Good Bacteria for the Human body

Cards (34)

  • Good bacteria
    Beneficial bacteria to the body and enhance health
  • 85% of bacteria are good and 15% are bad
  • Scientists estimate that only 1-10% of total bacteria have even been discovered
  • Around 100 trillion good bacteria live in and on our bodies- these bacteria reside in our gut
  • There are billions of microbes and lots more we haven't discovered yet
  • Most of these microbes are
    • Necessary for our survival
    • Good for us
    • Can be used for our benefit in industry
  • Probiotics
    • They help break down toxins and help build immunity
    • Mutualism
  • Probiotic
    The term probiotic comes from the Latin or Greek pro, "before, forward", and bios, or life" — thus probiotics are life-promoting. In this case, we use the term probiotics to refer to beneficial bacteria.
  • Probiotic was coined by Lily And Stillwell in 1965
  • Treatments with probiotics
    • Diarrhea
    • Irritable bowel syndrome
    • Ulcerative colitis and Crohn's disease
    • Tooth decay, gingivitis and periodontitis
    • Eczema
  • Probiotics can help with diarrhea by restoring the balance of bacteria in your gut
  • Russian scientist Elie Metchnikoff, who has worked at the famous Pasteur Institute in Paris during 28 years, was the first to suggest that Lactic Acid Bacteria were beneficial to the intestinal
  • Japanese microbiologist, Minoru Shirota, developed a new strain of bacteria called Lactobacillus casei Shirota
  • Lactobacillus (Lactic acid bacteria)

    This species of bacteria produces lactase, the enzyme that breaks down lactose, or milk sugar. These bacteria also produce lactic acid. Lactic acid helps control the population of bad bacteria.
  • Lactobacillus bacteria are found naturally in the mouth, small intestine, and vagina
  • Lactobacillus (group)

    • Breaks down food, absorbs nutrients, make vitamins, helps prevents bad bacteria
    • Lactobacillus can inhibit the growth of cancer cells in the colon and mammary glands by preventing the body from being contaminated with pathogenic flora
  • Bifidobacteria
    Another Probiotic – same benefits as Lactobacillus
  • Bifidobacteria were first isolated from the feces of breast-fed infants in 1899, by Henri Tissier, and were designated Bacillus bifidus
  • Uses of Bifidobacteria
    • Digest dietary fiber, support the immune system, help prevent infection, for preventing the common cold or flu, and produce vitamins and other important chemicals, including B vitamins and healthy fatty acids
  • Side effects of Bifidobacteria
    When taken by mouth: Bifidobacteria are LIKELY SAFE for healthy adults when taken by mouth appropriately. In some people, treatment with bifidobacteria might upset the stomach and intestine, causing diarrhea, bloating and gas.
  • Staphlococcus hominis
    • Just 1 of the 180 species of friendly skin bacteria
    • It helps prevent bad Staph from attaching to your skin cells
    • It occurs very commonly as a harmless commensal on human and animal skin and is known for producing thioalcohol compounds that contribute to body odor
    • Thiols used as odorants to assist in the detection of natural gas (which in pure form is odorless), and the "smell of natural gas" is due to the smell of the thiol used as the odorant
    • Thiols are sometimes referred to as mercaptans
    • Staphlococous hominis may occasionally cause infection in patients whose immune systems are compromised, for example by chemotherapy or predisposing illness
  • Streptococcus thermophilus
    • Streptococcus thermophilus-bacteria produce the enzyme lactase
    • This probiotic strain is located mainly in the colon and has a strong effect on the gastrointestinal tract, immune system and many other health-improving factors
  • Streptococcus thermophilus benefits
    • Improves digestion
    • Reduces diarrhea after consumption of the antibiotics
    • Decreases the symptoms of ulcerative colitis
    • Reduces leaking bowel symptoms
    • Breaks down lactose
    • Reduces the symptoms of IBS
    • Reduces acute diarrhea
    • Boosts immunity
    • Prevents and fights upper respiratory tract infections (eg pneumonia)
    • Prevents ulcers caused by Helicobacter pylori
    • Reduces the symptoms of AIDS
  • Some people, such as those with compromised immune systems, short bowel syndrome, central venous catheters, heart valve disease and premature infants, may be at higher risk for adverse events
  • Saccharomyces boulardii
    • Saccharomyces boulardii is a type of yeast, but it acts as a probiotic, commonly known as brewer's yeast and baker's yeast
    • Helpful for preventing and treating traveler's diarrhea, including infectious types such as rotaviral diarrhea in children diarrhea caused by gastrointestinal (GI) take-over (overgrowth) by "bad" bacteria in adults and diarrhea associated with tube feedings
    • Useful for treating acne, and reducing the side effects of antibiotic treatment for H. pylori bacteria
  • Cyanobacteria or 'blue-green algae'
    • Produce oxygen and nutrients other organisms need to live
    • Cyanobacteria get their name from the bluish pigment phycocyanin, which they use to capture light for photosynthesis
  • Rhizobia Bacteria
    • Converts Nitrogen into forms that Plants can use to make Proteins which is required for many crops to grow
    • Rhizobia bacteria are found in the soil, where they survive until legume plant roots are available to infect
    • The first known species of rhizobia, Rhizobium leguminosarum, was identified in 1889, and all further species were initially placed in the Rhizobium genus
  • Benefits of Helpful Microorganisms
    • Help provide us with other kinds of food (bacteria turns milk into yogurt, bacteria produces cheese, yeast makes bread,rolls, and cakes rise)
    • Microorganisms help us digest our food
    • Microorganisms produce medicine (Penicillin is made than mold, Bacteria and viruses are the key components of the vaccines that prevent the spread of once-deadly diseases like smallpox)
    • Make dead things decay (Earth would otherwise be covered with a thick layer of dead plants and animals)
  • Penicillin
    • Discovered by Alexander Flemming in 1928
    • Produced by the fungus Penicillium notatum
    • One of the most commonly used antibiotics today
  • Vaccines
    • Discovered by Edward Jenner in 1796
    • Usually made from weak or inactive versions of the same microbes that make us ill
  • Fermentation
    • A process during which the bacteria break down the complex sugars into simple compounds like carbon dioxide and alcohol
    • The science of fermentation is known as "Zymology"
    • Fermentation changes the product from one food to another
  • Wash hands often and cook food carefully
  • Antibiotics cure diseases caused by bacteria but cannot cure diseases caused by fungi or viruses, and can kill both good and bad bacteria
  • Eating yogurt puts back good bacteria in your body