eaten freely, but if one’s habits are sedentary, and the cereals are
used in excess, there is danger of clogging the system with too much
glycogen, or converted starch. Indeed, for one whose occupation is
indoors and requires little muscular activity, a very little cereal
food will suffice; the carbohydrates will be supplied, in sufficient
quantity, in vegetables. Mineral matter is supplied in sufficient
quantity in almost all classes of foods.
The power of the system to throw off food, over and above the needs of
the body, is a wise provision of Nature, because where foods are not
supplied in the proper proportions, a more liberal diet enables the
system to select such foods as it needs from the abundance.
Cereals and legumes supply nutrients cheaper than any class of foods;
therefore a vegetarian diet involves less expense than the mixed diet.
Meat, eggs and milk, which usually supply the proteins, are the most
expensive foods, and where these are eliminated, a large proportion of
proteins should be supplied by the legumes.
* * * * *
=Wheat.= Perhaps no food is as commonly used as wheat, in its various
forms. It is composed of:
First—The nitrogenous or protein compound, chiefly represented in the
cerealin and the gluten of the bran.
Second—The carbon extracts,—the largest contributor to the flour.
Third—The fats, occurring chiefly in the germ of the grain.
Fourth—The phosphorous compounds, iron and lime, found in the bran.
The kernel of wheat consists of the bran or covering, which surrounds
the white, pulpy mass of starch within. In the lower end of the kernel
is the germ.
_Flour._ In the old time process of making flour the wheat was crushed
between stones and then sifted, first, through a sieve, which separated
the outer shell of the bran; then through bolting cloth, which
separated the white pulp from the inner bran coating. It was not ground
as fine as in the present process, thus the gluten, phosphorous, and
iron (valuable foods) were, in the old process, nearly all left out of
the white flour. The second bran coating, left by the second sifting,
was not so coarse as the outer shell but coarser than the inner. Care
was not formerly observed in having the grain clean before grinding,
the bran containing chaff and dirt, so that it was not used as food but
was considered valuable for stock and was called “middlings.”
The modern process of crushing the wheat between steel rollers, crushes
it so fine that the white flour of to-day contains more of the protein
from the inner coat of the bran than the white flour of the old
process; hence, it is more nutritious.
_Bran._ Objection is sometimes made to bran because the cellulose shell
is not digested, but bran contains much protein and mineral matter
and, even though it is crude fiber, as stated above, this fiber has
a value as a cleanser for the lining of stomach and intestines, and
for increasing peristalsis, thus encouraging the flow of digestive
juices and the elimination of waste. In bread or breakfast foods, it is
desirable to retain it for its laxative effect.
The bran has three coats,—the tough, glossy outside, within this a coat
containing most of the coloring matter, and a third coat, containing
a special kind of protein, known as cerealin. The two outer layers
contain phosphorous compounds, lime, and iron. All three coats contain
gluten.
Of course there is more waste in bread made with bran and in
consequence, there is a smaller _proportion_ of the nutrition in graham
bread. It is held by some, however, that more of the nutrition is
digested than in white bread.
_Gluten flour_ is made of the gluten of wheat. It is a valuable, easily
digested food, containing a large proportion of protein.
_Whole wheat_ flour does not contain the whole of the wheat, as the
name implies; it, however, does contain all the proteins of the
endosperm and the gluten and oil of the germ, together with all of
the starch. As a flour, therefore, it is more valuable than the white
flour, containing more nitrogenous elements.
_Graham flour_ is the entire wheat kernel; with the exception of
the outermost scale of the bran. It contains the starch, gluten,
phosphorous compounds, iron and lime. It is the most desirable of
the flours because, containing the bran, it assists in digestion and
elimination, and the phosphorous, iron and lime are valuable for body
building.
_Nutri meal_ is much the same as Graham flour, the chief difference
being that the bran is ground finer. The wheat is ground between
hot rollers, the heat bringing out the nutty flavor of the bran. It
contains all of the nutrition of the wheat.
_Bread._ As must be implied from the above, the “whole wheat,” nutri
meal, or graham flours are necessary if bread is to be a complete food.
There is perhaps no form of prepared food which has been longer in
vogue. It has been known since history began. It probably maintains and
supports life and strength better than any single food. The ease with
which it is digested depends very largely upon its porous condition.
When full of pores, it is more readily mixed with the digestive juices.
The pores in bread are produced by the effort of the gas, released
by the yeast, to escape. When mixed with water, the flour forms a
tenacious body which, when warm, expands under the pressure of the
gas from the yeast, until the dough is full of gas-filled holes. The
walls of the gluten do not allow the gas to escape, and thus the dough
is made light and porous. The more gluten the flour holds, the more
water it will take up in the dough, and the greater will be the yield
of bread; hence, the more gluten, the more valuable the flour. If the
bread is not porous, the fermentation is not complete, and the bread is
heavy.
Yeast is a plant fungus. In its feeding, the plant consumes sugar,
changing it into alcohol and carbonic acid gas. If the bread contains
no sugar the yeast plant will change the starch in the flour into sugar
for its feeding. Many housewives, realizing that the bread begins to
“rise” quicker if it contains sugar, put a little into the sponge.
Unless a large quantity of sugar is put in, the yeast will consume it
and the bread will not have an unduly sweet taste.
As the yeast causes fermentation, alcohol forms in the dough. This
is driven off in the baking. If the bread is not thoroughly done,
the alcohol continues to ferment and the bread turns sour. Bread is
not thoroughly baked until fermentation ceases. It is claimed that
fermentation does not entirely cease with once baking; this is the
basis of the theory, held by some, that bread should be twice baked.
The average housekeeper bakes an ordinary loaf one hour.
Time must be given for the products of fermentation to evaporate, in
the cooling of the bread, before it is eaten and it is not ready to eat
for eight to ten hours after baking. Hot or insufficiently cooked bread
is difficult of digestion, because it becomes more or less soggy upon
entering the mouth and the stomach, and the saliva and gastric juices
cannot so readily mix with it.
The best flour for bread is that made from the spring wheat, grown in
cooler climates, because it is richer in gluten than the winter wheat.
The winter wheat flour is used more for cakes and pastries.
Bread made from milk, is, of course, richer and more nutritious than
that made from water and bread made from potato water contains more
starch; both of these retain their moisture longer than bread made with
water.
Mould, which sometimes forms upon bread, is, like the yeast, a minute
plant. It is floating about everywhere in the air, ready to settle down
wherever it finds a suitable home. Moisture and heat favor its growth,
hence bread should be thoroughly cooled before it is put into a jar or
bread box and the bread box should be kept in a cool place.
_Rye bread_ contains a little more starch and less protein than wheat
bread. It contains more water and holds its moisture longer.
_Biscuits._ The objection to eating hot bread, does not hold for baking
powder or soda biscuits, if well cooked, because these cool more
rapidly and they do not contain the yeast plant; hence, they do not
ferment as does the bread.
Baking powder is made from bicarbonate of soda (baking soda) and cream
of tartar. When these are brought in contact with moisture, carbon
dioxid is formed, and, in the effort to escape, it causes the dough to
expand and become light. The reason that the cook attempts to bake her
biscuits, or anything made with baking powder as quickly as possible,
after the baking powder comes in contact with the moisture, is that the
dough may have the full effect of the expansion of the gas. If the room
in which she mixes her dough is cool, or if her biscuit dough is left
in a cool place, this is not important, as heat and moisture are both
required for full combustion.
_Macaroni and spaghetti_ are made from a special wheat flour rich
in gluten known as Durum. They contain about seventy-seven per cent
starch, little fat and little protein. They may take the place of
bread, rice or potato at a meal.
* * * * *
=Rice= is a staple cereal in all tropical and temperate climates. It
requires special machinery to remove the husk and the dark, outer skin
of the kernel. It is seldom eaten within three months after harvesting
and it is considered even better after two or three years. It requires
thorough cooking.
Unhusked rice is called paddy.
_Wild rice_ is used by the North American Indians. The seeds are
longer, thinner and darker, than the tame rice. It is coming into favor
as a side dish, but it is served more particularly at hotels in soup
and with game.
As previously stated, rice contains a larger proportion of starch than
any other cereal and the smallest proportion of protein. Next to rice,
in starches, comes wheat flour; yet whole wheat or graham flour contain
half as much again of protein.
Because of the quantity of starch in flour, potatoes and rice, it is
obvious that one should not eat freely of more than one of these at the
same meal, else the digestive organs will be overworked in converting
the starch into sugar and the liver overworked in converting the
sugar into glycogen and back again into sugar; and the liver will be
overloaded in storing it up. By far the best plan is to eat but one
cereal at a meal.
Rice contains no gluten, hence it cannot be raised in bread.
* * * * *
=Corn= (maize) is a native of America and has been one of the most
extensively used cereals. Corn bread and corn meal mush were important
foods with the early settlers, partly because they are nutritious and
partly because the corn meal was easily prepared at the mill and was
cheap. The germ of the corn is larger in proportion than the germs
of other grains, and it contains much fat; therefore it is heating.
For this reason, it is strange that corn bread is so largely used by
inhabitants of the southern states. It is a more appropriate food for
winter in cold climates.
Because of the fat in the germ, cornmeal readily turns rancid, and,
on this account, the germ is separated and omitted from many cornmeal
preparations.
_Hulled corn_, sometimes called lye hominy, is one of the old-fashioned
ways of using corn. In its preparation, the skin is loosened by
steeping the corn in a weak solution of lye, which gives it a peculiar
flavor, pleasing to many.
_Cornmeal mush_ is a valuable breakfast food.
_Pop corn._ The bursting of the shell in popping corn is due to the
expansion of the moisture in the starch, occasioned by the heat.
_Green sweet corn_ does not contain the same proportion of starch as
cornmeal, it being, in its tender state, mostly water. It is laxative,
because it is eaten with the coarse hull, which causes more rapid
peristalsis of the intestines.
* * * * *
[Sidenote: Breakfast Foods]
The claims made for various advertised breakfast foods would be
amusing if they were not intended to mislead. Nearly all of them have
sufficient merit to sell them, if the advertiser confines himself
strictly to the truth, but the ever pertinent desire to excel, which is
one great incentive to progress, leads to exaggeration. For example:
Claim is sometimes made that they contain more nutriment than the
same quantity of beef. Reference to above table does not bear out
such statement; they contain more starch but less protein. It is
also claimed by some advertisers that breakfast foods are brain and
nerve foods. The idea that certain foods are brain and nerve foods is
erroneous, excepting that any tissue building food (protein) builds
nerve and brain tissue as it builds any other tissue. There is a
prevalent idea that fish and celery are brain food, but there is no
scientific basis for the theory.
The grains commonly used for breakfast foods are corn, oats, rice, and
wheat. Barley, and wild rice, millet and buckwheat are used in some
sections but not enough to warrant discussion here. Barley is used
chiefly for making malt and pearled barley for soups.
The following table, from one of the bulletins published by the United
States Department of Agriculture, is interesting from an economical
standpoint.
Table VI.
_Comparative cost of digestible nutrients and available energy in
different cereal breakfast foods._
————————————————————+—————+———————+———————+——————————————————————————————
| |Cost of|Cost of| Amount for 10 cents
|Price| one |1,000 +———————+————+————+——————+—————
Food Materials | per | pound |calo- | Total |Pro-| |Carbo-|En-
|pound| of |ries |wgt. of|tein|Fat | hy- |ergy
| |protein| of | mate- | | |drates|
| | |energy | rial | | | |
————————————————————+—————+———————+———————+———————+————+————+——————+—————
Oat preparations: | | | | | | | |
Oatmeal, raw | 3 | 0.24 | 1.7 | 3.33 |0.42|0.22|2.18 |5,884
Do | 4 | .32 | 2.3 | 2.50 | .31| .16|1.64 |4,418
Rolled oats, | | | | | | | |
steam cooked | 6 | .48 | 3.4 | 1.67 | .21| .11|1.08 |2,938
Wheat preparations: | | | | | | | |
Flour, Graham | 4 | .40 | 2.6 | 2.50 | .25| .01|1.61 |3,790
Flour, | | | | | | | |
entire-wheat | 5 | .46 | 3.1 | 2.00 | .22| .03|1.36 |3,188
Flour, patent | 3.5| .35 | 2.1 | 2.86 | .29| .03|2.10 |4,700
Farina | 10 | 1.12 | 6.2 | 1.00 | .09| .01| .73 |1,609
Flaked | 15 | 1.69 | 9.3 | .67 | .06| .01| .46 |1,005
Shredded | 12.5| 1.62 | 8.2 | .80 | .06| .01| .57 |1,217
Parched and | | | | | | | |
ground | 7.5| .88 | 4.9 | 1.33 | .11| .02| .94 |2,050
Malted, cooked | | | | | | | |
and crushed | 13 | 1.43 | 8.5 | .77 | .07| .01| .53 |1,175
Flaked and | | | | | | | |
malted | 11 | 1.21 | 7.2 | .91 | .08| .01| .62 |1,389
Barley preparations | | | | | | | |
Pearled barley | 7 | 1.06 | 4.6 | 1.43 | .09| .01|1.04 |2,165
Flaked, steam | | | | | | | |
cooked | 15 | 1.83 | 9.6 | .67 | .05| | .50 |1,051
Corn preparations: | | | | | | | |
Corn meal, | | | | | | | |
granular | 3 | .44 | 1.8 | 3.33 | .23| .06|2.48 |5,534
Hominy | 4 | .62 | 2.4 | 2.50 | .16| .01|1.97 |4,178
Samp | 5 | .78 | 3.0 | 2.00 | .13| .01|1.57 |3,342
Flaked and | | | | | | | |
parched | 13 | 1.73 | 7.5 | .77 | .06| .01| .60 |1,335
Rice preparations: | | | | | | | |
Rice, polished | 8 | 1.48 | 4.7 | 1.25 | .07| | .94 |1,855
Flaked, steam | | | | | | | |
cooked | 15 | 2.31 | 9.8 | .67 | .04| | .51 |1,026
Miscellaneous foods | | | | | | | |
for comparison: | | | | | | | |
Bread, white | 6 | .74 | 5.0 | 1.67 | .14| .02| .87 |2,009
Do | 5 | .62 | 4.2 | 2.00 | .16| .02|1.04 |2,406
Crackers | 10 | 1.10 | 5.3 | 1.00 | .09| .08| .71 |1,905
Macaroni | 12.5| 1.08 | 7.5 | .80 | .09| .01| .58 |1,328
Beans, dried | 5 | .28 | 3.5 | 2.00 | .35| .03|1.16 |2,868
Peas, dried | 5 | .26 | 3.4 | 2.00 | .38| .02|1.20 |2,974
Milk | 3 | .94 | 9.7 | 3.33 | .11| .13| .17 |1,030
Do | 3.5| 1.09 | 11.3 | 2.86 | .09| .11| .14 | 885
Sugar | 5 | | 2.8 | 2.00 | | |2.00 |3,515
Do | 6 | | 3.4 | 1.67 | | |1.67 |2,940
————————————————————+—————+———————+———————+———————+————+————+——————+—————
The less expensive breakfast foods, such as oatmeal and cornmeal,
are as economical as flour, and, as they supply heat and energy in
abundance, as shown by above table, they should be supplied in the diet
in proportion to the energy required. They are easily prepared for
porridge, requiring simply to be boiled in water, with a little salt.
For invalids, children and old people, breakfast foods prepared in
gruels and porridges are valuable as they are easily digested. All
should be thoroughly cooked so as to break the cells enclosing the
starch granules.
* * * * *
=Predigested Foods.= Some foods are claimed to be partly digested and
thus valuable for those with weak stomachs, but breakfast foods are
largely starch and the gastric juices are not active in the digestion
of starch. It is digested by saliva and the ferment diastase in the
intestines. (Diastase is a ferment of saliva and pancreatic juice,
which changes starch into dextrin and maltose, in which form it is more
easily acted upon by the intestinal juices.)
Experiments with “predigested” foods do not show a larger proportion
of dextrin, however, than would naturally be produced by the
heating of the starch, as these foods are being cooked at home. The
natural cooking at home makes starch more or less soluble, or at
least gelatinized. As a result of these experiments, therefore the
“predigested” argument is not given much weight.
Predigested foods, excepting in cases so weak as to be under the
direction of a physician, are not desirable. Nature requires every
organ to do the work intended for it, in order to keep up its
strength, just as she requires exercise for the arms or legs to keep
them strong. If an organ is weak, the _cause_ must be found and
corrected,—perhaps the stomach or intestines need more blood which
should be supplied through exercise; or perhaps the nerves need
relaxation; or the stomach less food; or food at more regular intervals.
Another argument against predigested foods lies in the fact that
dentists hold that the chewing of coarse food is necessary to keep the
teeth strong. For this strengthening of the teeth, children are given
dry crackers and dry toast each day.
In the so-called “predigested” or “malted” preparations, malt is added
while they are being cooked. Malt is a ferment made from some grain,
usually from barley, the grain being allowed to germinate until the
ferment diastase is developed.
There is no doubt that a number of foods, containing malt are valuable
in the hands of physicians to assist in converting starch into dextrin
or sugar, where diastase is not formed in sufficient quantity,
just as pepsin is an aid in the digestion of protein,—but eaten
indiscriminately, there can be no question that it is more important
for the stomach and intestines to perform their natural work and thus
keep their strength through normal exercise.
While they are not “predigested,” as claimed, they are, as a rule,
wholesome and nutritious. They are cleanly, and made from good,
sound grain and they contain no harmful ingredients. Some contain
“middlings,” molasses, glucose and similar materials, but these are in
no way injurious and have value as foods. The dry, crisp, ready-to-eat
foods are especially advantageous because of the mastication they
require,—this mastication insuring plenty of saliva being mixed with
them to aid in digestion. A dish of such dry breakfast food, well
masticated, together with an egg, to furnish a larger proportion of
protein, makes a wholesome breakfast.
* * * * *
=Cracked Wheat.= In America wheat is seldom used whole. In England the
whole grain, with the bran left on, is slightly crushed and served as
cracked wheat or wheat grits.
Wheat is also rolled, or flaked, or shredded. The majority of wheat
breakfast foods contain a part of the middlings and many of them bran.
Farina and gluten preparations do not contain these, however.
The preparations of the various breakfast foods are a secret of the
proprietors. The ready-to-eat brands are cooked, then they are either
rolled or shredded, the shredding requiring special machinery to
tear the steamed kernels; later they are dried, and, finally packed,
sometimes in small biscuits. Many preparations are baked after being
steamed, which turns them darker and makes them more crisp. Some
preparations are steamed, then run through rollers, while still wet,
and pressed into flakes or crackers.
* * * * *
=Oatmeals= are the most nutritious cereals. The oat contains more fat
than other grains and a larger proportion of protein. It is, therefore,
the best adapted to sustain life in the proportion of nutrient
elements. On account of the fat, oats are especially well adapted for
a breakfast food in winter. Another advantage oatmeal, or rolled oats,
have as a breakfast food is in their laxative tendency, due to the
coarse shell of the kernel.
Oat breakfast foods keep longer than the foods made from wheat and
rice.
There are no malts, or any mixtures in the oat preparations. The
difference between the various oatmeal breakfast foods is in their
manner of preparation. They all contain the entire grain, with the
exception of the husk. They are simply the ground or crushed oat. In
preparing the oats before grinding, the outer hull is removed, the
fuzzy coating of the berry itself is scoured off, the ends of the
berry, particularly the end containing the germ, which is usually the
place of deposit for insect eggs, is scoured, and the bitter tip end of
the oat berry is likewise removed.
_Rolled oats_ consist of the whole berry of the oat, ground into a
coarse meal, either between millstones, or, in the case of the so
called “steel cut” oatmeal, cut with sharp steel knives across the
sections of the whole oat groat.
_Quaker Oats_ consist of the whole groat, which, after steaming in
order to soften, have been passed between hot steel rolls, somewhat
like a mangle in a laundry, and crushed into large, thin, partially
cooked flakes. The oats are then further cooked by an open pan
drying process. This roasting process insures that all germ life is
exterminated, renders the product capable of quicker preparation for
the table and the roasting causes the oil cells to release their
contents, thereby producing what is termed the “nut flavor,” which is
not present in the old fashioned type of oat product.
Both Rolled Oats and Quaker Oats are now partially cooked in their
preparation but the starch cells must be thoroughly broken and they
should be cooked at least forty-five minutes in a double boiler; or, a
good way to prepare the porridge, is to bring it to the boiling point
at night, let it stand covered over night and then cook it twenty to
thirty minutes in the morning. Another method of cooking is to bring
the porridge to the boiling point and then leave it in a fireless
cooker over night.
The great fault in the preparation of any breakfast food is in not
cooking it sufficiently to break the starch cells.
* * * * *
=Puffed Rice= is made from a good quality of finished rice. The process
is a peculiar one, the outer covering, or bran, is removed and then
the product is literally “shot from guns;” that is, a quantity of the
rice is placed in metal retorts, revolved slowly in an oven, at high
temperature, until the pressure of steam, as shown by gauge on the gun,
indicates that the steam, generated slowly by the moisture within
the grain itself, has thoroughly softened the starch cells. The gun
retort is pointed into a wire cage and the cap which closes one end is
removed, permitting an inrush of cold air. This cold, on striking the
hot steam, causes expansion, which amounts practically to an explosion.
The expansion of steam within each starch cell completely shatters the
cell, causing the grain to expand to eight times its original size. It
rushes out of the gun and into the cage with great force, after which
it is screened to remove all scorched or imperfectly puffed grains.
This process dextrinizes a portion of the starch and also very
materially increases the amount of soluble material as against the
original proportion in the grain.
* * * * *
=Puffed Wheat= is manufactured from Durum, or macaroni wheat, of the
very highest grade. This is a very hard, glutinous grain. It is pearled
in order to thoroughly clean and take off the outer covering of bran.
It then goes through a puffing process, identical with that of Puffed
Rice. The chemical changes are very similar to those of puffed rice.
Both Puffed Rice and Puffed Wheat are more digestible than in the
original grain state. They are valuable foods for invalids.
* * * * *