threads; for example make flow our liquid with a smaller outflow. We can also accelerate the process of
dissolution by adding a mechanical disturbance to the solution; for example, stirring the solution with a
When we pour some warm water on «cheveux d’ange», the phenomenon involved is the
dissolution. To improve it, there are 3 different ways: higher temperature of the solution, smaller diameter
of the «cheveux d’ange», or stirring the mixture.
III.2.6. Other suggestions/ openings, ideas, applications of technology:
To get a better dissolution of the “cheveux d’ange”, we can also increase the contact with the
water, for example by putting them in a big volume of water.
11 / 63
III.3. Red mullet scales
The aim of this study is to extract flavours and particular tastes of the scales of red mullet, by
extracting in oil and in water respectively hydrophobic and hydrophilic molecules. The method is the same
than in bisques, realized with shells of lobster and other sea productiv.
Fish scales constitute the external skeleton of fishes or dermic skeleton. They have a role of
epithelium, external skeleton, and protection. As any structure of support (chondrichtyens), scales are
compact structures through a process of calcification and ossification. Scales possess a superior coat of
osteoblasts, which help the calcification of proteins, constituted by fibers of collagens and by microfibrils
of actine (produced by the fibroblastsv).
This fibroblasts synthetize fibers of collagen as an extension of the cytoskeleton, coats of fibers
are planned in the same direction since centromeres towards the suburb, the microfibrils of actine are
also set at the same time as these fibers.
A folding of these coats is made with a rotation of the orientation of this protein synthesis, at the
rate of an angle of 90 ° by folding. This intertwining of protein tubes forms a complex labyrinth of collagen
and actine ; the compaction is pronounced. (These bridges have a length of 0,4.10-7 m and a width of