GLUTEN‐FREE TRADITIONAL TURKISH NOODLE WITH MACROLEPIOTA PROCERA MUSHROOM: FUNCTIONAL, TEXTURAL, THERMAL AND SENSORY CHARACTERISTICS

A New Approach for the Development and Optimization of Gluten-Free Noodles Using Flours from Byproducts of Cold-Pressed Okra and Pumpkin Seeds

The significant protein and dietary fiber content of cold-pressed pumpkin (PSF) and okra (OSF) seed byproducts are well-known. However, their impact on noodles' nutritional quality has never been studied. For the first time, noodle formulation was developed employing a genetic algorithm in the R programming language to achieve the most optimal sensory attributes as well as nutritional composition, color, cooking, and textural properties. The optimized noodle formulation was detected for OSF, PSF, gluten-free flour, salt, and egg with the following amounts: 11.5 g, 87.0 g, 0.9 g, 0.6 g, and 40 g, respectively, with 10.5 mL of water. The total protein (TP%), total fat (TF%), total carbohydrate (TC%), total dietary fiber content (TDF%), ash (%), total phenolic content (TPC mg GAE/100 g), and ABTS (%) of PSF were found to be 39%, 17%, 7%, 18%, 3%, 19%, and 48%, respectively, whereas for OSF, 33%, 8%, 21%, 32%, 5%, 16%, and 38%, respectively, were detected. In addition, TP (42.88%), TF (15.6%), ash (5.68%), TDF (40.48%), TPC (25.5 mg GAE/100 g), and ABTS (70%) values were obtained for the noodles. Consequently, the valorization of the cold oil press industry's byproducts may be used as ingredients that add high value to gluten-free protein and fiber-rich noodle production, and they may gain interest from both processors and consumers.

Evaluation of Physicochemical, Functional, and Sensorial Characteristics of Gluten-Free Turkish Noodle “Erişte” Formulated with Oat and Quinoa Flours

This study aimed to develop and characterize the new gluten-free erişte formulated by using oat flour (100%), quinoa flour (100%), and oat + quinoa flour blend (50% + 50% by weight). The physicochemical, functional, and sensorial properties of developed gluten-free eriştes were evaluated. The moisture content values of gluten-free erişte samples were lower than 12% wet basis (w.b.). The highest ash (3.74 ± 0.63%), fat (8.17 ± 0.19%), and protein (18.74 ± 0.41%) content values were obtained for quinoa flour erişte. The highest water (76.67 ± 9.07%) and oil holding capacity (49.50 ± 7.78%) values were observed for quinoa flour erişte and oat + quinoa flour erişte samples, respectively. The highest brightness ( $L\ast$ ) value was observed for oat + quinoa flour erişte ( $p<0.05$ ). The quinoa flour erişte sample has the highest weight (354.22 ± 20.14%) and volume (268.20 ± 9.01%) increase values. The lowest (10.56 ± 1.83%) and highest (13.71 ± 0.83%) cooking loss values were observed from oat flour and quinoa flour erişte samples, respectively. In the light of the findings, it can be concluded that both oat and quinoa flours and their mixtures can be used to make gluten-free erişte, and the erişte samples were liked by the panelists.