The impact of various biopolymers on low-sodium condiments composed of salt, potassium chloride, sodium glutamate and Maillard reaction products with chicken flavor were evaluated in order to generate uniformly distributed low-sodium condiments. The addition of biopolymers reduced the sodium and potassium content of low sodium condiments, as well as improved the particle size, changed the particle morphology. The addition of different biopolymers had different effects on the color, flow characteristics, solubility, hygroscopicity and thermal stability of low sodium condiments.
View Article and Find Full Text PDFBackground: Tuberculosis (TB) remains a global public health challenge. The existing Bacillus Calmette-Guérin vaccine has limited efficacy in preventing adult pulmonary TB, necessitating the development of new vaccines with improved protective effects.
Methods: Computer-aided design and artificial intelligence technologies, combined with bioinformatics and immunoinformatics approaches, were used to design a multi-epitope vaccine (MEV) against TB.
Mitochondrial DNA B Resour
June 2024
In this study, we assembled high-quality chloroplast genomes of through a reference-guided approach using high-throughput Illumina sequencing reads. The resulting chloroplast genome assembly displayed a typical quadripartite structural organization, comprising a large single-copy (LSC) region of 85,233 bp, two inverted repeat (IR) regions of 25,685 bp each, and a small single-copy (SSC) region of 18,207 bp. The chloroplast genome harbored 141 complete genes, and its overall GC content was 38.
View Article and Find Full Text PDFThis study introduces a meticulously constructed genome assembly at the chromosome level for the Rosaceae family species , a traditional Chinese medicinal herb. The final assembly encompasses 1272.71 megabases (Mb) distributed across 16 pseudochromosomes, boasting contig and super-scaffold N50 values of 2.
View Article and Find Full Text PDFLytic polysaccharide monooxygenases (LPMOs) can oxidatively break the glycosidic bonds of crystalline cellulose, providing more actionable sites for cellulase to facilitate the conversion of cellulose to cello-oligosaccharides, cellobiose and glucose. In this work, a bioinformatics analysis of LPMO10 revealed that it is a hydrophobic, stable and secreted protein. By optimizing the fermentation conditions, the highest protein secretion level was found at a IPTG concentration of 0.
View Article and Find Full Text PDFLytic polysaccharide monooxygenases (LPMOs) can oxidatively cleave the glycosidic bonds of crystalline polysaccharides, providing more accessible sites for polysaccharide hydrolases and promoting efficient conversion of biomass. In order to promote industrial applications of LPMOs, the stability of an LPMO of Myceliophthora thermophila C1 (MtC1LPMO) was improved by adding disulfide bonds in this study. Firstly, the structural changes of wild-type (WT) MtC1LPMO at different temperatures were explored using molecular dynamics simulations, and eight mutants were selected by combining the predicted results from Disulfide by Design (DBD), Multi agent stability prediction upon point mutations (Maestro) and Bridge disulfide (BridgeD) websites.
View Article and Find Full Text PDFBioresour Technol
October 2022
Lytic polysaccharide monooxygenases (LPMOs) can catalyze polysaccharides by oxidative cleavage of glycosidic bonds and have catalytic activity for cellulose, hemicellulose, chitin, starch and pectin, thus playing an important role in the biomass conversion of lignocellulose. The catalytic substrates of LPMOs are different and the specific catalytic mechanism has not been fully elucidated. Although there have been many studies related to LPMOs, few have actually been put into industrial biomass conversion, which poses a challenge for their expression, regulation and application.
View Article and Find Full Text PDFLytic polysaccharide monooxygenases (LPMOs) are copper-dependent enzymes, which can catalyze the oxidative cleavage of polysaccharide β-1,4 glycosidic bonds to improve the hydrolysis efficiency of the substrate by other glycoside hydrolases. To improve the conversion efficiency of cellulose and chitin, a strain was screened from the soil of Yuelu Mountain in Hunan province, China. The gene sequence of a novel AA10 LPMO (BaLPMO10) was successfully cloned from the genome of the strain and heterologously expressed in E.
View Article and Find Full Text PDFA high-throughput screening system was established by employing enhanced green fluorescent protein as a screenable fusion tag to evaluate the expression and secretion of a lytic polysaccharide monooxygenase (MtC1LPMO) using 20 Sec-type signal peptides (SPs) from Bacillus amyloliquefaciens 111018. Among these, 10 SPs were found to be better than the native SP of MtC1LPMO. The protein expression and secretion levels using SP12 (MNITNWAAILQLQSMALQSISNTGTASS) were the highest among all SPs, with 4.
View Article and Find Full Text PDFTo enhance the biomass conversion efficiency, the R17L mutant of the lytic polysaccharide monooxygenase (LPMO) MtC1LPMO with improved catalytic efficiency was constructed via rational point mutation based on the HotSpot Wizard 3.0 and dezyme web servers. Compared with the wild-type (WT) MtC1LPMO, R17L exhibited a 1.
View Article and Find Full Text PDFThe use of fuel cells is one of the most promising renewable energy strategies, but they still suffer from many limitations. The high mass enthalpy of hydrogen as a fuel comes at the cost of inconveniences and risks associated with storage, transportation and utilization, while the high performance of Pt catalysts in commercial fuel cells is limited by their high cost, low earth abundance, and poor stability as a result of CO intermediate poisoning. To circumvent these dilemmas, direct methanol fuel cells (DMFCs) were developed, using methanol as a fuel and Ni as the anode catalyst.
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