Physicochemical and Rheological Properties of Sangak Bread with Oleaster Flour

Raftani Amiri, Zeynab; Aghakeshipour, Zaker

doi:10.22101/JRIFST.2023.330383.1393

Physicochemical and Rheological Properties of Sangak Bread with Oleaster Flour

Document Type : Original Paper

Authors

Department of Food Science and Technology, Faculty of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Sari, Iran

10.22101/JRIFST.2023.330383.1393

Abstract

Bread is one of the foods that is dominant food of the people. Among the bread consumed, sangak bread is important because of its nutritional value. Oleaster is a substance with the scientific name of Elaeagnus angustifolia and belongs to the Elaeagbaceae family. This fruit has a wide nutritional value and recent research indicates its therapeutic properties. This fruit is widely used in the food industry. In this research, physicochemical and rheological properties of sangak bread whit oleaster flour were evaluated. In this study, zero, 5, 10 and 15% of oleaster flour were used in the formulation of sangak bread and during storage for 6 days, some of qualitative characteristics were measured and compared to control sample. These properties included: moisture percent, pH, acidic value, total phenol, protein, total sugar, fiber, wet gluten, sedimentary number and rheological tests of dough. The results showed that an increase in the percent of oleaster flour led to an increase in total sugar, protein content, total phenol, fiber and acidity as well as a decrease in the pH. Also, its rheological properties such as water absorption percentage (due to the presence of fiber in oleaster flour) and the stability of the dough increased, also the development time and the softening degree of the dough decreased, which indicates the high tolerance of the dough for fermentation. The results of this study showed that by adding oleaster flour up to 15% in the sangak bread formulation, a product with high nutritional value can be presented to the consumer market.

Keywords

Main Subjects

Food Processing

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