Zheng, Bo, Tang, Yukuo, Xie, Fengwei and Chen, Ling (2022) Effect of pre-printing gelatinization degree on the structure and digestibility of hot-extrusion 3D-printed starch. Food Hydrocolloids, 124 (Part A). 107210. doi:10.1016/j.foodhyd.2021.107210

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Abstract

Hot-extrusion 3D printing (HE-3DP) is an emerging technique to create customized food with desired structure and properties. This research is focused on the effect of pre-printing gelatinization degree on the structure and digestibility of rice and wheat starch gels after HE-3DP. The results show that the lamellar, crystalline and helical structures were destroyed, the compactness of nano-aggregates formed decreased significantly, the content of semi-bound water in the gel system increased, and the content of bound water decreased, and these changes were more significant with an increasing gelatinization degree. Interestingly, the ideal printability and digestion resistance of the printed materials could be obtained with the pre-printing gelatinization degrees of rice and wheat starches being 50% and 40%, respectively. Overall, the pre-printing gelatinization degree has been found to be an important factor in regulating the printability and digestibility of starch during HE-3DP.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology T Technology > TS Manufactures
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH):	Three-dimensional printing -- Materials, Extrusion process, Starch -- Extrusion, Gelation , Starch , Starch industry
Journal or Publication Title:	Food Hydrocolloids
Publisher:	Elsevier
ISSN:	0268-005X
Official Date:	March 2022
Dates:	Date Event March 2022 Published 23 September 2021 Available 21 September 2021 Accepted
Volume:	124
Number:	Part A
Article Number:	107210
DOI:	10.1016/j.foodhyd.2021.107210
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID 31871751 [NSFC] National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809 201804020036 Key Technologies Research and Development Program of Guangzhou http://dx.doi.org/10.13039/501100013068 2021M691069 China Postdoctoral Science Foundation http://dx.doi.org/10.13039/501100002858

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