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KMID : 1007520040130010071
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Food Science and Biotechnology
2004 Volume.13 No. 1 p.71 ~ p.74
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Estimation of Resistant Starch Content of High-amylose Corn Starch
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Kim Sung-Kon
Kwak Jae-Eun
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Abstract
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Resistant starch (RS) of autoclaved and cooled amylomaize Ⅶ starch was simply estimated from direct correlation between RS and α-amylase resistant starch (A-RS) of either mixture of Novelose 330 and Corn starch (Mixture Ⅰ) or Novelose 330 and amylomaize Ⅶ starch (mixture Ⅱ). Correction factor of 1.17 and 1.14 were required of r mixture Ⅰ and mixture Ⅱ, respectively, to convert the estimated RS value into AOAC RS content. Swelling power and Rapid Visco Analyser (RVA) peak viscosity of the heat-treated starch and the mixture linearly decreased as RS content increased. RS content of heat-treated starch estimated by the relationship between RS and A-RS of the mixtures was more accurate than that obtained by the relationship between RS and swelling power or RVA peak viscosity of the mixtures.
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