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Response mechanism of ethanol-tolerant Saccharomyces cerevisiae strain ES-42 to increased ethanol during continuous ethanol fermentation.
Microb Cell Fact
January 2025
College of Architecture and Environment, Sichuan University, Chengdu, 610065, Sichuan, China.
Background: Continuous fermentation offers advantages in improving production efficiency and reducing costs, making it highly competitive for industrial ethanol production. A key requirement for Saccharomyces cerevisiae strains used in this process is their tolerance to high ethanol concentrations, which enables them to adapt to continuous fermentation conditions. To explore how yeast cells respond to varying levels of ethanol stress during fermentation, a two-month continuous fermentation was conducted.
View Article and Find Full Text PDFEffect on viability and yield on Pleurotus pulmonarius and Ganoderma lucidum after 3 years of cryopreservation without cryoprotectants.
Cryobiology
January 2025
Instituto Tecnológico de Chascomús (INTECH). Escuela de Bio y Nanotecnología (UNSAM). Laboratorio de Micología y Cultivo de Hongos Comestibles; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología, Instituto de Microbiología Básica y Aplicada, Laboratorio de Micología Molecular.
Due to their importance in various fields such biotechnology, medicine, food science, preserving microorganisms effectively is essential. This study investigated cryopreservation of the edible fungus Pleurotus pulmonarius and the medicinal mushroom Ganoderma lucidum, for three years at -80°C in sorghum grains without cryoprotectants. We compared viability, growth, and yields with strains maintained on agar media at 5°C.
View Article and Find Full Text PDFDoes Normothermic Machine Perfusion Still Provide an Advantage for Deceased Donor Kidney Transplantation? A Systematic Review and Preliminary Meta-Analysis.
Artif Organs
January 2025
Department of Surgery, Albany Medical College, Albany, New York, USA.
Background: Patients with end-stage renal disease often face prolonged waiting times for kidney transplants. Historically, the use of marginal kidneys was limited due to suboptimal preservation methods. Normothermic machine perfusion (NMP) preserves physiological activity during the preservation process, potentially improving graft function and viability, expanding the use of marginal kidneys.
View Article and Find Full Text PDFCryopreserved Umbilical Cord Mesenchymal Stem Cells Show Comparable Effects to Un-Cryopreserved Cells in Treating Osteoarthritis.
Cell Transplant
January 2025
School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.
Non-cryo and hypothermic preservations are two available options for short-term storage of living cells. For long-term cell storage, cryopreservation is an essential procedure as it prolongs the storage time, allowing for the transport and testing of cells, as well as the establishment of cell banks. But it is unclear whether cryopreservation reduces the therapeutic effects of human umbilical cord mesenchymal stem cells (hucMSCs) on osteoarthritis (OA).
View Article and Find Full Text PDFThe effect of single versus group culture on cumulus-oocyte complexes from early antral follicles.
J Assist Reprod Genet
January 2025
Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy.
Purpose: This study aimed to evaluate the effectiveness of single versus group culture strategies for cumulus-oocyte complexes (COCs) derived from early antral follicles (EAFs), with the goal of optimizing culture conditions to increase oocyte availability for assisted reproductive technologies.
Methods: COCs isolated from EAFs (350-450 µm) from sheep ovaries were cultured in TCM199 medium supplemented with 0.15 µg/mL Zn as zinc sulfate, 10 IU/mL FSH, 10 ng/mL estradiol, 50 ng/mL testosterone, 50 ng/mL progesterone, and 5 µM Cilostamide.
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