by Esra Acar and Eda Nur Özcan, Food Engineers, Bastak, Turkey
Wheat is one of the most widely consumed cereal crops worldwide and constitutes the primary raw material for many staple foods such as bread, biscuits, pasta and noodles. As one of the main energy sources in human nutrition, wheat is cultivated across diverse climatic and geographical regions, enabling its widespread consumption on a global scale. This characteristic positions wheat flour not only as a fundamental energy source but also as an effective vehicle for delivering micronutrients to large populations.
When the wheat kernel retains its natural structure, it is rich in vitamins B₁, B₂, B₆ and E, as well as niacin, iron and zinc. However, during milling processes, the outer layers of the kernel—bran and germ—which contain the majority of these vitamins and minerals, are largely removed, leading to significant nutritional losses in flour. Therefore, the reintroduction of certain micronutrients lost during milling is considered an effective strategy for improving the nutritional profile of flour and combating hidden hunger. Moreover, vitamins present within the wheat flour matrix have been reported to exhibit greater stability against high-temperature applications such as baking, allowing better retention of nutritional value.
In industrial flour and bakery product production, not only the preservation of nutritional value but also the standardisation of product quality, improvement of processability and enhancement of production efficiency are of critical importance. In this context, flour improvers have become an integral component of modern food technology. Flour additives are defined as ingredients used to improve the rheological properties of flour, control dough formation and enhance final product quality. They play a particularly important role in minimising raw material–related quality fluctuations in large-scale industrial production.
Among flour additives, dough improvers, enzymes, reducing agents and dough strengtheners are the most prominent. Dough improvers enhance the structure of the gluten network, increasing dough strength and gas retention capacity, thereby improving bread volume and crumb structure. Enzymes act on starch and protein components to enhance fermentation performance and optimise textural properties. Amylases hydrolyse starch to provide fermentable sugars for yeast activity, glucose oxidase strengthens dough structure,and lipases contribute to crumb softness and extended shelf life. These enzymes are incorporated into flour during production and become active upon contact with water, exerting their technological effects during dough processing.
Reducing agents used to improve dough workability regulate the elasticity of the gluten network, facilitating easier shaping, particularly in high-speed production lines. Dough strengtheners, on the other hand, prevent deformation during mixing and fermentation, enabling the production of bakery products with higher volume and more homogeneous pore structures. Through the use of these additives, production time can be reduced, product losses minimied and the shelf life of bakery products such as bread, crackers and biscuits extended.
The use of food additives is subject to strict scientific oversight to ensure consumer safety. Globally, evaluations of food additives are conducted by the Joint FAO/WHO Expert Committee on Food Additives (JECFA), operating under the leadership of the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO). JECFA determines safe consumption levels based on toxicological and carcinogenic assessments and establishes guidelines regarding the permitted use of additives in specific food categories. In the European Union, food additives are regulated by expert authorities within the Union, while in Türkiye, regulations are implemented in accordance with the International Food Codex, European Union legislation and FDA standards.
Within this framework, the scientific evaluation of the technological effects of flour additives and their impact on final product quality is of great importance for both producers and consumers.
One of the major challenges encountered in industrial bakery production is the inconsistent performance of flours with varying quality characteristics. In particular, flours with weak protein structures may exhibit limitations in dough stability, gas retention capacity and final product volume. Functionally formulated flour additives have emerged as an effective solution to mitigate such quality fluctuations.
Sünekat AT, developed by Bastak, is a flour additive specifically formulated to improve the technological properties of weak flours. Its primary mechanism of action involves strengthening the gluten structure and protein bonds within the dough, thereby enhancing dough integrity. This strengthening effect is especially beneficial in flours affected by insect damage or those with low protein quality, where gluten network weakening leads to structural deficiencies. As the gluten network becomes more robust, dough gas retention capacity increases, allowing more efficient retention of carbon dioxide produced during fermentation. This improvement is directly reflected in enhanced bread volume and crumb homogeneity.
The recommended dosage range of Sünekat AT (2–14 g per 50 kg flour) provides flexibility for application across different flour quality levels and enables controlled technological effects. Improvements in gluten and protein structure contribute not only to dough workability but also to the quality of the baked product.
Another flour additive in the Bastak portfolio, Armix 5000, is distinguished by its functional effects on dough rheological behavior. By increasing dough elasticity, Armix 5000 promotes a more balanced dough structure during mixing and fermentation. Enhanced elasticity improves resistance to mechanical stress while supporting gas cell stability, resulting in increased bread volume and a more uniform crumb structure after baking.
Additionally, Armix 5000 facilitates controlled dough relaxation, particularly beneficial in high-speed production lines, reducing surface tearing and shaping irregularities. Its moisture-retention effect helps maintain dough hydration during fermentation and pre-baking stages, positively influencing final product texture and shelf life. With a recommended dosage range of 5–20 g per 50 kg flour, Armix 5000 offers adaptability to diverse processing conditions.
The individual or combined use of Sünekat AT and Armix 5000 helps compensate for intrinsic limitations in flour quality, improving dough rheology and final product performance. Through these additives, the effects of raw material variability can be reduced, enabling more predictable and reproducible production outcomes. Thus, these additives not only enhance technological performance but also contribute significantly to ensuring quality consistency in industrial bakery production.
Materials and Methods
In this study, a controlled experimental design was implemented to evaluate the effects of Sünekat AT and Armix 5000 flour additives produced by Bastak on bread quality. The amount of flour used in bread production was kept constant across all experimental groups and each formulation was prepared using 500 g of flour.
To comparatively assess the effects of the additives, three experimental groups were established. The types and dosages of flour additives used in each group are presented in Table 1.
Table 1:
| Experimental Group | Additive Application |
| D1 | 0.10 g Sünekat AT / 500 g flour |
| D2 | 0.15 g Sünekat AT / 500 g flour |
| D3 | 0.10 g Armix 5000 + 0.30 g Sünekat AT / 500 g flour |
The selected dosages were determined based on the manufacturer’s recommended application ranges and were designed to allow observation of low to moderate additive effects. This approach enabled the evaluation of both the concentration-dependent effects of Sünekat AT and the potential synergistic effects of the Armix 5000 and Sünekat AT combination on dough and bread structure.
All dough preparation, fermentation and baking conditions were kept constant across experimental groups, with only the type and amount of flour additives treated as variables. This design strengthened the assumption that observed differences in bread quality were directly attributable to the applied additives.
Conclusion
In this study, the effects of Sünekat AT and Armix 5000 flour additives developed by Bastak on dough rheological properties and post-baking bread structure were experimentally evaluated. The results clearly demonstrate that both additive type and dosage play a decisive role in dough behavior and final product quality. In particular, increasing levels of Sünekat AT enhanced gluten structure and gas retention capacity, while the combination of Armix 5000 and Sünekat AT produced positive synergistic effects on dough elasticity and bread volume.
Visual evaluation of bread samples supported the analytical findings, providing tangible evidence of the effects of additive applications on loaf volume, crumb homogeneity and pore distribution. These observations indicate that flour additives influence production quality not only through analytical parameters but also through the physical appearance of the final product.
One of the primary challenges in modern bakery production is the negative impact of raw material–related quality variability on product performance. In this context, functionally formulated flour additives such as Armix, Arkat, Slash, Sünekat, Purmix and their various derivatives enable controlled manipulation of dough rheology, ensuring quality consistency in production processes. These additives offer effective solutions not only for improving weak flours but also for industrial production lines aiming to maintain standardised quality.
The findings of this study highlight that flour additives should be regarded not merely as auxiliary components but as active quality determinants within the production process. Through appropriate additive selection and precise dosage strategies, dough structure can be effectively directed and final product quality can be rendered more predictable. Consequently, such additives represent a fundamental element of sustainable quality management in industrial bread production.
