A Civic Biology, Presented in ProblemsHunter, George W. (George William)
Science
A Civic Biology, Presented in Problems
Hunter, George W. (George William)
Biology; Sanitation
spoons | 1.1 | 2 | 0 | 98 | .40 | .025
Sugar |3 teaspoons | .86 | 0 | 0 | 100 | .06 | .003
Milk as bought | small glass | 4.9 | 19 |52 | 29 | .05 | .015
Milk, cond., sweet|4 teaspoons | 1.06 | 10 |23 | 67 | | .01
Oranges |1 large one | 9.4 | 6 | 3 | 91 | | .025
Peanuts |13 double ones | .62 | 20 |63 | 17 | | .004
Almonds, shelled |8-15 | .53 | 13 |77 | 10 | | .025
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From the preceding table plan a well-balanced and cheap dietary for one day
for a family of five, two adults and three children. Make a second dietary
for the same time and same number of people which shall give approximately
the same amount of tissue and energy producing food from more expensive
materials.
Food Waste in the Kitchen.--Much loss occurs in the improper cooking of
foods. Meats especially, when overdone, lose much of their flavor and are
far less easily digested than when they are cooked rare. The chief reasons
for cooking meats are that the muscle fibers may be loosened and softened,
and that the bacteria or other parasites in the meat may be killed by the
heat. The common method of frying makes foods less digestible. Stewing is
an economical as well as healthful method. A good way to prepare meat,
either for stew or soup, is to place the meat, cut in small pieces, in cold
water, and allow it to simmer for several hours. Rapid boiling toughens the
muscle fibers by the too rapid coagulation of the albuminous matter in
them, just as the white of egg becomes tough when boiled too long. Boiling
and roasting are excellent methods of cooking meat. In order to prevent the
loss of the nutrients in roasting, it is well to baste the meat frequently;
thus a crust is formed on the outer surface of the meat, which prevents the
escape of the juices from the inside.
Vegetables are cooked in order that the cells containing starch grains may
be burst open, thus allowing the starch to be more easily attacked by the
digestive fluids. Inasmuch as water may dissolve out nutrients from
vegetable tissues, it is best to boil them rapidly in a small amount of
water. This gives less time for the solvent action to take place.
Vegetables should be cooked with the outer skin left on when it is
possible.
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