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The acid‐modification of a regular potato starch (PS) using the slurry process is systematically investigated. The hydrolysis parameters temperature (30, 40, and 50 °C), acid concentration (0.3, 0.6, and 0.9 M HCl), and reaction time (4, 10, and 20 h) are graded, and characteristics regarding the modification process as well as the resulting acid‐thinned samples are analyzed based on size exclusion...
Starch oleate is synthesized in an aqueous medium using lipase from the yeast Cryptococcus sp. MTCC 5455. The optimum conditions of esterification are found at 24 h and 30 °C with an oleic acid/starch molar ratio of 1:2 using 500 U of lipase and the degree of substitution was 0.26. Spectral techniques confirm the presence of oleate group in the modified potato starch. Scanning electron microscopic...
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