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Mapping the structure-activity relationship of

Worawan PANPIPAT, Hasene KESKIN, Zheng GUO

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 105-113 doi: 10.1007/s11705-015-1502-x

Abstract: The phase behavior of twelve synthesized -sitosteryl fatty acid esters with acyl moieties with differentThe surface-pressure isotherms showed that short chain -sitosteryl fatty acid esters gave smaller meanmolecular areas and had decreased monolayer stability and the long chain steryl esters did not produceAll the steryl esters displayed strong condensing effects, but there was a pronounced structural dependency: medium chain esters (C8 and C10) were less efficient than short and long chain esters.

Keywords： <em>βem>-sitosteryl fatty acid esters     dipalmitoyl phosphatidylcholine     Langmuir monolayer     condensing    

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Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 778-783 doi: 10.1007/s11783-012-0434-7

Abstract: The abiotic association between phthalic acid esters (PAEs) and humic substances (HS) in sludge landfillthe abiotic association of two abundant PAEs (diethyl phthalate and di- -butyl phthalate) with humic acid

Keywords： abiotic association     phthalic acid esters (PAEs)     humic acid     sludge     landfill    

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A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acidesters in contaminated soils

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 31-42 doi: 10.1007/s11783-012-0463-2

Abstract: GC-MS) combined with accelerated solvent extraction (ASE) is developed for the analysis of six phthalic acidesters (PAEs), which are priority soil pollutants nominated by United States Environmental Protection

Keywords： phthalic acid esters     quality assurance and quality control     soil type     accelerated solvent extraction     certified    

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Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic acid

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0884-4

Abstract: Flow cytometry based on nucleic acid stains and CTC was established and optimized.

Keywords： Flow cytometry     <em>Escherichia coliem>     <em>Staphylococcusaureusem>     UV     CTC     SYTO 9    

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Adsorption kinetics and rejection characteristics of phthalic acid esters in NF membrane

Jin Ye,Wu Liguang,Zhang Lin

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 36-41

Abstract:

The removal of trace phthalic acid esters (PAEs) in water used DK nanofiltration

Keywords： Phthalic acid esters     Nanofiltration     Adsorption     Rejection    

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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 acidCassava 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 aUse of pre-autolyzed DYC at 50 °C for overnight slightly improved the lactic acid titer (154.5 g·L )

Keywords： L-lactic acid     thermophilic strain     <em>Bacillus coagulansem>     dry yeast cells     autolysis     fermentation    

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Effects of fatty acid chain length and degree of unsaturation on the surface activities of monoacyl trehaloses

Yue-E SUN, Wenshui XIA, Xueyan TANG, Zhiyong HE, Jie CHEN,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 407-412 doi: 10.1007/s11705-009-0255-9

Abstract: The surface properties of monoacyl trehaloses with different acyl chains were investigated at 30°C, 40°C, 50°C, and 60°C. Monoacyl trehaloses were enzymatically synthesized and purified with silica gel column chromatography and semi-preparative high-performance liquid chromatography (HPLC), and the purity of products was identified by mass spectrometry (MS) and nuclear magnetic resonance (NMR). The surface tension of monoacyl trehalose in pure water was measured using Doüy ring method at different temperatures. The critical micelle concentrations (CMC), surface tension at the CMC, , and residual area per molecule, , were estimated from the curves. The CMC value of unsaturated monoacyl trehalose was affected by both the degree of unsaturation and the acyl chain length, and the effect of chain length on the CMC value was much stronger than that of the unsaturation degree. However, there was no significant dependency of the value and a values on the chain length or the unsaturated degree.

Keywords： high-performance liquid     tension     different     spectrometry     chromatography    

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Resource utilization of typical biomass wastes as biochars in removing plasticizer diethyl phthalate from water: characterization and adsorption mechanisms

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1605-4

Abstract:

● Six largely produced agricultural biomass wastes were pyrolyzed into biochars.

Keywords： Plastic pollution     Phthalic acid esters     Designed biochar     Wetland plant     Adsorption    

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Organophosphate esters in sediment from Taihu Lake, China: Bridging the gap between riverine sources

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1464-9

Abstract:

• Eleven OPEs were detected in river sediment and lake sediment in Taihu Lake.

Keywords： Organophosphate esters     Partition     Vertical distribution     Composition profile     Positive matrix factorization    

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EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 623-634 doi: 10.15302/J-FASE -2021400

Abstract: edible oil due to its short growth cycle and rapid lipid accumulation, especially of docosahexaenoic acidThere was a significant difference (P<0.05) in polyunsaturated fatty acid composition between

Keywords： antioxidant activity / aqueous enzymatic extraction / edible microalgal oil / fatty acid composition    

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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: The primary aim is to improve fuel properties which are strongly influenced by the fatty acid compositionThe principal fatty acids (FAs) in the HO are oleic (35.62%) and lauric acids (24.23%) with 47.80% of

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

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Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 784-791 doi: 10.1007/s11783-013-0590-4

Abstract: Renewable algae biomass, was used as substrate for generating electricity in two chamber microbial fuel cells (MFCs). From polarization test, maximum power density with pretreated algal biomass was 102 mW·m (951 mW·m ) at current generation of 276 mA·m . The individual electrode potential as a function of current generation suggested that anodic oxidation process of algae substrate had limitation for high current generation in MFC. Total chemical oxygen demand (TCOD) reduction of 74% was obtained when initial TCOD concentration was 534 mg·L for 150 h of operation. The main organic compounds of algae oriented biomass were lactate and acetate, which were mainly used for electricity generation. Other by-products such as propionate and butyrate were formed at a negligible amount. Electrochemical Impedance Spectroscopy (EIS) analysis pinpointed the charge transfer resistance (112 ?) of anode electrode, and the exchange current density of anode electrode was 1214 nA·cm .

Keywords： microbial fuel cell (MFC)     algae     bioelectricity     substrate     volatile fatty acid     biomass     COD removal efficiency    

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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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Human Prostate-Specific Antigen Carries <em>Nem>-Glycans with Ketodeoxynononic Acid Article

Wei Wang, Tao Zhang, Jan Nouta, Peter A. van Veelen, Noortje de Haan, Theo M. de Reijke, Manfred Wuhrer, Guinevere S.M. Lageveen-Kammeijer

Engineering 2023, Volume 26, Issue 7,   Pages 119-131 doi: 10.1016/j.eng.2023.02.009

Abstract:

Ketodeoxynononic acid (Kdn) is a rather uncommon class of sialic acid in mammals.Here, we report for the first time that Kdn is expressed on prostate-specific antigen (PSA) <em>Nem

Keywords： Ketodeoxynononic acid     Kdn     Glycosylation     Prostate cancer     Prostate-specific antigen    

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Preparation of starch esters with crosslinking structures derived from dianhydride

Huijuan CHU, Hongliang WEI, Jing ZHU, Shouyin HU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 51-54 doi: 10.1007/s11705-010-0534-5

Abstract: FTIR and UV analysis verified the formation of starch esters.

Keywords： potato starch     pyromellitic dianhydride     esterification     crosslink    

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Title Author Date Type Operation

Mapping the structure-activity relationship of

Worawan PANPIPAT, Hasene KESKIN, Zheng GUO

Journal Article

Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Journal Article

A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acidesters in contaminated soils

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Journal Article

Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic acid

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Journal Article

Adsorption kinetics and rejection characteristics of phthalic acid esters in NF membrane

Jin Ye,Wu Liguang,Zhang Lin

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

Effects of fatty acid chain length and degree of unsaturation on the surface activities of monoacyl trehaloses

Yue-E SUN, Wenshui XIA, Xueyan TANG, Zhiyong HE, Jie CHEN,

Journal Article

Resource utilization of typical biomass wastes as biochars in removing plasticizer diethyl phthalate from water: characterization and adsorption mechanisms

Journal Article

Organophosphate esters in sediment from Taihu Lake, China: Bridging the gap between riverine sources

Journal Article

EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Journal Article

Potential hybrid feedstock for biodiesel production in the tropics

Solomon GIWA,Oludaisi ADEKOMAYA,Collins NWAOKOCHA

Journal Article

Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Journal Article

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

Journal Article

Human Prostate-Specific Antigen Carries <em>Nem>-Glycans with Ketodeoxynononic Acid

Wei Wang, Tao Zhang, Jan Nouta, Peter A. van Veelen, Noortje de Haan, Theo M. de Reijke, Manfred Wuhrer, Guinevere S.M. Lageveen-Kammeijer

Journal Article

Preparation of starch esters with crosslinking structures derived from dianhydride

Huijuan CHU, Hongliang WEI, Jing ZHU, Shouyin HU

Journal Article