LWT

Fri, 04/16/2021 - 06:04
LWT
Author(s): Huihui Li, Lijun Tan, Bowen Chen, Jiaming Huang, Qiaohui Zeng, Haiquan Liu, Yong Zhao, Jing Jing Wang This study investigated the antibacterial potency of novel riboflavin-medicated blue light-emitting diode (LED) photodynamic inactivation (PDI) against Salmonella and its biofilms, and also evaluated its potency to kill Salmonella on tuna. Results showed that the PDI inactivated >6....
Fri, 04/16/2021 - 06:04
LWT
Author(s): Sarah H.I. Lee, Antje Fröhling, Oliver Schlüter, Carlos H. Corassin, Elaine C.P. De Martinis, Virginia F. Alves, Tatiana C. Pimentel, Carlos A.F. Oliveira The effect of cold atmospheric pressure plasma (CAPP) on three strains of Staphylococcus aureus and one strain of Listeria monocytogenes on gel discs was studied. A plasma jet operating in argon was used and exposure times were from...
Mon, 04/12/2021 - 06:04
LWT
Author(s): Zifan Wan, N.N. Misra, Guo Li, Kevin M. Keener High voltage atmospheric cold plasma (HVACP) is a non-thermal technology for effective decontamination of foods, resulting in safer and extended shelf-life products. Queso fresco (QF: fresh cheese) is a food product prone to Listeria monocytogenes contamination. Once QF gets contaminated post-manufacture, there is no additional treatment...
Wed, 04/07/2021 - 06:04
LWT
Author(s): Lanhua Yi, Ping Zeng, Jun Liu, Kwok-Yin Wong, Edward Wai-Chi Chan, Yanbing Lin, Kin-Fai Chan, Sheng Chen Due to frequent outbreaks of sprouts-associated foodborne illness, sprouts have been considered as a “high risk” food. In this study, the antimicrobial peptide zp37 (GIKAKIIIKIKK-NH2), which possesses a helical structure, was found to exhibit a minimum inhibitory concentration (MIC...
Sun, 04/04/2021 - 06:04
LWT
Author(s): Xinrui Lv, Xiaokui Gu, Li Wang, Xiaoxin He, Chunai He, Jingfeng Zhang, Lichao Zhao Cronobacter sakazakii (C. sakazakii) in viable but nonculturable (VBNC) state might evade traditional culture detection, and pose a serious threat to food safety. The objective of this study was to establish an improved propidium monoazide (PMAxx), combined with a single intact cell droplet digital PCR (...
Sun, 03/28/2021 - 06:04
LWT
Author(s): Yue Yi, Ahmed G. Abdelhamid, Yumin Xu, Ahmed E. Yousef Salmonella enterica contaminates many food matrices, particularly poultry products. This study was initiated to characterize newly isolated lytic Salmonella phages and to evaluate their efficiency against S. enterica serovar Enteritidis and Typhimurium in liquid whole eggs. Two phages (OSY-STA and OSY- SHC) isolated from livestock...
Wed, 03/24/2021 - 06:04
LWT
Author(s): Arturo B. Soro, Paul Whyte, Declan J. Bolton, Brijesh K. Tiwari Light-emitting diode (LED) technologies are economical and efficient devices that could be considered in poultry processing as disinfection strategies. This study evaluated the efficacy of a LED-based device to reduce the microbial load on chicken meat and investigated it's impact on selected quality parameters. Quality...
Sat, 03/20/2021 - 06:06
LWT
Author(s): Samantha Bolten, Ganyu Gu, Connor Gulbronson, Matthew Kramer, Yaguang Luo, Antonios Zografos, Xiangwu Nou Fresh-cut leafy greens are washed in water with antimicrobials such as free chlorine to mitigate risk of pathogen cross-contamination. Validation of the process in a commercial setting poses challenges, including the identification of effective surrogates that can be used directly...
Fri, 03/19/2021 - 06:04
LWT
Author(s): Khashayar Shahin, Lili Zhang, Abbas Soleimani Delfan, Majid Komijani, Abolghasem Hedayatkhah, Hongduo Bao, Mohadeseh Barazandeh, Mojtaba Mansoorianfar, Maoda Pang, Tao He, Majid Bouzari, Ran Wang Shigella, the globally distributed causative agent of bacillary dysentery, is an important microbial contamination in raw and ready-to-eat foods. The recent commercial use of phage cocktails...
Thu, 03/18/2021 - 06:05
LWT
Author(s): Mi Rae Kim, Sangha Han, Sa Reum Park, Yoah Moon, Sang-Do Ha This study compared the effectiveness between sodium hypochlorite (NaOCl) and its alternatives—chlorine dioxide (ClO2) and peroxyacetic acid (PAA)—against murine norovirus-1 (MNV−1) and hepatitis A virus (HAV) contamination on carrot and lotus root. ClO2 treatment at 123–300 and 170–300 ppm for 3 min reduced MNV-1 by 1–2.51...
Thu, 03/18/2021 - 06:05
LWT
Author(s): Haiying Cui, Jingyu Lu, Changzhu Li, Lin Lin A novel controlled-release antibacterial nanofiber was fabricated by electrospinning to load eugenol@cationic starch nanoparticles (EG@CStNPs) into phospholipid nanofibers (EG@CSt/P nanofibers). Taking advantage of the phospholipase and amylase secreted by Bacillus cereus (B. cereus), the controlled release of eugenol in EG@CSt/P nanofibers...
Thu, 03/18/2021 - 06:05
LWT
Author(s): Ya-Ke Li, Hu Chen, Mei Shu, Chan Zhong, Yan Bi, Huan-Huan Yang, Guo-Ping Wu Bacteriophage is a new biological control tool for the prevention and treatment of foodborne pathogens. In this study, an alkali-resistant phage against Escherichia coli (E. coli), named JN01, was isolated and characterized from wastewater. It exhibited lytic activities against 16 of 20 E. coli strains, 11 of...
Wed, 03/17/2021 - 06:04
LWT
Author(s): Kübra Akkurt, Burçe Ataç Mogol, Vural Gökmen Consumers tend to reduced-fat products recently due to health concerns, which create a need to design reduced-fat products either changing the recipes or the processes. In the last decade, baking was introduced to reformulated potato chips production to low-fat chips; however it might lead to higher acrylamide formation due to increased...
Fri, 03/05/2021 - 06:04
LWT
Author(s): B. Tenderis, B. Kılıç, H. Yalçın, A. Şimşek This work was undertaken to evaluate the effectiveness of using sodium lactate (SL), encapsulated (e) and unencapsulated (u) polyphosphates (PP; sodium tripolyphosphate, STP; sodium acid pyrophosphate, SPP), and various combinations of these additives on growth of Listeria monocytogenes and Pseudomonas fluorescens in cooked ground beef during...
Fri, 03/05/2021 - 06:04
LWT
Author(s): Juan Wang, Zhi Wang, Jumei Zhang, Yu Ding, Zonghao Ma, Fufeng Jiang, Xiang Nie, Shengjun Tang, Moutong Chen, Shi Wu, Haiyan Zeng, Tao Lei, Xiaojuan Yang, Shuhong Zhang, Qingping Wu Campylobacter jejuni is a common and important zoonotic pathogen that can cause bacterial gastroenteritis and other diseases, even leading to Guillain-Barré Syndrome or death. It is therefore necessary to...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Natalie Rauber Kleinubing, Tassiana Ramires, Simone de Fátima Rauber Würfel, Louise Haubert, Leticia Klein Scheik, Frederico Schmitt Kremer, Graciela Volz Lopes, Wladimir Padilha da Silva Campylobacter jejuni is the main cause of foodborne gastroenteritis in humans throughout the world. Besides impairing the treatment of campylobacteriosis, the presence of resistant C. jejuni isolates...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Angélica Olivier Bernardi, Andrieli Stefanello, Marcelo Valle Garcia, Marina Venturini Copetti This work analyzed the antifungal capacity of different sanitizers allowed in the food industry against species involved in the spoilage of dairy and meat products and compared the results with sanitizing products used in the food industry. Tests were carried out according to the protocol for...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Durmuş Sert, Emin Mercan The aim of this study was to investigate the effects of the ozone treatment (OT) to milk concentrate (MC) and whey concentrate (WC) on the physicochemical and textural properties, as well as, on the microbial, antibiotic, and aflatoxin content. For that purpose, OT was applied to MC and WC samples 0 (control), 5, 10, 15, 30, or 60 min. OT (60 min) achieved 18.9...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Jae-Hyun Yoon, Do-Young Jeong, Su-Bin Lee, Songyi Choi, Myeong-In Jeong, Sun-Young Lee, Se-Ri Kim This study was conducted to evaluate the effectiveness of 1–3 % organic acids alone or in combination with 0.1 % nisin and/or 40 kHz ultrasound (US) on the reduction of Listeria monocytogenes in king oyster mushrooms stored at 25 ºC. While L. monocytogenes in king oyster mushrooms was...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Yifang Cao, Li Li, Yan Zhang, Fengsong Liu, Xinglong Xiao, Xiaofeng Li, Yigang Yu This study aimed to select for the quorum sensing receptor protein of C. sakazakii CICC 21544, and then evaluate the role of the receptor protein in stress tolerance. SdiA was identified as the receptor by sequence alignment. C. sakazakii CICC 21544 wild type (WT), the sdiA mutant strain (ΔsdiA), and the...
Thu, 03/04/2021 - 06:06
LWT
Author(s): Gizem Cufaoglu, Pinar Ambarcioglu, Naim Deniz Ayaz Due to its ability to survive in challenging conditions, Listeria species have been isolated in almost all kinds of foods. This study aimed to estimate the prevalence of Listeria spp. and antibiotic-resistant L. monocytogenes isolates in all types of foods reported in Turkey using meta-analysis. Overall, 103 publications included to...
Wed, 03/03/2021 - 06:04
LWT
Author(s): Erica Tirloni, Simone Stella, Cristian Bernardi, Per Sand Rosshaug In this study, cardinal parameter models were developed for the growth of Salmonella spp. in different brands of Italian fresh ricotta cheese. Two models were proposed, including the effect of temperature or the combined effect of temperature, pH, and concentration of lactic, citric and, acetic acid. Validation of the...
Wed, 03/03/2021 - 06:04
LWT
Author(s): İnci Cerit, Omca Demirkol The aim of this study was to examine the effects of thiol compounds, glutathione (GSH), cysteine (CYS) and N-acetylcysteine (NAC), on the color, antioxidant activity, total phenolic, ascorbic acid and acrylamide content of French fries which were fried at 180 °C for 6 min. Three different concentrations (0.5%, 1.0%, 2.0%) of each thiol compound were tested....
Wed, 03/03/2021 - 06:04
LWT
Author(s): Mengke Su, Qian Jiang, Jinhu Guo, Yuxin Zhu, Shuai Cheng, Ting Yu, Shanshan Du, Yifan Jiang, Honglin Liu Edible oil is easy to be polluted by polycyclic aromatic hydrocarbons (PAHs) in production, processing, storage and use. Rapid screening of oil quality and safety is a huge demand in food industry and government regulation. Usually, sample pretreatment is needed for PAHs detection...
Sun, 02/28/2021 - 06:04
LWT
Author(s): Amal S. Albedwawi, Mark S. Turner, Amin N. Olaimat, Tareq M. Osaili, Anas A. Al-Nabulsi, Shao-Quan Liu, Nagendra P. Shah, Mutamed M. Ayyash The European Food Safety Authority and World Health Organization have been screening foods for acrylamide contamination and have published various guidelines to educate industries about mitigation strategies. There are several approaches to reduce...
Sun, 02/28/2021 - 06:04
LWT
Author(s): Giti Paimard, Reza Mohammadi, Roya Bahrami, Kianoush Khosravi‐Darani, Zahra Sarlak, Milad Rouhi In this study, novel selenium nanoparticles (Se NPs) were synthesized based on cross-linked Se-chitosan/l-cysteine nanoparticles and used for the efficient removal of patulin from an aqueous solution. Different functional groups at the surface of these cross-linked Se NPs interacted with...
Mon, 02/22/2021 - 06:04
LWT
Author(s): Zhaohui Wei, Chengjun Shan, Lixia Zhang, Da'e Ge, Ying Wang, Xiudong Xia, Xiaoli Liu, Jianzhong Zhou The foodborne pathogen Listeria monocytogenes is the major cause of listeriosis. We isolated a novel lantibiotic subtilin JS-4 from Bacillus subtilis JS-4 and analyzed its effects against L. monocytogenes. The bacteriocin was extracted with n-butanol, purified by Sephadex LH-20 gel-...
Sun, 02/21/2021 - 06:05
LWT
Author(s): Won-Jae Song, Dong-Hyun Kang In this study, we evaluated the efficacy of dry heat treatment on 3 types of packaging to inactivate Salmonella on almonds. Almonds inoculated with Salmonella Typhimurium, Salmonella Senftenberg or Salmonella Enteritidis PT 30 were treated with dry heat under three types of packaging (open, ambient-sealed or vacuum-sealed), and their color changes were...
Fri, 02/19/2021 - 06:05
LWT
Author(s): Chia-Min Lin, Samuel Herianto, Shih-Ming Syu, Cian-Huei Song, Hsiu-Ling Chen, Chih-Yao Hou Concerns related to foodborne pathogens such as Salmonella enterica serovar Enteritidis (SE) necessitate the decontamination of eggs. Multiple studies have successfully demonstrated the use of non-thermal plasma (NTP) technology in inactivating SE on artificially inoculated shell eggs. However,...
Wed, 02/17/2021 - 06:04
LWT
Author(s): Conrad O. Perera, Mona Ahmed J. Alzahrani Application of ultrasound has been considered a “green” technology, because it offers advantages in terms of selectivity, better quality, use of less chemicals, and energy efficiency. Hence, it is well suited for extraction of bioactive compounds from plant and animal materials, which generally require large quantities of organic solvents. In...
Mon, 02/15/2021 - 06:04
LWT
Author(s): Jun Xian Wong, Suzita Ramli The present study focused on the antimicrobial assessments of Centella asiatica for different extracts (ethanol, methanol, water, and hexane) against Bacillus cereus, Escherichia coli O157: H7, Salmonella enterica serovar Typhimurium, Staphylococcus aureus, Aspergillus niger, and Candida albicans. Ethanol achieved the highest extraction yields, total...
Fri, 02/12/2021 - 06:04
LWT
Author(s): Yuting Shang, Qinghua Ye, Shuzhen Cai, Qingping Wu, Rui Pang, Shuanghong Yang, Xinran Xiang, Chufang Wang, Fei Zha, Yu Ding, Yinzhi Zhang, Jiasheng Wang, Xiulan Sun, Jumei Zhang Various molecular techniques have been introduced for Salmonella detection. Loop-mediated isothermal amplification (LAMP) is a simple and easy-to-operate detection method compared with conventional PCR. However...
Wed, 02/10/2021 - 06:04
LWT
Author(s): Ming-Hsun Shen, Rakesh K. Singh Aflatoxins (AFs) contamination is prevalent in foods around the world. Many studies have been performed to recover foods contaminated with unacceptable levels of AFs. This review evaluated AFs detoxification technologies of ultraviolet (UV), hydrogen peroxide (H2O2), and their combination. Microscopic evidence has demonstrated that AFs are mainly...
Sun, 02/07/2021 - 06:04
LWT
Author(s): Mohammad Sohrabi Balsini, Mohammad Reza Edalatian Dovom, Rassoul Kadkhodaee, Mohammad Bagher Habibi Najafi, Masoud Yavarmanesh This study investigates the removal of aflatoxin B1 by viable and heat treated cells of Saccharomyces cerevisiae (PTCC 5052) and Lactobacillus rhamnosus GG (ATCC 53103) in a model system as a function of time and salt concentration. Moreover, the stability of...
Fri, 02/05/2021 - 06:04
LWT
Author(s): Noelia Pallarés, Houda Berrada, Josefa Tolosa, Emilia Ferrer The high demand of fresh-like products to meet the fruits and vegetables serving encouraged the implementation of non-thermal food processing techniques, such as high pressure processing (HPP) and pulsed electric fields (PEF), with low impact on nutritional components. The aim of the present work is to evaluate the...
Wed, 02/03/2021 - 06:04
LWT
Author(s): Takashi Kuda, Makoto Nishizawa, Daiki Toshima, Keiichiro Matsushima, Seiichiro Yoshida, Hajime Takahashi, Bon Kimura, Takashi Yamagishi Previous studies reported the activity of fucoidans and polyphenols (phlorotannins) extracted from brown algae against enveloped viruses. The aim of this study was to investigate the effects of brown macroalgae on the non-enveloped norovirus. Aqueous...
Fri, 01/29/2021 - 06:05
LWT
Author(s): Roger Junges da Costa, Andresa Pereira da Silva, Renata Nobre da Fonseca, Silvia de Oliveira Hübner, Elen Silveira Nalério, Juliana de Lima Marques, Helena Reissig Soares Vitola, Wladimir Padilha da Silva, Eduarda Hallal Duval, Ângela Maria Fiorentini The aim of this study was to isolate and characterize bacteriocinogenic lactic acid bacteria (LAB) from mutton carcasses after slaughter...
Thu, 01/28/2021 - 06:09
LWT
Author(s): Shabir Ahmad Mir, Saqib Farooq, Manzoor Ahmad Shah, Sajad Ahmad Sofi, B.N. Dar, Afshan Mumtaz Hamdani, Amin Mousavi Khaneghah Sprouts are the germinated seeds of herbaceous plants, rich sources of health-promoting bioactive compounds, vitamins, and minerals compared to the adult edible plant parts. Sprouts are gaining popularity among consumers. However, numerous foodborne outbreaks...
Mon, 01/25/2021 - 06:04
LWT
Author(s): Phillip Luu, Vijay Singh Chhetri, Marlene E. Janes, Joan M. King, Achyut Adhikari Gaseous chlorine dioxide, a strong oxidizing agent can be utilized as an effective alternative sanitizing agent. This study evaluated the efficacy of low concentration (≤5 mg/L) gaseous chlorine dioxide (ClO₂) treatment with gas permeable sachets in reducing the levels of Salmonella, E. coli O157:H7, and...
Wed, 01/06/2021 - 06:03
LWT
Author(s): Yiying Huang, Steve H. Flint, Shubo Yu, Yu Ding, Jon S. Palmer Bacillus cereus group (B. cereus sensu lato) are ubiquitously distributed in diverse environments. In this study, eight isolates including B. cereus, B. paranthracis and B. toyonensis species, from dairy and potato products, were assessed for biofilm formation, sporulation and genetic information including biofilm-related...
Fri, 01/01/2021 - 06:03
LWT
Author(s): Fernanda Cosme, António Inês, Davide Silva, Luís Filipe-Ribeiro, Luís Abrunhosa, Fernando M. Nunes Ochratoxin A (OTA) is a mycotoxin frequently found in wines, with an allowed maximum limit of 2.0 μg/L. To optimise OTA removal from white and red wines at high levels (10.0 μg/L) using activated carbons (ACs), different commercial deodorising ACs were tested. OTA elimination from white...
Tue, 12/29/2020 - 06:06
LWT
Author(s): Hui Guo, Pengfei Yu, Shubo Yu, Juan Wang, Junhui Zhang, Ying Zhang, Xiyu Liao, Shi Wu, Qinghua Ye, Xiaojuan Yang, Tao Lei, Haiyan Zeng, Rui Pang, Jumei Zhang, Qingping Wu, Yu Ding Bacillus cereus is a well-known foodborne pathogen around the world and can be found in a variety of foods. However, few studies have been conducted to evaluate the risk of B. cereus in quick-frozen food in...
Fri, 12/18/2020 - 06:04
LWT
Author(s): Fan Li, Qinghua Ye, Moutong Chen, Yuting Shang, Jumei Zhang, Yu Ding, Liang Xue, Shi Wu, Juan Wang, Rui Pang, Tao Lei, Haiyan Zeng, Qingping Wu Detection of the foodborne pathogen Listeria monocytogenes serotype 4c, one of the predominant serotypes in aquatic products, is difficult and time-consuming. Our objective was to identify novel target genes for real-time PCR detection of L....
Sun, 12/13/2020 - 06:02
LWT
Author(s): Xinyao Wei, Long Chen, Byron D. Chaves, Monica A. Ponder, Jeyamkondan Subbiah This research investigated the effect of temperature and relative humidity (RH)conditions during ethylene oxide (EtO) fumigation for inactivation of Salmonella and Enterococcus faecium NRRL B-2354on wholeblack peppercorns. Black peppercorn samples were inoculated with a five-strain Salmonella cocktail or E....
Sun, 12/13/2020 - 06:02
LWT
Author(s): Sudarsan Mukhopadhyay, Kimberly Sokorai, Dike O. Ukuku, Tony Jin, Xuetong Fan, Ocean M. Olanya, Juncai Leng, Vijay Juneja The microbial safety of fresh produce continues to be a real concern. Novel nonthermal technologies are required to lessen the risk of pathogen contamination. The objective of this research was to develop and evaluate the effects of direct and in-package pulsed...
Sat, 12/12/2020 - 06:03
LWT
Author(s): Kelly Cristina Massarolo, José Rodrigo Mendoza, Tushar Verma, Larine Kupski, Eliana Badiale-Furlong, Andréia Bianchini The potential reduction of aflatoxins B1, B2, G1 and G2 levels t hrough extrusion as well as their bioaccessibility in corn-based products were investigated. Cornmeal samples were spiked with aflatoxins (50 ng g−1) and extruded in the absence and presence of high-...
Thu, 12/10/2020 - 06:03
LWT
Author(s): Caiping Huang, Bangzhu Peng A high-performance nitrogen-doped chitosan-TiO2 nanocomposite to be used as a photocatalyst for patulin degradation in apple juice was successfully prepared by a simple precipitation method. The structure and properties were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray...
Sat, 12/05/2020 - 06:10
LWT
Author(s): Junyi Zhang, Jingyi Wang, Dandan Zhao, Jianxiong Hao The disinfection efficacy of slightly acidic electrolyzed water (SAEW) has been recognized in food industry. However, the application of single SAEW limited its disinfection potential. The efficacy of the two-step disinfection with SAEW for the reduction of L. monocytogenes contamination on different food raw materials was evaluated...
Thu, 12/03/2020 - 06:09
LWT
Author(s): Rodrigo C. Oliveira, Josefina Cortés-Eslava, Sandra Gómez-Arroyo, Magda Carvajal-Moreno Alternative decontamination strategies focusing on the reduction and detoxification of mycotoxins in food and feed products have gained increasing attention in recent years. In the present study, we explored the potential of thyme, clove and rosemary essential oils (EOs) to inactivate aflatoxin B1 (...
Mon, 11/30/2020 - 06:05
LWT
Author(s): Jing Qian, Chen Wang, Hong Zhuang, Mustapha Muhammad Nasiru, Jianhao Zhang, Wenjing Yan Plasma-activated lactic acid (PALA) was assessed as a novel sanitizer to improve the microbiological safety of fresh chicken. Three-hundred mL of 0-0.20 % (v/v) lactic acid (LA) was treated with a plasma jet for 40-100 s using air as the plasma-forming gas, with subsequent application to chicken...

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