Rheological effects of high substitution levels of fats by inulin in whole cassava dough: chemical and physical characterization of produced biscuits
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Inulin has been used as a fat substitute in baked goods due to its gelling properties and functionality. However, it usually has been done in low substitution levels. The aim of this study was to evaluate the effect in rheological parameters in cassava dough caused by high substitution levels of fats by inulin. Physical and chemical characterization of biscuits were done for evaluation of dough’s potential usage in bakery products. Substitution of mozzarella cheese by inulin showed that up to 12.5 g inulin per 100 g cassava flour led to a lower storage modulus, suggesting bakery potential for bread like products. Higher substitutions (25 g, 37.5 g, and 50 g per 100 g cassava flour) led to a higher storage modulus and suggest a potential for cookies and similar products. Hardness results obtained support rheological ones, suggesting higher substitution levels are suitable for cookies and similar products. This is inferred by observing an increase in hardness ranging from 5.80 N up to 17.47 N. Cassava dough with fat substituted by inulin in high levels, has potential in the development of different baked goods.
KeywordsInulin Fat substitution Cassava Dough Storage modulus
This work was financed by the Mexican Consejo Nacional de Ciencia y Tecnología (CONACYT) through a graduate studies scholarship. Grateful acknowledgements are due to Ms. Ada Longoria for technical help.
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