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Effects of HPMC, MC, and Sodium Alginate on Rheological Properties of Flour Dough
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HPMC, MC, sodium alginate 등의 증점제가 밀가루 반죽의 레올로지 특성에 미치는 영향

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Type
Academic journal
Author
Mi-Young Kim (건국대학교) Mi-Sug Yun (을지대학교) Jeong-Hoon Lee (건국대학교) Si-Kyung Lee (건국대학교)
Journal
Korean Society of Food Science and Technology Korean journal of food science and technology Vol.40 No.4 KCI Accredited Journals SCOPUS
Published
2008.8
Pages
474 - 478 (5page)

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Effects of HPMC, MC, and Sodium Alginate on Rheological Properties of Flour Dough
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This study was carried out to evaluate the rheology of flour doughs containing 0.5% of hydroxypropylmethylcellulose (HPMC), methylcellulose (MC), and sodium alginate (SA), respectively. Farinograms, alveograms, a rapid visco analyzer (RVA), and rheofermentometer were employed in the analysis. According to the farinogram tests, the hydrocolloid additions caused changes in water absorption, dough development time, stability, and breakdown. The dough containing HPMC had the highest water absorption at 67.4±0.12%. The HPMC dough also had the longest development time (8.2±1.04 min), stability (12.7±0.42 min), and breakdown (7.9±1.3 min). From the alveogram tests, P, G, and P/L values increased, whereas the L value decreased. The W values of the HPMC and SA doughs were increased, but that of the MC dough was decreased. According to the RVA results, the HPMC and SA doughs had reduced initial pasting temperatures whereas that of the MC dough was increased, but the difference was not significant. The peak viscosity of the MC dough also increased. Furthermore, all the doughs had increased breakdown times and decreases in final viscosity and setback. In the rheofermentometer tests, the HPMC dough presented the highest H<SUB>m</SUB>, and the SA dough had the largest total volume.

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