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The microbiota of marketed processed edible insects as revealed by high-throughput sequencing

机译：高通量测序揭示了市售加工食用昆虫的菌群

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摘要

Entomophagy has been linked to nutritional, economic, social and ecological benefits. However, scientific studies on the potential safety risks in eating edible insects need to be carried out for legislators, markets and consumers. In this context, the microbiota of edible insects deserves to be deeply investigated. The aim of this study was to elucidate the microbial species occurring in some processed marketed edible insects, namely powdered small crickets, whole dried small crickets (Acheta domesticus), whole dried locusts (Locusta migratoria), and whole dried mealworm larvae (Tenebrio molitor), through culture-dependent (classical microbiological analyses) and -independent methods (pyrosequencing). A great bacterial diversity and variation among insects was seen. Relatively low counts of total mesophilic aer-obes, Enterobacteriaceae, lactic acid bacteria, Clostridium perfringens spores, yeasts and moulds in all of the studied insect batches were found. Furthermore, the presence of several gut-associated bacteria, some of which may act as opportunistic pathogens in humans, were found through pyrosequencing. Food spoilage bacteria were also identified, as well as Spiroplasma spp. in mealworm larvae, which has been found to be related to neurodegenerative diseases in animals and humans. Although viable pathogens such as Salmonella spp. and Listeria monocytogenes were not detected, the presence of Listeria spp., Staphylococcus spp., Clostridium spp. and Bacillus spp. (with low abundance) was also found through pyrosequencing. The results of this study contribute to the elucidation of the microbiota associated with edible insects and encourage further studies aimed to evaluate the influence of rearing and processing conditions on that microbiota.
机译：吞噬作用与营养，经济，社会和生态效益有关。但是，需要立法者，市场和消费者对食用食用昆虫的潜在安全风险进行科学研究。在这种情况下，食用昆虫的微生物群值得深入研究。这项研究的目的是阐明在一些加工的可食用昆虫中出现的微生物种类，即粉状小small，全干小small（Acheta domesticus），全干蝗虫（Locusta migratoria）和全干粉虫幼虫（Tenebrio molitor）通过与文化相关的（经典的微生物分析）和与文化无关的方法（焦磷酸测序）。在昆虫之间看到了很大的细菌多样性和变异性。在所有研究的昆虫批次中，发现总的中温需氧菌，肠杆菌科，乳酸菌，产气荚膜梭菌孢子，酵母和霉菌的数量相对较低。此外，通过焦磷酸测序发现了几种肠道相关细菌的存在，其中一些可能是人类的机会病原体。还发现了食物变质细菌以及螺旋体属。在粉虫的幼虫中，它被发现与动物和人类的神经退行性疾病有关。虽然有病原体，如沙门氏菌。未检测到李斯特菌和单核细胞增生李斯特菌，李斯特菌，葡萄球菌和梭状芽胞杆菌。和芽孢杆菌属。 （低丰度）也通过焦磷酸测序发现。这项研究的结果有助于阐明与可食用昆虫有关的微生物群，并鼓励开展进一步的研究，以评估饲养和加工条件对该微生物群的影响。

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  • 来源
    《Food microbiology》 |2017年第4期|15-22|共8页
  • 作者

    Cristiana Garofalo; Andrea Osimani; Vesna Milanovic; Manuela Taccari; Federica Cardinali; Lucia Aquilanti; Paola Riolo; Sara Ruschioni; Nunzio Isidore; Francesca Clementi;

  • 作者单位

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

    Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Universita Politecnica delle Marche, via Brecce Blanche, 60131 Ancona, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microbial community; Next-generation sequencing; Entomophagy; Acheta domesticus; Locusta migratoria; Tenebrio molitor;

    机译：微生物群落;下一代测序吞噬;Acheta domesticus;蝗虫黄粉虫;

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