Effect of high pressure soaking on water absorption, gelatinization, and biochemical properties of germinated and non-germinated Foxtail millet grains

Sharma, N., Goyal, S. K., Alam, T., Fatma, S., Chaoruangrit, A. and Niranjan, K. ORCID: https://orcid.org/0000-0002-6525-1543 (2018) Effect of high pressure soaking on water absorption, gelatinization, and biochemical properties of germinated and non-germinated Foxtail millet grains. Journal of Cereal Science, 83. pp. 162-170. ISSN 0733-5210 doi: 10.1016/j.jcs.2018.08.013

Abstract/Summary

Foxtail millet, extensively grown in Asia, Africa and China, is one of the few crops that can thrive under relatively few agricultural inputs and have valuable amount of nutritional components. Therefore, processing of foxtail millet for value addition to various food products can significantly help in economic development as well as enhancing food and nutritional security. This study deals with the effect of high pressure soaking on water uptake, gelatinization characteristics, and nutritional and anti-nutritional properties of foxtail millet grains and its flour. The results demonstrated that high pressure soaking of germinated foxtail millet grains significantly increased the water uptake, thereby increasing the degree of starch gelatinization of the flour to attain a maximum value of 64.93%. The effective diffusion coefficient of water was found to increase with increasing pressures and temperatures, reaching maximum value of 6.77×10-9 m2s-1 for germinated foxtail millet grains treated at 200 MPa and 60 oC. In terms of nutrient content of germinated foxtail millet grain flour, the total phenolic content and antioxidant activity (FRAP assay) improved significantly, although the protein content did not vary significantly. Further, the levels of anti-nutrients (phytic acid and tannin) decreased with high pressure soaking, which conclusively establishes that the quality of foxtail millet grains and its flour can be improved by using high pressure soaking.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/79842
Identification Number/DOI	10.1016/j.jcs.2018.08.013
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food Research Group
Publisher	Elsevier
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