Naslov
Wheat dough rheology and bread quality effected by Lactobacillus brevis preferment, dry sourdough and lactic acid addition

Autori
Koceva Komlenić, Daliborka ; Ugarčić-Hardi, Žaneta ; Jukić, Marko ; Planinić, Mirela ; Bucić-Kojić, Ana ; Strelec, Ivica

Izvornik
International journal of food science & technology (0950-5423) 45 (2010), 7; 1417-1425

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
dry sourdough; Lactobacillus brevis; lactic acid; dough rheology; colour

Sažetak
The influence of chemical and biological acidification on dough rheological properties and bread quality has been investigated. Two different flour types were used. Dough was chemically acidified with lactic acid. Two types of biologically acidified dough were prepared: dough with dry sourdough and with a Lactobacillus brevis preferment. Wheat dough rheological properties were investigated using the Farinograph, Extensograph and Amylograph. The baking response was also determined using standard baking tests. Addition of acidifiers resulted in firmer doughs with less stability, decreased extensibility and decreased gelatinization maximum. The biological acidifiers increased the bread specific volume. Lactic acid addition had no influence on bread specific volume. In general, biological and chemical acidification decreased bread hardness. The addition of dry sourdough significantly decreased the lightness and increased the yellowness and redness of the bread crumb. The crust chroma, hue angle and brownness index were significantly changed by addition of acidifiers.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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