The safety of sodium acid pyrophosphate has been evaluated by various food safety authorities, including the U.S. Food and Drug Administration (FDA). SAPP is Generally Recognized As Safe (GRAS) when used in accordance with good manufacturing practices. This classification indicates that it is considered safe for consumption in the amounts typically found in food products.
The general consensus is yes. The U.S. Food & Drug Administration (FDA) and the watchdog organization CSPI agree that potassium sorbate is generally safe to consume. The additive doesn't accumulate in the body — instead, it breaks down into carbon dioxide and then water in the body, according to the Encyclopedia of Food Sciences and Nutrition.
The primary raw material for MSG production is glutamic acid, an amino acid that can be derived from various sources. Traditionally, glutamic acid was extracted from protein-rich foods like meat and fish. However, modern production methods favor the fermentation process using carbohydrates as a substrate. Common sources include starch, sugar, and molasses, which provide the necessary sugars for fermentation. The carbohydrate sources, primarily obtained from corn or sugarcane, are first hydrolyzed to convert starches into fermentable sugars.