Journal of Food Safety最新文献

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Cold Plasma and Pulsed Light Inactivates Escherichia coli O157: H7 in Romaine Lettuce and Preserves Produce Quality 冷等离子体和脉冲光能灭活罗马生菜中的大肠杆菌 O157: H7 并保护农产品质量
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-11-13 DOI: 10.1111/jfs.70000
Sudarsan Mukhopadhyay, Brendan A. Niemira, Dike O. Ukuku, Ocen M. Olanya, Glenn Boyd, Zhonglin T. Jin, Xuetong Fan
{"title":"Cold Plasma and Pulsed Light Inactivates Escherichia coli O157: H7 in Romaine Lettuce and Preserves Produce Quality","authors":"Sudarsan Mukhopadhyay,&nbsp;Brendan A. Niemira,&nbsp;Dike O. Ukuku,&nbsp;Ocen M. Olanya,&nbsp;Glenn Boyd,&nbsp;Zhonglin T. Jin,&nbsp;Xuetong Fan","doi":"10.1111/jfs.70000","DOIUrl":"https://doi.org/10.1111/jfs.70000","url":null,"abstract":"<div>\u0000 \u0000 <p>Fresh produce safety is important for consumer health. Intervention technologies that can lessen the pathogen threat and produce contamination is needed. In this research, cold plasma (CP), pulsed light (PL) and their combinations were assessed for inactivating <i>Escherichia coli</i> O157:H7 on Romaine lettuce. The effects of treatment on native microflora and sensory attributes of lettuce was also determined. An inoculum of multiple <i>E. coli</i> O157:H7 strains was employed for this study. Lettuce leaves were spot inoculated and then treated with PL (1–60 s), CP (15–60 s) or their optimized treatment combinations. A 30 s treatment with PL (fluence dose of 31.5 J/cm<sup>2</sup>), was optimum which provided 2.7 log CFU/g reduction of the pathogen, while 45 s treatment of CP was optimum, that delivered 2.1 log CFU/g log reduction. Combinations of PL and CP treatments were investigated for enhanced inactivation. For PL-CP combination, inoculated lettuce was treated with PL for 30 s followed by 45 s of CP exposure. While for CP-PL combination, treatments sequences were 45 s of CP treatment followed by 30 s PL treatment. Both combination treatments, PL-CP and CP-PL, resulted in synergistic inactivation of <i>E. coli</i> cells with &gt; 5 log reductions of the pathogen. These combination treatments significantly (<i>p</i> &lt; 0.05) reduced native microbiota and slowed their growth during storage. Additionally, treatment effects on lettuce quality was not adversely impacted. PL and CP are both non-aqueous, sustainable technologies. This study demonstrated that integration of PL and CP technology can enhance microbial safety and preserve quality of Romaine lettuce.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ginger Essential Oil Exerts Antibacterial Activity Against Shewanella putrefaciens by Disrupting Cell Structure and Resisting Biofilm 生姜精油通过破坏细胞结构和抵御生物膜对谢瓦纳菌发挥抗菌活性
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-11-11 DOI: 10.1111/jfs.13176
Weiqing Lan, Shuting Liu, Xuening Chen, Hongqiang Zhao, Xiaohong Sun
{"title":"Ginger Essential Oil Exerts Antibacterial Activity Against Shewanella putrefaciens by Disrupting Cell Structure and Resisting Biofilm","authors":"Weiqing Lan,&nbsp;Shuting Liu,&nbsp;Xuening Chen,&nbsp;Hongqiang Zhao,&nbsp;Xiaohong Sun","doi":"10.1111/jfs.13176","DOIUrl":"https://doi.org/10.1111/jfs.13176","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to elucidate the antibacterial mechanism and antibiofilm activity of ginger essential oil (GEO) against <i>Shewanella putrefaciens</i>. On the basis of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC), alkaline phosphatase (AKPase), succinate dehydrogenase (SDH), and glucose-6-phosphate dehydrogenase (G6PDH) activities were analyzed to evaluate the damage degree of <i>S. putrefaciens</i> on cell wall and membrane, and the microstructure was observed by scanning electron microscope (SEM) to evaluate the action effect against <i>S. putrefaciens</i>. The results showed that the MIC and MBC of GEO against <i>S. putrefaciens</i> were 27.8125 mg/mL and 55.625 mg/mL, respectively. The surface structures and cell membrane of <i>S. putrefaciens</i> were rigorously damaged by 1 MIC and 2 MIC GEO, leading to the leakage of cellular nucleic acids, protein, and <i>β</i>-galactosidases from the bacterial cells. GEO could not only decrease the biomass of biofilm but also remove mature biofilm. In addition, GEO could reduce the production of exopolysaccharides and extracellular proteins, and could lessen the metabolic activity of biofilm cells. These results demonstrated that GEO exhibited efficient antibacterial characteristics against <i>S. putrefaciens</i>, which could act as a natural antibacterial and antibiofilm agent on the preservation of aquatic products.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142641951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the Storage Temperature Effect on Phthalate Migration Potential in Vacuum-Packed Fish Fillets 研究贮藏温度对真空包装鱼片中邻苯二甲酸酯迁移潜力的影响
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-11-07 DOI: 10.1111/jfs.13173
Gonca Alak, Rabia Nur Yavas
{"title":"Investigation of the Storage Temperature Effect on Phthalate Migration Potential in Vacuum-Packed Fish Fillets","authors":"Gonca Alak,&nbsp;Rabia Nur Yavas","doi":"10.1111/jfs.13173","DOIUrl":"https://doi.org/10.1111/jfs.13173","url":null,"abstract":"<div>\u0000 \u0000 <p>Information on the microplastic (MPs) migration, particularly phthalate acid esters (PAEs) in packaged seafood, is limited to a few studies. The aim of this study is to follow the possible migration potential and speed of phthalates in rainbow trout (<i>Oncorhynchus mykiss</i>) fillets stored in vacuum packaging depending on the storage temperature, as well as to determine the polyethylene polymer detection. For this purpose, the fillets were randomly distributed as three pieces in each bag, vacuum-packed, and stored at commonly used temperatures (+4°C and −20°C) for 3 months. On the first day of storage in fillet and packaging materials, in certain periods of storage, the phthalate content in the fillet of each temperature group was determined. It has been determined that the chemical composition of the bag used in the vacuum packaging process is affected by the temperature depending on the storage period, and different polymer types are formed in the packaged material. Ten types of PAEs including diisobutyl phthalate (DIBP), dibutylphthalate (DBP), di-n-pentyl phthalate (DPENP), di-n-hexyl phthalate (DHEXP), butylbenzylphthalate (BBP), di-(2-ethylhexyl)-phthalate (DEHP), dicyclohexyl phthalate (DCHP), di-n-octylphthalate (DNOP), di-iso-nonylphthalate (DINP), and di-isodecylphthalate (DIDP) were recorded in the packaging material and stored fillets. It was determined that the dominant PAE in the fillets were DPENP, and DEHP in the package at all temperature applications and storage periods. The findings help monitor the presence and migration of PAEs in foods and provide a motivating model for adopting the right technologies.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142641371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epiphytic, Attached, and Internal Escherichia coli O157:H7 Subpopulations Associating With Romaine Lettuce Are Strain-Dependent and Affected by Relative Humidity and Pre- and Postharvest Plant State 附生、附着和内部大肠埃希菌 O157:H7 亚群与罗马生菜的关系取决于菌株,并受相对湿度和收获前后植物状态的影响
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-28 DOI: 10.1111/jfs.13169
Claire L. Hudson, Shirley A. Micallef
{"title":"Epiphytic, Attached, and Internal Escherichia coli O157:H7 Subpopulations Associating With Romaine Lettuce Are Strain-Dependent and Affected by Relative Humidity and Pre- and Postharvest Plant State","authors":"Claire L. Hudson,&nbsp;Shirley A. Micallef","doi":"10.1111/jfs.13169","DOIUrl":"https://doi.org/10.1111/jfs.13169","url":null,"abstract":"<p>Romaine lettuce is susceptible to <i>Escherichia coli</i> O157:H7 contamination. We evaluated strain and pre- and postharvest lettuce product differences in <i>E. coli</i> O157:H7 subpopulation distribution on romaine lettuce at two relative humidity (RH) levels. Plants of romaine lettuce cultivar 'Carlsbad' harvested and processed 'Carlsbad' leaves, and store-bought ready-to-eat romaine lettuce were inoculated with <i>E. coli</i> O157:H7 reference strain EDL933 and romaine lettuce outbreak strain 2705C. Using four processing methods, we determined pathogen cell fractions representing All (entire population), Epiphytic (loosely attached cells), Strongly Attached + Internal (excluding loosely attached cells), and Internal (excluding epiphytic cells) subpopulations. Preharvest, 80% RH favored subpopulations in each cell fraction, compared to 40% RH (<i>p</i> &lt; 0.01 for both strains) and yielded 92%–100% internalization incidence of <i>E. coli</i> O157:H7, compared to 50%–57% at 40% RH. Levels of internal EDL933 cells were also 1.1 log higher than 2705C cells from plants kept at 80% RH (<i>p &lt;</i> 0.001). While EDL933 had lower measures of Strongly Attached + Internal cells compared to All and Epiphytic fractions (<i>p</i> &lt; 0.01), 2705C yielded no difference. Taken together, data suggest that the lettuce outbreak strain had a higher propensity for strong attachment to leaves and EDL933 internalized more successfully. Moreover, the Strongly Attached + Internal fractions of both strains were lower on preharvest 'Carlsbad' compared to 'Carlsbad' processed leaves (<i>p</i> &lt; 0.01), suggesting that <i>E</i>. <i>coli</i> O157:H7 attached less strongly to preharvest plants than postharvest cut and stored leaves of the same variety. Our study uncovers important factors influencing cultivar- and strain-specific differences in association and internalization of enteric pathogens on leafy greens.</p>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfs.13169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Combined Cold Plasma and Organic Acid-Based Sanitizer Treatments Against Salmonella enterica on Tomato Surfaces 冷等离子体和有机酸联合消毒处理对番茄表面肠炎沙门氏菌的影响
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-27 DOI: 10.1111/jfs.13172
Dike O. Ukuku, Sudarsan Mukhopadhyay, Brendan A. Niemira, Ocen M. Olanya
{"title":"Effects of Combined Cold Plasma and Organic Acid-Based Sanitizer Treatments Against Salmonella enterica on Tomato Surfaces","authors":"Dike O. Ukuku,&nbsp;Sudarsan Mukhopadhyay,&nbsp;Brendan A. Niemira,&nbsp;Ocen M. Olanya","doi":"10.1111/jfs.13172","DOIUrl":"https://doi.org/10.1111/jfs.13172","url":null,"abstract":"<div>\u0000 \u0000 <p>Incidence of foodborne illness due to bacterial contamination of fresh produce continue to exist despite continuous research on processing interventions to mitigate the problem. In this study, we combined atmospheric cold plasma treatments with an antimicrobial solution containing specific organic acids generally recognized as safe (GRAS) by the FDA and tested its antimicrobial efficacy against <i>Salmonella enterica</i> inoculated on tomato surfaces. Tomato surfaces were inoculated with at 5.6 log CFU/g of <i>Salmonella</i> by spotting 0.1 mL of 7 log CFU/ml <i>Salmonella</i> onto the tomato stem scars, and by dipping whole tomatoes into a solution of 7 log CFU/ml <i>Salmonella</i> for 3 min to achieve 4.1 log CFU/g. Antimicrobial efficacy of the organic acid-based sanitizer + cold plasma treatments for 30, 60, 120, 180, and 360 s, were investigated, and significant bacterial inactivation was achieved above 120 s treatments. At 120 s, surviving populations of aerobic mesophilic bacteria recovered on the tomatoes surfaces averaged &lt; 2 logs/g while yeast and mold survival averaged &lt; 1 CFU/g. Treatment combination with this organic acid-based sanitizer + cold plasma for 120 s resulted in a 4.9 log reduction of <i>Salmonella</i> on the stem scar area and a 3.9 log reduction on the smooth peel surface. Similarly, populations of aerobic mesophilic bacteria recovered on treated tomato surfaces averaged &lt; 0.3 log CFU/g. The results of this study indicate that combining an organic acid-based sanitizer with cold plasma treatments for ≥ 120 s can inactivates significant populations of <i>Salmonella</i> to enhance the microbial safety of tomato surfaces designated for fresh-cut salad.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142525544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Near-Infrared Spectroscopy-Based Chilled Fresh Lamb Quality Detection Using Machine Learning Algorithms 利用机器学习算法进行基于近红外光谱的冰鲜羊肉质量检测
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-20 DOI: 10.1111/jfs.13167
Xinxing Li, Changhui Wei, Buwen Liang
{"title":"Near-Infrared Spectroscopy-Based Chilled Fresh Lamb Quality Detection Using Machine Learning Algorithms","authors":"Xinxing Li,&nbsp;Changhui Wei,&nbsp;Buwen Liang","doi":"10.1111/jfs.13167","DOIUrl":"https://doi.org/10.1111/jfs.13167","url":null,"abstract":"<div>\u0000 \u0000 <p>Traditionally methods for assessing mutton quality rely on physical and chemical examination analyses that necessitate precise experimental environment conditions and specialized knowledge, often resulting in the compromise of the sample's structural integrity. To address these challenges, this study explores the application of near-infrared spectroscopy (NIR) as a non-destructive alternative for mutton quality evaluation, leveraging its operational simplicity, rapid analysis capabilities, and minimal requirement for technical expertise. Among various spectral data preprocessing techniques evaluated, multiple scattering correction (MSC) was found to significantly enhance model detection performance. Furthermore, principal component analysis (PCA) combined with the Mahalanobis Distance method was utilized for outlier identification. Finally, a mutton freshness detection model is constructed based on stacking ensemble learning, yielding an impressive accuracy rate of 0.976, outperforming other advanced approaches. In conclusion, our findings establish a robust theoretical framework for the rapid and non-destructive assessment of meat freshness, contributing to advancements in meat quality detection.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulsed Light Decontamination of Red Chilies (Capsicum annuum var. longum) 脉冲光净化红辣椒(Capsicum annuum var.)
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-09 DOI: 10.1111/jfs.13168
Kosana Pravallika, Snehasis Chakraborty
{"title":"Pulsed Light Decontamination of Red Chilies (Capsicum annuum var. longum)","authors":"Kosana Pravallika,&nbsp;Snehasis Chakraborty","doi":"10.1111/jfs.13168","DOIUrl":"https://doi.org/10.1111/jfs.13168","url":null,"abstract":"<div>\u0000 \u0000 <p>The impact of pulsed light treatment (PLT) on natural microbiota and inoculated microbes such as <i>Salmonella</i> Typhimurium, <i>Bacillus cereus</i>, and <i>Aspergillus flavus</i> on red chilies was investigated. Sequential drying did not completely inactivate the aerobic mesophiles and yeast and mold count. Hence, PLT (0.53–2.59 J cm<sup>−2</sup>) was employed as a decontamination technology on red chilies. PLT resulted in 8 log reduction of inoculated microorganisms on chilies at 2.59 J cm<sup>−2</sup>. The microbial inactivation kinetics followed Weibull distribution (<i>R</i><sup>2</sup> &gt; 0.97) with <i>β</i> value of 1.1, 1.2, and 1.5 for <i>S.</i> Typhimurium, <i>B. cereus</i>, and <i>A. flavus</i>, respectively. Changes in structure and composition of cell components were identified by SEM and FTIR analysis. After PLT, phenolics, antioxidants, flavonoids, and capsaicinoids were better retained but a significant change in ascorbic acid and carotenoid's content was observed. Hence, PL can be a potential technology for decontamination of fresh and dried chilies along with maximum retention of bioactives.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Antibacterial and Anti-Biofilm Functions of Black Bean Skin Anthocyanins Against V. parahaemolyticus 增强黑豆皮花青素对副溶血性弧菌的抗菌和抗生物膜功能
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-09 DOI: 10.1111/jfs.13170
Dan Liu, Zhengwei Zhou, Yaokun Pang, Jianxia Sun
{"title":"Enhanced Antibacterial and Anti-Biofilm Functions of Black Bean Skin Anthocyanins Against V. parahaemolyticus","authors":"Dan Liu,&nbsp;Zhengwei Zhou,&nbsp;Yaokun Pang,&nbsp;Jianxia Sun","doi":"10.1111/jfs.13170","DOIUrl":"https://doi.org/10.1111/jfs.13170","url":null,"abstract":"<div>\u0000 \u0000 <p>Black bean skin anthocyanins (BBSAs), as by-products of black beans, have not been fully exploited. BBSAs are rich in anthocyanins and have a wide range of health benefits. In this study, the antibacterial and antibiofilm action mode of BBSAs against <i>Vibrio parahaemolyticus</i> (<i>V. parahaemolyticus</i>) was evaluated. The antibacterial and antibiofilm efficiency was evaluated under different conditions, shedding light on their mode of action against <i>V. parahaemolyticus</i>. The results showed that the inactivation efficacy of BBSAs on <i>V. parahaemolyticus</i> was positively correlated with its concentration and incubating time. The MIC value for BBSAs was determined to be 10 μg/mL. The formation of <i>V. parahaemolyticus</i> biofilm was hindered by the presence of the BBSAs, especially at higher concentrations of BBSAs and during the early intervention stage. After exposure to 1 MIC of BBSA, the inhibition rate of biofilm reached 91.94%. The release of cellular components and alterations in membrane morphology indicated that BBSAs can damage the integrity of <i>V. parahaemolyticus</i> cell membrane. Furthermore, BBSAs may interact with membrane proteins, causing a notable conformational change in membrane proteins. HPLC and UPLC-MS analysis confirmed that the major antibacterial compound in BBSAs was Cyanidin-3-O-glucoside (C3G), which can form a stable complex with LolB protein in the outer membrane via hydrogen bonding. This study can provide strong technical support for the accurate control of <i>V. parahaemolyticus</i> and pave the way for the application of natural antibacterial agents in the realm of food-borne bacterial control.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment and Validation of Predictive Growth Models for Locally Isolated Salmonella enterica and Listeria monocytogenes in Alfalfa Sprouts at Various Temperatures 不同温度下苜蓿芽中局部分离的肠炎沙门氏菌和单核细胞增多性李斯特菌生长预测模型的评估和验证
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-08 DOI: 10.1111/jfs.13171
Nodali Ndraha, Chia Hsuan Lin, Goh Ai Ping, Gia Dieu Tran, Li-Ming Su, Chien Li Huang, Cheng-Quan Chen, Shwu-Jene Tsai, Hsin-I Hsiao
{"title":"Assessment and Validation of Predictive Growth Models for Locally Isolated Salmonella enterica and Listeria monocytogenes in Alfalfa Sprouts at Various Temperatures","authors":"Nodali Ndraha,&nbsp;Chia Hsuan Lin,&nbsp;Goh Ai Ping,&nbsp;Gia Dieu Tran,&nbsp;Li-Ming Su,&nbsp;Chien Li Huang,&nbsp;Cheng-Quan Chen,&nbsp;Shwu-Jene Tsai,&nbsp;Hsin-I Hsiao","doi":"10.1111/jfs.13171","DOIUrl":"https://doi.org/10.1111/jfs.13171","url":null,"abstract":"<div>\u0000 \u0000 <p>Sprouts are popular due to their high nutritional content, including vitamins, minerals, antioxidants, and enzymes. However, the conditions favorable for sprouting, such as warm and humid environments, are also ideal for the growth of bacteria, including food-borne pathogens. Here, we analyzed the growth and developed predictive models of locally isolated and commercial strains of <i>Salmonella enterica</i> and <i>Listeria monocytogenes</i> in alfalfa sprouts under various constant temperatures, ranging from 5°C to 25°C. Our findings indicated that these pathogens could grow at 5°C in sprouts, albeit with a low growth rate. A rapid increase in concentration occurred at temperatures of 10°C and above. The fitted models demonstrated high performance, with <i>R</i><sup><i>2</i></sup> values ranging from 0.964 to 0.997 and RMSE values ranging from 0.15 to 0.51, respectively. Based on the fitted values, bias factor (<i>A</i><sub><i>f</i></sub>) values varied between 1.01 and 1.06, with all accuracy factor (<i>B</i><sub><i>f</i></sub>) values at 1.00. Acceptable prediction zone (APZ) values ranged from 81.8% to 100%. Validation of the models under dynamic temperature conditions for specific strains showed acceptable performance. This study enhances our understanding of <i>S. enterica</i> and <i>L. monocytogenes</i> growth in alfalfa sprouts. The findings of this study could be used to improve the risk assessment of these pathogens in alfalfa sprouts.</p>\u0000 </div>","PeriodicalId":15814,"journal":{"name":"Journal of Food Safety","volume":"44 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-Temperature Domestic Deep-Frying of Soybean-Cake Tempe in Vegetable Cooking Oils: How Many Times Are Stable to Use? 用植物食用油在国内低温油炸大豆蛋糕豆豉:使用多少次才稳定?
IF 1.9 4区 农林科学
Journal of Food Safety Pub Date : 2024-10-08 DOI: 10.1111/jfs.13165
Retno Murwani, Yoni Anggun Endah Kurniati, Ambariyanto Ambariyanto, Anthony J. Sinskey
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