Herbal Extracts Incorporated into Shortbread Cookies: Impact on Color and Fat Quality of the Cookies.

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ID: 70875
2019
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Abstract
This study aimed at determining the effect of aqueous ethanolic extracts from lemon balm, hyssop and nettle, and butylated hydroxyanisole (BHA) on properties of shortbread cookies. This was achieved by instrumental measurements of color and sensory properties of the cookies directly after baking and by determination of peroxide (PV) and -anisidine (-AnV) values, and specific extinction coefficients (K and K values) for fat extracted from the cookies stored for 3 months at room temperature. Increase of the herbal extracts' concentration from 0.02% to 0.2% in the cookies caused a reduction of L* (the brightness) and a* values (the red coordinate), while b* values (the yellow coordinate) increased when the cookies were enriched with lemon balm and nettle extracts. Among the cookies studied, those prepared with BHA and 0.1 and 0.2% addition of lemon balm extracts were characterized by the highest scores for aroma, taste, and overall acceptability. Incorporation of BHA and 0.02% hyssop extract into the cookies caused a decrease of PV values (the peroxide value) for fat extracted from the cookies after 3 months of their storage compared to a (control) sample without additives and produced the lowest K values. Changes in the -AnV values for the fat samples studied occurred gradually and slowly during the storage and the obtained values were lower compared to the control sample. All of the studied fat samples also showed a higher ability to scavenge DPPH radicals than the control sample. Considering both PV and -AnV values as indicators of fat oxidation, BHA protected fat extracted from cookies against oxidation better than the herbal extracts used.
Reference Key
kozlowska2019herbalbiomolecules Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kozlowska, Mariola;Zbikowska, Anna;Marciniak-Lukasiak, Katarzyna;Kowalska, Malgorzata;
Journal Biomolecules
Year 2019
DOI
E858
URL
Keywords
dpph assay peroxide value p-anisidine value pastry goods plant material sensory properties

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