Consumption of silk protein, sericin
elevates intestinal absorption of zinc, iron, magnesium and calcium in rats.
Each silk fiber composed of at least 2 main proteins; sericin
Further, electrophoretic variation in the fibroin and sericin
of the silkworm larvae was also reported by Gamo .
These protein threads are adhered together with a sericin
protein gum resulting in a single thread about 10 to 25 diameters.
It is a fibrous protein with a molecular weight of 25-300 kDa, which corresponds to 70% of the cocoon weight, the rest being essentially composed of sericin
, a globular protein that binds the fibroin filaments together.
Natural polymers included casein, keratin, gelatin, collagen, silk fibroin, and sericin
. Due to the safety, nontoxicity, stable performance, good biocompatibility, and low price for the natural polymer, it had received more and more attention in recent years.
mori were de-gummed by boiling twice in 0.5% [Na.sub.2]C[O.sub.3] solution at 95 [degrees]C for 30 min to remove sericin
, then rinsed with distilled water and dried at room temperature.
INCI: Water (and) linum usitatissimum (linseed) seed extract (and) polyquaternium-7 (and) sericin
(and) fibroin (and) guar hydroxypropyltrimonium chloride (and) hydroxypropyl starch phosphate
The degummed silk was washed thoroughly with deionized water for 30 min to remove any remaining sericin
and surfactants, and then gently dried in air.
Silk in its natural form is composed of a filament core protein, silk fibroin, and a glue-like coating consisting of sericin
 Lee, K., Kweon, H.Y., Yeo, J.H., Woo, J., Lee, Y.W., Cho, C.S., Kim, K.H., Park, Y.H., 2003, "Effect of methyl alcohol on the morphology and conformational characteristics of sericin
Key ingredients include Amisil, a silicone and amino based ingredient that reduces volume, improves softness and aids thermal protection; Polisil, an active conditioning ingredient that easily adheres to damaged hair strands and helps define clusters, hydration and reduces frizz; creatine, a microparticle penetrates deep into the fibers, recovering hair damaged by chemical and physical processes, increasing hair fiber resistance; sericin
, an amino acid to rebuild chemically-processed hair for long-lasting softness; keratin; panthenol; and cotton and linen oil, which improves workability and manageability.