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High production of butyric acid by

Chao Ma,Jianfa Ou,Matthew Miller,Sarah McFann,Xiaoguang (Margaret) Liu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 369-375 doi: 10.1007/s11705-015-1525-3

Abstract: The objective of this study was to improve the production of butyric acid by process optimization usingacid production.It was found that the highest titer of butyric acid, 63.02 g/L, was achieved at pH 6.5.and butyric acid.This study demonstrated that high butyric acid production could be obtained by integrating metabolic

Keywords： Clostridium tyrobutyricum     butyric acid production     fermentation     mutant     pH     flux balance analysis    

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Continuous biohydrogen production from diluted molasses in an anaerobic contact reactor

Sheng CHANG, Jianzheng LI, Feng LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 140-148 doi: 10.1007/s11783-010-0258-2

Abstract: hydraulic retention time (HRT) from solids retention time (SRT) was developed for fermentative hydrogen productionAt the initial VLR of 20 kgCOD·m ·d , the hydrogen production rate dropped from 22.6 to 1.58 L·d asAs the VLR was increased to 44 kgCOD·m ·d , the hydrogen production rate and hydrogen yield increasedThe results showed that a stable ethanol-type fermentation that favored hydrogen production in the reactorfound that the ethanol increased more than other liquid fermentation products, and the ethanol/acetic acid

Keywords： fermentative hydrogen production     anaerobic contact reactor (ACR)     sludge loading rate (SLR)     butyric acid-type    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

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

Abstract: Poly-γ-glutamic acid is an extracellular polymeric substance with various applications owing toHowever, the ability of natural strains to produce poly-γ-glutamic acid is low.licheniformis CGMCC 2876, and a mutant strain M32 with an 11% increase in poly-γ-glutamic acidproduction.The maximum poly-γ-glutamic acid yield of 14.08 g·L–1 was finally reached with 30 g

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

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Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 11-15 doi: 10.1007/s11705-007-0003-y

Abstract: The solid acid catalysts showed more better adaptability than solid base catalysts when the oil has highIR spectral analysis of absorbed pyridine on the samples showed that there were Lewis and BrØnsted acid

Keywords： BrØnsted     reaction     presence     cottonseed     biodiesel    

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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1198-1210 doi: 10.1007/s11705-021-2133-z

Abstract: Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology wereassessed for catalytic activity in biodiesel production.The catalytic biodiesel production reaction over the catalysts were studied by esterification of freefatty acid, oleic acid with methanol.The present catalysts exhibit superior performance in biodiesel production and it can be used for the

Keywords： solid acid catalyst     mesoporous silica     sulfonic acid     biodiesel     esterification     oleic acid    

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Factors affecting production of nonaqueous peracetic acid in tubular packed reactors

ZHANG Tengyun, FAN Hongbo, ZHONG Li, CHUANG Karl

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 196-203 doi: 10.1007/s11705-008-0037-9

Abstract: The synthesis of nonaqueous peracetic acid in acetone by acetaldehyde oxidation was carried out in aThe results show that porous materials are inappropriate for peracetic acid synthesis and only non porousmaterial with appropriate surface area can provide good peracetic acid selectivity and yield.which indicates that the novel reacting system is effective and economical for nonaqueous peracetic acidproduction.
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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: cells (DYC) were used as a cheap nitrogen source to replace expensive yeast extract (YE) for L-lactic acidproduction by thermophilic .Cassava starch (200 g·L ) was converted to L-lactic acid by simultaneous saccharification and fermentationusing WCP10-4 at 50 °C in the presence of 20 g·L of DYC, giving 148.1 g·L of L-lactic acid at 27In contrast, 154.4 g·L of lactic acid was produced at 24 h with a productivity of 6.4 g·L ·h and a

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

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Enhanced production of

Shen Huang,Xudong Feng,Chun Li

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 501-510 doi: 10.1007/s11705-015-1544-0

Abstract: Glucuronidase from Li-3 (PGUS) can efficiently hydrolyze glycyrrhizin into the more valuable glycyrrhetic acidTherefore, the production of PGUS has been improved by optimizing both the fermentation and purification

Keywords： β-glucuronidase     glycyrrhetic acid monoglucuronide     cell disruption     purification     chromatography    

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Synthesis of magnetic carbonaceous acid derived from waste garlic peel for biodiesel production via esterification

Hewei YU, Jinke WU, Wei WEI, Xingyu ZHANG, Changzai REN, Yaoqi DONG, Shen CHENG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 176-187 doi: 10.1007/s11708-022-0836-6

Abstract: By optimizing the esterification conditions to produce biodiesel, an oleic acid conversion of 94.5% wascatalyst dosage) = 10% (w is mass fraction), a molar ratio of n(methanol): n(oleic acidFurther, for catalyst regeneration, it was found that sulfuric acid treatment was more effective for

Keywords： garlic peel (GP)     magnetic carbonaceous acid     esterification     biodiesel    

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A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4-Dichlorophenoxyacetic acid degradation

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1070-7

Abstract:

• A new pulsed switching peroxi-coagulation (PSPC) system was developed.

• The ECT for 2,4-D removal in the PSPC was lower than that in the EF.

• The iron consumption for 2,4-D removal in the PSPC was lower than that in the PC.

Keywords： Pulsed switching peroxi-coagulation system     Energy consumption     Hydroxyl radical production     2     4- Dichlorophenoxyaceticacid    

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Statistical modeling and optimization for enhanced hyaluronic acid production by batch culture of Sreptococcus

Long LIU, Haiquan YANG, Guocheng DU, Miao WANG, Jian CHEN,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 351-356 doi: 10.1007/s11705-009-0248-8

Abstract: This work is aimed to achieve the optimal hyaluronic acid (HA) production by batch culture of via thethe influence of nucleotide bases (adenine, guanine, cytosine, thymine, and uracil) on microbial HA productionBy a 2 FFD, uracil was found to be the most significant factor for cell growth and HA production, whilethe other nucleotide bases were shown to have no significant effects on cell growth and HA productionAlso, the impact of uracil on cell growth and HA production was further investigated by RSM, where two

Keywords： control     microbial HA     thymine     influence     culture    

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Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 401-407 doi: 10.1007/s11705-013-1354-1

Abstract: this study biodiesel was produced from WFO in sub- and super-critical methanol on a zeolite Y solid acidtransesterification of WFO with methanol around its critical temperature combined with a zeolite Y as an acidcatalyst is an efficient approach for the production of biodiesel with acceptable yields.

Keywords： biodiesel     methanol     critical temperature     waste frying oil     zeolite Y    

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The role of lipids in fermentative propionate production from the co-fermentation of lipid and food waste

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1686-0

Abstract:

● Lipid can promote PA production on a target from food waste.

Keywords： Acidogenic fermentation     Microbial community     Volatile fatty acid     Propionate     Food waste     Lipid    

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Potential hybrid feedstock for biodiesel production in the tropics

Solomon GIWA,Oludaisi ADEKOMAYA,Collins NWAOKOCHA

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 329-336 doi: 10.1007/s11708-016-0408-8

Abstract: Recently, mixture of different oils at various proportions have been used as feedstock for biodiesel productionThe primary aim is to improve fuel properties which are strongly influenced by the fatty acid compositionThis present paper investigated biodiesel production from hybrid oil (HO) of PKO (medium carbon chain

Keywords： groundnut oil     palm kernel oil     methyl ester     fuel properties     tropics     fatty acid composition    

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Profiling influences of gene overexpression on heterologous resveratrol production in

Duo Liu,Bingzhi Li,Hong Liu,Xuejiao Guo,Yingjin Yuan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 117-125 doi: 10.1007/s11705-016-1601-3

Abstract: Metabolic engineering of heterologous resveratrol production in faces challenges as the precursor L-tyrosineSingle-gene overexpression and DNA assembly-directed multigene overexpression affect the production ofresveratrol as well as its precursor -coumaric acid.Finally, the collaboration of selected gene targets leads to an optimal resveratrol production of 66.14±3.74 mg·L , 2.27 times higher than the initial production in YPD medium (4% glucose).

Keywords： resveratrol     aromatic amino acid     DNA assembly     metabolic engineering     gene overexpression    

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Title Author Date Type Operation

High production of butyric acid by

Chao Ma,Jianfa Ou,Matthew Miller,Sarah McFann,Xiaoguang (Margaret) Liu

Journal Article

Continuous biohydrogen production from diluted molasses in an anaerobic contact reactor

Sheng CHANG, Jianzheng LI, Feng LIU

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Journal Article

Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Journal Article

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Journal Article

Factors affecting production of nonaqueous peracetic acid in tubular packed reactors

ZHANG Tengyun, FAN Hongbo, ZHONG Li, CHUANG Karl

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

Enhanced production of

Shen Huang,Xudong Feng,Chun Li

Journal Article

Synthesis of magnetic carbonaceous acid derived from waste garlic peel for biodiesel production via esterification

Hewei YU, Jinke WU, Wei WEI, Xingyu ZHANG, Changzai REN, Yaoqi DONG, Shen CHENG

Journal Article

A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4-Dichlorophenoxyacetic acid degradation

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

Journal Article

Statistical modeling and optimization for enhanced hyaluronic acid production by batch culture of Sreptococcus

Long LIU, Haiquan YANG, Guocheng DU, Miao WANG, Jian CHEN,

Journal Article

Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Journal Article

The role of lipids in fermentative propionate production from the co-fermentation of lipid and food waste

Journal Article

Potential hybrid feedstock for biodiesel production in the tropics

Solomon GIWA,Oludaisi ADEKOMAYA,Collins NWAOKOCHA

Journal Article

Profiling influences of gene overexpression on heterologous resveratrol production in

Duo Liu,Bingzhi Li,Hong Liu,Xuejiao Guo,Yingjin Yuan

Journal Article