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ANTIBACTERIAL AND PHYTOCHEMICAL PROPERTIES OF Phyllanthus niruri ON SELECTED BACTERIA.

  • Type:Project
  • Chapters:4
  • Pages:53
  • Methodology:Scientific Method
  • Reference:YES
  • Format:Microsoft Word
(Science Lab Technology Project Topics & Materials)
ANTIBACTERIAL AND PHYTOCHEMICAL PROPERTIES OF Phyllanthus niruri ON SELECTED BACTERIA.
                                              ABSTRACT
The antibacterial and phytochemical properties of the leaf, stem and root extracts of Phyllanthus niruri were carried out against Escherichia coli, Pseudomonas aeruginosa, Salmonella sp. and Staphylococcus aureus. The identification of the isolates was done by standard microbiological techniques which include Gram staining and biochemical methods. The various solvents used include: hot water, cold water and ethanol and were used at various concentrations; 250mg/mL, 125mg/mL, 62.5mg/mL, 31.25mg/mL, and 15.625mg/mL. Antibacterial assay showed that hot water extract of   Phyllanthus niruri root had the highest activity against Escherichia coli and Salmonella sp. (32mm), while hot water extracts (leaf) had the highest activity against Staphylococcus aureus (32mm). Ethanol extract (root) has the highest activity against Pseudomonas aeruginosa followed by ethanol extract (stem) and Salmonella sp.(32mm).  Disc diffusion and broth dilution methods were used to determine the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). Ethanol extract (leaf) had MIC 125mg/mL against Escherichia coli, and Staphylococcus aureus while Pseudomonas aeruginosa had 62.5mg/mL. Hot water leaf extract had MIC 31.25mg/mL against Staphylococcus aureus. Ethanol extract (stem) had 250mg/mL against Escherichia coli and Salmonella sp.,62.5mg/mL against Pseudomonas aeruginosa and 125mg/mL against Staphylococcus aureus. Minimum Bactericidal Concentration (MBC) was the same as the Minimum Inhibitory Concentration (MIC).
                                     TABLE OF CONTENTS
Chapter one
Introduction
Literature
Chapter two
Material and Methods
Chapter three
Result
Chapter four
Discussion
Conclusion
Recommendation
CHAPTER ONE
1.0 INTRODUCTION
The use of plants in curing illness is as old as man (Grabley, 1999). Large populations of people especially in the developing world rely on folk medicines for the treatment of common infection as well as persistent diseases (Ndukwe et al., 2005). In recent times, there have been increases in antibiotic resistance strains of clinically important pathogens which have led to the emergence of new bacterial strains that are multi-resistant (Albinu et al., 2004). The non availability and high cost of new generation antibiotic with limited effective span has resulted in increase in morbidity and mortality (William, 2000). It is estimated that today,  plant materials are present in or have provided the models for 50% of western drugs (Robber et al., 1996). Many commercially proven drugs used in modern medicine were initially used in crude form in traditional and folk healing practices or for other purpose that suggest potentially useful biological activity. Traditional healers have long used plants to prevent or cure infectious conditions (Clark, 1995). Consequently, this has led to the search for more effective antimicrobial agents among material of plant origin with the aim of discovering potentially useful ingredients that can serve as a source for the synthesis of new antimicrobial drugs (Pretorius et al., 2003). Plants used as antimicrobial, are effective against infectious diseases while simultaneously mitigating many of the side effects that are often associated with synthetic antimicrobials. They are effective, yet gentle (Gill, 2007). Many vegetables are mainly consumed for their nutritional values without much consideration foor their medicinal importance (Aletor and Adeogun, 1995).
The genus Phyllanthus refers to leaves and flowers and is one of such medicinal plants and is still investigated for further findings. The flowers as well as the fruits seem to become one with the leaf. It is a wide spread tropical rainforest plant commonly found in coastal areas.
It comprises of 600-700 species with minor distinguishing features among them.  Phyllanthus amarus, Phyllanthus urinaria  and Phyllanthus niruri are the most employed species. Phyllanthus niruri belongs to the family Phyllanthacae, genus, Phyllanthus and specie niruri. Phyllanthus niruri has its common name stone-breaker (because of its strong root). It is commonly called “ENYIKWONWA” (the same family with ugba) by the Igbo’s in Nigeria. The stem and root have been reported along with the leaves to be of medicinal value (WHO, 2001). The latex form leaves has been used as antimalaria and for the treatment of infections of bacterial origin (Farombi, 2003).
Aims and Objectives
The aims and objectives of this work are to:
Determine the antibacterial activities ofPhyllanthus niruri
Determine the chemical constituents that may be present in the extract (ethanol, hot water and cold water).
Determine the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of  Phyllanthus niruri extracts
LITERATURE REVIEW
1.2  Overview of  Phyllanthus niruri
Phyllanthus niruri is an annual herb which grows in the wild after first showers of monsoon in states of india. It is a wide spread tropical plant commonly found in coastal areas. It grows about 30-60cm in height. In the wild, it is found growing along roadside, in street corners and dumps of building materials. It is also a field weed which is found proliferating throughout tropical and sub-tropical regions of Asia, America and China. The epithet niruri was assigned to this plant by Swedish naturalist Charles Von Linee. It is reported that this plant is known and used since more than 2,000years. It may also grow from 20-90cm more in height.
1.3  Physical Description
The annual herb Phyllanthus niruri is best known by the common names stone breaker (because of its strong root), black chanca piedra, quebra wind, child  pick-a-flower, carry me seed, but has many other common names in assorted languages, including dukong anak, dukong-dukong anak, amin buah, rami buah,  turi hutan and bhuianla. Taxonomically, the annual herb belongs to
Family- phyllanthaceae
Order-   malpighiales
Class-    magnoliophyta
Division- magnoliophyta
It is quite glaborous; stem often branched at the base. The leaves are green, oblong, obtuse, numerous and in pairs. The flowers are yellow, axiliary, and numerous. The male flowers are one to three (1-3) whereas, female flowers are solitary. The fruits are globuse, depressed. Capsules and seeds are pale brown in colour.
1.4 Uses of Phyllanthus niruri
Phyllanthus niruri blocks DNA polymerase, the enzyme needed for hepatitis B virus to reproduce. It also prevents jaundice, diabetes, dyspepsia, ulcers, sores, swellings, opthalmia and chronic dysentery (Harnett et el., 2000). It also mitigates diarrhoea. The whole plant is useful for the treatment of some forms of gonorrhoea and menorrhagia, dropsy and other genito-urinary infections of similar type (Olukoya et al., 2000). A poultice of the leaf mixed with salt cures itching and other skin infections. The root juice mixed with sugar is instilled into the nostrils for hiccups; it is also useful as an adjuvant in the treatment of dysuria. It is bitter, astringent, cold, anti-inflamatory and useful as well in treatment of liver disorders, cough, asthma, jaundice, spleen disorder. It may help decrease the amount of hepatitis B virus found in the blood stream (Yiu et al., 1994).
ANTIBACTERIAL AND PHYTOCHEMICAL PROPERTIES OF Phyllanthus niruri ON SELECTED BACTERIA.

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Details

Type Project
Department Science Lab Technology
Project ID SLT0040
Price ₦3,000 ($9)
Chapters 4 Chapters
No of Pages 53 Pages
Methodology Scientific Method
Reference YES
Format Microsoft Word

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    Details

    Type Project
    Department Science Lab Technology
    Project ID SLT0040
    Price ₦3,000 ($9)
    Chapters 4 Chapters
    No of Pages 53 Pages
    Methodology Scientific Method
    Reference YES
    Format Microsoft Word

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