The aim of this study is to optimize the production of optically pure d (-) lactic acid (DLA) employing a cost-effective production medium. Based on the designed biomass approach, Sporolactobacillus inulinus NBRC 13595 was found to exhibit high DLA titer (19.0 g L ) and optical purity (99.6%). A cost-effective medium was constituted using Palmyra palm jaggery (PJ) from Borassus flabellifer and whey protein hydrolysate (WPH) as carbon and nitrogen sources, respectively. Plackett-Burman design indicated that PJ, WPH, and MnSO as significant variables influence DLA production. A rotatable central composite design and response surface methodology were used to optimize the PJ and WPH concentrations. A maximum DLA titer (170.14 g L ) was predicted for 222.24 g L of PJ and 11.99 g L of WPH, respectively. Fermentation experimental results exhibited a maximum DLA titer (189.0 ± 8.53 g L ) and productivity (5.25 ± 0.24 g L H ), which is the highest ever reported for DLA production from a renewable feedstock in the batch process. The present investigation substantiates that the potential application of economically viable raw feedstocks (PJ and WPH) for enhanced DLA production, which is attributed to 2.5-fold reduction in DLA production cost compared with conventional medium.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/bab.1470 | DOI Listing |
Cancer Res
January 2025
Medical Department of Hematology, Oncology and Tumor Immunology, Molekulares Krebsforschungszentrum - MKFZ, Campus Virchow Klinikum, Charité - Universitätsmedizin, Berlin, Germany.
Therapy-exposed surviving cancer cells may have encountered profound epigenetic remodeling that renders these drug-tolerant persisters candidate drivers of particularly aggressive relapses. Typically presenting as slow-to-nongrowing cells, persisters are senescent or senescence-like cells. In this issue of Cancer Research, Ramponi and colleagues study mTOR/PI3K inhibitor-induced embryonic diapause-like arrest (DLA) as a model of persistence in lung cancer and melanoma cells and compare this persister condition with therapy-induced senescence in the same cells.
View Article and Find Full Text PDFTob Control
December 2024
School of Public Health, Georgia State University, Atlanta, Georgia, USA.
Introduction: IQOS was sold in the US in 2019-2021 and will likely return in 2024. It is important to anticipate IQOS' market penetration; thus, this study examined US adults' prior awareness and perceptions, intentions to try and reactions to an IQOS reduced-risk exposure statement.
Methods: 61 adults from three US cities were recruited to represent four tobacco use subgroups: current cigarette and never electronic nicotine delivery systems (ENDS) use; current cigarette and discontinued ENDS use; current cigarette and ENDS use; and former cigarette use and switched to ENDS.
Aquat Toxicol
December 2024
College of Animal Science and Technology, Jilin Agriculture University, Changchun 130118, China; Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun 130118, China. Electronic address:
In this study, the alleviative effects of chlorogenic acid (CGA) on oxidative stress, inflammation and apoptosis of amur ide (Leuciscus waleckii) induced by lipopolysaccharide (LPS) were evaluated. Using a 2 × 2 factorial design, amur ide were irregularity divided into 4 groups and fed two diets with 0.00 % (CK and LPS), 0.
View Article and Find Full Text PDFFront Microbiol
December 2024
College of Life Science, Jilin Agricultural University, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Education Ministry of China, Changchun, Jilin, China.
Background: The production of D-lactic acid (D-LA) from non-detoxified corn stover hydrolysate is hindered by substrate-mediated inhibition and low cell utilization times. In this study, we developed a novel temperature-sensitive hydrogel, F127-IEA, for efficient D-LA production using a cell-recycle batch fermentation process.
Results: F127-IEA exhibited a porous structure with an average pore size of approximately 1 μm, facilitating the formation of stable clusters within the gel matrix.
Front Microbiol
November 2024
College of Animal Science and Technology, Yangtze University, Jingzhou, China.
Introduction: This study aimed to assess the protective efficacy of MF-06 as a potential alternative to antibiotics in mitigating intestinal mucosal damage in chicks infected with .
Methods: A total of 150 one-day-old SPF chicks were selected and randomly divided into five groups: control group (CK), probiotics group (EM), probiotics treatment group (PT), antibiotic treatment group (AT), group (SI), CK, AT and SI groups were fed a basal diet, EM and PT groups were fed a basal diet supplemented with 1.0 × 10 CFU/g ; PT, AT and SI groups were gavaged with 1.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!