Occurrence of <i>Aliarcobacter</i> spp. in fresh and pre-cut vegetables of common use in San José, Costa Rica

IF 1.8 Q3 FOOD SCIENCE & TECHNOLOGY Italian Journal of Food Safety Pub Date : 2023-10-02 DOI:10.4081/ijfs.2023.10344
María Laura Arias Echandi, Alejandra Huete Soto, Jose Manuel Castillo Blanco, Fernanda Fernández, Heriberto Fernandez Jaramillo
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Abstract

Aliarcobacter is a Gram-negative rod that can cause disease in both animals and humans. Several studies have evidenced its presence in a wide variety of foods. Given that the number of foodborne illness outbreaks linked to the consumption of vegetables has increased worldwide and that there is a lack of information about the occurrence of Aliarcobacter spp. in these, the aim of this study was to evaluate its presence and the occurrence of virulence factors in both fresh and ready-to-eat vegetable samples. 180 vegetable samples from Costa Rica were analyzed for the presence of Aliarcobacter spp., including 90 pre-cut vegetable packages and 90 fresh vegetables. Two (2.2%) of the isolates from pre-cut vegetables and 19 (21.1%) of the isolates obtained from fresh vegetables were confirmed as Aliarcobacter spp. One of the isolates from the pre-cut vegetable samples was identified as A. butzleri. For the fresh vegetables, 11 isolates were identified as A. skirrowii, one as A. butzleri, and the 7 remaining isolates could not be identified at a species level. There is an 87.5% positivity for hecA and 93.8% for pldA, virulence genes in strains isolated from fresh produce, contrasting with an absolute absence from pre-cut vegetable-isolated strains. These results evidence the presence of Aliarcobacter on fresh and pre-cut vegetables from Costa Rica and the potential hazard it might represent for public health.
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出现<i> aliarcobacteria </i>哥斯达黎加圣何塞市常用的新鲜和预先切好的蔬菜中的一种
Aliarcobacter是一种革兰氏阴性棒,可在动物和人类中引起疾病。几项研究已经证明它存在于各种各样的食物中。鉴于与食用蔬菜有关的食源性疾病暴发的数量在世界范围内有所增加,并且缺乏有关Aliarcobacter spp.发生的信息,本研究的目的是评估其在新鲜和即食蔬菜样品中的存在和毒力因子的发生。对来自哥斯达黎加的180份蔬菜样品进行了Aliarcobacter spp的分析,其中包括90份预切蔬菜包装和90份新鲜蔬菜。从预切蔬菜中分离出2株(2.2%)、新鲜蔬菜中分离出19株(21.1%)为Aliarcobacter,从预切蔬菜中分离出1株为butzleri。在新鲜蔬菜中,鉴定出11株为skirrowii菌株,1株为buzleri菌株,其余7株无法在种水平上鉴定。从新鲜农产品中分离的菌株的毒力基因hecA阳性率为87.5%,pldA阳性率为93.8%,而从蔬菜中分离的菌株完全没有毒力基因。这些结果证明了哥斯达黎加新鲜和预切蔬菜中存在Aliarcobacter,以及它可能对公众健康构成的潜在危害。
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来源期刊
Italian Journal of Food Safety
Italian Journal of Food Safety FOOD SCIENCE & TECHNOLOGY-
CiteScore
2.50
自引率
0.00%
发文量
37
审稿时长
10 weeks
期刊介绍: The Journal of Food Safety (IJFS) is the official journal of the Italian Association of Veterinary Food Hygienists (AIVI). The Journal addresses veterinary food hygienists, specialists in the food industry and experts offering technical support and advice on food of animal origin. The Journal of Food Safety publishes original research papers concerning food safety and hygiene, animal health, zoonoses and food safety, food safety economics. Reviews, editorials, technical reports, brief notes, conference proceedings, letters to the Editor, book reviews are also welcome. Every article published in the Journal will be peer-reviewed by experts in the field and selected by members of the editorial board. The publication of manuscripts is subject to the approval of the Editor who has knowledge of the field discussed in the manuscript in accordance with the principles of Peer Review; referees will be selected from the Editorial Board or among qualified scientists of the international scientific community. Articles must be written in English and must adhere to the guidelines and details contained in the Instructions to Authors.
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