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Integrated Biological–physical process for biogas purification effluent treatment

Journal of Environmental Sciences 2019年第9期31卷 110-122页

作者： Roslan Noorain Tomonori Kindaichi Noriatsu Ozaki Yoshiteru Aoi Akiyoshi Ohashi Department of Civil and Environmental Engineering Graduate School of Engineering Hiroshima University 1-4-1 Kagamiyama Higashihiroshima Hiroshima 739-8527 Japan Section of Environmental Engineering Technology Malaysia Institute of Chemical & Bioengineering Technology University Kuala Lumpur Lot 1988 Kawasan Perindustrian Bandar Vendor Taboh Naning 78000 Alor Gajah Melaka Malaysia Department of Molecular Biotechnology Graduate School of Advanced Sciences of Matter Hiroshima University 1-3-1 Kagamiyama Higashihiroshima 739-8530 Japan

Biogas purification via water scrubbing produces effluent containing dissolved CH4, H2S,and CO2, which should be removed to reduce greenhouse gas emissions and increase its potential for water regeneration. In this study, a reactor built with air supplies at the top and bottom was utilized for the treatment of biogas purification effluent through Biological oxidation and physical stripping processes. Up to 98% of CH4 was removed through Biological treatment at a hydraulic retention time of 2 hr and an upper airflow rate of 2.02 L/day. Additionally, a minimum CH4 concentration of 0.04% with no trace of H2S gas was detected in the off gas. Meanwhile, a white precipitate was captured on the carrier showing the formation of sulfur. According to the developed mathematical model, an upper airflow rate of greater than 2.02 L/day showed a small deterioration in CH4 removal performance after reaching the maximum value, whereas a 50 L/day bottom airflow rate was required to strip the CO2 efficiently and raise the effluent p H from 5.64 to 7.3. MicroBiological analysis confirmed the presence of type 1 methanotroph communities dominated by Methylobacter and Methylocaldum. However, bacterial communities promoting sulfide oxidation were dominated by Hyphomicrobium.

关键词： Biogas purification effluent Dissolved methane pH elevation Biological oxidation CO2 stripping

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Organic and Inorganic Mercury in Biological Samples of Flouresecent Lamp Industries Workers and Health Risks

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Biomedical and Environmental Sciences 2020年第2期33卷 89-102页

作者： Nayab GUL Sardar KHAN Abbas KHAN Javed NAWAB Adnan SARWAR Nida GUL Climate Change Centre The University of AgriculturePeshawar 25120Pakistan Department of Environmental Sciences University of PeshawarPeshawar 25120Pakistan Drug Control Administration Government of Khyber PakhtunkhwaHealth DepartmentPeshawar 25120Pakistan Department of Environmental Sciences Abdul Wali Khan University MardanPeshawar 25120Pakistan Pak International Medical College and Research Institute HayatabadPeshawar 25120Pakistan

Objective The present study aims to investigate the concentrations of Hg and its aspects methyl mercury(Me-Hg)and inorganic mercury(I-Hg)in the Biological samples(BSs)of fluorescent lamp industries workers(FLIWs).Methodology Different BSs including red blood cells(RBCs),plasma,urine,hair and nails were collected from the workers exposed to Hg and unexposed persons were selected as control group to measure both the T-Hg concentration as well as its species in different Biological samples through quantitative analysis.Health data was collected through questionnaire survey.Results The mean concentrations of T-Hg(31.9μg/L),Me-Hg(27.7μg/L),and I-Hg(5.36μg/L)in RBCs were found significantly(P<0.001)higher among the workers(n=40)as compared to the control group(n=40).Similarly the mean Hg concentrations in plasma,urine,hair and nails were also significantly higher among the workers than the control group.The statistical relation between Hg concentration and demographic characteristics observed that workers experience and fish consumption has increased the Hg concentration while age,weight and smoking found no significant effect on Hg concentration in the BSs.Conclusion The study observed that the workers were highly exposed to high concentration of Hg and they are at a high health risk.

关键词： Mercury Health risk Fluorescent lamp industries Regression Demographic characteristics Biological samples

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Marine sponges of the genus Stelletta as promising drug sources: chemical and Biological aspects

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Acta Pharmaceutica Sinica B 2019年第2期9卷 237-257页

作者： Qihao Wu Bastien Nay Min Yang Yeke Ni Hong Wang Ligong Yao Xuwen Li State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences College of Pharmaceutical Science Zhejiang University of Technology Laboratoire de Synthèse Organique UMR 7652 CNRS Ecole Polytechnique Université Paris-Saclay

Marine sponges of the genus Stelletta are well known as rich sources of diverse and complex Biologically relevant natural products, including alkaloids, terpenoids, peptides, lipids, and steroids. Some of these metabolites, with novel structures and promising Biological activities, have attracted a lot of attention from chemists seeking to perform their total synthesis in parallel to intensive Biological studies towards new drug leads. In this review, we summarized the distribution of the chemically investigated Stelletta sponges, the isolation, synthesis and Biological activities of their secondary metabolites, covering the literature from 1982 to early 2018.

关键词： Marine natural products Stelletta sponge Isolation Total synthesis Biological activity Marine drug leads

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Assessment of Biological functions for C3A cells interacting with adverse environments of liver failure plasma

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Hepatobiliary & Pancreatic Diseases International 2020年第2期19卷 129-137页

作者： Zu-Hong Li Zhong-Yang Xie Xiao-Xi Ouyang Kai-Zhou Huang Xiao-Peng Yu Ya-Lei Zhao Yan-Hong Zhang Dan-Hua Zhu Jiong Yu Lan-Juan Li State Key Laboratory for Diagnosis and Treatment of Infectious Diseases Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseasesthe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Background:For its better differentiated hepatocyte phenotype,C3A cell line has been utilized in bioar-tificial liver system.However,up to now,there are only a few of studies working at the metabolic alter-nations of C3A cells under the culture conditions with liver failure plasma,which mainly focus on car-bohydrate metabolism,total protein synthesis and ureagenesis.In this study,we investigated the effects of acute liver failure plasma on the growth and Biological functions of C3A cells,especially on CYP450 enzymes.Methods:C3A cells were treated with fresh DMEM medium containing 10%FBS,fresh DMEM medium containing 10%normal plasma and acute liver failure plasma,respectively.After incubation,the C3A cells were assessed for cell viabilities,lactate dehydrogenase leakage,gene transcription,protein levels,albu-min secretion,ammonia metabolism and CYP450 enzyme activities.Results:Cell viabilities decreased 15%,and lactate dehydrogenase leakage had 1.3-fold elevation in acute liver failure plasma group.Gene transcription exhibited up-regulation,down-regulation or stability for different hepatic genes.In contrast,protein expression levels for several CYP450 enzymes kept constant,while the CYP450 enzyme activities decreased or remained stable.Albumin secretion reduced about 48%,and ammonia accumulation increased approximately 41%.Conclusions:C3A cells cultured with acute liver failure plasma showed mild inhibition of cell viabilities,reduction of albumin secretion,and increase of ammonia accumulation.Furthermore,CYP450 enzymes demonstrated various alterations on gene transcription,protein expression and enzyme activities.

关键词： C3A cells Acute liver failure Biological function CYP450 enzymes

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Prolonged milk provisioning and extended maternal care in the milking spider Toxeus magnus: Biological implications and questions unresolved

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Zoological Research 2019年第4期40卷 241-243页

作者： Bing Dong Rui-Chang Quan Zhan-Qi Chen CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesXishuangbanna Yunnan 666303China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesXishuangbanna Yunnan 666303China University of Chinese Academy of Sciences Beijing 100049China

Prolonged milk provisioning and extended parental care for nutritionally independent offspring, previously considered to only co-occur in long-lived mammals (Clutton-Brock, 1991;Royle et al., 2012), were recently reported in the reproduction of the milking spider, Toxeus magnus (Chen et al. 2018). Newly hatched T. magnus spiderlings require 53 days to develop to maturity, with an average adult body length of 6.6 mm.

关键词： milking spider Toxeus magnus Biological implications Prolonged milk provisioning

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Interleukin 12/interleukin 23 pathway: Biological basis and therapeutic effect in patients with Crohn's disease

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World Journal of Gastroenterology 2018年第36期24卷 4093-4103页

作者： Ioanna Aggeletopoulou Stelios F Assimakopoulos Christos Konstantakis Christos Triantos Division of Gastroenterology Department of Internal MedicineMedical SchoolUniversity of Patras Department of Internal Medicine University Hospital of Patras

Considering that both innate and adaptive immune responses are involved in the pathogenesis of Crohn's disease(CD), novel therapeutic options have significantly been developed. Biological agents represent an important addition to the conventional treatments for immuno-inflammatory conditions, acting as antagonists of adhesion molecules or various inflammatory cytokines. The interleukin 12(IL-12)/IL-23 common pathway has been found to play a determinant role in the induction of inflammation in adaptive immune responses. In particular, IL-23 promotes the differentiation of na?ve T helper cells into Th17 phenotype with the concomitant secretion of several inflammatory cytokines such as IL-17 and IL-22, whereas IL-12 induces the Th1 polarization and production of critical cytokines such as interferon-γ and tumor necrosis factor. Nowadays, there is increased interest regarding the role of IL-23 as a therapeutic target of CD through the blockage of IL-23 mediated pathways. In this editorial, we focus on the role of IL-12/IL-23 pathway in the regulation of mucosal immunity and in the induction and maintenance of chronic inflammation. In parallel, we critically discuss the available data regarding the therapeutic effect of the IL-12/IL-23 inhibitors and especially of ustekinumab, a human monoclonal antibody which has been recently approved by the United States Food and Drug Administration for the management of moderateto-severe CD and its potential to be used as first-line therapy in everyday clinical practice.

关键词： Crohn’s disease Interleukin 12 Interleukin 23 Monoclonal antibodies Ustekinumab Biological agents Interleukin 12/interleukin 23 blockade

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Influence of the Biological carbon pump effect on the sources and deposition of organic matter in Fuxian Lake, a deep oligotrophic lake in southwest China

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Acta Geochimica 2019年第5期38卷 613-626页

作者： Haibo He Zaihua Liu Chongying Chen Yu Wei Qian Bao Hailong Sun Yundi Hu Hao Yan State Key Laboratory of Environmental Geochemistry Institute of GeochemistryCASGuiyang 550081China University of Chinese Academy of Sciences Beijing 100049China CAS Center for Excellence in Quaternary Science and Global Change Guiyang 550081China

Biological carbon pumping(BCP)is a key process in which dissolved inorganic carbon in terrestrial aquatic ecosystems is utilized by aquatic autotrophs for photosynthesis and transformed into autochthonous organic matter(AOC).However,the mechanisms underlying BCP and the amount of generated AOC deposited effectively,are still poorly understood.Therefore,we conducted a systematic study combining modern hydrochemical monitoring and a sediment trap experiment in Fuxian Lake(Yunnan,SW China),the second-deepest plateau,oligotrophic freshwater lake in China.Temperature,pH,EC(electrical conductivity),DO(dissolved O2),[HCO3^-],[Ca^2+],SIc,partial CO2(pCO2)pressure,and carbon isotopic compositions of HCO3^-(δ^13CDIc)in water from Fuxian Lake all displayed distinct seasonal and vertical variations.This was especially apparent in an inverse correlation between pCO2 and DO,indicating that variations of hydrochemistry in the lake water were mainly controlled by the metabolism of the aquatic phototrophs.Furthermore,the lowest C/N ratios and highestδ^13Corg were recorded in the trap sediments.Analyses of the C/N ratio demonstrated that the proportions of AOC ranged from 30%to 100%of all OC,indicating that AOC was an important contributor to sedimentary organic matter(OC).It was calculated that the AOC flux in Fuxian Lake was 20.43 t C km^-2 in 2017.Therefore,AOC produced by carbonate weathering and aquatic photosynthesis could potentially be a significant carbon sink and may have an important contribution to solving the lack of carbon sinks in the global carbon cycle.

关键词： Carbonate weathering Hydrochemical variation Biological carbon pump effect Sediment trap Autochthonous organic carbon Carbon sink

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Parasitoid wasps as effective Biological control agents

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Journal of Integrative Agriculture 2019年第4期18卷 705-715页

作者： WANG Zhi-zhi LIU Yin-quan SHI Min HUANG Jian-hua CHEN Xue-xin Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects Zhejiang University State Key Lab of Rice Biology Zhejiang University Institute of Insect Sciences Zhejiang University

Biological control(biocontrol) is a safe, sustainable approach that takes advantage of natural enemies such as predators, parasitic insects or pathogens to manage pests in agroecosystems. Parasitoid wasps, a very large evolutionary group of hymenopteran insects, are well-known Biological control agents for arthropod pests in agricultural and forest ecosystems. Here, we summarize the recent progress on the application of parasitoid wasps in biocontrol in China for the last five years. These include species diversity of parasitoid wasps, identification of dominant parasitoid wasps associated with insect pests and biocontrol practices(three types of Biological control, i.e., classical, augmentative and conservation Biological control) in several Chinese agroecosystems. We then treat different mass-rearing and release technologies and the commercialization of several parasitoid wasp species. We also summarize other work that may have a potential use in biocontrol, including the effect of plant volatiles on parasitoids and recent advance in the molecular mechanisms underlying the host regulation by parasitoid wasps. Future research area and applied perspectives are also discussed, noting that advances in biocontrol technologies in Chinese agriculture informs research at the global level.

关键词： parasitoid wasp predator Biological control/biocontrol Biological control/biocontrol agent cereal crop vegetable crop mass-rearing field release plant volatile parasitoid-host interaction

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The history and future of the Biological resources of the Caspian and the Aral Seas

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Journal of Oceanology and Limnology 2018年第6期36卷 2061-2084页

作者： N.V.ALADIN T.CHIDA Yu.S.CHUIKOV Z.K.ERMAKHANOV Y.KAWABATA J.KUBOTA P.MICKLIN I.S.PLOTNIKOV A.O.SMUROV V.F.ZAITZEV Zoological Institute RAS St.-Petersburg 199034Russia Nagoya University of Foreign Studies Nisshin 470-0197Japan Astrakhan State University Astrakhan 414056Russia Aral Branch of Kazakh Research Institute of Fishery Aralsk 120100Kazakhstan Tokyo University of Agriculture and Technology Fuchu Tokyo 183-8509Japan National Institutes for the Humanities Tokyo 105-0001Japan Western Michigan University Kalamazoo 49008USA Astrakhan State Technical University Astrakhan 414056Russia

The term ‘Biological resources' here means a set of organisms that can be used by man directly or indirectly for consumption. They are involved in economic activities and represent an important part of a country's raw material potential. Many other organisms are also subject to rational use and protection. They can be associated with true resource species through interspecific relationships. The Caspian and Aral Seas are continental water bodies, giant saline lakes. Both categories of species are represented in the benthic and pelagic communities of the Caspian and Aral Seas and are involved in human economic activities. The most important Biological resource of the Caspian Sea and the Aral Sea is their ichthyofauna, represented by both aboriginal species and species introduced by man in the 20 th century. Among invertebrates, the main Biological resource of these saline lakes is the brine shrimp A rtemia. The physical state of the Caspian as a water body is relatively stable but its Biological resources are very seriously af fected by irrational use. The Aral Sea since the second half of the 20 t h century has experienced catastrophic anthropogenic regression, which has led to the almost complete loss of its Biological resources due to salinization. However, thanks to efficacious engineering measures, it has now become possible to preserve its northern part(Small Aral) and rehabilitate it, lowering the salinity to its former state. The result has been the restoration of its fish Biological resources. In the southern part of Aral(Large Aral), which turned into a group of separated hypersaline reservoirs, the only resource species currently available is the brine shrimp A rtemia. The main environmental threats for Biological resources of the future Caspian and Aral as well as potential solutions are considered.

关键词： Caspian Sea Aral Sea Biological resources fauna fish invertebrates

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Syntheses, Crystal Structures and Biological Activities of the 2-Oxo-3-phenylpropionic Acid Arylformylhydrazone Dibenzyltin Complexes

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Chinese Journal of Structural Chemistry 2019年第11期38卷 1947-1955页

作者：李远祥余浩田曾慧婷刘梦琴邝代治谭宇星蒋伍玖 Key Laboratory of Functional Metal-organic Compounds of Hunan Province Key Laboratory of Functional Organometallic MaterialsUniversity of Hunan ProvinceCollege of Chemistry and Materials ScienceHengyang Normal UniversityHengyangHunan 421008China School of Medicine Technology Hunan Polytechnic of Environment and BiologyHunan 421005China

Two 2-oxo-3-phenylpropionic acid arylformylhydrazone dibenzyltin(IV)complexes{[C4H3O(O)C=N-N=C(PhCH2)COO](C6H5CH2)2Sn(CH3OH)}2(Ⅰ)and{[t-Bu-C6H4(O)C=N-N=C(PhCH2)COO](C6H5CH2)2Sn(CH3OH)}2(Ⅱ)have been synthesized and characterized by IR,1H,13C and 119Sn NMR spectra,HRMS,and elemental,thermal stability and single-crystal X-ray diffraction analyses.Complex I crystallizes in the triclinic system,space group P1 with a=9.0392(9),b=10.249(1),c=15.5762(15)?,α=98.605(1)°,β=103.765(1)°,γ=104.056(1)°,Z=2,V=1326.3(2)?3,Dc=1.511 Mg·m^–3,m(MoKa)=1.005 mm–1,F(000)=612,R=0.0206 and wR=0.0524.Complex Ⅱ belongs to triclinic system,space group P1,a=11.4643(3),b=11.8885(3),c=13.0362(4)?,α=73.800(1)°,β=71.679(1)°,γ=79.006(1)°,Z=2,V=1609.34(8)?3,Dc=1.381 Mg·m^–3,m(MoKa)=0.833 mm–1,F(000)=688,R=0.0244 and wR=0.0244.In vitro antitumor activities of both complexes were evaluated by MTT against three human cancer cell lines(NCI-H460,HepG2 and MCF7)and human cell lines(HL7702).Both complexes exhibit better antitumor activity.Furthermore,the interaction between both complexes and calf thymus DNA was studied with EB fluorescent probe.

关键词： organotin complex hydrazine synthesis crystal structure Biological activity

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