Journal
JOURNAL OF FOOD SCIENCE
Volume 82, Issue 10, Pages 2371-2378Publisher
WILEY
DOI: 10.1111/1750-3841.13858
Keywords
acrylamide; lactic acid bacteria; sourdough; quality; wheat bread
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Different lactic acid bacteria (LAB) from spontaneous wheat sourdough were isolated, identified, and characterized by their growth, acidification rate, and carbohydrate metabolism. The combinations of isolated LAB (Pediococcus pentosaceus LUHS183 and Leuconostoc mesenteroides LUHS242, P. pentosaceus LUHS183 and Lactobacillus brevis LUHS173, P. pentosaceus LUHS183 and Enterococcus pseudoavium LUHS 234, P. pentosaceus LUHS183 and Lactobacillus curvatus LUHS51, Lactobacillus plantarum LUHS135 and L. curvatus LUHS51, L. plantarum LUHS135 and P. pentosaceus LUHS183) were used for wheat sourdough production, and the effects of LAB fermentation in sourdoughs on wheat bread quality parameters and acrylamide formation were evaluated. All of the tested strains (except E. pseudoavium LUHS 234) were able to ferment l-arabinose, d-ribose, d-galactose, d-fructose, and d-maltose and showed high tolerance to acidic conditions. The highest overall acceptability (135.8 +/- 5.5 mm) was found in the bread produced withL. plantarum and P. pentosaceus sourdough. This group of bread also showed the highest shape coefficient (2.59 +/- 0.02), the highest specific volume (3.40 +/- 0.03 cm(3)/g), the highest porosity (76.6 +/- 0.3%), and the highest moisture content (33.7%). Selected sourdoughs reduced acrylamide content in bread samples by 29.5% (sourdough prepared with P. pentosaceus and L. mesenteroides) to 67.2% (sourdough prepared with P. pentosaceus and L. curvatus). These cultures potentially can be used to reduce acrylamide in breads.
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