Discussion
The outermost protective layer of a cereal grain is the
Answer: A
Correct answer: Pericarp
The pericarp is the outermost layer of a cereal grain - the fruit coat, derived from the ovary wall - and it is what the miller removes first, as bran.
Working inward from it lie the seed coat, then the aleurone layer, a single layer of protein- and mineral-rich cells, and finally the starchy endosperm that forms the bulk of the kernel and yields the flour. The germ, the embryo, sits at one end. The pericarp is tough and fibrous, which is what makes conditioning worthwhile: damp bran peels away instead of shattering into the flour.
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