The ether-vinegar method used for the precipitation of helminths' oocysts is distinct from the ether-formalin one in progressive technology and lower toxicity of the reagents used. It can be applied for the diagnosis of opisthorchiasis with low invasion intensity.
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J Oleo Sci
January 2025
College of Marine Biology, Xiamen Ocean Vocational College.
Based on the observation that urea, water, and ethyl esters (EE) can form gypsum-like mixtures, this study explored the feasibility of employing water as a solvent for urea in the urea complexation method to enrich n-3 polyunsaturated fatty acids with docosahexaenoic acid (DHA)-containing ethyl esters (DHA- EE) from Crypthecodinium cohnii as the material. Under the conditions of a urea/DHA-EE ratio of 3, a water/DHA-EE ratio of 0.75, a mixing temperature of 65℃, and a cooling temperature of 20℃, a concentrate containing over 90% DHA was achieved.
View Article and Find Full Text PDFJ Oleo Sci
January 2025
Faculty of Food and Agricultural Sciences, Fukushima University.
Sterols and triterpene alcohols exist in free and esterified forms in edible oils. To date, only few studies have determined the content of free or esterified sterols and triterpene alcohols using gas chromatography-flame ionization detection (GC-FID). In this study, analytical conditions were optimized using free and esterified sterol standards.
View Article and Find Full Text PDFFood Chem
January 2025
Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China. Electronic address:
The rising demand for plant-based meat analogues presents challenges in replicating the sensory qualities of animal meat. This study investigates the impact of Pichia-derived porcine myoglobin (PMb) and bovine hemoglobin (BHb) on the flavor profile, sensory attributes, macrostructure, color, and texture of high-moisture extruded soy protein concentrate-wheat gluten. The addition of PMb and BHb significantly altered the flavor profile by decreasing aldehyde content (hexanal and nonanal), while the contents of ketones (2,3-octanedione and 3,5-octadien-2-one), pyrazines (2-ethyl-6-methylpyrazine), and furans (2-pentylfuran) were increased.
View Article and Find Full Text PDFBraz J Microbiol
January 2025
Microbiology and Microbial Biotechnology Laboratory, Department of Botany and Forestry, Vidyasagar University, 721102, Midnapore, West Bengal, India.
Endophytic actinomycetes are potential sources of novel pharmaceutically active metabolites, significantly advancing natural product research. In the present investigation, secondary metabolites from two endophytic actinomycetes, Streptomyces parvulus GloL3, and Streptomyces lienomycini SK5, isolated from medicinal plant taxa, Globba marantina, and Selaginella kraussiana, exhibited broad-spectrum bioactivity. Ethyl Acetate (EA) extract of SK5 showed antimicrobial activity against nine human pathogens, including Methicillin-resistant Staphylococcus aureus (MRSA), Candida tropicalis, and C.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, China.
The broader use of botanical pesticides has been limited by shorter residual activity on plants, slower onset of action, and higher costs compared with conventional pesticides. These challenges could be overcome by the development of simple, cost-effective, and long-lasting preventive nanocomposites for botanical pesticides. In this study, we successfully developed a low-cost ethyl cellulose (EC)-based delivery system for the botanical pesticide osthole (OST), designed to provide extended preventive protection against infestations.
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