| 杨相政,李喜宏,马宏原,申灵敏.高CO2气调储藏对鸡饲料细菌和霉菌的抑制效果研究[J].中国粮油学报,2014,29(1):83-86 |
| 高CO2气调储藏对鸡饲料细菌和霉菌的抑制效果研究 |
| Effects of Controlled Atmospheres with High CO2 Concentrations on bacteria and mould of poultry feed |
| 投稿时间：2013-03-12 修订日期：2013-06-15 |
| DOI： |
| 中文关键词: 鸡饲料 气调储藏 细菌 霉菌 黄曲霉毒素 |
| 英文关键词:poultry feed atmosphere control bacterial mould aflatoxin |
| 基金项目:国家高技术研究发展计划 |
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| 中文摘要: |
| 以鸡饲料为试材,定量控制储藏环境中的O2和CO2浓度,研究0℃、10℃和30℃,不同浓度CO2储藏4个月对饲料中细菌总数、霉菌总数和黄曲霉总数的影响以及室温下黄曲霉毒素B1含量的变化。结果表明：在0℃和10℃下, 30％CO2和50％CO2的条件下储藏90天细菌总数低于国家限量标准,储藏120天后霉菌总数也均低于国家限量标准,黄曲霉增长缓慢；30℃下,30％CO2储藏60天后,细菌和霉菌总数均超过限量标准,而50％CO2条件下细菌和霉菌总数均低于限量标准；23℃下,30％CO2和50％CO2储藏90天,黄曲霉毒素B1含量分别为13.8 ug/kg 和19.2ug/kg,低于国家限量标准20 ug/kg。高浓度的CO2对于常温和低温储藏下的鸡饲料内霉菌的生长抑制效果显著,而对于高温储藏下的鸡饲料内的霉菌生长抑制效果不显著。 |
| 英文摘要: |
| This paper investigated the effects of high CO2 atmosphere control condition on the total number of bacteria, mould and aspergillus flavus in poultry feed. The sample from Tianjin was stored at 0℃、10℃and 30℃ separately for 4 months in gas -controlled chambers, which could quantitatively regulate the content of oxygen and carbon dioxide and the change of aflatoxin B1 content under room temperature. The results showed that under 0℃and 10℃, stored under the condition of 30% CO2 and 50%CO2for 90 days, the total bacteria count were all lower than the national sanitary standard and total mould count also lower than the national sanitary standard after stored for 120 days, the aspergillus flavus remain constant; Under the storage condition of 30℃ 30% CO2 for 60 days, the total bacteria count and total mould count were exceed the national sanitary standard, while stored under the condition of 30℃ 50% CO2 for 60 days, the total bacteria count and total mould count lower than the national sanitary standard; Under the storage condition of 23℃ 30% CO2 and 23℃ 50% CO2 for 90 days, the aflatoxin B1content were 13.8 ug/kg and 19.2 ug/kg respectively lower than the national sanitary standard which is 20ug/kg. The high concentrations of CO2 could significantly inhibit the growth of mould in poultry feed which stored under low and room temperature, while it is non-significant for poultry feed stored under high temperature. |
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