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Human health risk assessment framework for new water resource recovery-based bio-composite materials
J Water Health. 2024 Apr;22(4):652-672. doi: 10.2166/wh.2024.168. Epub 2024 Feb 22.ABSTRACTA new type of bio-composite material is being produced from water-recovered resources such as cellulose fibres from wastewater, calcite from the drinking water softening process, and grass and reed from waterboard sites. These raw materials may be contaminated with pathogens and chemicals such as Escherichia coli, heavy metals, and resin compounds. A novel risk assessment framework is proposed here, addressing human health risks during the production of new bio-composite materials. The developed framework consists of a combination of...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Arianna Nativio Oriana Jovanovic Zoran Kapelan Jan Peter van der Hoek Source Type: research

Insights into the antibacterial effectiveness of linalool against Shigella flexneri on pork surface: Changes in bacterial growth and pork quality
This study aimed to examine the effectiveness of linalool (a natural preservative) against S. flexneri and explore its potential application in contaminated pork. The results showed that linalool was capable of damaging the cell membrane and binding to the DNA of S. flexneri, and inhibiting biofilm formation and disrupting mature biofilms. The antibacterial effectiveness of linalool on the surface of pork was further demonstrated by analyzing the physicochemical properties of the pork (i.e., weight loss rate, pH value, color index, and TVB-N value) and its protein profiles. Linalool did not completely kill S. flexneri in p...
Source: International Journal of Food Microbiology - April 28, 2024 Category: Food Science Authors: Xueying Song Jiamu Kang Xingyan Wei Liu Liu Yongfeng Liu Feng Wang Source Type: research

IJERPH, Vol. 21, Pages 560: Utilization of Whey for Eco-Friendly Bio-Preservation of Mexican-Style Fresh Cheeses: Antimicrobial Activity of Lactobacillus casei 21/1 Cell-Free Supernatants (CFS)
This study highlights the potential of CFS from Lb. casei 21/1 in the WB medium as an ecological bio-preservative for Mexican-style fresh cheese, aligning with the objectives of sustainable food production and guaranteeing food safety. (Source: International Journal of Environmental Research and Public Health)
Source: International Journal of Environmental Research and Public Health - April 28, 2024 Category: Environmental Health Authors: Victor E. Vera-Santander Ricardo H. Hern ández-Figueroa Daniela Arrioja-Bret ón Mar ía T. Jiménez-Munguía Emma Mani-L ópez Aurelio L ópez-Malo Tags: Article Source Type: research

Ferrous sulfate combined with ultrasound emulsified cinnamaldehyde nanoemulsion to cause ferroptosis in Escherichia coli O157:H7
Ultrason Sonochem. 2024 Apr 20;106:106884. doi: 10.1016/j.ultsonch.2024.106884. Online ahead of print.ABSTRACTThe purpose of this study was to investigate ferroptosis in Escherichia coli O157:H7 caused by ferrous sulfate (FeSO4) and to examine the synergistic effectiveness of FeSO4 combined with ultrasound-emulsified cinnamaldehyde nanoemulsion (CALNO) on inactivation of E. coli O157:H7 in vitro and in vivo. The results showed that FeSO4 could cause ferroptosis in E. coli O157:H7 via generating reactive oxygen species (ROS) and exacerbating lipid peroxidation. In addition, the results indicated that FeSO4 combined with CAL...
Source: Ultrasonics Sonochemistry - April 27, 2024 Category: Chemistry Authors: Jinyue Sun Qian-Jun Shen Jia-Neng Pan Xiaodong Zheng Ting Yu Wen-Wen Zhou Source Type: research

Optimization of lignin precipitation from black liquor using organic acids and its valorization by preparing lignin nanoparticles
Int J Biol Macromol. 2024 Apr 25:131881. doi: 10.1016/j.ijbiomac.2024.131881. Online ahead of print.ABSTRACTThis work focuses on the precipitation of lignin from kraft black liquor (BL) along with its valorization into lignin nanoparticles (LNP). Two organic acids namely, acetic acid, and lactic acid were used for the precipitation of lignin as an alternative to sulfuric acid. An optimization study was carried out to determine the effect of three key variables, namely acid type, temperature, and pH, on the isolation yield and purity of lignin. The study showed that all factors primarily influenced the lignin yield, while t...
Source: International Journal of Biological Macromolecules - April 27, 2024 Category: Biochemistry Authors: Manorma Sharma Joana Marques Andr é Simões Maria Manuel Donato Olga Cardoso Lic ínio M Gando-Ferreira Source Type: research

Decellularized periosteum and sodium alginate-based photoresponsive dressing with copper selenide nanoparticles for infected-wound healing in diabetic mice
Int J Biol Macromol. 2024 Apr 25:131895. doi: 10.1016/j.ijbiomac.2024.131895. Online ahead of print.ABSTRACTDiabetes-related skin ulcers are of significant clinical concern. Although conventional dressings have been developed, their outcomes have not been adequate, indicating the need to investigate functional dressings for the treatment of diabetic ulcers. Copper selenide nanoparticles (Cu2Se NPs) demonstrate outstanding photoresponsiveness, which is critical to the healing process. However, their limited solubility in water restricts their application. To synthesize the ODT-PMMA@Cu2Se NP-doped decellularized periosteum�...
Source: International Journal of Biological Macromolecules - April 27, 2024 Category: Biochemistry Authors: Zhiwen Su Yan Chen Haifeng Liang Zhongxun Liu Deguang Wu Jian Li Hao Su Yiran Yan Zhi Huang Bo Yu Source Type: research

Ligand-Free Silver Nanoparticles: An Innovative Strategy against Viruses and Bacteria
Microorganisms. 2024 Apr 18;12(4):820. doi: 10.3390/microorganisms12040820.ABSTRACTThe spread of antibiotic-resistant bacteria and the rise of emerging and re-emerging viruses in recent years constitute significant public health problems. Therefore, it is necessary to develop new antimicrobial strategies to overcome these challenges. Herein, we describe an innovative method to synthesize ligand-free silver nanoparticles by Pulsed Laser Ablation in Liquid (PLAL-AgNPs). Thus produced, nanoparticles were characterized by total X-ray fluorescence, zeta potential analysis, transmission electron microscopy (TEM), and nanoparticl...
Source: Herpes - April 27, 2024 Category: Infectious Diseases Authors: Maria Vittoria Morone Annalisa Chianese Federica Dell'Annunziata Veronica Folliero Erwin Pavel Lamparelli Giovanna Della Porta Carla Zannella Anna De Filippis Gianluigi Franci Massimiliano Galdiero Antonio Morone Source Type: research

Antimicrobial Efficacy of a Vegetable Oil Plasticizer in PVC Matrices
Polymers (Basel). 2024 Apr 10;16(8):1046. doi: 10.3390/polym16081046.ABSTRACTThe growing prevalence of bacterial and viral infections, highlighted by the recent COVID-19 pandemic, urgently calls for new antimicrobial strategies. To this end, we have synthesized and characterized a novel fatty acid epoxy-ester plasticizer for polymers, named GDE. GDE is not only sustainable and user-friendly but also demonstrates superior plasticizing properties, while its epoxy components improve the heat stability of PVC-based matrices. A key feature of GDE is its ability to confer antimicrobial properties to surfaces. Indeed, upon contac...
Source: Herpes - April 27, 2024 Category: Infectious Diseases Authors: Greta Bajetto Sara Scutera Francesca Menotti Giuliana Banche Giuseppe Chiaradia Caterina Turesso Marco De Andrea Marta Vallino Daan S Van Es Matteo Biolatti Valentina Dell'Oste Tiziana Musso Source Type: research

The role of rcpA gene in regulating biofilm formation and virulence in Vibrio parahaemolyticus
In conclusion, rcpA plays a role in determining biofilm formation and virulence of V. parahaemolyticus and further research is necessitated to fully understand its function in V. parahaemolyticus.PMID:38677238 | DOI:10.1016/j.ijfoodmicro.2024.110714 (Source: International Journal of Food Microbiology)
Source: International Journal of Food Microbiology - April 27, 2024 Category: Food Science Authors: Wenxiu Zhu Jiaxiu Liu Yingying Zhang Dongyun Zhao Shugang Li Hanzheng Dou Haisong Wang Xiaodong Xia Source Type: research

Chip-based automated equipment for dual-mode point-of-care testing foodborne pathogens
Biosens Bioelectron. 2024 Apr 25;257:116338. doi: 10.1016/j.bios.2024.116338. Online ahead of print.ABSTRACTFoodborne pathogens have a substantial bearing on food safety and environmental health. The development of automated, portable and compact devices is essential for the on-site and rapid point-of-care testing (POCT) of bacteria. Here, this work developed a micro-automated microfluidic device for detecting bacteria, such as Escherichia coli (E. coli) O157:H7, using a seashell-like microfluidic chip (SMC) as an analysis and mixing platform. The automated device integrates a colorimetric/fluorescent system for the metabo...
Source: Biosensors and Bioelectronics - April 27, 2024 Category: Biotechnology Authors: Binfeng Yin Haoyu Zhu Shiyu Zeng A S M Muhtasim Fuad Sohan Xinhua Wan Jun Liu Pan Zhang Xiaodong Lin Source Type: research

Occurrence of parasites in waters used for crops irrigation and vegetables from the Savannah of Bogot á, Colombia
In this study, the presence of parasites in surface water used for irrigation of crops (n = 96) and vegetables (celery and lettuce) (n = 120), from the Former La Ramada irrigation district, was evaluated using conventional and molecular parasitological methods. Our findings showed contamination of irrigation systems in the study area with domestic wastewater, demonstrated by the presence of Ancylostomatidae eggs, Ascaris spp., Hymenolepis spp., Trichuris spp., Capillaria spp., Giardia spp. cysts, and oocysts of Toxoplasma gondii and Cryptosporidium spp. A prevalence of 33% and 23.3% was calculated for helminths and protozo...
Source: Environmental Science and Pollution Research International - April 27, 2024 Category: Environmental Health Authors: Daniel Eduardo Ospina Santos Yulieth Alexandra Upegui Zapata Catherine Aguilar Buitrago Geraldine S ánchez Herrera Libia Eunise Chandillo Becoche Myriam Consuelo L ópez Páez Martha Cristina Bustos L ópez Carolina Ortiz Pineda Source Type: research

Black soldier fly larvae mitigate greenhouse gas emissions from domestic biodegradable waste by recycling carbon and nitrogen and reconstructing microbial communities
Environ Sci Pollut Res Int. 2024 Apr 27. doi: 10.1007/s11356-024-33308-8. Online ahead of print.ABSTRACTBlack soldier fly larvae have been proven to reduce greenhouse gas emissions in the treatment of organic waste. However, the microbial mechanisms involved have not been fully understood. The current study mainly examined the dynamic changes of carbon and nitrogen, greenhouse gas emissions, the succession of microbial community structure, and changes in functional gene abundance in organic waste under larvae treatment and non-aeration composting. Thirty percent carbon and 55% nitrogen in the organic waste supplied were st...
Source: Environmental Science and Pollution Research International - April 27, 2024 Category: Environmental Health Authors: FangMing Xiang LuYing Han ShuoYun Jiang XinHua Xu ZhiJian Zhang Source Type: research