Abstract
In this study, an physico-chemical method and enzymatic improvement were used to extract cassava dietary fiber from cassava residue. α-amylase, glucoamylase, lipase, and protease were added to the physically comminuted cassava residue to remove starch, fat, and protein. Then, with the aid of ultrasound, dietary fiber was bleached with hydrogen peroxide to increase its whiteness. Finally, the cassava dietary fiber was treated with cellulase to increase the amount of soluble dietary fiber. The yield of dietary fiber was 75.63%, 37.55% of which was soluble dietary fiber. Water-holding capacity, water-swelling capacity, and oil-holding capacity of cassava dietary fiber were 4.020 g/g, 2.091 mL/g, and 2.891 g/g, respectively, which were 11.14%, 52.85%, and 9.55% higher than those of raw tapioca. Thus, the physical and chemical properties of the dietary fiber were improved.
Highlights
Cassava, potatoes, and sweet potatoes are called the world’s three major potato crops
This study suggests an effective solution for processing of cassava residue along with production of high-value product, which has broad and significant application prospects
By contrast, when transmittance of dietary fiber decreases, the concentration of the chemical group decreases. This is because, after enzymatic hydrolysis of cassava residue, starch, fat, and protein are hydrolyzed resulting in a decrease in the concentration of some chemical groups
Summary
Potatoes, and sweet potatoes are called the world’s three major potato crops. Cassava was introduced to Gaozhou, Guangdong Province, China in the 1820s and was later introduced into Hainan Island. Hypertension, other cardiovascular problems, diabetes, cancer, and other diseases. It can clean up the intestine and maintain intestinal health. It has a reputation of an “intestinal scavenger” and is known as the seventh nutrient.[14,15] With the improvement of human living standards, the dietary structure appears overnutrition, and the appearance of dietary fiber brings the gospel to human health. From the standpoint of environmental protection, a physico-chemical method and enzymatic improvement were used to extract cassava dietary fiber from cassava residue. This study suggests an effective solution for processing of cassava residue along with production of high-value product, which has broad and significant application prospects
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