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  • Title: Impact of xylanase-treated wheat milling by-products on the physical and chemical properties of cakes.
    Author: Çakır N, Bilgiçli N, Yaver E.
    Journal: J Sci Food Agric; 2021 Dec; 101(15):6331-6337. PubMed ID: 33969888.
    Abstract:
    BACKGROUND: Wheat milling by-products (germ and bran) are rich in dietary fiber, protein, vitamins, minerals and antioxidants. In this study, wheat milling by-products (bran obtained by debranning (BOD), coarse bran, fine bran and wheat germ) were used in the production of cake at different ratios (0-30%) after treatment with xylanase. Xylanase was used to improve the technological properties of the by-products and thus improve end-product quality. RESULTS: As the by-products ratio increased in cake formulation, ash, protein, fat, crude fiber, phytic acid and mineral content significantly (P < 0.05) increased. In terms of by-product type, phytic acid content of the cakes changed between 1.14 and 2.55 g kg-1 , and the lowest value was obtained in cakes prepared with BOD. The highest protein, Mn and Zn contents were found in cake samples containing wheat germ, whereas the addition of BOD revealed greater crude fiber, Ca and Fe levels in cake samples than the other by-products. Xylanase treatment resulted in increments in volume and decrements in hardness and color lightness values of cakes. CONCLUSION: This study demonstrated that the use of the wheat by-products after treatment with xylanase had an improving effect on the quality and nutritive value of cakes. The results obtained in this study provided a basis for the use of xylanase in enriched cake production. © 2021 Society of Chemical Industry.
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