LWT

Wed, 01/22/2020 - 03:20
LWT
Author(s): Meizhen Xie, Xiyu Dong, Yan Yu, Leqi CuiAbstractLipid oxidation is a major food safety issue for edible oils. The objective of this study was to develop a simple method for detecting lipid oxidation through the color change of a composite film. Schiff's reagent which can form color compound with lipid oxidation products—aldehydes was incorporated into polyvinyl alcohol (PVA) to form...
Tue, 01/21/2020 - 03:19
LWT
Author(s): Jian Ju, Yunfei Xie, Hang Yu, Yahui Guo, Yuliang Cheng, Ying Chen, Lijun Ji, Weirong YaoAbstractTo control the spoilage of bread products and reduce the costs associated with preventing their spoilage, the synergistic antifungal effects of natural agents against the main bread spoilage fungi Penicillium roqueforti and Aspergillus niger were studied. After screening 66 groups...
Tue, 01/21/2020 - 03:19
LWT
Author(s): Haiying Cui, Chenghui Zhang, Changzhu Li, Lin LinAbstractIn recent years, studies have found that in addition to nosocomial infections, methicillin-resistant Staphylococcus aureus (MRSA) can even cause community-associated infections, and MRSA spreads through food and animal that produce products in the community. In addition, MRSA can colonize the surface of food and food container...
Tue, 01/21/2020 - 03:19
LWT
Author(s): Moussa S. Diarra, Yousef I. Hassan, Glenn S. Block, John C.G. Drover, Pascal Delaquis, B. Dave OomahAbstractCranberry (Vaccinium macrocarpon) fruits are known for their high polyphenolics content making them a rich source of antioxidants. These polyphenolics have been reported to promote human health and are gaining attention for their antimicrobial activities against foodborne...
Mon, 01/13/2020 - 03:18
LWT
Author(s): Yifang Cao, Ailian Zhou, Donggen Zhou, Xinglong Xiao, Yigang Yu, Xiaofeng LiAbstractResponse mechanism of Cronobacter sakazakii under stress of combination of citral and carvacrol was investigated by transcriptome sequencing. Twenty-five significantly differentially expressed genes were identified to be closely related to the ability of C. sakazakii tolerating the stress after analysis...
Mon, 01/13/2020 - 03:18
LWT
Author(s): Ramachandrappa Naveen Kumar, Bhukya Bhima, Putchaa Uday Kumar, Sudip GhoshAbstractSalmonella spp., one of the major causes of foodborne diseases and a public health burden worldwide. Lytic bacteriophages NINP13076 and NINP1162 infecting Salmonella spp were isolated from sewage water with host strains Salmonella enteritidis (ATCC 13076) and Salmonella spp (MTCC 1162) respectively. The...
Sun, 01/12/2020 - 03:19
LWT
Author(s): Zhiying Wang, Tingting Li, Wenjie Yu, Lu Qiao, Shuming Yang, Ailiang ChenAbstractA low-cost novel lateral flow nucleic acid assay (LFNAA) was developed for rapid and sensitive authentication of yak milk on-site. In this method, a special abasic spacer C3 and tail nucleotide sequence modified reverse primers were innovatively designed for rapid isothermal recombinant polymerase...
Sat, 01/11/2020 - 03:19
LWT
Author(s): Pradeep Puligundla, Taehoon Lee, Chulkyoon MokAbstractAflatoxins are a class of mycotoxins produced predominantly by fungal species such as Aspergillus flavus, Aspergillus parasiticus and Aspergillus nomius. These fungi and their toxins are usually found in a variety of agricultural products. Some mycotoxins are highly toxic, mutagenic, teratogenic and carcinogenic to humans and...
Fri, 01/10/2020 - 03:19
LWT
Author(s): Qile Yang, Yifeng Ding, Ruonan Nie, Lan Yao, Xinyue Wang, Min Zhou, Jia Wang, Xiaohong WangAbstractSalmonella Typhimurium, one of the most common Salmonella spp. serovars, is recognized as a globally important foodborne pathogen. In this study, bacteriophage LPST144 against S. Typhimurium (ATCC13311) was isolated from sewage and selected owing to its excellent lytic capacity. After...
Fri, 01/10/2020 - 03:19
LWT
Author(s): Zijin Zhou, Sophie Zuber, Matteo Campagnoli, Mireille Moser, Frank Devlieghere, Mieke UyttendaeleAbstractDrying technologies are often evaluated on their efficiency to remove moisture and impact on sensory quality of products. The decontamination effect against foodborne pathogens, however, is rarely investigated. This study investigated the inactivation of foodborne pathogens and...
Wed, 01/08/2020 - 03:22
LWT
Author(s): Rok Fink, Anja Potočnik, Martina OderAbstractCleaning the surfaces enables reducing microbial populations and consequently the risk of food contamination. The aim of this research was to study the potential of natural extracts from soap nuts, quillaja bark, and horse chestnuts for the reduction of Escherichia coli on glass surfaces. Analogous to that, we tested the efficacy of standard...
Wed, 01/08/2020 - 03:22
LWT
Author(s): Cibeli Viana, Vanessa Mendonça Soares, Juliano Gonçalves Pereira, Leonardo Ereno Tadielo, Luís Augusto Nero, José Paes de Almeida Nogueira Pinto, Luciano dos Santos BersotAbstractThis study aimed to evaluate the effectiveness of a water spray system in cleaning conveyor belts contaminated with Salmonella and Listeria monocytogenes. Samples were obtained from modular and smooth conveyor...
Wed, 01/08/2020 - 03:22
LWT
Author(s): Yumin Xu, Jinru ChenAbstractIntegrons in Salmonella are critical genetic elements with antibiotic resistance genes that could be disseminated through horizontal gene transfer, imposing risks to public health. This study was undertaken to determine the structure of integrons in Salmonella isolated from flies on cattle farms and examine the transferability of the integrons through...
Wed, 01/08/2020 - 03:22
LWT
Author(s): Qian Hua, Pei Gao, Yanshun Xu, Wenshui Xia, Yingying Sun, Qixing JiangAbstractThe effects of commercial starter cultures on the quality characteristics of fermented fish-chili paste were investigated. Five batches of fish-chili paste were prepared with different starter cultures, namely, SBM-52 (Staphylococcus xylosus, Staphylococcus carnosus, Pediococcus pentosaceus and Pediococcus...
Sun, 01/05/2020 - 03:20
LWT
Author(s): Nam Hee Kim, Hye Won Kim, Hyeree Moon, Min Suk RheeAbstractThis study investigated the synergistic effects of sodium chloride and essential oils (EOs) on three representative halotolerant species of foodborne pathogens, Escherichia coli O157:H7, Listeria monocytogenes, and Staphylococcus aureus. When bacterial cells were treated with carvacrol or thymol alone (0.5–2.0 mM), NaCl alone (...
Sun, 12/29/2019 - 03:21
LWT
Author(s): D. James Bound, Pushpa S. Murthy, P.S. Negi, P. SrinivasAbstractThe anti-quorum sensing property of terpene phenols/alcohols and their deoxyglucosides was evaluated qualitatively against Pseudomonas aeruginosa and Chromobacterium violaceum by agar well diffusion method, and their antimutagenic activity was tested by Ames test. The 2,3-unsaturated and 2,3-dideoxy 1-O-glucoside...
Fri, 12/27/2019 - 03:21
LWT
Author(s): Belal J. Muhialdin, Hana Kadum, Mohammad Zarei, Anis Shobirin Meor HussinAbstractIn this study dragon fruit juice was subjected to lacto-fermentation for 48 h at 37 °C using Lactobacillus plantarum FBS05. The antibacterial and antioxidant activity were evaluated using 96 microtiter plate, DPPH and FRAP assays. The bioactive metabolites were identified using 1H-NMR analysis with...
Thu, 12/26/2019 - 03:20
LWT
Author(s): Xina Yu, Linqiu Li, Honghai Wang, Gongshuai Song, Jie Wang, Shiyan Li, Yang Wang, Qing ShenAbstractIn this study, three popularly consumed salmonids, king salmon (Oncorhynchus tshawytscha), Atlantic salmon (Salmo salar), and rainbow trout (Oncorhynchus mykiss), were studied from the aspects of texture, color, and lipidomics properties. The results indicated that the physical properties...
Sun, 12/22/2019 - 03:19
LWT
Author(s): Anuj Purohit, Rakesh K. Singh, Anand MohanAbstractAttachment of bacteria to abiotic surfaces is the initial phase of attachment process which enables pathogens to persist in food processing environments. The objective of this study was to assess the antimicrobial efficacy of pressurized particulate carbon dioxide (PPCD) against cells of Salmonella Typhimurium and Listeria monocytogenes...
Thu, 12/19/2019 - 03:21
LWT
Author(s): Ying Wang, Zirong Wang, Xuan Zhu, Yahong Yuan, Zhenpeng Gao, Tianli YueAbstractZygosaccharomyces rouxii is an osmotolerant yeast responsible for the quality degradation of apple juices. Cold plasma is a promising method for microbial inactivation. The primary purpose of this work was to study the influence of electrical discharge plasma treatment on hypertonic yeast inactivation in...
Thu, 12/19/2019 - 03:21
LWT
Author(s): Naser Karimi, Ainaz Alizadeh, Hadi Almasi, Shahram HanifianAbstractThere is growing interest in bioactive packaging systems due to their potential for extending the shelf life of food products. In this regard, the aim of this study was to prepare cellulose nanofiber (CNF) and polydextrose incorporated whey protein isolate (WPI) based probiotic nanocomposite film containing...
Wed, 12/18/2019 - 03:34
LWT
Author(s): Kashif Ameer, Yunhee Jo, Rai Muhammad Amir, Hafiz Muhammad Shahbaz, Joong-Ho KwonAbstractSpice is a highly susceptible to microbial contamination and its microbial decontamination by irradiation has been increasing worldwide now. Therefore, a reliable detection method for irradiated food is required in compliance with existing labeling regulations. Two different commercial spice-...
Sun, 12/15/2019 - 03:20
LWT
Author(s): Hui-Min Lin, Shan Zhang, Rui-Sheng Zheng, Jia-Yu Miao, Shang-Gui DengAbstractReady-to-eat wine-pickled Bullacta exarata was treated by atmospheric cold plasma (ACP) at 40, 50 and 60 kV for 3 min and stored at 4 °C for 0, 3, 6, 9 and 12d. The changes of moisture, total fat, total protein content, total volatile basic nitrogen (TVB-N), thiobarbituric acid reactive substances (TBARS),...
Sun, 12/15/2019 - 03:20
LWT
Author(s): Vijay K. Juneja, Marangeli Osoria, C.-A. Hwang, Abhinav Mishra, T. Matthew TaylorAbstractThe heat resistance of a four-stain cocktail of Bacillus cereus was determined in rice. Bags containing inoculated rice samples with hot water were submerged in a temperature-controlled water bath and held at 90.5, 95, or 99 °C for predetermined lengths of time. Surviving spore population were...
Sun, 12/15/2019 - 03:20
LWT
Author(s): Ana Paula M. Pereira, Henrique A. Stellari, Leonardo F. Vilela, Rosane F. Schwan, Anderson S. Sant’AnaAbstractThe behavior of G. stearothermophilus and B. cereus during the fermentation of cocoa beans was assessed in this study. Cocoa fermentation trials lasted seven days and were conducted inoculating a cocktail of spores of strains from each species (3 log CFU/g) daily. During the...
Tue, 12/10/2019 - 03:22
LWT
Author(s): Supaporn Klaykruayat, Busarakorn Mahayothee, Pramote Khuwijitjaru, Marcus Nagle, Joachim MüllerAbstractIn this study, the effects of storage conditions of germinated parboiled rice (GPR) including packaging materials, oxygen, and temperature on its physicochemical qualities, bioactive compounds, antioxidant activity, sensory quality, and microbiological properties were investigated....
Sat, 12/07/2019 - 03:21
LWT
Author(s): Edinéia Bonin, Venício Macedo Carvalho, Vicente Diaz Avila, Naiara Caroline Aparecida dos Santos, Érica Beassi-Zanqueta, César Armando Contreras Lancheros, Isolde Terezinha Santos Previdelli, Tania Ueda Nakamura, Benício Alves de Abreu Filho, Ivanor Nunes do PradoAbstractDue to consumers' increasingly negative perceptions of synthetic preservatives, interest and research on plants and...
Thu, 12/05/2019 - 03:37
LWT
Author(s): Jin-Young Han, Won-Jae Song, Joo Hyun Kang, Sea C. Min, Sangheum Eom, Eun Jeong Hong, Seungmin Ryu, Seongbong Kim, Sangwoo Cho, Dong-Hyun KangAbstractWe evaluated the effect of plasma-activated water (PAW) on the populations of foodborne pathogens and food-spoilage microorganisms on Korean rice cake. PAW was produced by treating distilled water with two atmospheric dielectric-barrier...
Thu, 12/05/2019 - 03:37
LWT
Author(s): Mengna Zhang, Linqiu Li, Gongshuai Song, Honghai Wang, Haixing Wang, Qing ShenAbstractTuna oil (TO) is susceptible to oxidation thus induce unpleasant flavor during storage. Herein, a novel and efficient laser irradiation desorption headspace solid-phase microextraction coupling gas chromatography-mass spectrometry method was developed for fast analysis of flavor change in TO at...
Wed, 12/04/2019 - 03:21
LWT
Author(s): Tareq M. Osaili, Fayeza Hasan, Dinesh Kumar Dhanasekaran, Reyad S. Obaid, Anas A. Al-Nabulsi, Sowmya Rao, Hera Fatima, Mutamed Ayyash, Ioannis Savvaidis, Richard HolleyAbstractThe study aimed to determine D and z-values of Escherichia coli O157:H7 strains and Salmonella spp. in camel lean meat burger (CM) and camel meat burger with hump fat (CMF). Two E. coli O157:H7 strains, S....
Mon, 12/02/2019 - 03:21
LWT
Author(s): Mariana Cap, Paola Fleitas Paredes, Diego Fernández, Marina Mozgovoj, Sergio R. Vaudagna, Anabel RodriguezAbstractThe aim of this study was to evaluate the effect of the pressure level and holding time on the Salmonella spp inactivation during HHP processing in frozen chicken breast fillets. Once identified the most effective process, meat quality (color and texture) was evaluated....
Mon, 12/02/2019 - 03:21
LWT
Author(s): Ali Heshmati, Sabah Ghadimi, Akram Ranjbar, Amin Mousavi KhaneghahAbstractPekmez can be considered as one of the most favored traditional grape's products, however, it can be contaminated with ochratoxin A (OTA). In this regard, for the first time, the effects of unit operations including washing, juicing (crushing and pressing), clarification with the aid of various clarifier (...
Mon, 12/02/2019 - 03:21
LWT
Author(s): Andréia Saldanha de Lima, Darla Volcan Maia, Louise Haubert, Thaís Larré Oliveira, Ângela Maria Fiorentini, Cesar Valmor Rombaldi, Wladimir Padilha da SilvaAbstractAraçá (Psidium cattleianum Sabine) is a native fruit of South America, with high levels of bioactive compounds as well as antimicrobial potential. The aim of this study was to evaluate the antibacterial activity of the...
Mon, 12/02/2019 - 03:21
LWT
Author(s): Suganya Jeyaprakash, Jessica E. Heffernan, Robert H. Driscoll, Damian C. FrankAbstractThe impact of different drying technologies (heat pump drying-HPD, freeze drying-FD, spray drying-SPD and refractance window drying-RWD) on tomato flavor was investigated using non-volatile parameters (pH, Brix, titratable acidity, glucose, fructose, and citric acid) and odor-active volatiles....
Mon, 12/02/2019 - 03:21
LWT
Author(s): Alberto Alía, Juan J. Córdoba, Alicia Rodríguez, Carmen García, María J. AndradeAbstractThe anti-Listeria monocytogenes activity of 30 Debaryomyces hansenii strains was evaluated to be used as protective cultures in sliced dry-cured ham. Some of the yeast strains exhibited inhibitory potential against the L. monocytogenes strains S2, S4-2, S12–1 and S7-2 belonging to the serotypes 1/2a...
Mon, 12/02/2019 - 03:21
LWT
Author(s): Jasim Ahmed, Linu Thomas, Mehrajfatema MullaAbstractHummus is a popular dip of the Middle Eastern countries and widely sold in the supermarket. The consumption of hummus from these sources could be a potential source of microbial contamination and food-borne diseases. In this work, the hummus samples were subjected to high-pressure treatment (300–600 MPa for 15 min) in three selected...
Mon, 12/02/2019 - 03:21
LWT
Author(s): Yu-Wei Chang, Xiang You Zeng, Wen-Chieh SungAbstractPrevious studies have shown chitosans (50–190 kDa) reduce the formation of acrylamide in the Maillard reaction model system. Low-molecular-weight chitosans (52.5 kDa, 71.4 kDa, and 189 kDa) and chitooligosaccharide (1.2 kDa) were added to model systems of glucose/fructose-asparagine solutions in order to evaluate the impact of these...
Mon, 12/02/2019 - 03:21
LWT
Author(s): Francesca Patrignani, Luigi Parrotta, Stefano Del Duca, Lucia Vannini, Lucia Camprini, Marco Dalla Rosa, Oliver Schlüter, Rosalba LanciottiAbstractThis research was aimed at producing, by the use of Yarrowia lipolytica and Debaryomyces hansenii strains, cricket powder hydrolysates endowed with high food safety, functionality, sensory and technological properties to be further used as...
Fri, 10/25/2019 - 03:27
LWT
Author(s): Natalia Parma Augusto de Castilho, Svetoslav Dimitrov Todorov, Leandro Licursi Oliveira, Luciano dos Santos Bersot, Luís Augusto NeroAbstractThe aim of the study was to evaluate the inhibitory activity of Lactobacillus curvatus UFV-NPAC1 and its bacteriocin on Listeria monocytogenes in a controlled food matrix. Fresh sausages were prepared and inoculated with different combinations of...
Sun, 10/20/2019 - 03:25
LWT
Author(s): Aleksandra M. Kocot, Magdalena A. OlszewskaAbstractBiofilms pose a serious hygienic concern in the food processing environment due to the strong antimicrobial tolerance and thus higher risk of food contamination. The aim of this study was to investigate dual species biofilm formation of P. aeruginosa ATCC 27853 or S. aureus FI 2 with L. innocua FI 2 and biofilm inactivation using QAC...
Sat, 10/19/2019 - 03:25
LWT
Author(s): Ilaria BenucciAbstractPost-bottling storage is a critical phase for rosé sparkling wines because they are photosensitive and suffer from degradation over time, resulting in colour and aroma changes. This study evaluated the effect of post-bottling storage conditions on the chromatic characteristics and sensory profile of a rosé sparkling wine, stored in Antique Green glass bottle for 9...
Thu, 10/17/2019 - 03:25
LWT
Author(s): Carlos Luz, Luana Izzo, Alberto Ritieni, Jordi Mañes, Giuseppe MecaAbstractWhey is a by-product of the cheese industry, yet it contains proteins that have a high nutritional value and are an important source of antifungal peptides. Food deterioration caused by toxigenic fungi is one of the challenges of food safety. In this context, trypsin was used to hydrolyse goat milk whey at 37....
Fri, 10/11/2019 - 03:24
LWT
Author(s): Xi Cao, Linmeng Liao, Fengqin FengAbstractLipase catalysis has become the most promising technique for enrichment of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) due to its mild and green conditions. In this study, Trichosporon sp. F1-2 was newly isolated from oil-contaminated sludge, and its extracellular lipase was purified using ammonium sulfate precipitation and DEAE-...
Fri, 10/11/2019 - 03:24
LWT
Author(s): Yuanyuan Pan, Yan Zhang, Jun-Hu Cheng, Da-Wen SunAbstractEffects of ultrasound pretreatments and dielectric barrier discharge (DBD) cold plasma on the inactivation of Listeria monocytogenes (L. monocytogenes) under various growth temperatures were investigated, and membrane fatty acid profiles of L. monocytogenes were also determined. Fatty acids anteiso-C15:0, anteiso-C17:0 and C15:0...
Sun, 10/06/2019 - 03:24
LWT
Author(s): Gökhan Kürşad İncili, Pınar Karatepe, Osman İrfan İlhakAbstractThe aim of this study was to determine the single and combined effect of chitosan and Pediococcus acidilactici (B-LC-20) on Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes in meatballs. After spiking the samples with pathogens, meatball mixture was divided into 4 groups as control, chitosan, B-LC...
Sun, 10/06/2019 - 03:24
LWT
Author(s): A.A.M. Pereira, F.S. Prestes, A.C.M. Silva, M.S. NascimentoAbstractThe aim of this study was to evaluate the behavior of Salmonella Typhimurium ATCC 14028 during peanut dry roasting after pre-adaptation to desiccation stress. To cause desiccation stress, blanched peanut kernels (aw 0.43) were inoculated with S. Typhimurium and stored at 28 °C for up to 180 days. Then, the samples were...
Sun, 10/06/2019 - 03:24
LWT
Author(s): Hangjin Zhang, Yanyun Zhao, Chuting Gong, Shunshan JiaoAbstractRadio frequency (RF) heating has been explored as a new pasteurization technology for low-moisture foods (LMFs). This study investigated the impact of RF heating on sublethal injury of Salmonella Typhimurium in red pepper powder with different initial water activity (aw) (0.44, 0.53, 0.63 and 0.70). Red pepper powder...
Fri, 10/04/2019 - 03:24
LWT
Author(s): Darla Silveira Volcan Maia, Louise Haubert, Isabela Schneid Kroning, Kauana dos Santos Soares, Thaís Larré Oliveira, Wladimir Padilha da SilvaAbstractThe aims of this study were to verify the ability of S. aureus isolates from food poisoning outbreaks to form biofilm, and evaluate the susceptibility of these isolates to Butia odorata extract (BOE) and its effect on S. aureus biofilm....
Fri, 10/04/2019 - 03:24
LWT
Author(s): Veronica Rodriguez-Martinez, Gonzalo Velázquez, Rosario de Jesús Rodríguez Altaif, Fabian Fagotti, Jorge Welti-Chanes, J. Antonio TorresAbstractFollowing deterministic and probabilistic predictive microbiology procedures, cumulative 48 h exponential growth estimates were obtained for Listeria monocytogenes (Lm) and Pseudomonas putida (Pp) as preservation effectiveness indicators for...
Thu, 10/03/2019 - 03:24
LWT
Author(s): Chevise L. Thomas, Harshavardhan Thippareddi, Macc Rigdon, Sanjay Kumar, Robert W. McKee, William M. Sims, Alexander M. StelzleniAbstractThe US meat industry actively seeks antimicrobials to eliminate Shiga toxin-producing Escherichia coli (STEC) in non-intact products. To facilitate this, the anterior end (10.2 cm) of beef striploins (30.5 cm) were inoculated (lean side) with a ca. 8....

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