Article (Scientific journals)
Evaluation of different hydrocolloids to improve dough rheological properties and bread quality of potato-wheat flour
Liu, Xingli; Mu, Taihua; Yamul, Karim Diego et al.
2017In Journal of Food Science and Technology, 54 (6), p. 1597–1607
Peer reviewed
 

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Keywords :
Dough property; Hydrocolloids; Protein structure; Specific volume; Texture; Thermal characteristics
Abstract :
[en] The aim of study was to investigate the effect of hydroxylpropylmethylcellulose (HPMC), arabic gum (AG), konjac glucomannan (KG) and apple pectin (AP) at 2% (w/w, potato-wheat flour basis) on the potato-wheat dough (the mass ratio was 1:1) rheological, fermentation properties and its bread quality. The tan δ of potato-wheat dough was significantly increased by adding HPMC compared to those of without adding hydrocolloids (from 0.337 to 0.425), which was close to wheat dough (0.531). Moreover, the dough height during fermentation process was significantly improved by adding hydrocolloids, with the order of HPMC (23.1mm) > AP (19.3mm) > AG (18.6mm) > KG (13.6mm). In addition, the potato-wheat protein bands of potato-wheat dough turned pale by adding hydrocolloids, suggesting higher molecular weight aggregation formed between proteins-hydrocolloids or proteins-proteins after fermentation process. Furthermore, HPMC significantly increased specific volume (from 1.45 to 2.22 ml/g), and hydrocolloids restrained the starch retrogradation of potato-wheat breads.
Disciplines :
Food science
Chemistry
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Liu, Xingli ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol. (Paysage)
Mu, Taihua
Yamul, Karim Diego
Sun, Hongnan
Zhang, Miao
Chen, Jingwang
Fauconnier, Marie-Laure  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes
Andrea
Language :
English
Title :
Evaluation of different hydrocolloids to improve dough rheological properties and bread quality of potato-wheat flour
Publication date :
2017
Journal title :
Journal of Food Science and Technology
ISSN :
0022-1155
eISSN :
0975-8402
Publisher :
Springer
Volume :
54
Issue :
6
Pages :
1597–1607
Peer reviewed :
Peer reviewed
Name of the research project :
Research Project: Research and Demonstration of Key Technology System of Potato Staple Food (201503001-2)
Funders :
Public Welfare Industry (Agriculture)
Agricultural Special Financial in 2015 of China
Central Public-interest Scientific Institution Basal Research, Fund: Research and Application of Tailored Flour for Potato Staple Foods (Y2016PT21).
ULiège GxABT - Université de Liège. Gembloux Agro-Bio Tech
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