Since 1980s, in view of the decline of the Japanese silk industry, the research on the new role of silk has gradually attracted people’s attention. Perfected in the preparation of silk fibroin, fibroin structure types, features, and in the medical, enzyme engineering, food, protect skin to taste the function such as gradually clear. To the late 80 s, silk protein in food, skin care applications has reached practical level.
Safety of silk protein in use
Mammal-derived protein nutritional supplements used in skin care products are mostly animal placenta extract and silk protein. Most of the mammalian placental extract is made of bovine and sheep placenta, which is obtained by enzymatic decomposition. Its composition is very complex and contains some physiological active substances, so there are also reasons for insecurity. In view of the recent years some countries regions in the world constantly appear mad cow disease and foot and mouth disease, starting in March 2000, the domestic has restricted the contain animal ingredients of cosmetics imported raw materials.
Silk protein is mostly waste cocoon as raw material, excluding heavy metals and other organic matter which are physiologically active ingredients and may cause harm to the body. It is generally attached to sericins. With the help of degelatinized silk protein, it has basically no effect on the body.
Whether silk fibroin protein can protect skin and eat
Most of the domestic units, have done the relevant safety testing. In 1998, Zhejiang Silkworm Research Institute carried out a skin care product “comfort cream” with silk protein as raw material, which was tested by guinea pig skin allergy test, allergic reaction test and skin acute toxicity test. It was proved that the product was non-toxic, non-irritating and non-allergenic to skin. Shaanxi aggie etc, also the silk protein food toxicology test, the test results as follows: according to the food safety quality toxicology evaluation program, acute poisonous weeds classification standard, silk protein is a harmless level.
It can be concluded that silk fibroin is healthy, safe and harmless when used in food and cosmetics.
Post time: Dec-19-2023