Science for beginners . them atlow temperature in a refrigerator and sometimes in otherways. It is a rather peculiar fact that some foods which containmuch sugar are seldom attacked by yeasts. This is true ofsyrups, rich preserves, and jellies. While sugar is the princi-pal food of yeasts, strong concentrations of it serve as a pre^Tentative against both yeasts and bacteria. When yeasts andbacteria fall into strong concentrations of sugar, so muchwater is drawn from their bodies by the sugar that they areJailed. This does not occur in weak solutions of sugar. This fact is sometimes used in the
Science for beginners . them atlow temperature in a refrigerator and sometimes in otherways. It is a rather peculiar fact that some foods which containmuch sugar are seldom attacked by yeasts. This is true ofsyrups, rich preserves, and jellies. While sugar is the princi-pal food of yeasts, strong concentrations of it serve as a pre^Tentative against both yeasts and bacteria. When yeasts andbacteria fall into strong concentrations of sugar, so muchwater is drawn from their bodies by the sugar that they areJailed. This does not occur in weak solutions of sugar. This fact is sometimes used in the home treatment of SAPROPHYTES 275 wounds. Bacteria can be prevented from getting into anopen wound by pouring a considerable quantity of granulatedsugar on to the wound just before it stops bleeding. Thesugar makes a thick syrup with the blood. This syrup willusually kill all bacteria which would otherwise enter thewound. If the wound is then wrapped up and kept clean itusually will heal without the least
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscience, bookyear1921
