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| Preparation of antioxidant peptides from defatted sunflower seed meal by solid-state fermentation with Neurospora sitophilo |
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| DOI： |
| KeyWord:Neurospora sitophilo defatted sunflower seed meal solid-state fermentation antioxidant activity |
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| Abstract: |
| Neurospora sitophilo was applied to ferment the defatted sunflower seed meal to produce antioxidant peptides so as to improve the utilization value of sunflower seed meal. The culture media composition and fermentation conditions were studied. The results showed that the optimal culture media composition was obtained as follows：defatted sunflower seed meal 2 g，bran 2.5 g，solid-liquid ratio 1∶2.5，pH 7.5 and MgSO4 dosage 0.02 g；the optimal fermentation conditions were obtained as follows：inoculation dosage 1.0×106 cells per 1 g material，fermentation temperature 30℃ and fermentation time 5 d. Under these conditions，the dissolution rate of protein and antioxidant activity of the obtained product were 27.2% and 186.37 U/mL，respectively. |
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