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| Ameer,O.Z.; Salman,I.M.; Siddiqui,M.J.A.; Yam,M.F.; Sriramaneni,R.N.; Sadikun,A.; Ismail,Z.; Shah,A.M.; Asmawi,M.Z.. |
| We investigated the vascular responses and the blood pressure reducing effects of different fractions obtained from the methanol extract of Loranthus ferrugineus Roxb. (F. Loranthaceae). By means of solvent-solvent extraction, L. ferrugineus methanol extract (LFME) was successively fractionated with chloroform, ethyl acetate and n-butanol. The ability of these LFME fractions to relax vascular smooth muscle against phenylephrine (PE)- and KCl-induced contractions in isolated rat aortic rings was determined. In another set of experiments, LFME fractions were tested for blood pressure lowering activity in anesthetized adult male Sprague-Dawley rats (250-300 g, 14-18 weeks). The n-butanol fraction of LFME (NBF-LFME) produced a significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Loranthus ferrugineus; N-butanol fraction; Cardiovascular effect; Aortic ring; Vasorelaxation; Terpenoid. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000200009 |
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| YANG,Yi-Ni; LIANG,Miao; YANG,Yan; ZHENG,Fu-Ping; WANG,Xing-Ping; YU,Ai-Nong. |
| Abstract This study optimized using a headspace solid-phase microextraction (HS-SPME) method for extracting volatile aroma compounds, terpenoids in particular, from Litsea mollis Hemsl. immature fruit (LMIF). Gas chromatography-mass spectrometry was used to separate and identify volatile terpenoids in LMIF. The types of SPME fiber coating, salt addition, and desorption time were optimized by single factor-experiments to determine the range of extraction temperature. Built on insights from the single factor-experiments, the response surface methodology was further used to optimize the extraction temperature, extraction time, and equilibrium time of HS-SPME. The results showed that the optimal HS-SPME conditions for extracting volatile terpenoids from LMIF... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litsea mollis Hemsl.; Solid-phase microextraction; Response surface methodology; Terpenoid; Citral; Aroma compound. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007202 |
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