Indiana Biolab Yeast Pages

All yeasts are fungi, however because of their budding type of growth it is common to study them separately from the other fungi.

Like all other fungi, no yeast is able to make its own food. All yeasts survive by eating dead or living organic materials. A few yeasts cause plant and animal diseases. Others get rid of dead plants and animals. Some consume oil and industrial wastes. Some are important foods for humans and other animals. Yeasts are important sources of vitamins for humans, other animals, and bacteria.

Beginning microbiologists and farmers, especially those working at home, need to study the human pathogenic fungi to reduce the risk of accidental infection by fungi. Fungus infections are very difficult to treat successfully. The risk of fungus infection is greater in jogging or gardening than in doing lab experiments. Please begin your work with fungi by reading the Medical Yeasts pages.

Yeasts are seldom chosen by students for science projects because their teachers do not know very much about yeasts. Since most yeasts are harmless to humans, are larger than bacteria, and have important and interesting traits, yeasts make excellent science projects. Yeasts are very common in nature. They like sugars and are therefore found anywhere sugars are found. They are common in the nectar of flowers, on ripe fruit, in decaying fruit, in the slime fluxes running down tree trunks, and in sugary foods in homes and food processing plants. Some yeast can grow in high sugar and high salt foods. Yeasts are important foods for fruit flies and other insects found in slime fluxes and decaying fruit.

Introduce yeasts - habitat and food. their nature,

For uniformity, I am using the Bacteria site as a model for the Yeast pages. I am still making the needed changes. Only yeast pages listed above this line are installed at present.

This site has the information to enable any young Pasteur to conduct excellent microbiology experiments at home with materials found in any kitchen. Farmers, gardeners, and amateurs will find useful methods and information on these pages for science projects, family health, gardening, farming, animal care, and food preservation. Inexpensive kits of Cultures and supplies are available.

First-time visitors please click here for information moved from this page to make downloading faster. For fast browsing, Bookmark this page, then use your Back Button to return to this index as you finish looking at any page of this site.

Start Your Microbiology Science Project Here, Today!

B000 - Index page giving general safety and background information for your microbiology project. This page will help you get an outstanding bacteria project going. Also visit our yeast, fungi, and bacteriophage web sites which are in early construction.

B020 - Start your own Home Microbiology Lab by reading this index page. Introductory experiments, media, tools, and methods for beginners using foods and items found at home--few or no purchases required. B020a prints a work plan for starting your bacteria project.

B040 - Index page to Standard Methods used in Microbiology: This chapter shows you how to perform the techniques used in colleges, hospitals, and professional laboratories. The amateur microbiologist may not have access to this equipment, but these pages help him design or select substitutes so that he is able to complete many additional experiments.

B060 - Experiments on Growth Requirements of Bacteria. Effect of environmental factors on the growth of bacteria. Performing these experiments will help you understand bacteria and how to protect your food from spoilage and poisoning by bacteria . Salt, sugar, pH, oxygen level, heat, and other agents are all used to protect and preserve foods. In these experiments you will aloso learn how different genera and species of bacteria differ in their response to environmental conditions.

  • B090 - Beginner's Guide to Classification of the Funi NOT INSTALLED
  • F100 - Food Bacteriology: Experiments with the fungi you eat every day NOT READY

    F200 - Isolation of fungo from nature based on their traits.Not Installed

    F400 - A Professional Classification of the Bacteria. INCOMPLETE

    F800 - Medical Mycology; move pathogenic discussions here - not ready (incomplete)

    F900 - Bacterial genetics INCOMPLETE barely started.

    First time Visitors Please Read This

    You can easily and safely run a bacteria project at home for a few years. Such long-term projects usually win college scholarships for young scientists.

    These pages were written for the young Pasteur who has an interest in microbes, but has no books, no equipment, no microbes--nothing but a desire to learn. You will find protocols for isolating bacteria from nature, descriptions of species, and useful information not found elsewhere on the Web. With this information you will be able to start you own collection of pure cultures and identify many of them, at least assign them to the correct genus. If you put in that much effort, you will probably learn as much as many students in a good college microbiology course. Likewise elementary and highschool teachers, farmers, gardeners will learn much to aid them. Eventually this site will be 20 times as large as it is today.

    You do not need a microscope. Toy microscopes are useless for studying bacteria. A microscope good enough to see bacteria costs hundreds of dollars. You would have to pay over $1,000 for a microscope that would be really useful. If you want to see your bacteria, take them to school and use a microscope there. Instead of spending money on a microscope, it is better to concentrate on isolating bacteria from nature and studying their biochemical traits. Someone once told Pasteur he had called a bacterium a coccus (round) when it was actually rod-shaped. "If you only knew how little difference that makes to me," Pasteur replied.

    There is no need to go out and buy lots of equipment. Begin with Home Micro Lab by making media from common kitchen foods and isolate some bacteria.

    Bottles can serve as culture tubes, or your teacher may loan you culture tubes and supplies. If not try a hospital, they throw away lots of items you can use and if autoclaved they are perfectly safe. Before you trouble a hospital for gifts, do a few week's work at home and prove that you are really interested and planning to work hard. Can lids, or flat bottles can serve as petri plates. Most students only have access to plastic petri plates, but is sometimes possible to reuse them.

    BA.htm - Isolation and study of Bacillus strains

    CL.htm - Isolation and study of Clostridum strains

    Some day there will be pages on yeasts and fungi.

    You may send private e-messages to Dr. Eddleman and he will reply, usually within 24 hours.

    First installed January 1998      Revision #6 1998 March 12
    Written by Harold Eddleman, Ph. D., President, Indiana Biolab, 14045 Huff St., Palmyra IN 47164
    | Indiana Biolab | Home Micro Lab | Bacteria Evironmental Needs | Food Microbiology |

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