Publications by authors named "Lan-Lan Zhu"
Article Synopsis
- This study explores the fermentation characteristics of Bacillus velezensis D6, focusing on the co-production of two enzymes, α-amylase and protease, and their potential applications in fermentation processes.
- The research found optimal production conditions, achieving high enzyme activity levels, and demonstrated that both enzymes are thermally stable and effective over a range of pH levels.
- The α-amylase showed significant hydrolysis efficiency on various starchy substrates, while the protease effectively hydrolyzed animal-based proteins, indicating their practical applications in food processing.
Article Synopsis
- This study analyzed 10 types of functional vinegars, identifying various bioactive compounds including flavonoids, phenolics, and saponins, which contribute to their health benefits.
- Significant variations in antioxidant activities and concentrations of polysaccharides and organic acids were observed, with some compounds like tartaric and chlorogenic acids showing a positive correlation with antioxidant capacity.
- New physiologically active ingredients were discovered in the functional vinegars, and specific volatile compounds were linked to their antioxidant effectiveness, highlighting the diversity of beneficial substances in these traditional products.
ZnTiO/g-CN (0, 1, 3 and 8 wt%) composites were prepared via a simple solvothermal method, and their physical and electrochemical properties were systematically analyzed. SEM and HRTEM results show that the ZnTiO/g-CN spherical structures with width sizes of about 500-700 nm are plump and uniform. Moreover, g-CN with a large specific surface area can effectively buffer the deformation of ZnTiO and reduce the resistance of ZnTiO charge transfer and Li diffusion, thus improving the conductivity of ZnTiO.
View Article and Find Full Text PDFBackground: Plasmids play an vital role in driving the rapid global spread of antimicrobial resistance and adaptation to changing ambient conditions. It has been suggested that the presence of plasmids can pose tremendous impacts on the host physiology. However, little is known regarding the contributions of carbapenemase-encoding plasmid carriage on the physiology and pathogenicity of hypervirulent K.
View Article and Find Full Text PDF[Effects of Wnt3a on proliferation, activation and the expression of TGFb/Smad in rat hepatic stellate cells].
Zhonghua Gan Zang Bing Za Zhi
February 2013
Objective: To observe the effects of Wnt3a on proliferation and, activation of hepatic stellate cells (HSCs) and their the expression of the transforming growth factor beta (TGFb) and /Smad signaling factors of rat hepatic stellate cells line in vitro using a rat HSC line.
Methods: Synchronized HSC-T6 cells were stimulated with various concentrations of recombinant Wnt3a (50, 100, 200, 250 and 300 ng/mL). Unstimulated cells served as controls.
[Expression of P27(Kip1) and its clinical significance in acute and chronic leukemia].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
June 2004
To evaluate the expression of cyclin dependent kinase inhibitor P27(Kip1) in leukemia and to investigate its clinical significance, the P27(Kip1) protein in bone marrow or peripheral blood samples from 82 cases of leukemia was measured by Western blot and enhanced chemoluminescence (ECL). The results showed that the expression of P27(Kip1) protein in ALL was higher than that in ANLL (P = 0.033) and also that in CML (P = 0.
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