Effect of Fermentation on Antioxidant Properties of Red Cabbages |
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| Authors: | Dase Hunaefi Divine Nkonyam Akumo Iryna Smetanska |
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| Affiliation: | 1. Berlin University of Technology, Department Method in Food Biotechnology , Berlin , Germany;2. Bogor Agricultural University, Department of Food Science and Technology , Bogor , Indonesia dashcbdk@yahoo.com;4. Berlin University of Technology, Department Method in Food Biotechnology , Berlin , Germany |
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| Abstract: | The influence of fermentation, natural and inoculated by two types of lactic acid bacteria (Lactobacillus plantarum ATCC 8014 and Lactobacillus acidophilus, NCFM), on antioxidant properties of red cabbages was determined and compared with those of their unfermented counterparts. Fermentation led to increased antioxidant activity, which was measured by using DPPH and TEAC method. Highest antioxidant activity was observed in red cabbages fermented with L. plantarum. The total content of phenolic compounds increased upon natural fermentation and was determined by the Folin–Ciocalteu method. Interestingly, in contrast to natural fermentation, for the red cabbages inoculated with L. plantarum and L. acidophilus, the total amount of phenolics increased slightly until day 7 of fermentation and gradually decreased for longer time of fermentation. Fermentation appears to decrease the level of total anthocyanins for all type of fermentation. Additionally, results of the HPLC analysis indicated the metabolism of phenolic compounds during the fermentation of red cabbages. Thus fermentation offers a tool to further increase the antioxidant potential of red cabbages. |
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| Keywords: | sauerkraut antioxidant activity secondary metabolites phenolics flavonoids flavonols |
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