Also insoluble in water, sericin C can be separated from the fibroin via the addition of a hot, weak acid.
12.
The presence or sericin increases hydroxyproline in the stratum corneum, which in turn, decrease skin impedance, thus increasing skin moisture.
13.
Sericin has not been completely removed from raw silk threads, which will give a rougher texture to the fabric at the end.
14.
A special manufacturing process removes the outer irritant sericin coating of the silk, which makes it suitable as non-absorbable surgical sutures.
15.
Due to its elasticity and tensile strength, along with a natural affinity for keratin, sericin is primarily used in medicine for wound suturing.
16.
Sericin has a high hydroxy amino acid content which is important for the water-binding capacity which regulates the skin's moisture content.
17.
When used in cosmetics, sericin has been found to improve skin elasticity and several anti-aging factors, including an anti-wrinkle property.
18.
The cocoon, produced after the fourth moult, is covered with a continuous filament of the silk protein, fibroin, gummed together with sericin.
19.
When in the amorphous coil, sericin can also be easily be converted into a ?-sheet conformation, via repeated moisture absorption and mechanical stretching.
20.
Using gamma ray examination, it was determined that sericin fibers are composed typically of three layers, all with fibers running in different patterns of directionality.
