Assessing safety risks associated with Burkholderia gladiolus in soaked Auricularia auricula-judae: One instant predictive model study
文献类型： 外文期刊
作者： Chen, Xiujin 1 ; Dai, Minghui 1 ; Bai, Li 3 ; Wang, Jun 4 ; Peng, Zixin 3 ; Qu, Yang 2 ; Chen, Shanshan 2 ; Yang, Xianli 2 ; Bai, Yalong 2 ; Zhou, Changyan 2 ; Suo, Yujuan 2 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Food & Bioengn, Henan Engn Res Ctr Food Microbiol, Luoyang 471023, Peoples R China
2.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Lab Qual & Safety Risk Assessment Agroprod Shangha, Minist Agr & Rural Affairs, Shanghai 201403, Peoples R China
3.China Natl Ctr Food Safety Risk Assessment, Natl Hlth Commiss, Key Lab Food Safety Risk Assessment, Beijing 100020, Peoples R China
4.Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524008, Peoples R China
关键词： Auricularia auricula-judae; Burkholderia gladioli; Predictive model; Bongkrekic acid; Foodborne pathogen
期刊名称：INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：5.3 ）
ISSN： 0168-1605
年卷期： 2025 年 436 卷
页码：
收录情况： SCI
摘要： Soaked Auricularia auricula-judae (A. auricula-judae) serves as a significant vehicle for foodbome disease caused by Burkholderia gladiol. This study aimed to develop predictive models that described the effect of temperature on the growth and bongkrekic acid (BA) toxin production of B. gladioli in soaked A. auricula-judae. The experiment involved inoculating soaked A. auricula-judae with B. gladioli and incubating it at 4, 10, 15, 20, 26, 30 and 36 degrees C. B. gladioli concentration data was used to develop a growth predictive model, while BA measurements were utilized to create a toxin predictive model. Model validation was conducted at 18 degrees C, 28 degrees C, and 33 degrees C. The results indicated that B. gladioli did not grow at 4 degrees C and 10 degrees C. The SGompertz model was identified as the most appropriate primary model, while a quadratic polynomial model was derived as a secondary model. The secondary model determined that the minimum temperature (Tmin) required for the growth in soaked A. auriculajudae is 12.9 degrees C. Furthermore, the minimum detectable concentration of B. gladioli for qualitative BA production in soaked A. auricula-judae was approximately 8 log CFU/g, and a toxin-producing model has been developed to predict the time of BA production. Finally, the validation data obtained at 18, 28, and 33 degrees C showed RMSE and RE values of 0.30, 0.21, and 0.22 log CFU/g and-2.2 %,-3.1 %, and-2.5 %, respectively. This study revealed the growth kinetics of B. gladioli and provides information for the foodborne risk of bongkrekic acid production by B. gladioli on soaked A. auricula-judae.
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