The traditional CaCO3-based fermentation process generates huge amount of insoluble CaSO4 waste. To solve this problem, we have developed an efficient and green D-lactic acid fermentation process by using ammonia as neutralizer. The 106.7 g/L of D-lactic acid production and 0.89 g per g of consumed sugar were obtained by Sporolactobacillus inulinus CASD with a high optical purity of 99.7% by adding 100 mg/L betaine in the simple batch fermentation process. The addition of betaine was experimentally proven to protect cell at high concentration of ammonium ion, increase the D-lactate dehydrogenase specific activity and thus promote the production of D-lactic acid.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.5604/01.3001.0010.7880 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Extracellular vesicles of PCM 2675 and PCM 489: an introductory characteristic.
Extracell Vesicles Circ Nucl Acids
November 2024
Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków 30-387, Poland.
Extracellular vesicles (EVs) are involved in intercellular and interkingdom communication in the complex communities that constitute the niche-specific microbiome of the colonized host. Therefore, studying the structure and content of EVs produced by resident bacteria is crucial to understanding their functionality and impact on the host and other microorganisms. Bacterial EVs were isolated by differential centrifugation, their size and concentration were measured by transmission electron microscopy and nanoparticle tracking analysis, and the cargo proteins were identified by liquid chromatography coupled to tandem mass spectrometry.
View Article and Find Full Text PDFProbiotics fermentation enhanced the bioactive properties of water extract and improved regulation ability of gut microbiota.
Food Chem X
January 2025
Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, PR China.
This study investigated the probiotic potential of fermented beverages derived from (). Three different beverages were prepared by fermenting water extract with A6-3 ( A6-3), A27-1 ( A27-1), or both for 48 h. The results demonstrated that bioactive compounds from promoted the growth of these two probiotics and preserved their viability for at least 28 days at 4 °C.
View Article and Find Full Text PDFIsolation and Characterization of Lactic Acid Bacteria From "" Having the Ability to Produce α-Glucosidase Inhibitors.
Int J Microbiol
January 2025
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Riau, Pekanbaru, Riau 28293, Indonesia.
Alpha-glucosidase inhibitors are one of the therapies used for treating type 2 diabetes by inhibiting the absorption of carbohydrates in the gastrointestinal tract. In addition to antimicrobial activity, some probiotic species show -glucosidase inhibitor activity, making them potential alternative therapies for type 2 diabetes. This study aimed to characterize probiotics from "," a traditional food from North Sumatra, Indonesia, that exhibit -glucosidase inhibition, potentially useful for type 2 diabetes treatment.
View Article and Find Full Text PDFLactate accumulation promotes immunosuppression and fibrotic transformation of bone marrow microenvironment in myelofibrosis.
J Transl Med
January 2025
Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Catania, Italy.
Background: Clonal myeloproliferation and fibrotic transformation of the bone marrow (BM) are the pathogenetic events most commonly occurring in myelofibrosis (MF). There is great evidence indicating that tumor microenvironment is characterized by high lactate levels, acting not only as an energetic source, but also as a signaling molecule.
Methods: To test the involvement of lactate in MF milieu transformation, we measured its levels in MF patients' sera, eventually finding a massive accumulation of this metabolite, which we showed to promote the expansion of immunosuppressive subsets.
Inhibition of Melanin Synthesis and Inflammation by Exosomes Derived from DB-14 Isolated from Flower.
J Microbiol Biotechnol
January 2025
Department of Pharmaceutical Engineering & Biotechnology, Sunmoon University, Chungnam 31460, Republic of Korea.
is a lactic acid bacteria found in fermented products. In our previous study, was isolated from flowers, and its acid tolerance and antibacterial properties were thoroughly investigated. This study focuses on the inhibition of melanin synthesis and inflammation of exosomes derived from .
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!