Hydrolyzed cornstarch

The saccharides in the sample shown in Figure 7-31 were produced by hydrolyzing cornstarch, resulting in a mixture of sugars containing from 1 to 10 simple saccharide repeating units. To provide adequate resolution of this complex sample with reasonable retention times, the flow rate was gradually... 

Hydrolyzed cornstarch is converted to dextrose (o-glucose), which is then partially isomerized into fructose. This moisture is further refined and concentrated for sale as HFCS. 

The type and composition of dietary carbohydrates varies greatly among different food products. Dietary carbohydrates can be predominantly found in the form of sugar (monosaccharides and disaccharides) and starch or nonstarch polysaccharides. Furthermore, in the food industry they can be used in the form of hydrolyzed cornstarch, high-fructose com syrups, modified starches, gums, mucilages, and sugar alcohols. 

This paper deals with the acid hydrolyzates of cornstarch and sorghum starch. Acid hydrolyzates of other starches are equally adaptable but are of lesser importance in the United States because of economic considerations the same may be said of malt and maltose sirups made by enzymic hydrolysis. 

Spray-dried hydrolyzed starch sirups made from potato or cornstarch have been used in Germany to replace cane or beet sugar (7). They were first used in fresh sausage in 1950 and later in cured products. Gisske (5) found that where dried starch sirup was used in sausage, the moisture loss in processing was 8 to 10% less. Optimum amounts were between 0.2 and 0.3%. Larger amounts affected the flavor adversely. 

The cereal seeds, tubers, starch storage roots, and bean/pea seeds are directly consumed as food in human diet or animal feed and are used as a source of starch. Extracted starch can be used to produce starch derivates or hydrolyzed to produce soluble sugars, food additives, or glucose syrup. Also, extracted starch can be used for other applications in nonfood industries (Nghiem et al. 2011). For example, it is used as a thickener and as a source of renewable raw material for bioethanol production. The major source of starch for the world market is cornstarch holding more than 80 % of the market, but wheat, potato, cassava or tapioca, and to a lesser extent rice and sweet potato starches are also commercialized (Thomsen et al. 2008). 

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