Enhanced antioxidant activity of Monascuspilosus fermented products by addition of ginger to the medium |
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Authors: | Chia-Feng Kuo Ming-Hon Hou Tsu-Shing Wang Charng-Cherng Chyau Yi-Ting Chen |
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Affiliation: | 1. Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei, Taiwan;2. Institute of Bioinformatics, National Chung Hsing University, Taichung, Taiwan;3. Department of Medical Sciences, Chung Shan Medical University, Taichung, Taiwan;4. Department of Biotechnology, Hungkuang University, Taichung, Taiwan |
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Abstract: | The fermented products of Monascus sp. are known for their antihypercholesterolaemic effects, however, their antioxidant activities are different from those of many plant-derived foods. To evaluate the effect of ginger addition into the medium on the antioxidant activity of Monascuspilosus fermented products, we cultured uninoculated PDB medium (PDB), inoculated PDB medium (MP), uninoculated ginger-containing medium (PDBG), and inoculated ginger-containing medium (MPG). The broth and mycelia were collected, freeze-dried, and extracted to evaluate their free radical scavenging activities, inhibition of peroxidation, phenolic content, inhibition of DNA damage, cellular antioxidant activity, and expression of the antioxidant enzymes. The results showed that MPG had significantly higher antioxidant activity than PDB, MP, and PDBG at all fermentation time points. Moreover, the fermentation process significantly increased the antioxidant activities of MPG. After the inherent level of antioxidant capacity was increased, the modified M. pilosus fermented product demonstrated a higher anti-atherosclerotic value than the unmodified product. |
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Keywords: | Monascus pilosus Ginger Antioxidant activity |
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