Abstract：
:Octenylsuccinic anhydride (OSA)-modified starches with a low (0.018) and high (0.092) degree of substitution (DS) were prepared from granular native waxy maize starch in aqueous slurry. The position of OS substituents along the starch chains was investigated by enzyme hydrolysis followed by chromatographic analysis. Native starch and two OS starches with a low and high DS had β-limit values of 55.9%, 52.8%, and 34.4%, respectively. The weight-average molecular weight of the β-limit dextrin from the OS starch with a low DS was close to that of the β-limit dextrin from native starch but lower than that of the β-limit dextrin from the OS starch with a high DS. Debranching of OS starches was incomplete compared with native starch. OS groups in the OS starch with a low DS were located on the repeat units near the branching points, whereas the OS substituents in the OS starch with a high DS occurred both near the branching points and the non-reducing ends.
journal_name
Food Chemjournal_title
Food chemistryauthors
Bai Y,Kaufman RC,Wilson JD,Shi YCdoi
10.1016/j.foodchem.2013.12.012subject
Has Abstractpub_date
2014-06-15 00:00:00pages
193-9eissn
0308-8146issn
1873-7072pii
S0308-8146(13)01867-0journal_volume
153pub_type
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