1. Utilization of roasted barley (Hordeum vulgare) and oat (Avena sativa) for the development of functional yogurt with special reference to storage stability
- Author
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Sania Saeed, Ali Ikram, Muhammad Tayyab Arshad, Nabia Ijaz, and Kodjo Théodore Gnedeka
- Subjects
Barley Yogurt ,Oat yogurt ,Fortification ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
The objective of the current study prepare yogurt enriched with roasted barley and oat flour in different treatments. The manual cleaning of oats and barley was carried out and placed in a traditional sand roaster with an iron pan at 280 ± 5°C for 20 seconds. Roasted barley and oat flours were used in different concentrations of 1:0; 3:0; 5:0; 0:1; 0:3; 0:5; 0.5:0.5; 1.5:1.5; and 2.5:2.5 g/100 g, respectively. The prepared yogurt was stored for 28 days at 4°C, and analyzed during the 7-day intervals. The results showed that roasted barley and oat flours contained higher concentrations of proteins (13.72 & 16.61%) and fibers (16.86 & 3.54%), which aided in the improvement of the properties of yogurt. The pH of the prepared yogurt was decreased (4.5 to 4.2), and titratable acidity was increased (0.61 to 0.70%) non-significantly in all treatments. The syneresis rate was decreased (25 to 19%) with increased concentrations of roasted barley and oats during storage. The microbial analysis of the fortified yogurt decreased the total plate count and total yeast count. Concludingly, roasted barley and oats improved the solid contents along with proteins, fats, and fiber contents of the prepared yogurts, improving the nutritional value of yogurt.
- Published
- 2024
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