Abstract: A method for preparing a purple sweet potato concentrate that is free from starch, rich in anthocyanins, phenolic compounds, minerals, and soluble dietary fiber with low viscosity, attractive color, and with natural sweetness is presented. The method first prepares and liquefies the purple sweet potatoes and fixes the colorization by adjusting the pH value. Next, amylase and an enzyme complex of hemicellulase, pectinase, cellulase, glucoamylase and protease are added in sequence under conditions effective to produce the juice with the above mentioned properties. The juice is then centrifuged and membrane-filtered to produce a purified purple sweet potato juice which is vacuum-concentrated to yield a purple sweet potato concentrate. Purple sweet potato powder can be obtained by vacuum drying the sediment and concentrate mixture.

Abstract: A method for preparing a purple sweet potato concentrate that is free from starch, rich in anthocyanins, phenolic compounds, minerals, and soluble dietary fiber with low viscosity, attractive color, and with natural sweetness is presented. The method first prepares and liquefies the purple sweet potatoes and fixes the colorization by adjusting the pH value. Next, amylase and an enzyme complex of hemicellulase, pectinase, cellulose, glucoamylase and protease are added in sequence under conditions effective to produce the juice with the above mentioned properties. The juice is then centrifuged and membrane-filtered to produce a purified purple sweet potato juice which is vacuum-concentrated to yield a purple sweet potato concentrate. Purple sweet potato powder can be obtained by vacuum drying the sediment and concentrate mixture.

Abstract: Gynostemma extract compositions containing gynostemma extract and at least a carrier liquid are used as cleaning agents, emulsifiers, skin care products, and foaming agents. The gynostemma extract alone or together with other herbal extracts is mixed with water, glycerin, or a mixture of water and glycerin to produce the surfactant composition. The extracts have distinctive surface tension altering functions, reducing the surface tension of aqueous solutions and allowing foam formation, micelle formation, and emulsification with oil, dirt and water insoluble substances, and may also be used as an emulsification agent with other ingredients in cosmetic or personal care products.

Abstract: A process for the production of naturally and organically fermented glycerin includes cleaning and sanitizing of the fermentation equipment prior to fermentation without using any traditional synthetic organic hydrocarbon-based chemicals. The fermentation process uses a non-chemical nutrient and nitrogen source from natural proteins during the fermentation to reduce trace amounts of toxins or contaminants. A purification stage following the fermentation process increases the purity of the glycerin to a desired level.

Abstract: Gynostemma extract compositions containing gynostemma extract and at least a carrier liquid are used as cleaning agents, emulsifiers, skin care products, and foaming agents. The gynostemma extract alone or together with other herbal extracts is mixed with water, glycerin, or a mixture of water and glycerin to produce the surfactant composition. The extracts have distinctive surface tension altering functions, reducing the surface tension of aqueous solutions and allowing foam formation, micelle formation, and emulsification with oil, dirt and water insoluble substances, and may also be used as an emulsification agent with other ingredients in cosmetic or personal care products.