Silk protein is a specialty ingredient in hair and skin preparations. It is known for outstanding moisture-retention properties and silky feel. A hydrolyzed silk protein is made by subjecting silk fibers to akali materials such as diluted sodium hydroxide to produce a material that is water soluble and can be added to soaps and shampoos.
Add the silk fiber to the glass bowl. Add the dilute sodium hydroxide to the fiber in the bowl. Ensure that the liquid covers all of the fibers.
Gently stir the fiber solution with the glass rod for 10 minutes
Place the coffee filter into the small kitchen strainer so there are no gaps.
Slowly pour the fiber solution into the small kitchen strainer and catch the filtrate in the second glass bowl. The cloudy solution in the second bowl is the hydrolyzed silk protein.
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Brian Baer has been writing since 1982. His work has appeared on Web sites such as eHow, where he specializes in technology, management and business topics. Baer has a Bachelor of Science in chemical engineering from the University of Arkansas and a Master of Business Administration from the University of Alabama, Huntsville.