Title Antimicrobial properties in different type of plants. Introduction A substance that kills or prevents the growth of microorganisms for example bacteria‚ fungi or protozoans is called an antimicrobial. This substance has 2 major roles which are to either kill microbes (microbiocidal) or prevent the growth of microbes (microbiostatic). Disinfectants are antimicrobial substances used on non-living objects outside the body. This substance included antibiotics‚ antifungals‚ antiprotozoals and
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REVIEW OF RELATED LITERATURE This investigatory project aims to make use of rambutan peeling extracts that is high in phenolic compounds such as tannin and saponin that exhibits antioxidant activity and antibacterial activity against pathogenic bacteria. Although the seeds contain such compounds the peeling exhibit greater amount of the said compounds. Rambutan is a very popular fruit cultivated in the Philippines and it is eaten in large amounts. The rambutans rind is quickly discarded and thrown
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has be highlighted as very important‚ more so than it used to be as more and more people are suffering from heart diseases as a result of fatty deposits building up. Staying on the topic of food‚ the process of fermentation requires the use of bacteria which is a microbe. A big example of this is the production of bread which uses yeast to make the bread rise. This works as it is aerobic respiration so gives off carbon dioxide‚ making the bread rise. Another use of yeast is in anaerobic respiration
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to day is the term used to refer to antibacterial which are only indicated for the treatment of bacterial infections‚ there is more than 15 classes of drugs that differ in chemical structure and activity against bacteria. A certain antibiotics may be effective against one or various bacteria. These drugs should not be used and are not effective against viruses‚ which are the main agents of community infections (colds‚ flu). It is however necessary antibiotics in the case of bacterial infections
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that a person needs to follow when preparing food to prevent food poisoning. Food poisoning has become more popular due to fast food restaurants. It spreads faster because of how common it has become to go out and eat. It is too late to stop the bacteria from spreading after the contaminated food is sent to the restaurants and spread throughout the community (“Food
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and classify bacteria‚ it is a differential stain that allows you to classify bacteria as either gram-positive or gram-negative. The foloowing is a breif summerary of the gram staining procedure. Apply the primary stain Apply Mordant Apply decolorizing agent Apply the secondary stain Bacteria that lose color easily after decolorization are referred to as gram-negative‚ and bacteria that retain the color from the primary stain is called gram-positive. Bacteria stain differently
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Causes and spread of infection. Bacteria. These organisms are made up of just one cell. They have the power to divide so can multiply on their own. Some bacteria are harmless and can be of use in the aid of digestion and are found in the intestines. Other bacteria can be the cause of diseases. These bacteria have to find a way in to the body to be of harm and can make their way through the skin or be digested and attack our immune system. Viruses. These micro-organisms are very tiny. They invade
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ABSTRACT: This project will show how strong certain bacteria that are commonly found in biofilms attract to Pseudomonas aeruginosa through a capillary tube. It will test ten bacteria to see which bacteria have more chemoattractants with Pseudomonas aeruginosa . These bacteria are all motile‚ so to come together to form a biofilm‚ they must lose their ways of mobility somehow. Since a biofilm is just one huge community of bacteria‚ it would be good to find out if there are ones that are more
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Multiplication of contaminant bacteria in urine and interpretation of delayed culture. Abstract A prospective study of the bacterial populations of non-infected urine was mounted in an attempt to define the length of delay between voiding and analysis during which culture would not give false positive results due to the multiplication of contaminant bacteria present at the time of voiding. The findings suggest that culture of urine within four hours of voiding is likely to give a true indication
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The Effect of Common Bactericidal Agents on Staphylococcus Epidermidis Introduction Staphylococcus epidermidis is a facultative anaerobic bacterium. It is part of the normal human flora and is found on the skin. Colonies of these bacteria can produce a protective slime called a hydrophobic biofilm. Staphylococcus epidermidis is usually not pathogenic unless it enters the human body. One of the most common places for infections are hospitals where people often have weakened immune systems‚ open
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