期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 150, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2021.112058
关键词
Spinach powder; Dough and bread preparation; Rheological properties; Antioxidant activity
资金
- Anhui Natural Sciences Foundation [11008761]
- Anhui Sci-ences and Technology Plant Project [1704a07020098, Ilj20170144]
The study showed that incorporating spinach powder into refined wheat flour can significantly improve the physical properties of dough and antioxidant properties of bread, while reducing peak and final viscosities, increasing protein weakening, and starch crystallinity in the corresponding samples.
An adequate intake of dietary fiber in baked foods with appropriate physiological functions is beneficial to human health. The spinach powder (1, 2, and 3 g/100 g) was supplemented with refined wheat flour to investigate its effect on physicochemical and antioxidant properties of bread. The mixing, pasting, and rheological properties of dough, as well as physical, antioxidant, and sensory properties of bread were analyzed. Results showed that water absorption%, stability and development time, protein weakening, and starch crystallinity of spinach samples increased to 62.40%, 5.92/min, 2.05/min, 0.76 Nm, and 0.21 Nm. The peak viscosity, final viscosity, setback, and breakdown values were significantly decreased to 2205.71, 2485.05, 1122.74, and 843.36 cP, respectively. Samples exhibited the highest elastic (218017 Pa) and viscous (94257.76 Pa) moduli and the lowest specific volume (3.12 cm3/g), color attributes, and sensorial properties. Furthermore, breads stored for different periods showed the minimum hardness (4151.67 N), chewiness (826.33 N), and resilience (0.08) compared to control. In addition, the 2,2-diphenyl-1-picrylhydrazyl, ferric reducing antioxidant power, and 2,2 '-azino-bis 3-ethylbenzothiazoline-6-sulfonic acid properties were also significantly improved in corresponding samples. Findings suggest that incorporating spinach into wheat flour could be a viable approach to produce healthy bread enriched with fiber, protein, and antioxidants.
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