This study focused on optimizing the extraction of polysaccharides (POPs) using plasma-activated water (PAW). A single factor and response surface methodology were employed to optimize and evaluate the polysaccharide yield, physiochemical characteristics, and biological activities of POPs. The observed findings were compared to those obtained by the conventional hot water extraction method (100 °C, 3 h), as the control treatment. The optimal extraction conditions were obtained at 700 W PAW power, 58 s treatment time, 1:19 sample-to-water ratio, and 15 L/min gas flow rate. In these conditions, the PAW-treated samples experienced changes in surface morphology due to plasma etching, leading to a 288% increase in the polysaccharide yield (11.67%) compared to the control sample (3.01%). Furthermore, the PAW-treated sample exhibited superior performance in terms of biological activities, namely phenolic compounds (53.79 mg GAE/100 g), DPPH scavenging activity (72.77%), and OH scavenging activity (65.03%), which were 29%, 18%, and 38% higher than those of control sample, respectively. The results highlighted the importance of process optimization and provided new evidence for PAW as an alternative approach to enhance the extraction efficiency of POPs, a novel source of natural antioxidants which enables diverse applications in the food industry.
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http://dx.doi.org/10.3390/foods12234347 | DOI Listing |
Environ Sci Pollut Res Int
December 2024
Department of Environmental Sciences and Technology, Central University of Punjab, Bathinda, 151001, Punjab, India.
In this study, water extract from Indian rosewood tree leaves was used to synthesize copper oxide nanoparticles (CuO NPs), further loaded on graphene oxide sheets to synthesize a novel nanocomposite (CuO@GO@IR). The maximum tetracycline removal was achieved at optimum conditions of pH 3, adsorbent dose 0.03g/50 mL, and 240 min contact time.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Europa Plaza 1, 20018 Donostia-San Sebastián, Spain; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Proteinmat Materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastián, Spain. Electronic address:
With the urge to reduce the use of petroleum-based materials, the aim of this work is to valorize biowaste to develop smart films through a sustainable fabrication way. In this regard, choline chloride/urea (1:2) deep eutectic solvent (DES) at different concentrations (25, 40, 50 and 75 wt%) was used to dissolve cow horn, used as reinforcement agent in soy protein films. The film fabrication was carried out by compression molding, a fast and cost-effective.
View Article and Find Full Text PDFMar Pollut Bull
December 2024
Danish Offshore Technology Centre (DTU), - Elektrovej 375, 2800 Kgs. Lyngby, Denmark.
The offshore oilfields in the North Sea area are increasingly employed for projects beyond oil production, like carbon capture and storage (CCS). Still, the fossil fuel production from mature fields is significant. It has raised environmental concerns associated with discharging produced waters (PW) and drilling mud into the sea.
View Article and Find Full Text PDFChemosphere
December 2024
Institute of Laboratory Research on Geomaterials, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia. Electronic address:
The properties of soil colloids determine the interaction with nanoparticles, their behavior, and destiny in the soil environment including soil solutions. This study examines how several properties of soil colloids, including pH, phosphorus content, clay minerals, and iron oxyhydroxides, influence the interaction with zinc oxide nanoparticles (ZnO-nps). For the experimental setup, four different soils were selected from the temperate climate of central Europe, in Slovakia, exhibiting pH values ranging from 4.
View Article and Find Full Text PDFJ Ethnopharmacol
December 2024
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences; NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance. Electronic address:
Ethnopharmacological Relevance: Myristica fragrans (Nutmeg) is a commonly used Chinese herbal medicine and edible spice. According to Pharmacopoeia of People's Republic of China, it has the effects of warming the middle and promoting qi, astringent intestines, and antidiarrheal. In the record of Compendium of Materia Medica, it is the myristica fragrans water extract (MFWE) that is utilized for therapeutic purposes of gastrointestinal disorders frequently.
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