what is fiber? plant materials that are eaten but can’t be digested by human enzymes
TRANSCRIPT
What is Fiber?Plant materials that are eaten but can’t be digested by human enzymes.
How much fiber do we need???
20-35 grams a day
Two Types of FiberSoluble FiberInsoluble Fiber
Soluble FibersThey form a gel once in the
intestines and are easily digested by bacteria in the colon.
EXAMPLES◦Legumes◦Barley◦Oatmeal◦Some Fruits◦Some Vegetables
Insoluble FiberDo NOT dissolve in water, Do
NOT form gels. They aid the digestive system by easing elimination waste.
EXAMPLES:◦Outer layers of whole grains “bran”◦Strings of celery
Fiber helps preventConstipationHemorrhoidDiverticula (bulging pockets in
the colon wall that can trap feces and then become infected.
Colon CancerHelps decrease cholesterol
Wheat Kernel
EndospermThe soft, white inside portion of
the kernel containing starch
and proteins.Biggest portion of the kernel.White FLOUR
BranOuter layer of the kernel, covers
the endosperm.
The bran contains a small amount of protein, large quantities of the three major B-vitamins, trace minerals, and dietary fiber - primarily insoluble
GermSmallest part of the kernel.The germ is high in B-Vitamins
and Trace Minerals. Wheat germ can be purchased
separately and is part of whole wheat flour.
Refined vs. WholeRefined the bran and germ are
removed leaving only the endosperm.
The whole kernel is used nothing is taken out.
Enriched, FortifiedNurtients are added to the flour.
By law (Enrichment Act of 1942) and was amended in 1996 to include folate.◦Thimain◦Riboflavin◦Niacin◦Folate◦Iron are added.
Stone GroundRefers to a milling process using
limestone to grind any grain, including refined grains into flour.
Wheat BreadBread made with any wheat flour
including refined enriched white flour.
Whole-Wheat FlourFlour made from whole-wheat
kernels
100% Whole GrainsThe grain is entirely whole grain
with no added refined grains.
Whole GrainRefers to a grain milled in its
entirety not refined.
Wheat FlourFlour made from wheat, including
refined white flour.
White FlourFlour made from endosperm that
has been refined and bleached for maximum softness and whiteness