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Effect of pH parameter on succinylated white acha (Digitaria exilis) starch
Abstract
Acha (Digitaria exilis) starch was extracted, succinylated using succinic anhydride (9 g/100 g) and the degree of substitution determined. The moisture content differences were determined between native and succinylated white acha starch. The degree of substitution (DS) property increased appreciably as the pH of the reaction increases. Maximum DS of 0.36 was observed at pH 10. The moisture content for NAS (Native Acha Starch) and SAS (Succinylated Acha Starch) determined were 19.32% and 13.60% respectively. The FTIR spectrum revealed new band in the succinylated starch at 1552.20cm-1, which is attributed to the carboxyl functional group vibration. Succinylated White Acha starch, therefore holds great promise as a good and cheaper replacement for gums in food applications.
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Arueya G. and Oyewale T., (2015). Effect of varying degrees of succinylation on the functional and morphological properties of starch from acha (Digitaria exilis Kippis Stapf). Food Chem., 177: 258-266.
Awokoya K., Nwokocha L., Moronkola B. and Moronkola D.O., (2011). Studies on the isolation, structural and functional properties of Starch Succinate of Cocoyam (Colocasia antiquorum). Der Chemica Sinica, 2(6):228-244.
Babić J., Šubarić D., Ačkar Đ., Kovačević D., Piližota V., and Kopjar M., (2007). Preparation and characterisation of acetylated tapioca starches. Dtsch. Lebensm. Rundsch., 103, 580–585.
BeMiller J., (2011). Pasting, paste, and gel properties of starch–hydrocolloid combinations. Carbohydr. Polym., 86, 386–423.
Betancur A., Chel A., and Canizires H., (1997). Acetylation and Characterization of Canavalia ensiformis Starch, Journal of Agriculture and Food Chemistry, 45(2): 378-382.
Chi H., Xu K., Wu X., Chen Q., Xue D., Song C., Zhang W., and Wang P., (2008). Effect of acetylation on the properties of corn starch. Food Chem., 106, 923–928.
Jideani A., and Akingbala J., (1993). Some physicochemical properties of Acha (Digitaria exilis Stapf) and Iburu (Digitaria iburua Stapf) grains. J. Sci. Food Agric., 63: 369-374.
Jideani I., and Jideani V., (2011). Developments on the cereal grains Digitaria exilis (acha) and Digitaria iburua (iburu) J. Food Sci. Technol. 48(3): 251-259.
Joel M., (2010). A Review of the partial replacement of element with Agro-waste, University of Agriculture, Civil Eng. Department, P.M.B. 2373 Makurdi, Nigeria.
Jones J., (2009). The Second C&E Spring meeting and Third International Whole Grain Global Summit. Cereal Foods World. 54:132-135.
Lawal O., (2004). Composition, physicochemical properties and retrogradation characteristics of native, oxidised, acetylated and acid thinned new cocoyam (Xanthosoma sagittifolium) starch. Food Chemistry; 87: 205–218.
Lawal O., (2004). Succinyl and acetyl starch derivatives of a hybrid maize: physicochemical characteristics and retrogradation properties monitored by differential scanning calorimetry. Carbohydrate 339, 2673 – 2682.
Lawal O. and Adebowale K. (2005). Physicochemical characteristics and thermal properties of chemically modified jack bean (Canavalia ensiformis) starch. Carbohydrate Polymers; 60: 331–341.
Lawal O., Lechner M. and Kulicke W. (2008). The synthesis conditions, characterizations and thermal degradation studies of an etherified starch from an unconventional source. Polymer Degradation and Stability; 93: 1520– 1528.
Olayinka O., Olu-Owolabi B., and Adebowale K., (2011). Effect succinylation on the physicochemical, rheological, thermal and retrogradation properties of red and white sorghum starches. Food Hydrocoll., 25, 515–520.
Singh V. and Ali S. Z. (2000) Acid degradation of starch. The effect of acid and starch type. Carbohydrate Polymers; 41: 191-195.
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