Premium white colorant

In 2010, about 12 billion pounds of titanium dioxide was produced in the world however, only about 1% of this output was used in rubber. In the 1970s about 3% of tbe titanium dioxide produced was used in rubber when white sidewall tires were popular. However, while raised white letter tires are still popular, white sidewalls have dropped in popularity. Titanium dioxide is also the premium white colorant for many nontire rubber products as well. 

Pure vegetable shortening quickly assumed a position of preeminence and was accepted as a premium product both by the housewife and the commercial user or baker. The bland flavor, uniform white color, and smooth texture were probably the prime factors influencing acceptance by the consumer. Undoubtedly, these factors also influenced the bakers, but the deciding factors were the increased stability and the improved creaming properties (4). 

During yuba production, protein and lipid contents in the film successively formed decrease, while the carbohydrate and ash contents gradually increase. Therefore, the first several pieces of yuba to be lifted off the heated soymilk are considered premium products. They have creamy white color, mild flavor, and less sweet taste. They stay relatively soft and flexible even when dried. The later formed products are regarded as second rate, because they become sweeter with a faintly reddish tinge, lack internal cohesiveness, tear more easily, and become brittle upon drying. 

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