Rice has supported the eating habits of the Japanese as important grain resource since old times. Recently, it received attention by several bioactive substances containing in rice.
Okayasu Shoten Co., Ltd. researches and develops about rice for a long time, and produced many effective ingredients like γ-Oryzanol, Rice Sphingolipid, Octacosanol, Sterol Glycoside and so on. These products are highly evaluated a medicine, health food, food additive, and cosmetics, and then are applied in many fields.
Okayasu Shoten Co., Ltd. offers relief and safety products from rice bran of 100% domestic origin.
Our Gamma-oryzanol has been sold for thirty years as an ingredient of "Hi-Z" sold by Otsuka Pharmaceutical Co., Ltd. for physicians' use.
The effectiveness, quality, and safety of this ingredient havebeen evaluated quite highly. Our market share of the Gamma-oryzanol preparation for curative medicine iscurrently approximately 90 percent.
Gamma-oryzanol is a mixed-plant steroid consisting of sterol indigenous to rice and ferulic acid ester of trimethylsterol. The proportion of component substances creates differences in effectiveness and characteristic features.
Our company has the technical know-how to control the proportion of component substances. We can make sure that each of Gamma-oryzanol A, B, and C has its own specific composition ratio according to its own intended use.
2. PEACH CERAMIDE
Peach ceramide is newly developed product its made from fresh peach.
Peach ceramide is able to used for various purposes such as beauty products, nutritional supplement, functional food ingredients. It is made for young and old alike, as an intense moisturizer for improvement barrier function in their skin.
3. Rice bran sphingoglycolipid (INCI registration)
It has already been fifteen years since we succeeded in extracting high-purity sphingoglycolipid from rice bran in an industrial way for the first time in the world.
Since we extract sphingoglycolipid from rice that is a natural product and familiar to the Japanese, it is safer than that of animal origin. We have already commercialized a one-percent sphingoglycolipid solution. (We make sure that the volume of sphingoglycolipid contained in the solution is high enough to be effective.) Iwase Kosfa Inc. sells it as "Plant Sphingo Solution FR1", and the sales volume increases annually. We also prepare food materials for health food and food additives.
4. PHYTOSPHINGO FR-1
Keratinoprotein and intercellular lipids are the main constituents of stratum corneum (SC) in uppermost layer of epidermis that act as barrier function. SC is an organ plays an important role in maintaining life for biomechanism.
This barrier internally prevents water-evaporation and controls moisture in the living cells and, it also externally scatters UV rays, absorbs physical shock in order to protect biomechanism against damage and hinders invasion of foreign bodies (chemical substances) from outside.
Thus, it is said that intercellular lipids play the important roles to maximize these functions.
Intercellular lipids, consisting of cholesterol and sphingoglycolipid as the main components from lamellar crystal liquid structures. Intercellular lipids play the part the part as follows;
(1) Adhering, cornifying cells each other.
(2) Prevening water-evaporation.
(3) Resisting invasion of living cells by foreign bodies.
The recent reports indicate that intercellular lipids decrease with the advancement of aging and deteriorate significantly in quantities under such conditions as rough skin, atopic derma and xerosis senilis.
PHYTOSPHINGO FR-1 is an aqueous basal material in the form of 1% dispersed liquid of phytosphingoglycolipid derived from refined rice extraction, easy to apply to cosmetic formulations. Sphingoglycolipid penetrates well into SC, holds water and is said to keep SC supple. In comparison with that of animal origin, it has good skin affinity and little odor. It also displays a characteristic of not having any mingling with hormone-like substance nor glycerophospholipid, etc..
Phytoshpingoglycolipid contained in this product has a refined purity of not less than 90% of the chemical compound mentioned below;
Octacosanol is saturated higher-grade alcohol. We extract octacosanol from wax contained in rice oil and purify it using alcohol. Even though the octacosanol is a higher-grade alcohol that is slightly soluble in water, it is reported to be effective for lack of oxygen, blood circulation, and other symptoms. In the United States, the octacosanol is used as a health food for athletes. We also make a water-soluble powder used to create drinks such as Nearwater.
6. SESAMO LIGNAN
Sesamorin and sesamin enrichment and crystal
7. FERULIC ACID
Ferulic Acid has antioxidant properties, responded by reactive oxygen species like free radical. It has been expected to the various functions such as antitumor activity, ultraviolet absorption feature, beauty effect, food antioxidant, a decrease blood sugar level, improvement brain functions.
OKAYASU SHOTEN CO., LTD has succeeded to produce of high purity Ferulic Acid with unique technological skills.
In addition, we will meet your request to extract oil and fat content and minor constituents from plants as well as manufacturing of your product including preparation (like supplements) according to your needs.