Article
Materials Science, Multidisciplinary
Qingfu Wang, Mingxing Zhang, Chuntian Yang, Yi Yang, Enze Zhou, Pan Liu, Daiqiang Jin, Dake Xu, Lin Wu, Fuhui Wang
Summary: This study investigated the microbiologically influenced corrosion (MIC) of 316L stainless steel (SS) caused by oral microbiota using HOMINGS 16S rRNA gene sequencing technology, electrochemical, and surface analysis techniques. The results showed that oral microbiota formed multi-species biofilms with varying structures and composition of bacterial strains on the 316L SS coupons. The presence of oral microbiota led to more severe pitting corrosion and faster dissolution of metallic ions. The findings suggest that electroactive microorganisms in oral microbiota may play a significant role in accelerating corrosion.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Microbiology
Paulo Moreira-Filho, Paloma de Paula da Silva Figueiredo, Artur Capao, Luciano Procopio
Summary: This study evaluated the corrosion influence of marine bacteria Bacillus cereus Mc-1 on different metals. The results demonstrated that the composition and additives in the culture medium had significant effects on corrosion. These findings are important for understanding the impact of this bacterium on metal corrosion in marine environments.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Thermodynamics
Yu Zhang, Zhentao Zhang, Junling Yang, Yunkai Yue, Huafu Zhang
Summary: A superhydrophobic surface with excellent evaporation characteristics and anti-adhesion properties was fabricated by a simple chemical etching method. Compared to smooth surfaces, the superhydrophobic surface reduced the evaporation rate of lower concentration droplets and delayed the evaporation of higher concentration droplets. Additionally, the superhydrophobic surface effectively reduced the adhesion of high viscosity liquids.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Physics, Applied
F. Marlow, S. Josten, S. Leiting
Summary: The work functions of different stainless steels were investigated, ranging from 4.08 to 4.19 eV. These work functions characterize the passive layer on top of the stainless steel bulk material, which confers corrosion resistance and controls electronic and electrochemical applications. Structured measurements of these materials are particularly important for applications such as solar cells or fuel cells. Surprisingly, composition changes in the stainless steel have a minimal effect on the work function, possibly due to a consistent number of d electrons responsible for the electronic band structure.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Biotechnology & Applied Microbiology
Ga-Hee Ban, Jae-Ik Lee, Dong-Hyun Kang
Summary: This study investigates the microbiota in raw milk and the impact of storage temperature on microbiota shift after biofilm formation. The findings suggest that temperature critically affects the bacterial composition of both raw milk and its associated biofilm.
Article
Materials Science, Coatings & Films
Cecilie Funch, Kinga Somlo, Thomas L. Christiansen, Marcel A. J. Somers
Summary: This study investigated the effects of different thermochemical post-processing treatments on additively manufactured austenitic stainless steel. It was found that austenitization in vacuum caused a reduction in nitrogen content near the surface, which could be remedied by adding nitrogen gas during the process. High temperature solution nitriding effectively increased surface hardness while maintaining a fine structure inside the grains. The as-built condition exhibited an excellent combination of strength and ductility, but had a low degree of work-hardening. The vertically built condition showed lower strength and earlier yielding compared to the horizontally built conditions. High temperature treatments efficiently reduced the mechanical anisotropy observed in the as-built condition. A combination of high- and low-temperature surface hardening methods, including nitriding, carburizing, and nitrocarburizing, resulted in the development of expanded austenite on the surface and a significant increase in hardness.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Environmental Sciences
Katalin Hubai, Nora Kovats, Bettina Eck-Varanka, Gabor Teke
Summary: In indoor environments, cooking contributes to indoor air pollution by releasing potentially harmful compounds such as polycyclic aromatic hydrocarbons (PAHs). In this study, Chlorophytum comosum 'Variegata' plants were used to monitor PAH emission rates and patterns in rural Hungarian kitchens. The concentration and profile of accumulated PAHs were found to be influenced by the cooking methods and materials used in each kitchen. The only kitchen that frequently used deep frying showed characteristic accumulation of 6-ring PAHs. The suitability of C. comosum as an indoor biomonitor was also assessed, and it was found to effectively accumulate both low and high molecular weight PAHs.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Crystallography
Abdul Khaliq, Abdulaziz S. Alghamdi, Mohamed Ramadan, Tayyab Subhani, Wajdi Rajhi, Waseem Haider, Mohammad Mehedi Hasan
Summary: This study investigates the corrosion properties of stainless-steel rolls used in the continuous hot-dip galvanizing process. The results show that two distinct intermetallic compound (IMC) layers, AL-1 and AL-2, form between the stainless-steel substrate and the AZ alloy. The AL-1 layer grows in thickness while the AL-2 layer exhibits uneven growth. Crack development between the AL-1 and AL-2 layers, as well as the disintegration of the AL-2 layer into the AZ bath, are observed. The study also reveals a significant increase in hardness due to the presence of IMC layers.
Article
Materials Science, Multidisciplinary
J. B. Krolczyk, R. W. Maruda, G. M. Krolczyk, S. Wojciechowski, Munish Kumar Gupta, Mehmet Erdi Korkmaz
Summary: This study evaluates the surface tribological characteristics after machining difficult to cut stainless steel under dry and minimum quantity cooling lubrication conditions. The results show that minimum quantity cooling lubrication produces smooth surfaces with less irregularities, making it a viable option for sustainable manufacturing.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Jiajun Lu, Weidong Liu, Yonghua Zhao
Summary: This study investigates the influence of the processing method of bulk material on the surface microstructure of the resultant workpiece in electrochemical jet texturing (EJT). The experimental results reveal evident anisotropic behavior of the texture and demonstrate the considerable influence of the rolling process on EJT.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Digvijay Singh, Felipe Cemin, Mawin J. M. Jimenez, Vinicius Antunes, Fernando Alvarez, Dmytro Orlov, Carlos A. Figueroa, Santosh S. Hosmani
Summary: This study investigates the high-temperature oxidation behavior of nanostructure surface layered AISI 304L stainless steel. The results show that the surface mechanical attrition treatment (SMAT) process can lead to the formation of a stable and protective oxide scale with better adhesion and higher density.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Cyprian Illing, Zhe Ren, Frank Ernst
Summary: The surface engineering of chromium-oxide-passivated alloys requires surface activation by removing or perforating the passivating oxide film. In this study, a new approach using pyrolysis of a reagent powder for surface activation is demonstrated, and its microstructure is compared to an established activation method. The activated surface is found to contain a reaction layer with high concentrations of Cl, carbon, or nitrogen. A model for the microscopic mechanism of surface activation is proposed for further development of more effective process schemes.
Article
Materials Science, Multidisciplinary
Ji Ho Shin, Byeong Seo Kong, Chaewon Jeong, Hyun Joon Eom, Changheui Jang, Nouf AlMousa, Kevin B. Woller, Michael P. Short
Summary: The void swelling behavior of a newly developed austenitic stainless steel (ARES-6) with uniformly distributed nanosized NbC precipitates and commercial 316 stainless steel was evaluated using heavy ion irradiation. The results showed that ARES-6 exhibited nearly seven times less swelling compared to 316 stainless steel. The presence of NbC precipitates and high Ni content contributed to the improved swelling resistance of ARES-6, but the dissolution of nanosized NbC precipitates during irradiation could explain the discrepancy between estimated and observed swelling resistance of ARES-6.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Chemistry, Physical
Peijie Feng, Minhyeok Lee, Daoyuan Wang, Yuji Suzuki
Summary: The surface reactions of ammonia play a significant role in the reaction kinetics and thermal decomposition. The study found that thermal decomposition can occur on inert surfaces such as quartz, and the decomposition rate is even higher on stainless steel. The formation of iron nitride on stainless steel facilitates the thermal decomposition of ammonia.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Nejc Novak, Dan Kytyr, Vaclav Rada, Tomas Doktor, Oraib Al-Ketan, Reza Rowshan, Matej Vesenjak, Zoran Ren
Summary: The mechanical response of foam-filled tubes with diamond lattice cores under compressive loading was investigated. The in-situ and ex-situ TPMS-filled tubes showed superior performance compared to empty tubes. Energy absorption was enhanced by 12%-44% depending on the loading direction. The developed computational models were accurate and suitable for real-life applications such as crashes and impacts.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Biotechnology & Applied Microbiology
Annette Fagerlund, Lene Idland, Even Heir, Trond Moretro, Marina Aspholm, Torii Lindback, Solveig Langsrud
Summary: Listeria monocytogenes is a deadly foodborne pathogen that is widespread in the environment. Whole-genome sequencing (WGS) is used to show the persistence of L. monocytogenes in natural, urban, and dairy farm environments. Clusters of almost identical isolates can be collected from geographically and temporally unrelated sources, highlighting the importance of understanding the genetic relationships between clinical isolates and L. monocytogenes isolates from various environments. The study emphasizes the need for reliable tools for source tracking, surveillance, and risk assessment in managing L. monocytogenes.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Food Science & Technology
Octavian Augustin Mihalache, Trond Moretro, Daniela Borda, Loredana Dumitrascu, Corina Neagu, Christophe Nguyen-The, Isabelle Maitre, Pierrine Didier, Paula Teixeira, Luis Orlando Lopes Junqueira, Monica Truninger, Tekla Izso, Gyula Kasza, Silje Elisabeth Skuland, Solveig Langsrud, Anca Ioana Nicolau
Summary: Our paper highlights the significance of kitchen layout in influencing consumers' food hygiene practices, showing a correlation between sink placement and hygienic practices during food handling. The traditional kitchen work triangle may not necessarily support food hygiene practices, leading to the proposal of a new food safety triangle layout. This new layout aims to combine ergonomics with safety to mitigate the risks of foodborne illnesses.
Article
Biotechnology & Applied Microbiology
Trond Moretro, Vania B. Ferreira, Birgitte Moen, Valerie L. Almli, Paula Teixeira, Ida M. Kasbo, Solveig Langsrud
Summary: This study investigated the bacterial levels and diversity in used dish washing sponges and brushes, as well as the survival of Salmonella. It was found that brushes had lower bacterial levels and faster Salmonella death rate compared to sponges. A common set of non-pathogenic bacteria dominated in both brushes and sponges.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Annette Fagerlund, Eva Wagner, Trond Moretro, Even Heir, Birgitte Moen, Kathrin Rychli, Solveig Langsrud
Summary: This study investigates the diversity, distribution, persistence, and prevalence of stress survival and resistance genes in dominating Listeria monocytogenes clones in food processing environments in Norway. The findings reveal widespread transmission of highly similar strains in the Norwegian food system. These strains are associated with an increase in the prevalence of plasmids and determinants of heavy metal and biocide resistance, as well as other genetic elements related to stress survival mechanisms and persistence.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Food Science & Technology
Anlaug Adland Hansen, Solveig Langsrud, Mats Carlehog, John-Erik Haugen, Birgitte Moen
Summary: Optimizing packaging conditions to extend the shelf life of chicken fillets is essential for preventing spoilage and waste. This study found that CO2 gas inhibits bacterial growth and reduces the production of off-odors, resulting in improved quality and shelf life of the chicken fillets.
Article
Food Science & Technology
Trond Moretro, Valerie Lengard Almli, Anette Wold Asli, Charlotte Kummen, Martina Galler, Solveig Langsrud
Summary: Kitchen cloths play a role in maintaining cleanliness but can also lead to cross-contamination. A study in six European countries found that cotton and microfiber cloths were the most commonly used. Hanging cloths to dry and changing them regularly were common practices. Different types of cloths had varying water absorption and drying rates, with hanging cloths drying faster. Salmonella and Campylobacter showed reduction in numbers after hanging cloths to dry. Polypropylene and viscose cloths were the safest choice in terms of pathogen reduction. Knitted cotton cloths were the least safe. Microfiber cloths and cloths with antimicrobial compounds did not show significant differences. It is important for consumers to change cloths after meat spills and choose fast-drying cloths that can be hung to dry.
Article
Food Science & Technology
V. L. Almli, M. Galler, T. Moretro, S. Langsrud, M. O. Gaarder, O. Ueland
Summary: Food poisoning poses threats to health and economy globally, with an estimated 600 million cases annually. Risk behaviors in Norwegian cabin kitchens were assessed in relation to cabin infrastructure and compared with home practices. Information campaigns on reducing the risk of foodborne illness in cabin environments are necessary.
Article
Food Science & Technology
Eva Wagner, Annette Fagerlund, Sarah Thalguter, Merete Rusas Jensen, Even Heir, Trond Moretro, Birgitte Moen, Solveig Langsrud, Kathrin Rychli
Summary: Whole genome sequencing is widely used in the food industry for the genetic characterization and risk assessment of foodborne pathogens such as Listeria monocytogenes. Our study showed that predicting the virulence potential based on genetic virulence profiles provides valuable information for risk assessment, although the mere presence of virulence genes is not sufficient for virulence. Combining genotypic and phenotypic data is crucial for improving the informative value of applying whole genome sequencing in the food industry.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Birgitte Moen, Solveig Langsrud, Ingunn Berget, Tove Maugesten, Trond Moretro
Summary: We report the bacterial composition in cleaning utensils and surface samples from 74 households across five European countries. Despite variations in kitchen practices and standards, a core microbiota was identified in European residential kitchens. Taxa associated with potential pathogens and fecal indicators were low in abundance but widely distributed throughout the households.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Food Science & Technology
Solveig Langsrud, Nina Veflen, Rosalie Allison, Bob Crawford, Tekla Izso, Gyula Kasza, Donna Lecky, Anca Ioana Nicolau, Joachim Scholderer, Silje Elisabeth Skuland, Paula Teixeira
Summary: This article discusses how to update food safety messages based on new knowledge and challenges in food consumption patterns and natural and social sciences. The SafeConsume project uses a stepwise approach to develop and evaluate food safety messages by identifying risky behaviors based on the top pathogen-food combinations associated with foodborne diseases in Europe. Expert survey results indicate that the suggested food safety messages are more likely to be implemented and result in safer practices compared to corresponding WHO messages. Therefore, WHO should reconsider its preventive risk communication based on new knowledge and challenges.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2023)
