Article
Food Science & Technology
Camila Brombilla Moro, Jessica Goncalves Lemos, Alessandra Marcon Gasperini, Andrieli Stefanello, Marcelo Valle Garcia, Marina Venturini Copetti
Summary: This study evaluated the susceptibility of spoilage fungi in bakery products to acetic, sorbic, and propionic acids at different pH levels, finding significant variations in tolerance among the different species.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Food Science & Technology
Nadine Rueegg, Bettina Roecker, Selcuk Yildirim
Summary: The study showed that combining an oxygen scavenging film with modified atmosphere packaging can extend the mould free shelf life of bakery products. The use of CO2 in modified atmosphere can further prolong the shelf life of products, while the use of CSP with MA significantly reduces the oxygen concentration in the headspace, thereby prolonging the shelf life.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Food Science & Technology
Ourania Misiou, Christina Zourou, Konstantinos Koutsoumanis
Summary: A cardinal model was developed to predict the effects of temperature, pH, and water activity on Bacillus coagulans DSM 1 growth rate, and validated in five selected food products. The model performed well in predicting the growth behavior of B. coagulans in all tested products, demonstrating its effectiveness in predicting spoilage risks in non-refrigerated ready-to-eat food products during distribution and storage.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Renata Roncon, Giovanni Borsoi, Joao L. Parracha, Ines Flores-Colen, Rosario Veiga, Lina Nunes
Summary: This study examined the application of acrylic-based and siloxane-based hydrophobic products in External Thermal Insulation Composite Systems (ETICS) to assess their compatibility, effectiveness, and durability. The results showed that these products reduced water absorption, slightly affected drying rates, and improved water vapor permeability of the systems. Even after aging, the products still demonstrated reasonable effectiveness and enhanced water vapor diffusion in the majority of cases.
Article
Chemistry, Multidisciplinary
Joel T. Tetteh, Richard Barimah, Paa Kow Korsah
Summary: The impact of ionic association with the carbonate surface on carbonate wettability was investigated using a triple layer model. It was found that low Mg2+ and high SO42- concentrations have different effects on the calcite-brine interface and the oil-brine interface, and these ion influences can trigger wettability alteration in modified composition brine.
Article
Veterinary Sciences
Lenka Necidova, Sarka Bursova, Danka Harustiakova, Katerina Bogdanovicova
Summary: Staphylococcal food poisoning is a common cause of foodborne intoxication worldwide. This study evaluated the impact of storage conditions on staphylococcal enterotoxin production in sandwiches and buttercream puffs. It was found that improper storage conditions may lead to enterotoxin production in buttercream puffs.
ACTA VETERINARIA BRNO
(2022)
Article
Chemistry, Multidisciplinary
Zihao Meng, Lixin Zhang, He Li, Runmeng Zhou, Haoran Bu, Yongchao Shan, Xiao Ma, Ruihao Ma
Summary: This paper designs a BP-PID-Smith prediction compensator for the pH regulation system to compensate for the nonlinearity and time lag, improving the control accuracy. Experimental results show that the compensator has good practicality and robustness.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Thomas Brauge, Sylvain Trigueros, Arnaud Briet, Sabine Debuiche, Guylaine Leleu, Benoit Gassilloud, Amandine Wilhelm, Jean-Sebastien Py, Graziella Midelet
Summary: This study evaluated the performance of MALDI-TOF MS with the Bruker BioTyper V7.0.0 database for identifying bacterial strains from seafood and sea water samples, compared to 16S rDNA sequencing. Results showed that MALDI-TOF MS allowed better strain identification at the species level, while 16S rDNA sequencing mainly identified bacteria at the genus level.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Food Science & Technology
Ourania Misiou, Georgios Kasiouras, Konstantinos Koutsoumanis
Summary: A model was developed to study the effect of pH and water activity on the growth rate of Geobacillus stearothermophilus. The model was validated using 7 non-refrigerated plant-based milk alternatives and showed good performance in predicting spoilage during distribution and storage.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Electrochemistry
D. Mamedov, S. Zh. Karazhanov, N. Alonso-Vante
Summary: Nanoparticles of CeO2 with different morphologies were synthesized and compared with commercial ceria particles. The defectivity of CeO2 was found to influence its absorption edge energy and photocatalytic performance under narrow band UV-light condition. The surface charge condition of CeO2 particles played a crucial role in the decolorization of methylene blue dye, and the cubic-morphology CeO2 showed better performance despite its low BET surface area. However, the photopotential of ceria electrodes was lower than that of TiO2, resulting in a worse photocatalytic performance of CeO2 compared to TiO2.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Yongchao Shan, Lixin Zhang, Xiao Ma, Xue Hu, Zhizheng Hu, He Li, Chanchan Du, Zihao Meng
Summary: This study proposed a modified fuzzy-PID-Smith predictive compensation algorithm for adjusting the pH value of liquid fertilizer. Experimental results showed that the algorithm significantly reduced the maximum overshoot compared to other two algorithms at different output flow rates, with an average of 0.23%. The average steady-state time of adjusting the pH value of liquid fertilizer from 7.3 to 6.8 was 72 s, which was superior to the 145 s and 3.2% of fuzzy-PID and 130 s and 1.4% of the Smith controller.
Article
Food Science & Technology
Sonia Marin, Luisa Freire, Antoni Femenias, Anderson S. Sant'Ana
Summary: Predictive modelling is increasingly used in food production to predict fungal spoilage, assess efficacy of antimicrobials, and analyze the impact of climate change on fungal distribution and mycotoxin occurrence. There is a growing interest in using predictive modelling to analyze fungal growth and mycotoxin contamination in cereals and nuts.
CURRENT OPINION IN FOOD SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Marc R. Presume, Rigo F. Soler, Moses E. Chilenje, Jorge L. Sandoval, Luis P. Avila, Laura J. Garner, Robert P. Mason, Eric K. Altom, Charles W. Starkey
Summary: This research focuses on using protein structure forming food technology to improve the handling of difficult co-products in pet food and treats. The addition of sodium alginate and encapsulated calcium lactate showed promise in increasing the inclusion of liver without negatively impacting the final product's quality. The combination of beef liver and beef heart also proved to be beneficial for creating nutritious pet foods. Overall, this research is important for enhancing the quality of pet food and the utilization of co-products.
Article
Food Science & Technology
Tatiana Bojnanska, Anna Kolesarova, Eva Ivanisova, Jozef Bojnansky
Summary: The paper explores the potential of designing breads and pastries by replacing wheat or rye with non-bakery raw materials to enhance their nutritional value. The addition of these materials affects the rheological properties of the dough and the cost of the final product. The study raises questions about consumer willingness to pay extra for such nutritionally enriched foods.
JOURNAL OF MICROBIOLOGY BIOTECHNOLOGY AND FOOD SCIENCES
(2023)
Proceedings Paper
Agricultural Engineering
Y. P. Dombrovskaya, A. A. Derkanosova, V. V. Pushkar, M. Manukovskaya, E. A. Klimova, N. A. Galochkina
Summary: The study proposed a method of using hypericum, honey, and sour cream to prevent potato disease in bread. Fermenting water-honey extract with Str.lactis and Str.cremoris was found to improve dough fermentation process and quality, resulting in finished products with better organoleptic and physico-chemical properties.
INTERNATIONAL CONFERENCE ON PRODUCTION AND PROCESSING OF AGRICULTURAL RAW MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Lihan Huang, Nurul Hawa Ahmad, Vijay Juneja, Erika Stapp-Kamotani, Jose Gabiola, Udit Minocha, Robert Phillips, Marie Hooker, Isabel Walls, Kim Cook, James Lindsay
Summary: This study investigated the growth kinetics of foodborne pathogen B. cereus during the commercial production of liquid egg yolk using PLA(2) treatment. The results showed that B. cytotoxicus NVH391-98 can grow prolifically at 50 degrees C, with estimated minimum, optimum, and maximum temperatures of 16.7-18.5, 47.8-48.1, and 52.1-52.4 degrees C, respectively. The dynamic model was validated with isothermal curves and it was found that holding the temperature below 15 degrees C or above 55 degrees C can effectively prevent the growth of B. cytotoxicus in egg yolk.
Article
Biotechnology & Applied Microbiology
Giacomo Mantegazza, Robin Duncan, Nicolo Telesca, Giorgio Gargari, Susanna Perotti, Patrizia Riso, Simone Guglielmetti
Summary: This study investigates whether salad-associated LAB can survive the gastrointestinal transit (GIT) and contribute to the gut microbiota. The results suggest that salad-associated LAB can survive in the gastrointestinal tract, but their quantity does not significantly alter the composition of the gut microbiota.
Article
Biotechnology & Applied Microbiology
Itsaso Baztarrika, Adrian Salazar-Sanchez, Lorena Laorden, Ilargi Martinez-Ballesteros, Rodrigo Alonso, Irati Martinez-Malaxetxebarria
Summary: The infection mechanisms of Arcobacter are still uncertain. This study found that Arcobacter isolates from food and water sources were able to adhere and invade Caco-2 cells, and carried at least two virulence markers. A. butzleri showed higher virulent activity compared to A. cryaerophilus, while A. lanthieri, A. skirrowii, and A. vitoriensis exhibited even higher adhesion and invasion values. Sewage isolates were more adherent and invasive, and had a higher gene content. The association between cadF and hecA with high adhesion capability was identified for the first time.
Article
Biotechnology & Applied Microbiology
Balaji Sundararaman, Karen Shapiro, Andrea Packham, Lauren E. Camp, Rachel S. Meyer, Beth Shapiro, Richard E. Green
Summary: Pathogenic bacteria, viruses, fungi, and protozoa can cause food and waterborne diseases, and surveillance methods are needed. In this study, CNER method was used to prepare enrichment baits for difficult-to-grow pathogens. This method allows direct sequencing of pathogens from samples.
Article
Biotechnology & Applied Microbiology
Guanghui Zhou, Pengcheng Dong, Xin Luo, Lixian Zhu, Yanwei Mao, Yunge Liu, Yimin Zhang
Summary: Interactions between bacterial species in the formation of dual-species biofilms in the food industry are affected by environmental stresses, such as temperature and pH. This study found that the combination of cold and acid stresses significantly increased biofilm formation, and different temperatures resulted in variations in the presence of specific bacterial species and the secretion of extracellular substances. The findings provide valuable insights for addressing mixed biofilms in food processing under diverse stressful conditions.
Article
Biotechnology & Applied Microbiology
Carmen Sanchez, Sonia Garde, Jose Maria Landete, Javier Calzada, Dave J. Baker, Rhiannon Evans, Arjan Narbad, Melinda J. Mayer, Marta Avila
Summary: This study sequenced and compared the genomes of bacteriophages active against C. tyrobutyricum, identifying novel species and phage proteins. A phage showed high lytic activity against C. tyrobutyricum cells and remained stable under different environmental conditions. Additionally, engineered strains successfully delivered endolysin and fluorescent protein to dairy products without affecting their technological properties.
Article
Biotechnology & Applied Microbiology
Danai Etter, Michael Biggel, Mariella Greutmann, Nicole Cernela, Sophia Johler
Summary: Bacillus cytotoxicus is a thermotolerant bacterium that is linked to rare but sometimes fatal cases of diarrheal disease. It is mostly found in dehydrated foods containing potato starch or insects and may be missed in routine screening.
Article
Biotechnology & Applied Microbiology
Tong Jin, Xiangjun Zhan, Liuxin Pang, Bo Peng, Xinpeng Zhang, Wenxiu Zhu, Baowei Yang, Xiaodong Xia
Summary: The study found that CpxAR TCS is an important regulatory mechanism for the virulence of C. sakazakii. Mutants showed weakened adhesion, invasion, and survival ability, and exhibited attenuated virulence in animal models. In addition, CpxAR TCS is involved in regulating the expression of genes associated with bacterial virulence and cellular invasion.
Article
Biotechnology & Applied Microbiology
Soo-Hwan Kim, Sang-Hyun Park, Jun-Bae Ahn, Dong-Hyun Kang
Summary: In this study, a semi continuous SHS system was developed to inactivate foodborne pathogens on radish seed surfaces and enhance the seeds' salinity tolerance. The results showed that higher temperature and more treatments led to a significant reduction in microbial count on the seed surface.
Article
Biotechnology & Applied Microbiology
Yujun Zhai, Weina Tian, Kewei Chen, Linshu Lan, Jianquan Kan, Hui Shi
Summary: This research investigates the role of flagella-related genes in the adhesion of E. coli O157:H7 and the effects of certain cations on bacterial adhesion and motility. The results demonstrate that flagellar-mediated motility is critical in the early stage of adhesion, and the presence of Fe2+, Ca2+, and Mn2+ affects the adhesion and motility of wildtype strains but not flagellar function-impaired strains. These findings provide new insights into the mechanisms of bacterial adhesion and have implications for the development of anti-adhesion agents.
Article
Biotechnology & Applied Microbiology
Mariana Marggraf, Andrea Barac, Jens Andre Hammerl, Stefan Hertwig
Summary: Isolating Yersinia enterocolitica from food is challenging due to overgrowth by other microflora and the lack of a selective medium. The authors improved the standard isolation procedure, resulting in a more sensitive method, reduced background bacteria, and time savings.
Article
Biotechnology & Applied Microbiology
Rafael D. Chaves, Samuel H. Kumazawa, Amin Mousavi Khaneghah, Veronica O. Alvarenga, Humberto M. Hungaro, Anderson S. Sant'Ana
Summary: This study investigated the susceptibility to sanitizers and biofilm-forming ability of 43 Salmonella enterica and Listeria monocytogenes strains on stainless steel surfaces. The results showed variations in susceptibility to sanitizers and biofilm resistance among different strains of the pathogens, with chlorine compounds being more effective in inactivating planktonic cells and biofilms.
Article
Biotechnology & Applied Microbiology
So Yeong Mun, Wooje Lee, Soo-Young Lee, Ji Yoon Chang, Hae Choon Chang
Summary: This study reveals that lactobacilli with a strong defense system dominate the final stage of kimchi fermentation and proposes a model for the succession mechanism of kimchi lactobacilli.