检索结果-南通市图书馆

The effect of salinity on Fucus ceranoides (Ochrophyta,Phaeophyceae) in the Mondego River(Portugal)

Journal of Oceanology and Limnology 2019年第3期37卷 881-891页

作者： COTAS Joao FIGUEIRINHA Artur pereira leonel BATISTA Teresa Department of Life Sciences University of CoimbraCoimbra 3001-456Portugal MARE-Marine and Environmental Sciences Centre Faculty of Science and TechnologyUniversity of CoimbraCoimbra 3000-548Portugal Laboratory of Pharmacognosy Faculty of PharmacyUniversity of CoimbraCoimbra 3000-548Portugal LAQV REQUIMTEFaculty of PharmacyUniversity of CoimbraCoimbra 3000-548Portugal CIEPQPF Department of Chemical EngineeringFaculty of Science and TechnologyUniversity of CoimbraCoimbra 3030-790Portugal

Algae(and their extracts)are increasingly important for pharmaceutical applications due to the diversity of useful compounds they *** genus Fucus contains one of the most studied species,Fucus *** species *** differs from the others of the genus by presenting longitudinal air-vesicles and a capacity to survive at low *** is an alga that inhabits the Mondego River estuary(Portugal),at the southern limit of its distribution,and can serve as a role model to understand the effect of a salt gradient on the production of bioactive *** assessed the phenolic content and antioxidant activity of different *** extracts(***,aqueous and polysaccharide)prepared from samples harvested from two different zones to evaluate if the adaptation of *** to different salinity levels influenced its chemical *** antioxidant activity of the extracts was determined using 1,2-diphenyl-picrylhydrazyl(DPPH)and 2.2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)(ABTS)*** assays demonstrated that the methanolic extract of lyophilized *** that grew at low salinities was the most bioactive,***(IC 50=50.39μg/mL)and ABTS(TEAC=2.42).The total phenolic content(Folin-Ciocalteu method)and the methanolic extract of the lyophilized *** collected from a low salinity habitat exhibited the highest phenolic content(PGE=49.48μg/mg of lyophilized extract)amongst those *** layer chromatography(TLC)and Fourier transform infrared spectroscopy(FTIR)were used for the identification of compounds in the *** characterization allowed confirmation that the various extracts contained almost the same compounds but with notable quantitative *** on these results,we conclude that there were differences in the quantity of the compounds due to the effect of *** drying methods used were also found to have influenced the quality of the extracted compounds.

关键词： Fucus ceranoides salinity gradient sequential extractions phenolic content dependent bioactivities spectroscopic analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Production of bio-fertilizer from Ascophyllum nodosum and Sargassum muticum (Phaeophyceae)

引用

Journal of Oceanology and Limnology 2019年第3期37卷 918-927页

作者： SILVA Luís Daniel BAHCEVANDZIEV Kiril pereira leonel Faculty of Science and Technology University of CoimbraCoimbra 3000-456Portugal Polytechnic Institute of Coimbra Agricultural CollegeⅡA-Institute of Applied ResearchCERNAS-Research Centre for Natural ResourcesEnvironmentand SocietyBencantaCoimbra 3045-601Portugal Faculty of Science and Technology University of CoimbraCoimbra 3000-548Portugal

Oceans and seas form a large body of water that contains a natural *** humans,represents a resource,which makes this a point of interest,from researches to improve the *** produce many compounds and secondary metabolites that can be used in different fi elds of industry such as food,agricultural,pharmaceutical and *** though seaweeds are ancestral resources,recently it was notorious a global interest in knowing more about its potentials,where biotechnology plays an important role in *** showed that seaweed has many bioactive compounds benefi cial to plant development,giving them a great potential as an agricultural *** seaweeds to the soil provides organic matter,minerals,trace elements,growth plant regulator,metabolites,vitamins,and amino acids and it can work as a soil *** Portugal,the use of seaweeds for agriculture is important since long time *** the past,populations that lived near coastal zone depended on the seaweeds as a family subsistence but,throughout the years,synthetic fertilizers replaced *** work aimed to assess the potential of the extracts obtained from Ascophyllum nodosum and from Sargassum muticum as an agricultural *** evaluation was carried out with rice plants(Oryza sativa)and lettuce(Lactuca sativa),in germination bioassays,the culture of rice and lettuce plants in pots,and culture of lettuce plants in *** that,seaweed liquid extracts were used in different concentrations in different *** show that extracts obtained from two seaweeds,*** and ***,can be promissory plant biofertilizer at a concentration of 25% and had a positive effect on seed germination,plant development,and production.

关键词： fertilizer bioactive compounds Ascophyllum nodosum Sargassum muticum Oryza sativa Lactuca sativa

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Bioactive substances of various seaweeds and their applications and utilization

引用

Journal of Oceanology and Limnology 2019年第3期37卷 779-782页

作者： DUAN Delin CRITCHLEY Alan T. FU Xiaoting pereira leonel Key Lab of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of ScienceQingdao 266071China State Key Lab of Seaweed Bioactive Substances Qingdao 266400China Verschuren Centre for Sustainability in Energy and the Environment Cape Breton UniversitySydneyNova Scotia B1P 6L2Canada College of Food Science & Engineering Ocean University of ChinaQingdao 266000China MARE (Marine and Environmental Sciences Centre) Department of Life SciencesFaculty of Sciences and TechnologyUniversity of CoimbraCoimbra 3000-456Portugal

Over the past century or more,traditional uses of seaweeds began and initially comprised the simple collection,sorting and drying of seaweeds harvested from the wild,or cast upon the beach,for use as soil“manure/fertilizer/improver”.Some macroalgae were used for unprocessed food purposes and subsequently harvested and cultivated biomasses of selected brown and red seaweeds becameindustrially processed to yield alginates,mannitol,iodine,agar,agarose,carrageenan,and more recently biostimulants,*** from various seaweeds are very diverse and are commonly applied in a range that includes textiles and dying,food/feed and supplements and specialized medical applications.

关键词： century collection macroalgae

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Antioxidant and antitumor potential of wild and IMT-Acultivated Osmundea pinnatifida

引用

Journal of Oceanology and Limnology 2019年第3期37卷 825-835页

作者： SILVA J.Paulo ALVES Celso PINTEUS Susete SILVA Joana VALADO Ana PEDROSA Rui pereira leonel UCIBIO-REQUIMTE Department of ChemistryFaculty of Sciences and TechnologyUniversidade NOVA de LisboaCaparica 2829-516Portugal MARE-Marine and Environmental Sciences Centre School of Tourism and Maritime TechnologyPolytechnic Institute of LeiriaPeniche 2520-641Portugal Instituto Politécnico de Coimbra ESTESC-Coimbra Health SchoolBiomedical Sciences LaboratoryR.5 de OutubroS.Martinho do BispoAp.7006Coimbra 3046-854Portugal Centre of Pharmacology and Chemical Biopathology Faculty of MedicineUniversity of PortoPorto 4200-319Portugal MARE-Marine and Environmental Sciences Centre Department of Life SciencesFaculty of Sciences and TechnologyUniversity of CoimbraCoimbra 3000-456Portugal

Osmundea pinnatifida is a red edible seaweed known as pepper *** was cultivated in the farm of ALGAplus(ílhavo,Portugal).This farm is integrated with a seabream and seabass commercial aquaculture and uses the nutrient-enriched water resultant from the fish production as its cultivation medium in the integrated multi-trophic aquaculture(IMTA)*** and IMTA-cultivated samples of *** da were screened for antioxidant and antitumor *** antioxidant capacity of solvent extracts from wild and IMTA cultivated samples was assessed in two methods(2,2-diphenyl-1-picrylhydrazyl(DPPH)and oxygen radical absorbance capacity(ORAC)),and their total phenolic contents(TPC)were *** activity was evaluated in three different tumor cell lines(HepG-2,MCF-7,and SH-SY5Y)through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)*** the solvents used for extraction,dichloromethane was the most eff ective to extract phenolic compounds and presented higher ORAC.A significant correlation was found between TPC and ORAC,which was also sustained by the principal components analysis(PCA).Dichloromethane extracts induced a cytostatic eff ect on MCF-7 cells and showed weak cytotoxicity to SH-SY5Y cells and weak impact on cell ***,there were no statistically signifi cant differences in the biological activities shown by the wild and IMTA-cultivated ***,*** can be obtained in an economical and environmentally sustainable way through IMTA,maintaining bioactive properties in a high potential for further nutraceutical purposes.

关键词： edible seaweed bioactive compounds polyphenols cytotoxic activity antiproliferative activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Extracts of the seaweed Bifurcaria bifurcata display antifungal activity against human dermatophyte fungi

引用

Journal of Oceanology and Limnology 2019年第3期37卷 848-854页

作者： CARVALHO G.Loic SILVA Raquel GONCALVES J.Maria BATISTA T.Maria pereira leonel Environmental and Biochemical Sciences Group the James Hutton InstituteDundee DD2 5DAScotlandUK Institute of Mechanical Process and Energy EngineeringSchool of Engineering and Physical SciencesHeriot Watt UniversityEdinburgh EH14 4ASScotlandUK MARE (Marine and Environmental Sciences Centre) Department of Life SciencesFaculty of Sciences and TechnologyUniversity of CoimbraCoimbra 3030-790Portugal CIEPQPF Department of Chemical EngineeringFaculty of Science and TechnologyUniversity of CoimbraCoimbra 3030-790Portugal

Bifurcaria bifurcata is a seaweed of the Order Fucales(Ochrophyta,Phaeophyceae)that can be found all year round along the Portuguese Atlantic *** it is considered edible in some countries,its biotechnological potential has not yet been assessed in detail and here we report its antimicrobial potential against human dermatophyte *** samples were harvested from Baleal Island(Peniche,Portugal)harvested in winter(BbPe);from Aguda Beach(Arcozelo,Vila Nova de Gaia,Portugal),harvested in autumn(BbAg)and a sample obtained by culturing the Aguda sample under laboratory conditions(BbLC).A broth macrodilution assay was applied to determine the MIC(minimum inhibitory concentration)and MLC(minimum lethal concentration)of the *** *** show that the BbPe MeOH extracts were the most effective and had higher antifungal activity against all the tested dermatophyte strains than the BbLC and BaAg extracts[Epidermophyton floccosum FF9(100–200μg/mL MIC;200μg/mL MLC),Microsporum canis FF1(400μg/mL MIC;≥400μg/mL MLC),Trichophyton mentagrophytes FF7(100μg/mL MIC;>800μg/mL MLC),*** CECT 2908(800μg/mL MIC;≥800μg/mL MLC),*** *** CECT 2958(800μg/mL MIC;≥800μg/mL MLC),*** CECT 2794(200μg/mL MIC;≥400μg/mL MLC)].In fact,only *** FF9 was sensitive to BbAg and BbLC MeOH *** our knowledge,this is the first report of antifungal activity of *** against human dermatophyte fungi.

关键词： seaweed Bifurcaria bifurcata bioactivity antifungal dermatophytes minimum inhibitory concentration minimum lethal concentration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Biologically active components for cosmeceutical use extracted from Chaetomorpha aerea

引用

Traditional Medicine Research 2022年第4期7卷 37-48页

作者： Haresh S.Kalasariya leonel pereira Nikunj B.Patel Microbiology Department Sankalchand Patel UniversityVisnagar 384315India University of Coimbra MARE-Marine and Environmental Sciences CentreDepartment of Life SciencesCoimbra 3000-456Portugal

Background:The utilization of seaweed-based biologically active components in cosmeceutical formulations has been extensively rising due to skin health-promoting *** have varieties of biologically active components and possess potential benefits in skincare ***:Hence,the present study was done to characterize the bioactive constituents of green seaweed Chaetomorpha aerea by using the gas chromatography coupled with high-resolution mass spectrometry technique in ethanolic and methanolic extracts for presenting its cosmetic ***:In analysis,a total of twenty-one different components were found in both the *** cosmetic potentials have been studied based on previous research *** addition,we characterized 9-octadecenoic acid[Z]-,phenylmethyl ester which belongs to benzyloxycarbonyls *** compound exhibits promising applications in the cosmeceutical *** compound has a target peak percentage area(16.64%)with a retention time(39.1 min)in methanolic ***:The incorporation of seaweed-based bioactive components in cosmetics has been extensively growing due to its skin health-promoting effects.

关键词： GC-HRMS octadecenoic acid chemical characterization cosmeceutical applications

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Therapeutic and nutritional uses of marine algae:a pharmacy in the ocean

引用

Traditional Medicine Research 2022年第3期7卷 124-127页

作者： leonel pereira Department of Life Sciences MARE-Marine and Environmental Sciences CentreUniversity of CoimbraCoimbra 3001-456Portugal

Background Oceans and seas constitute more than 70%of planet Earth,representing the largest habitat on Earth and a prolific resource for organisms with high biological and chemical *** this huge area,less than 5%of the seafloor has been explored in any way and less than 0.01%has been studied in *** exploitation,due to technical limitations,began with the collection of organisms such as algae(micro and macro),sponges,corals,which have been shown to possess a wide variety of compounds with unique chemical structures^([1,2]).

关键词： Earth ocean constitute

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Seaweeds’nutraceutical and biomedical potential in cancer therapy:a concise review

引用

Journal of Cancer Metastasis and Treatment 2021年第1期7卷 189-212页

作者： João Cotas Diana Pacheco Ana M.M.Gonçalves Paulo Silva Loïc G.Carvalho leonel pereira University of Coimbra MARE-Marine and Environmental Sciences CentreDepartment of Life SciencesCalçada Martim de FreitasCoimbra 3000-456Portugal Department of Biology and CESAM University of AveiroAveiro 3810-193Portugal UCIBIO-REQUIMTE Departamento de QuímicaFaculdade de Ciências e TecnologiaUniversidade Nova de LisboaCaparica 2829-516Portugal The James Hutton Institute Dundee DD25DAScotlandUK Heriot-Watt University Edinburgh EH144ASScotlandUK.

Seaweeds have been a food source since ancient times(600 BC)and are still widely used in Asia,mainly in traditional Chinese medicine and Japanese folk ***,seaweed compounds and extracts have been gaining interest from the biomedical and pharmaceutical market *** have been referenced as feasible solutions in finding new potential compounds and therapies in prevention,control,and reduction of cancer development due to the multirole of some bioactive components(e.g,phenolic compounds and sulphated polysaccharides).Moreover,seaweeds are rich in important health-promoting molecules[such as poly and highly unsaturated fatty acids(PUFAs and HUFAs),essential amino acids,vitamins,and dietary fibers]and minerals(calcium,iron,iodine,magnesium,phosphorus,potassium,zinc,copper,manganese,selenium,and fluoride).In this review,the potential therapeutic effects of seaweed in the prevention and treatment of cancer are approached,as well as nutraceutical properties of seaweed to promote cell homeostasis.

关键词： Seaweed compounds nutraceutical bioactive molecules cancer prevention cancer treatment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Exogenous Application of Abscisic Acid Induce Accumulation of Anthocyanins and Phenolic Compounds of the ‘Rubi’ Grape

引用

American Journal of Plant Sciences 2017年第10期8卷 2422-2432页

作者： Francisco José Domingues Neto Adilson Pimentel Junior Cristine Vanz Borges Silvia Regina Cunha Daniel Callili Giuseppina Pace pereira Lima Sergio Ruffo Roberto Sarita leonel Marco Antonio Tecchio School of Agriculture S&#227 o Paulo State University (UNESP) Botucatu Brazil Institute of Biosciences S&#227 o Paulo State University (UNESP) Botucatu Brazil Department of Agronomy Londrina State University (UEL) Londrina Brazil

The abscisic acid (ABA) is related to the formation of certain polyphenols, such as anthocyanin, improving the nutritional and commercial quality of the red grapes. In this study, we verified whether the exogenous application of?S-ABA favors the accumulation of anthocyanin, the total phenolic compounds and the antioxidant activity of the?‘Rubi’?grape. The experiment was performed during the cycle 2014/2015 with the?‘Rubi’?vine (Vitis vinifera?L.) grafted in the rootstock 420-A. The experimental design was composed of randomized blocks, with four treatments and six blocks, in a total of 24 experimental parcels, constituted of one plant each. We used the?S-ABA isomer in different concentrations and times of application, 400 mg·L-1?S-ABA in the beginning of the ripening (BR);400 mg·L-1?at BR + 200 mg·L-1?at 25 days after first application (DAFA);400 mg·L-1at BR + 400 mg·L-1?at 25 DAFA;besides the control (0 mg·L-1). After 40 days of the first application, the samples were harvested and we verified that the?S-ABA induced the accumulation of anthocyanins and total phenolic compounds in the?‘Rubi’?grape. From these results we can recommend two applications of?S-ABA, 400 mg·L-1?at BR + 200 mg·L-1?at 25 DAFA.

关键词： Vitis vinifera S-ABA Table Grape Bioactives Compounds

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：