Antimicrobial activity of medicinal plants pdf 2010




















Subculturing of bacterial strains Nutrient broth was used for subculturing of bacterial strains. Collection of plant material and preparation of powder Plant materials from three medicinal plants including B. Extraction procedure and antibacterial activity of plant extracts The powder of plants was processed for cold and hot water extraction.

Data analysis All the experiments were independently repeated three times, and average zone of inhibition of test extracts relative to negative control was calculated using Microsoft Excel software.

Results In the present study, antibacterial activity of B. Table 1. Comparison of cold and hot water plant extracts against pathogenic bacteria. Open in a separate window. Discussion Global burden of infectious diseases caused by bacterial agents is a serious threat to public health [ 11 ].

Conclusions It was investigated that B. References 1. Plant extracts: search for new alternatives to treat microbial diseases. Curr Pharm Biotechnol. Antimicrobial activity of ethanolic and aqueous ex-tracts of medicinal plants against waste water pathogens. Antibiotic resistance as a global threat: evidence from China, Kuwait and the United States. Global Health.

Antimicrobial agents from plants: antibacterial activity of plant volatile oils. J Appl Microbiol. Antimicrobial, cytotoxicity and phytochemical screening of Jordanian plants used in traditional medicine. Antifungal activity of Brazilian medicinal plants involved in popular treatment of mycoses. J Ethnopharmacol. Antioxidant and antimicrobial activity of Foeniculum vulgare and Crithmum maritimum essential oils. Planta Med. Paterson DL.

Impact of antibiotic resistance in gram-negative bacilli on empirical and definitive antibiotic therapy. Clin Infect Dis. Cheesbrough M. Medical Laboratory Manual for Tropical Countries. Oxford, United Kingdom: Oxford, Publishers; Microscopic examination of specimens; pp. Limited, Bangladesh The methanol extract of P. The N-hexane extract University, Bangladesh of A.

A lot of differences found and showing Correspondence: Abul Hasnat Muhammad Solaiman, anti-oxidant activity of different solvent extracts of different plant species. This antimicrobial ability bangladesh council of scientific and industrial research; INFS, institute of plant extract estimated by any of the following three methods; viz. But there is no standardized method for antimicrobial butanol screening. However, a great number of factors viz. Now medicinal plants intended to prevent the presumed deleterious effects of free radicals are gaining more importance in pharmaceutical industries for the in the human body, and to prevent the deterioration of fats and other preparation of new phytomedicines.

In both cases, there is a preference for first stage of antimicrobial drug research to ascertain the susceptibility antioxidants from natural rather than from synthetic sources. Herbal industries is therefore a parallel increase in the use of methods for estimating always use the crude extracts of medicinal plants for their medicine the efficiency of such substances as Antioxidants5,6 because these and beautifying constituents.

In most cases, they use medicinal plant compounds in food play an important role as a health-protecting crude extract without confirming or validating their level of toxicity factor and the huge number of medicinal plants also contains the and active ingredient.

However, it is necessary to know which antioxidant compound for investigation. One such method that is compound is specifically responsible for showing specific activity.

Several plant species have already There are some common local plants those may have significant been reported for their antioxidant activities in human body. We used antibiotic activity which are commonly used in herbal industries in number of medicinal plants of Bangladesh in this experiment Figure the country.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and build upon your work non-commercially. It is said to have anti- activities like liver protection. Several studies have been conducted bacterial, antiseptic and analgesic qualities, the bark supposedly cures on the cellular processes and targets modulated by Andrographolide colds, the juice from its leaves is good for treating malaria and for treatment that inhibited the proliferation of different tumor cell lines, skin diseases, while chewing young leaves alleviates toothache, and representing various types of cancers.

In one Chilean study, the herb the interior of the fruit can disinfect wounds. The The Aloe vera gels stimulate cell growth and restore damaged primary use of Datura is as a hallucinogenic and intoxicant, though skin. It is widely used as moisturizing the skin because of its water it does have medicinal uses.

The most common medicinal uses for holding capacity. Aloe vera juice has been considered as the factor of Datura in these systems are for skin conditions, anxiety disorders, and relieving many gastrointestinal irritations and may protect the mucous respiratory ailments, along with a litany of other conditions.

The seeds membrane of the stomach. It is also plants. Previous phytochemical investigation of the plant revealed the prescribed to relieve thermal burn, sunburn and wound healing19 and presence of chemical constituents such as flavones, flavonoids, tannin, a lot of researches suggest that Aloe gel can enhance immune system carotene, carotenoids, ascorbic, tartaric, malic and pectic acids, gum, of the body. Several alkaloids of Adhatoda leaves has also been reported. The plant is also used cooling medicine which is well known to be used for the remediation against various chest ailments.

The plant causes a slight inhibition of of nasal polypus, various cancers of breast, liver, intestine, spontaneous movements of nerve muscle. The constituents have the stomach, kidneys and tongue. Graceful potentiality of broncho-dilating activity and the oil also showed anti- Pouzolzbush; Urticaceae is extensively grown in Bangladesh.

The insects and juvenile hormone mimicking activity. Leaf juice is used as Scientific evidence suggests that antioxidants reduce risk for galactagogue. Poultice of the herb is applied to sores, boils and to chronic diseases including cancer and heart disease. Most of the relieve stomachache. The main characteristic of an pectic acids, gum, minerals and their salts. Highly reactive free radicals and oxygen species are present in biological systems from a wide variety of sources.

The DPPH method is described as a simple, rapid and convenient method independent of sample polarity for screening of many samples for radical scavenging activity. Kalmegh Andrographis paniculata Nees, king of bitter or Moha- Test plant materials tita family: Acanthaceae is an important and well known medicinal Fresh samples were collected from the Medicinal germplasm plant in the world.

In Bangladesh, there are more than 20 species and horsetail Equisetum debile , leaf of Iron-wood tree Memecylon 8 varieties of the genus Andrographis available,17 including A.

Only a few species are medicinal, of which A. Since ancient times, Kalmegh is used in and leaf of Kalmegh Andrographis paniculata were taken for the traditional Siddha and Ayurvedic systems of medicine as well as in investigation. The details of tested plant materials are presented in tribal medicine in India and some other countries for multiple clinical Table 1.

Antimicrobial and antioxidant activity analysis of some medicinal plants of Bangladesh. Adv Plants Agric Res. DOI: Then the samples were blended by a blender machine Moulinex, France. Dried powders of different treatments were Test organisms dissolved in sample bottles with different solvents for 3days. Each day each bottle was shacked well and filtered with a filter paper Clinical isolates of the microorganisms were used for antimicrobial Millipore, Germany.

The filtrate was then evaporated by a rotary test Table 2. A second block of studies focuses on the natural flora of a specific region or country; the third relevant group of papers is made up of specific studies of the activity of a plant or principle against a concrete pathological microorganism. Some general considerations must be established for the study of the antimicrobial activity of plant extracts, essential oils and the compounds isolated from them.

Of utmost relevance is the definition of common parameters, such as plant material, techniques employed, growth medium and microorganisms tested. Due to enormous therapeutic possibilities buried in medicinal plants, there is a need for more research into unique fingerprints and novel compounds that can provide cure to the neglected tropical diseases NTDs of humans and animals facing Africa, especially Nigeria.

Abstract Despite the success of antibiotic discovery, infectious diseases remain the second leading source of death worldwide, while the resistance to antibiotics is among the significant problems in the twenty-first century.



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