Structural and physicochemical properties of granular starches after treatment with debranching enzyme

Li, Ping, He, Xiaowei, Dhital, Sushil, Zhang, Bin and Huang, Qiang (2017) Structural and physicochemical properties of granular starches after treatment with debranching enzyme. Carbohydrate Polymers, 169 351-356. doi:10.1016/j.carbpol.2017.04.036

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Author Li, Ping
He, Xiaowei
Dhital, Sushil
Zhang, Bin
Huang, Qiang
Title Structural and physicochemical properties of granular starches after treatment with debranching enzyme
Journal name Carbohydrate Polymers   Check publisher's open access policy
ISSN 0144-8617
1879-1344
Publication date 2017-08-01
Sub-type Article (original research)
DOI 10.1016/j.carbpol.2017.04.036
Open Access Status Not yet assessed
Volume 169
Start page 351
End page 356
Total pages 6
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Subject 1605 Organic Chemistry
2507 Polymers and Plastics
2505 Materials Chemistry
Abstract The present study modified maize and potato granular starches by partial debranching treatment below the gelatinization temperature, and investigated their structural and physicochemical properties. Pullulanase was much effective (more than three times) on hydrolyzing potato starch compared to maize starch as measured from total carbohydrate values in the supernatant. The pullulanase hydrolysis decreased the amount of double helices as observed from DSC measurement. These effects were dependent upon the time of enzyme hydrolysis (24 h > 8 h > 1 h) as well as type of starch (potato > maize). The pullulanase hydrolysis decreased the peak viscosity of the potato starch paste, whereas the effect was very less pronounced for maize starch. The current results showed that it is possible to achieve the starches with desired physicochemical properties by varying the starch type as well as modification process.
Keyword Maize starch
Physicochemical properties
Potato starch
Pullulanase
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Alliance for Agriculture and Food Innovation
 
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