Bacteria are unicellular and ultra-microscopic organisms‚ yet they play an important role in nature. They are of tremendous importance to man. They play an important role in agriculture and medicine and are the basis of many industries. Some are beneficial to man directly or indirectly‚ others are very harmful as they cause various plant and animal diseases. Bacteria are considered as our friends and foes due to their beneficial and harmful activities. Their economic importance can be studied under
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CHAPTER I INTRODUCTION 1.1 Background Food is one of human sources of calorie‚ protein‚ fats‚ and nutrition. Yet‚ because of the highly nutritious content‚ food is susceptible to growth of microorganisms. By the presence of microorganisms in food‚ the food is more likely to have shorter shelf life. Thus‚ mostly it is resolved by the addition of antimicrobial substances to food‚ such as condiments and preservatives. Condiments and preservatives could inhibit the growth of microorganisms
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acid to regenerate the citric acid. Fermentation of sugar by the mold Aspergillus niger is the chief commercial source of the acid. It is added to some foods and beverages to produce pleasant acid flavor; It is also used in medicines‚ in making blueprint paper‚ in textile printing‚ and as a polishing agents for metals. Citric acid is the product of fermentation of numerous organisms.However‚certain strains of the fungus Aspergillus niger produce commercially high yield of citric acid from a variety
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The two amylases that are used in the experiment is Aspergillus oryzae and Bacillus licheniformis. B. lichenformis is classified as bacteria that can be seen in soil‚ and is usually transported through a bird’s feathers or plumage. A. oryzae is a type of mold‚ or fungi‚ that is utilized for Asian food production‚ which could include the fermentation of soybeans. The student is required to discover the optimal temperatures for both‚ Aspergillus oryzae (Fungal) and Bacillus licheniformis (bacteria)
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* Plant Protection Division‚ Rubber Research Institute of Nigeria‚ PMB 1049‚ Benin City. Accepted 4 March‚ 2008 Phylloplane fungi were used as biocontrol agent against Colletotrichum leaf disease of rubber (Hevea brasiliensis Muell. Arg.). Aspergillus sp. lysed the cytoplasm of Colletotrichum gloeosporioides on Potato Dextrose Agar. Trichophyton sp. and Gliocladium sp. antagonised C. gloeosporioides by overgrowing on it. Other phylloplanes used in this study such as Botrytis sp.‚ Pleurothecium
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ANTIFUNGAL ACTIVITY OF AVOCADO (Persea americana) SEEDS EXTRACT Submitted by: April Angelou A. Butaslac IV-Ryl A Research Paper Presented to the Faculty of Regional Science High School‚ Region X In the Partial Fulfillment of the Requirements for Research II Submitted to: CHRISTY N. MONTESCLAROS Adviser March 2012 APPROVAL SHEET The Research paper here to attached‚ entitled; “Antifungal Activity of Avocado (Persea americana) Seeds Extract”‚ prepared and submitted by APRIL
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COVENANT UNIVERSITY Department of Biological Sciences NAME: OBUEKWE CHUKWUEMEKA AZUBUIKE MAT NO: 12CQ014230 PROGRAMME: MICROBIOLOGY COURSE: MCB 212 (MYCOLOGY) TOPIC: THE IMPORTANCE OF FUNGI IN; MEDICINE INDUSTRY THE ENVIRONMENT {DR OLASEINDE G.} INTRODUCTION Fungi are tremendously important to human society and the planet we live on
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Microbial Diversity and Ubiquity Microorganisms are microscopic organisms that are so small that that they can only be visualized by the aid of a compound-brightfield microscope. While we generally cannot see individual microorganisms with the naked eye‚ they are present in virtually every habitat known to man. Microorganisms can be prokaryotic—the bacteria or eukaryotic—the algae‚ protozoa or fungi. While viruses are acellular they are also studied in the scope of microbiology because
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plant Kigelia africana (Lam) Benth. (Bignoniaceae) and to investigate their potential antimicrobial activity. Seven species of endophytic fungi were successfully isolated from K. Africana for the first time: including Cladosporium sp.‚ Aspergillus flavus‚ Aspergillus sp.‚ Curvularia lunata as well as three unknown species. The fungal extracts were assessed for antibacterial activity against three standard pathogenic bacterial strains: Bacillus subtilis‚ Staphylococcus aureus and Escherichia coli. Most
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still‚ however‚ believes she has mild limitation with exercise and is having occasional nocturnal symptoms which are relieved by Ventolin. The allergy testing has shown significant atopy to horses‚ cats‚ dust mite‚ rye grass‚ couch grass and Aspergillus. The obvious concern her is her ongoing exposure to horses and given that she does also have allergic symptoms around her guinea pigs‚ they are likely to be contributing as well. They do have a dog around‚ a Cavoodle‚ but she has no obvious allergies
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