The anti-Aspergillus flavus activity of composite coating of perillaldehyde-sodium alginate in peanut
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摘要: 花生极易在储运过程中因黄曲霉菌的快速生长繁殖受到黄曲霉毒素的污染,为了更好地防控花生受到黄曲霉毒素的污染,本文以海藻酸钠和紫苏醛为原料,甘油为增塑剂,以抑制黄曲霉菌生长活性为主要评价指标,研究紫苏醛-海藻酸钠复合涂膜最佳配方及复合涂膜花生的储藏条件。结果表明,海藻酸钠浓度6 mg/m L,活性物紫苏醛0.015 mg/m L,甘油浓度6 mg/m L时制备的复合膜抗黄曲霉生长活性能力最佳,抑菌直径达到（7.23±0.11）cm。紫苏醛添加方式对涂膜花生黄曲霉菌抑制效果影响很大,最佳添加方式为熏蒸,涂膜花生贮藏温度应在25℃以下,贮藏环境相对湿度为60%以下。Abstract: Peanut was easily polluted by aflatoxin which was due to the rapid growth and reproduction of Aspergillus flavus during storage and transportation. In order to better prevention and control peanut aflatoxin contamination, compound coating formulation of perillaldehyde-alginate sodium and storage process of composite coating peanuts was studied with sodium alginate and perillaldehyde paper as raw material, glycerol as a plasticizer, to inhibit the growth of Aspergillus flavus activity as the main evaluation. The optimum formula was that the concentration of sodium alginate was 6 mg/m L, perillaldehyde was0.015 mg/m L, glycerol concentration was 6 mg/m L, in which inhibitory diameter achieved ( 7.32 ± 0.11) cm. The way to add perillaldehyde had great influence to inhibit Aspergillus flavus in film peanut, and the best way to add perillaldehyde was fumigation, storage temperature and relative humidity of storage respectively was below 25 ℃ and below 60%.
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Keywords:
- perillaldehyde /
- sodium alginate /
- composite coating /
- Aspergillus flavus /
- peanut
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