Semolina is then ground into flour. This greatly simplifies the process of separating the endosperm from the bran and germ, as well as making it possible to separate the endosperm into different grades because the inner part of the endosperm tends to break down into smaller pieces than the outer part. Different grades of flour can thus be produced. Semolina made from durum wheat is yellow in color. Semolina is often used as the base for dried products such as couscous, which is made by mixing roughly 2 parts semolina with 1 part durum flour (finely ground semolina). Broadly speaking, meal
Birbeck granules Birbeck granules Birbeck granules, also known as Birbeck bodies, are rod shaped or "tennis-racket" cytoplasmic organelles with a central linear density and a striated appearance. First described in 1961 (where they were simply termed "characteristic granules"), they are solely found in Langerhans cells. Although part of normal Langerhans cell histology, they also provide a mechanism to differentiate Langerhans cell histiocytoses (which are a group of rare conditions collectively known as histiocytoses) from proliferative disorders caused by other cell lines. Formation is induced by langerin. The function of Birbeck granules is debated, but one theory is that they migrate to the