中文摘要：本研究测试了一株先前评估不产毒的青霉对意大利蒜味腊肠中同种产毒菌株的抗性，以便评估其作为一种OTA的生物控制剂的效果。研究表明利用种内竞争的生物防治方法对减少产毒菌及OTA污染均很有效，并因此认为如果与真菌商业菌联用，将是避免肉制品中OTA污染的一个很有意思的策略。
外文摘要：A Penicillium nordicum strain previously assessed for its atoxigenicity was tested against a toxigenic strain of the same species on salami, in order to assess its effectiveness as a biocontrol agent for OTA containment. Sixty salami were inoculated with different combinations of P. nordicum OTA−/OTA+ suspensions and ripened under controlled thermohygrometric conditions. After 7, 18, 29, and 40 days, both fungal counts and chemical analyses were carried out on casings. OTA was never found in salami used as a control, while it was occasionally detected in traces (0.08–0.76 μg/kg) in salami inoculated with the atoxigenic P. nordicum strain. It was otherwise detected at levels varying from 2.84 to 15.85 μg/kg in coinoculated salami and from 48.66 to 177.79 μg/kg in salami inoculated with the toxigenic P. nordicum strain. OTA levels detected when coinoculation occurred were 91.1%, 85.8%, and 94.2% lower than those found in samples inoculated with the toxigenic strain, respectively, after 18, 29, and 40 ripening days. Biocontrol approach using intraspecific competition proved very effective in reducing both settlement of toxigenic strains and OTA contamination and could be therefore considered an interesting strategy to avoid OTA contamination in moulded meats, if used in association with fungal commercial starters.
作者：Berni, E；Montagna, I；Restivo, FM；Degola, F
作者单位：SSICA
期刊名称：JOURNAL OF FOOD QUALITY
期刊影响因子：0.755
出版年份：2017
出版刊次：-
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