Freezing and subsequent storage of wheat doughs containing Saccharomyces cerevisiae, S. fructuum or Candida boidinii after undergoing a bulk fermentation step, reduced the viability of yeasts, depending on the species. Freezing and storage of doughs without bulk fermentation had no effect on viability. Gassing power was affected most by frozen storage, depending on storage time and species. Changes in acidification capability were small, and only significant for total titratable acidity. Changes in sugars and leavening were closely related. Results showed that the use of less active yeast species (S. fructuum), with high freezing tolerance in frozen dough processes would be of practical interest.
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Tabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, IranTabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, Iran
Fekri, Arezoo
Torbati, Mohammadali
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Tabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, IranTabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, Iran
Torbati, Mohammadali
Khosrowshahi, Ahmad Yari
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Tabriz Univ Med Sci, Drug Appl Res Ctr, Tabriz, Iran
Tabriz Univ Med Sci, Fac Adv Med Sci, Dept Med Nanotechnol, Tabriz, IranTabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, Iran
Khosrowshahi, Ahmad Yari
Shamloo, Hasan Bagherpour
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Tabriz Univ Med Sci, Biotechnol Res Ctr, Tabriz, IranTabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, Iran
Shamloo, Hasan Bagherpour
Azadmard-Damirchi, Sodeif
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Univ Tabriz, Fac Agr, Dept Food Sci & Technol, Tabriz, Iran
Tabriz Univ Med Sci, Food & Drug Safety Res Ctr, Hlth Management & Safety Promot Res Inst, Tabriz, IranTabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Tabriz, Iran