Comparison of Anti-mould Activities of Wheat Cultivars Stored at Critical Moisture Content
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Abstract:
Modeling storage of three wheat cultivars with different vitreosity were studied at critical moisture content. The results showed that the increased ratios of mould count on each wheat seeds varied significantly. After stored at 30 ℃ and 13.5% moisture content for 28 days, mould counts in Jimai 38 and Aikang 58 increased significantly faster (p＜0.01) than that in Wenmai 6. Further study demonstrated that Wenmai 6 could resist the growth of Aspergillus glaucus. Under different storage temperatures (30 ℃, 25 ℃, 20 ℃ and 15 ℃) and their corresponding critical moisture contents, the growth of Aspergillus glaucus in Wenmai 6 was postponed for over 7 days compared to its growth in Jimai 38 and Aikang 58. In addition, moisture absorption tests were performed for the three dry wheat cultivars under 85% relative humidity condition and the growth of Aspergillus glaucus in Wenmai 6 was postponed for 14 days. Therefore, the softer wheat Wenmai 6 had a stronger anti-mould activity than the others under the same storage condition.
