The phytochemical analyses were conducted by employing standard methods to detect the presence/absence of alkaloids, carbohydrates, flavonoids, glycosides, phenols, phytosterols, proteins, saponins and tannins. The results of present study revealed that alkaloids were found to be present in all the three plants analyzed and all the three solvents extracted, whereas, glycosides and phenols were absent. The acetone extract of Acorus calamus and Solanum torvum showed the presence more number of phytochemicals (4 each) and petroleum ether extract of Senna alata and Solanum torvum revealed the presence of only one compound. The potential active principles of the detected compounds should be quantified and pharmacologically evaluated. Keywords: Preliminary phytochemical analyses, Acorus calamus tuber, Senna alata flower, Solanum torvum fruit.

Biochemical Composition, Antibacterial and Anti-Biofilm Activities of Indian Medicinal Plants

2020 ◽  
Vol 18 ◽  
Author(s):  
Mulugeta Mulat ◽  
Fazlurrahman Khan ◽  
Archana Pandita
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plants ◽  
Pathogenic Bacteria ◽  
Chemical Constituents ◽  
Multidrug Resistant ◽  
Chloroform Extract ◽  
Acetone Extract ◽  
Biologically Active ◽  
Ocimum Sanctum ◽  
Agar Disc

Background: Medicinal plants have been used for treatments of various health ailments and the practices as a remedial back to thousands of years. Currently, plant-derived compounds used as alternative ways of treatment for multidrug-resistant pathogens. Objective: In the present study, various parts of six medical plants such as Solanum nigrum, Azadirachta indica, Vitex negundo, Mentha arvensis, Gloriosa superba, and Ocimum sanctum were extracted for obtaining biological active constituents. Methods: Soxhlet method of extraction was used for obtaining crude extracts. Agar disc diffusion and 96-well plate spectroscopic reading were used to detect the extract’s antibacterial and antibiofilm properties. Results: The obtained extracts were tested for antimicrobial and antibiofilm properties at 25 mg/mL concentrations. Maximum antibacterial activity was observed in O. sanctum chloroform extract (TUCE) against Staphylococcus aureus (24.33±1.52 mm), S. nigrum acetone extract (MAAC) against Salmonella Typhimurium (12.6 ± 1.5 mm) and Pseudomonas aeruginosa (15.0 ±2.0 mm). Only TUCE exhibited antibacterial activity at least a minimum inhibitory concentration of 0.781 mg/mL. Better antibiofilm activities were also exhibited by petroleum extracts of G. superba (KAPE) and S. nigrum (MAPE) against Escherichia coli, S. Typhimurium, P. aeruginosa and S. aureus. Moreover, S. nigrum acetone extract (MAAC) and O. sanctum chloroform extract (TUCE) were showed anti-swarming activity with a reduction of motility 56.3% against P. aeruginosa and 37.2% against S. aureus. MAAC also inhibits Las A activity (63.3% reduction) in P. aeruginosa. Conclusion: Extracts of TUCE, MAAC, MAPE, and KAPE were exhibited antibacterial and antibiofilm properties against the Gram-positive and Gram-negative pathogenic bacteria. GCMS identified chemical constituents are responsible for being biologically active.

Study on Plant Growth Regulation Activity of the Low Polar Fractions from Mikania micrantha H.B.K. on Phaseolus radiaus

2013 ◽  
Vol 690-693 ◽  
pp. 1386-1389
Author(s):  
Rui Shi ◽  
Biao Li ◽  
Min Ye ◽  
Yan Zhao ◽  
Li Ming Fan ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Growth Regulation ◽  
Chemical Constituents ◽  
Petroleum Ether Extract ◽  
Chemical Compounds ◽  
Ether Extract ◽  
Active Fraction ◽  
Strong Activity ◽  
Mikania Micrantha ◽  
Plant Growth Regulation

Some chemical compounds in petroleum ether extract ofMikania micranthaH.B.K. can strongly influence seedling growth ofPhaseolus radiaus. In this study, we provide evidence that the chemical compounds in active fraction chromatographed on normal phase silica gel columns from petroleum ether extract ofM. micranthahave strong activity to promoteP. radiaustaking root. But meanwhile, these chemical compounds could be inhibitors forP. radiausroot growth. Two main chemical constituents, α-Bisabolol and Eudesma-5,11(13)-dien-8,12-olide, in the active fraction were confirmed by GC-MS analysis.

Chemical Constituents of Euphorbia marschalliana Boiss

2004 ◽  
Vol 59 (1-2) ◽  
pp. 15-18 ◽  
Author(s):  
Amir Reza Jassbi ◽  
Simin Zamanizadehnajari ◽  
Satoshi Tahara
Keyword(s):  
Chemical Constituents ◽  
Acetone Extract ◽  
Aerial Parts ◽  
First Time

Acetone extract of aerial parts of Euphorbia marschalliana collected from Iran has been subjected to different chromatography techniques for fractionation and purification. The stereo- structures of the myrsinol esters 15-O-acetyl-3-O-propionyl-5-O-butanoyl-7-O-nicotinoylmyrsinol (1) and 15-O-acetyl-3,5-O-dibutanoyl-7-O-nicotinoylmyrsinol (2) have been probed using ROESY spectroscopy and modified for the stereochemistry at C-6, C-12 and C-13. β-Sitosterol (3), 29-norcycloart-5-ene (4), 5,8-lanostadiene-3β-ol (5), 3β,24(S),25-trihydroxycycloartane (6), 3β,24(R),25-trihydroxycycloartane (7) and 24-methylenecycloartan-3β-ol (8) were identified for the first time in this plant.

Chemical constituents, antifungal and antioxidative potential of Foeniculum vulgare volatile oil and its acetone extract

Food Control ◽  
2006 ◽  
Vol 17 (9) ◽  
pp. 745-752 ◽  
Author(s):  
Gurdip Singh ◽  
Sumitra Maurya ◽  
M.P. de Lampasona ◽  
C. Catalan
Keyword(s):  
Chemical Constituents ◽  
Volatile Oil ◽  
Acetone Extract ◽  
Foeniculum Vulgare

Chemical Constituents of the Lichen Cladina macaronesica

1991 ◽  
Vol 46 (1-2) ◽  
pp. 12-18 ◽  
Author(s):  
Antonio G . González ◽  
Jaime Bermejo Barrera ◽  
Elsa Ma Rodríguez Pérez ◽  
Consuelo E. Hernández Padrón
Keyword(s):  
Natural Products ◽  
Phenolic Compounds ◽  
Silver Nitrate ◽  
Silica Gel ◽  
Column Chromatography ◽  
Chemical Constituents ◽  
Usnic Acid ◽  
Acetone Extract ◽  
First Time

Column chromatography of the acetone extract of the lichen Cladina macaronesica (Sephadex LH-20, silica gel and silver nitrate-im pregnated silica gel) afforded eight triterpenes identified by chemical and spectral m eans. α-Amyrenone, lupenone, taraxerol, taraxerone and /so-arborinol acetate were isolated for the first time from lichens and (-)-usnic acid and five mononuclear phenolic compounds were also obtained, four for the first time as natural products. The possible transformation of perlatolic acid into these phenolic compounds is briefly outlined.

Chemical Constituents Analysis of Petroleum Ether Extract from Xylaria striata by GC-MS

2017 ◽  
Vol 19 (5) ◽  
pp. 1-7
Author(s):  
Luo Jing ◽  
Yang Wei ◽  
Wu Jiaoqi ◽  
Ren Qingyuan ◽  
He Xinsheng ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Chemical Constituents ◽  
Petroleum Ether Extract ◽  
Ether Extract

Comparative performance of five genotypes of Indonesian large ruminants. 3. Growth and development of carcass tissues

1986 ◽  
Vol 37 (4) ◽  
pp. 435 ◽  
Author(s):  
JB Moran ◽  
JT Wood
Keyword(s):  
Growth And Development ◽  
Chemical Constituents ◽  
Subcutaneous Fat ◽  
Allometric Equation ◽  
Carcass Quality ◽  
Ether Extract ◽  
Comparative Performance ◽  
Protein Retention ◽  
Data Rates ◽  
Swamp Buffalo

The chemical constituents of carcasses from 105 serially slaughtered bulls comprising Madura, Ongole, Bali, Grati (Friesian cross) and swamp buffalo were determined from ground rib joints from all animals and ground carcass sides from 48 bulls. Other carcass quality attributes were also assessed on each carcass. The bulls had previously been fed diets containing 85 or 30% concentrate for up to 280 days. Huxley's allometric equation was used in its logarithmic form as the basis for covariance analyses of the data. Rates of fattening on the 85% concentrate.diet, in decreasing order, were buffalo and Bali, Madura and Ongole, then Grati. There was a genotype by diet interaction for carcass protein, ether extract and energy in that the Madura bulls produced fatter carcasses on the high-concentrate but the leanest carcasses on the high-roughage diets. Buffalo carcasses were low scoring with small rib eye areas and high levels of subcutaneous fat, whereas the highest-scoring carcasses were those from Madura and Bali bulls. Genotype differences in daily carcass protein retention are discussed in relation to rate of maturing and also dietary influences.

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