Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3823

Table of Content: 18 May, 2010; 4(10)

May 2010

New progress in biocatalysis and biotransformation of flavonoids

Flavonoids have many beneficial health effects, such as antimicrobial, antioxidant, antiviral, antiplatelet, anti-ischemic, antitumor, anti-inflammatory, antiallergic, estrogenic, and radical-scavenging activity. However, their practical applications are often strongly limited due to low solubility and stability in hydrophilic media. Biocatalysis and biotransformation of flavonoids have been introduced to modify their...

Author(s): Anming Wang, Fangkai Zhang, Lifeng Huang, Xiaopu Yin, Haifeng Li, Qiuyan Wang, Zhaowu Zeng and Tian Xie

May 2010

Determination of the vegetative and reproductive characteristics of valerian (Valeriana officinalis L.) under sowing dates and planting densities in Iran

This study was conducted as split-plot field experiment in a randomized complete block design with four replications for one year planting. The main factors were the sowing dates (10th August, 1st September and 20th September) and sub factors were the planting densities (4, 8 and 12 plants/m2). The results showed that sowing date and planting density significantly affected grain yield, essential oil...

Author(s): Elham Morteza, Gholam Ali Akbari, Sayed Ali Mohammad Modares Sanavi and Hossein Aliabadi Farahani

May 2010

Pollen morphological diversity in selected species of Persicaria Mill. (Family; Polygonaceae)

Fifteen species of the genus Persicaria Mill. were subjected to palynological studies using light microscopy (LM) and scanning electron microscopy (SEM). Aperture number and exine sculpturing were found to be most reliable characters for the distinction of investigated taxa. On the basis of aperture number two main types of pollen were distinguished viz; tricolpate Capitata type and pantoporate Persicaria...

Author(s): Ghazalah Yasmin, Mir Ajab Khan, Nighat Shaheen, Muhammad Qasim Hayat, Muhammad Zafar and Mushtaq Ahmad

May 2010

Chemical composition and biological activities of a new essential oil chemotype of Tunisian Artemisia herba alba Asso

The aim of the present study was to investigate the chemical composition,antioxidant, angiotensin I-converting enzyme (ACE) inhibitory, antibacterial and antifungal activities of the essential oil of Artemisia herba alba Asso (Aha), a traditional medicinal plant widely growing in Tunisia. The essential oil from the air dried leaves and flowers of Aha were extracted by...

Author(s): Sami Zouari, Nacim Zouari, Nahed Fakhfakh, Ali Bougatef, M. A. Ayadiand Mohamed Neffati

May 2010

Antioxidant activities, flavonoids, ascorbic acid and phenolic content of Malaysian vegetables

Vegetable extracts of nine Malaysian vegetables; Curcuma domestica, Kaempferia galanga, Piper betel, Piper sarmentosum, Polygonum minus, Cosmos caudatus, Centella asiatica, Hydrocotyle bonariensis and Barringtonia racemosa were screened for their antioxidant properties. Total antioxidant activities of leaf or rhizome extract were assayed using different methods; ferric reducing...

Author(s): Yusuf Sumazian, Ahmad Syahida, Mansor Hakiman and Mahmood Maziah

May 2010

Anticancer activity of guava (Psidium guajava L.) branch extracts against HT-29 human colon cancer cells

Natural products have recently become the focus of increased research interest due to their potential pharmacological activities. Therefore, we established a program to screen natural products for cytotoxic activity using the MTT reduction assay system to test HT-29 human colon cancer cells. During the course of screening, we found that the acetone extracts of guava (Psidium guajava L.) branch (GBA) had...

Author(s): Sang-Bong Lee and Hae-Ryong Park

May 2010

Response of ginsenoside Rb1 production in Panax ginseng cells to Amaranthus tricolor cells

Ginsenoside Rb1 is one of the principal pharmacological ingredients of ginseng. The effects of Amaranthus tricolor suspension cells, containing high level of squalene, on ginsenoside Rb1 production by Panax ginseng suspension cells were investigated. The maximum Rb1 content (51.5 ± 3.1 mg/L) reached during the next 4 d after A. tricolor cells (16 g...

Author(s): Cai-Jun Yue, Yan-Ping He, Zhong-Jing Zang and Yu-Dong Cui

May 2010

Optimization of DNA isolation, ISSR-PCR system and primers screening of genuine species of rhubarb, an important herbal medicine in China

To estimate genetic diversity and to authenticate the three endangered and official genuine species, Rheum officinale, Rheum palmatum and Rheum tanguticum, of herbal medicine of rhubarb, the optimization of DNA isolation methods including modified CTAB and isolation kit, PCR system of inter-simple sequence repeats (ISSRs) and primers screening were investigated in the present work. Modified CTAB was...

Author(s): Xu-Mei Wang

May 2010

Evaluation of anti-inflammatory effect of Zosima absinthifolia and deltoin

In this study, n-Hexane extracts prepared from aerial part of Zosima absinthifolia(ZAA) and the root of Z. absinthifolia (ZAR) (Umbelliferae) as well as deltoin were evaluated for their anti-inflammatory activity using the carrageenan-induced rat paw oedema test. The anti-inflammatory activity of Z. absinthifolia was not found to be significantly different at doses of 25 and 50 mg/kg. However,...

Author(s): Özlem Bahadir, Gülçin Saltan ÇitoÄŸlu and Hanefi Özbek

May 2010

The HDR gene involved in the TIA pathway from Rauvolfia verticillata: Cloning, characterization and functional identification

1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate reductase (HDR, EC catalyzes the last reaction of the methylerythritol phosphate (MEP) pathway. The full-length cDNA sequence of HDR was cloned and characterized from terpenoid-indole-alkaloid-producing Rauvolfia verticillata. The new cDNA was named as RvHDR and submitted to GenBank® to be assigned with an accession number: EU034699. The...

Author(s): Jinwu Chen, Wanhong Liu, Min Chen, Guijun Wang, Meifang Peng, Rong Chen, Chunxian Yang, Xiaozhong Lan, Xingjia Ming, Minghsiun Hsieh and Zhihua Liao

May 2010

The investigation of phenolic compounds and technological properties of Leonurus, Crataegus and Ginkgo extracts

The aim of this study was to prepare the formulation of herbal extract mixture in ratio - Ginkgo:Leonuri:Crataegi extracts (1:5:6) with excellent technological properties and identify the phenolic compounds, flavones and flavonols. The flowability study showed that excipients (Prosolv HD90, mannitol+colloidal silicon dioxide and microcrystalline cellulose+colloidal silicon dioxide) reduced powder dustiness and...

Author(s): Jurga Bernatoniene, Zivile Petkeviciute, Zenona Kalveniene, Ruta Masteikova, Gailute Draksiene, Jan Muselik, Ruta Bernatoniene, Robertas Lazauskas and Arunas Savickas

May 2010

Analgesic and anti-inflammatory properties of Oxyanthus unilocularis

Oxyanthus unilocularis is a Rubiaceae used in traditional medicine for the treatment of arthritis and pain. The purpose of this study was to evaluate the antinociceptive and anti-inflammatory properties of O. unilocularis.Antinociceptive properties of both the leaf and stem bark extracts of this plant were studied using the pressure-induced pain, writhing, tail flick and formalin test methods....

Author(s): N. Benedicta Nkeh-Chungag, P. C. Mxolisi Bekwa, J. Eugene Ndebia, Maurice Kayo, T. Joseph Mbafor and E. Jehu Iputo

May 2010

Caffeic acid and its derivatives as heme oxygenase 1 inducer in Hep G2 cell line

Effect of 10, 50 and 100 µg/ml caffeic acid and its esters and amides derivatives on heme oxygenase 1 (HO-1) activity induction in Hep G2 cell line was studied. It was found that caffeic acid ester derivatives could induce HO-1 activity more than amide derivatives. The longer side chain and aromatic side chain affected HO-1 activity. At 10 µg/ml concentration, phenylmethyl 1-(3’,...

Author(s): Churdsak Jaikang and Chaiyavat Chaiyasut

May 2010

Antioxidant and toxicity activities of Artocarpus lakoocha Roxb. heartwood extract

The antioxidant activity of Artocarpus lakoocha heartwood extract was investigated from ethanol extraction by 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) decolorization, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and H2O2 scavenging assay. Polyphenolic; total phenolic, flavonoids and tannins were measured. Anti-oxidative stress was studied in AAPH-oxidized blood and...

Author(s): Supawatchara Singhatong, Donrawee Leelarungrayub and Chaiyavat Chaiyasut

May 2010

The effect of propolis on microbial vitality and oxygen consumption

The aim of this study was to investigate the effect of different concentrations of ethanolic extract of propolis (EEP) on oxygen consumption and vitality of gram-positive, Gram-negative bacteria, and yeast. Our investigations showed that EEP at the concentration of 65 - 1,300 mg ml-1 of phenolic compounds (PC) inhibited oxygen consumption rate of Bacillus subtilis by 26 - 81%, and ofCandida albicans...

Author(s): Daiva Majiene, Irena Macioniene, Lolita Kursvietiene, Jurga Bernatoniene, Julija Davalgiene, Robertas Lazauskas and Arunas Savickas

May 2010

Chemical composition and antimicrobial activity of essential oils isolated from Algerian Juniperus phoenicea L. and Cupressus sempervirens L.

The chemical composition of essential oils isolated from the leaves by steam-distillation of Algerian Juniperus phoenicea L. and Cupressus sempervirens L. were analyzed by GC-MS. The oils were predominantly composed of monoterpene hydrocarbons (72.9 and 75.7%), with α-pinene as major constituent (34.5 and 60.5%). β-phellandrene (22.4%) and α-Terpinyl acetate (14.7%) were the second...

Author(s): Khadidja Mazari, Nassima Bendimerad, Chahrazed Bekhechi and Xavier Fernandez

May 2010

Phytochemical and chemical composition of Combretum zenkeri leaves

Studies on the phytochemical, mineral, proximate and vitamin content of the leaves of Combretum zenkeri were carried out. The quantitative phytochemical composition shows that it contains 10.5 ± 1.31 mg/100 g saponin, 7.90 ± 0.10 mg/100 g alkaloid, 4.2 ± 0.10 mg/100 g flavonoid, 31.86 ± 2.10 mg/100 g tannin and 20.088 ± 0.91 mg/100 g cyanogenic glycosides. It contains...

Author(s): C. O. Ujowundu, O. E. Okafor, N. C. Agha, L. A. Nwaogu, K. O. Igweand C. U. Igwe

May 2010

Acute and subchronic toxicity evaluation of the hydroethanolic extract of mangosteen pericarp

In this study, we examined the effects of a hydroethanolic extract from the fruit pericarp of mangosteen, that contained epicathechin based tannins as a major constituent, upon acute and subchronic treatments to experimental animals.  Intragastric administration of this extract to Swiss albino mice at a single dose of 2 and 5 g/kg body weight produced no toxicity signs during 14 days of observation.  For the...

Author(s): Nongporn Hutadilok-Towatana, , Wantana Reanmongkol, Chatchai Wattanapiromsakul and Ruthaiwan Bunkrongcheap

May 2010

Evaluation of superoxide radical scavenging capacity and reducing power of areca flower extracts

Areca is a traditional Chinese medicinal plant used to treat a variety of diseases. The antioxidant capacities of areca flower extracts were evaluated by using superoxide radical scavenging activity and reducing power, total phenolic content and total flavonoid content were also detected. In all the tested models, the areca flower extracts showed their ability to scavenge superoxide radical and reducing power in a...

Author(s): En-Shyh Lin and Chia-Ching Li

May 2010

Effects on exercise endurance capacity and antioxidant properties of astragalus membranaceus polysaccharides (APS)

Astragalus membranaceus is a famous Chinese medicinal herb. Polysaccharides are the most important functional constituent in Astragalus membranaceus. In the present study, the effects of Astragalus membranaceus polysaccharides (APS) on exercise endurance capacity were evaluated in mice using swimming exercise. The antioxidant properties of APS were also investigated through the 1,1- diphenyl-2-picrylhydrazyl (DPPH)...

Author(s): Sun Hao and Wang Zhaobao