The change that is brought about in
the sugar by the cooking of fruits consists in changing the cane sugar
into levulose and dextrose, which are not so sweet. This change accounts
for the fact that some cooked fruits are less sweet than others, in
spite of the fact that the acid does not seem to be increased.
26. In addition to producing certain changes in fruit, cooking, if done
thoroughly, renders fruits sterile, as it does other foods; that is, it
kills any bacteria that the fruits may contain. Advantage of this fact
is taken when fruits are canned for future use. Although most persons
prefer raw fruit to that which is cooked, there are some who object to
eating this food raw, but who are not always certain as to the reason
for their objection. Like other raw foods, fruits in their fresh state
contain _vitamines_; that is, a substance that helps to keep the body in
a healthy, normal condition. These are found to some extent in cooked
fruits, but not in the same quantity as in raw ones; consequently, as
much use as possible should be made of raw fruits in the diet.
* * * * *
FRUITS AND THEIR PREPARATION AS FOOD
PREPARING AND SERVING
27.
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