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The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 454-464 doi: 10.1007/s11705-014-1456-4

Abstract: The biosorption potential of many different kinds of biomaterials has been widely studied. However, there is little data on the biosorption mechanism of Cr(VI) by dried biomass. So the bio-removal of Cr(VI) ions from aqueous solutions was investigated using dried biomass from a chromium-resistant bacterium. The bacterium was isolated from dewatered sludge samples that were obtained from a sewage treatment plant. Equilibrium and kinetic experiments were performed at different metal concentrations, pH values, and biosorbents dosages. The biomass was characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The functional groups in the biomass which may play a role in the biosorption process were identified by Fourier transform infrared spectroscopy. The biosorption process was found to be highly pH dependent and the optimum pH for the adsorption of Cr(VI) was 2.0±0.3 at 30±2 °C. The experimental data fit well with Langmuir and Freundlich models as well as a pseudo-second order kinetic model. The mechanism for the biosorption was also studied by fitting the kinetic data with an intra-particle diffusion model and a Boyd plot. External mass transfer was found to be the rate-determining step for the adsorption process. Biosorption could be an alternative mechanism besides bio-oxidation and bio-reduction for the bioremediation of heavy metals.

Keywords： Cr(VI)     biomass     Bacillus cereus Pf-1     biosorption capacity     biosorbents    

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Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 793-801 doi: 10.1007/s11705-019-1876-2

Abstract: Strain QCG of the aerobic bacteria is capable of producing 1-naphthol from naphthalene, this strainStrain QCG was mutagenized to enhance 1-naphthol production, using atmospheric and room temperature plasmaThe optimal mutant strain QCG4 produced 19.58±0.34 mg∙L 1-naphthol from naphthalene that was 47.32%In addition, the optimal conditions for 1-naphthol production via whole-cell catalysis of strain QCG4and 7.5% dimethyl formamide as a co-solvent at pH 7.5 and 26°C for 3 h, resulting in 41.18±0.12 mg∙L 1-

Keywords： Bacillus cereus QCG     naphthalene     1-naphthol     ARTP mutagenesis     high-throughput screening     4-aminoantipyrine    

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Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1609-0

Abstract:

● Improved Cr phytoextration efficiency was achieved by B. cereus

Keywords： Hexavalent chromium     Hyperaccumulator     Rhizobacteria     Leersia hexandra Swartz     Bacillus cereus    

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A meta-analysis of randomized trials of maintenance bacillus Calmette-Guerin instillation efficacy againstrecurrence of T1G3 bladder tumor

PAN Jiangang, ZHOU Xing, CHEN Zhiguang, HAN Ruifa

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 259-263 doi: 10.1007/s11684-008-0049-3

Abstract: Meta-analysis was used to determine whether maintenance intravesical bacillus Calmette-Guerin (BCG) couldreduce recurrence after transurethral resection of tumor 1 grade 3 (T1G3) superficial bladder cancerresection plus another treatment on the treatment results in patients with superficial bladder cancer of T1G3resection of bladder tumor (TURBT) is an effective conservative treatment for preventing recurrence of T1G3
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Synthesis of ［RMIm］PF6（R=P, B, C6）ionic liquid under microwave irradiation and research of its conductivity

He Yongfu

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 92-95

Abstract: Butyl-3-methylimidazolium bromize([BMIm]Br), 1-propyl-3-methylimidazolium bromize([PMIm]Br), 1-hexyl-3-methylimidazolium bromize ([C6MIm]Br) were synthesized from 1-methylimidazole and organic halide (1-bromopropane,1-bromobutane,1-bromohexane) separately under reflux heating at 80 ℃.butyl-3-methyl-imidazolium hexafluorophosphate([BMIm]PF6) and 1-propyl-3-methyl-imidazolium hexafluorophosphate([PMIm]PF6),1-Hexane-3-methyl-imidazolium hexafluorophosphate([C6MIm]PF6).

Keywords： ionic liquids     microwave irradiation     conductivity     [BMIm]PF6     [PMIm]PF6     [C6MIm]PF6    

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Combined gemcitabine and CHK1 inhibitor treatment induces apoptosis resistance in cancer stem cell-like

Douglas D. Fang, Joan Cao, Jitesh P. Jani, Konstantinos Tsaparikos, Alessandra Blasina, Jill Kornmann, Maruja E. Lira, Jianying Wang, Zuzana Jirout, Justin Bingham, Zhou Zhu, Yin Gu, Gerrit Los, Zdenek Hostomsky, Todd VanArsdale

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 462-476 doi: 10.1007/s11684-013-0270-6

Abstract: Treating these CSC-like cells with gemcitabine alone and a combination of gemcitabine and the novel CHK1inhibitor PF-00477736 revealed that PF-00477736 enhances the anti-proliferative effect of gemcitabine

Keywords： drug resistance     cancer stem cell     checkpoint kinase 1 (CHK1)     PF-00477736     lung cancer     tumorigenicity    

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Can intravesical bacillus Calmette-Guérin reduce recurrence in patients with non-muscle invasive bladder

Jiangang Pan,Mo Liu,Xing Zhou

Frontiers of Medicine 2014, Volume 8, Issue 2,   Pages 241-249 doi: 10.1007/s11684-014-0328-0

Abstract: Bacillus Calmette-Guérin (BCG) instillation and maintenance is considered as the standard adjuvant

Keywords： non-muscle invasive bladder cancer     bacillus Calmette-Guérin (BCG)     meta-analysis    

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Characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectant

ZHANG Wanming, YUAN Yuesha, BIAN Cangli, TU Xianyu, ZHANG Wen, HUANG Huqiang, WANG Lan

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 113-116 doi: 10.1007/s11684-008-0021-2

Abstract: The clinical characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectants wereTheir total number was more than 800 cfu/mL and they were identified as Bacillus amyloliquefacien.It was suggested that alcohol disinfectant fluid was easily contaminated by Bacillus amyloliquefacien
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Testing of tuberculosis infection among Chinese adolescents born after terminating the Bacillus Calmette

Hengjing Li, Henan Xin, Shukun Qian, Xiangwei Li, Haoran Zhang, Mufei Li, Boxuan Feng, Qi Jin, Lei Gao

Frontiers of Medicine 2017, Volume 11, Issue 4,   Pages 528-535 doi: 10.1007/s11684-017-0573-0

Abstract:

The prevalence of tuberculosis infection among adolescents born after terminating the Bacillus Calmette

Keywords： tuberculin skin test     interferon-γ release assays     adolescent     agreement    

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Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 381-385 doi: 10.1007/s11705-015-1534-2

Abstract: Dry yeast cells (DYC) were used as a cheap nitrogen source to replace expensive yeast extract (YE) for L-lactic acid production by thermophilic . Cassava starch (200 g·L ) was converted to L-lactic acid by simultaneous saccharification and fermentation using WCP10-4 at 50 °C in the presence of 20 g·L of DYC, giving 148.1 g·L of L-lactic acid at 27 h with a productivity of 5.5 g·L ·h and a yield of 92%. In contrast, 154.4 g·L of lactic acid was produced at 24 h with a productivity of 6.4 g·L ·h and a yield of 96% when equal amount of YE was used under the same conditions. Use of pre-autolyzed DYC at 50 °C for overnight slightly improved the lactic acid titer (154.5 g·L ) and productivity (7.7 g·L ·h ) but gave the same yield (96%).

Keywords： L-lactic acid     thermophilic strain     Bacillus coagulans     dry yeast cells     autolysis     fermentation    

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A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 410-418 doi: 10.1007/s11708-016-0440-8

Abstract: test system is integrated and the performance of the system is verified by calculating the power flow (PFThe PF and load flow results are used to calculate line indices for the IEEE-14 bus test system which

Keywords： voltage stability     line indices     power system analysis tool box (PSAT)     wind system     line loading     power flow (PF    

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Physicochemical Properties and Bioactivities of Rice Beans Fermented by Bacillus amyloliquefaciens Article

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Engineering 2021, Volume 7, Issue 2,   Pages 219-225 doi: 10.1016/j.eng.2020.10.010

Abstract: physicochemical properties and bioactivities of rice beans (Vigna umbellata) fermented by Bacillusfermentation conditions, the fibrinolytic activity reached a maximum of 78.0 FU·g−1 (4890 IU·g−1, fibrin plate method FU: fibrin degradation unit).per 100 g), as well as the superoxide dismutase activity (from 55.3 to 263.6 U·g−1Bacillus amyloliquefaciens may serve as a functional food with potential

Keywords： Solid-state fermentation     Rice beans     Bacillus amyloliquefaciens     Antithrombotic activity     Antioxidant    

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Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1050-y

Abstract:

Bacillus coagulans improved TCOD removal

The optimal inoculum concentration of Bacilluscoagulans AFB-1 was 30%.

Keywords： Anaerobic digestion     Waste activated sludge     Acid-producing bacteria     Bacillus coagulans    

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Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 515-525 doi: 10.1007/s11709-018-0494-2

Abstract: In other samples, cultured with a concentration of 1×10 cells/mL was mixed with concrete, to study

Keywords： calcium lactate     bacillus subtilis     compressive strength     self-healing of cracks    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric and room temperature plasma mutagenesis

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1751-1760 doi: 10.1007/s11705-022-2211-x

Abstract: Atmospheric and room temperature plasma was applied in this study to conduct mutation breeding of BacillusThe maximum poly-γ-glutamic acid yield of 14.08 g·L–1 was finally reached with 30 g·L–1 glutamate.

Keywords： ARTP mutagenesis     Bacillus licheniformis     poly-γ-glutamic acid     metabolomics    

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Title Author Date Type Operation

The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Journal Article

Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Journal Article

Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

Journal Article

A meta-analysis of randomized trials of maintenance bacillus Calmette-Guerin instillation efficacy againstrecurrence of T1G3 bladder tumor

PAN Jiangang, ZHOU Xing, CHEN Zhiguang, HAN Ruifa

Journal Article

Synthesis of ［RMIm］PF6（R=P, B, C6）ionic liquid under microwave irradiation and research of its conductivity

He Yongfu

Journal Article

Combined gemcitabine and CHK1 inhibitor treatment induces apoptosis resistance in cancer stem cell-like

Douglas D. Fang, Joan Cao, Jitesh P. Jani, Konstantinos Tsaparikos, Alessandra Blasina, Jill Kornmann, Maruja E. Lira, Jianying Wang, Zuzana Jirout, Justin Bingham, Zhou Zhu, Yin Gu, Gerrit Los, Zdenek Hostomsky, Todd VanArsdale

Journal Article

Can intravesical bacillus Calmette-Guérin reduce recurrence in patients with non-muscle invasive bladder

Jiangang Pan,Mo Liu,Xing Zhou

Journal Article

Characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectant

ZHANG Wanming, YUAN Yuesha, BIAN Cangli, TU Xianyu, ZHANG Wen, HUANG Huqiang, WANG Lan

Journal Article

Testing of tuberculosis infection among Chinese adolescents born after terminating the Bacillus Calmette

Hengjing Li, Henan Xin, Shukun Qian, Xiangwei Li, Haoran Zhang, Mufei Li, Boxuan Feng, Qi Jin, Lei Gao

Journal Article

Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

Journal Article

A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Journal Article

Physicochemical Properties and Bioactivities of Rice Beans Fermented by Bacillus amyloliquefaciens

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Journal Article

Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Journal Article

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric and room temperature plasma mutagenesis

Journal Article