Objective:To study the antioxidant and anti-inflammatory activity of Butia capitata(B.capitata)leaf extracts along with phytochemical analysis of the proposed bioactive constituents.Methods:Different successive extrac...Objective:To study the antioxidant and anti-inflammatory activity of Butia capitata(B.capitata)leaf extracts along with phytochemical analysis of the proposed bioactive constituents.Methods:Different successive extracts of B.capitata Becc.leaves were prepared with selective organic solvents and screened for their anti-inflammatory activities in tested animals and invitro antioxidant effect.An extensive phytochemical investigation of the bioactive extracts through paper chromatography,thin layer chromatography,column chromatography,gasliquid chromatography(GLC),high pressure liquid chromatography and spectral analysis.GCMass,ultraviolet,hydrogen and carbon nuclear magnetic resonance,electron ionization-mass spectrometry,heteronuclear multiple bond correlation and heteronuclear multiple quantum correlation were carried out Results:Results showed that different extracts possess promising antioxidant effect and significant anti-inflammatory activity with variable degrees.The results of the phytochemical investigation of the bioactive extracts revealed the presence of volatile substances,lipoidal matter,α-tocopherol,free sugars,polysaccharides and flavonoidal compounds.Conclusions:B.capitata leaf extracts were shown to possess variable antioxidant effect,the most promising was methanol extract Both polar and non polar extracts were proved to have anti-inflammatory activity,the non polar extract was superior in this respect The bioactivity of the extracts was ascribed to the presence of flavonoids,sterols andα-tocopherol.展开更多
The aromatic constituents in fruit and juice of yatay palm(Butia yatay(Mart.) Becc.) were extracted and analyzed by HSSE-GCMS and SBSE-GC-MS techniques.139 and 150 aromatic constituents were detected,79 and 82 chemica...The aromatic constituents in fruit and juice of yatay palm(Butia yatay(Mart.) Becc.) were extracted and analyzed by HSSE-GCMS and SBSE-GC-MS techniques.139 and 150 aromatic constituents were detected,79 and 82 chemical compounds which occupied 95.231% and 92.101% of total relative content were identified in fruit and juice of yatay palm respectively.The fruit contained esters(85.718%),alcohols(3.900%),hydrocarbons(1.614%),carboxylic acids(1.350%),aldehydes(1.009%) and ketones(0.593%),and the major constituent was ethyl hexanoate(58.062%).The juice contained esters(59.831%),carboxylic acids(10.556%),alcohols(9.653%),hydrocarbons(3.078%),aldehydes(2.684%) and ketones(1.841%),the major constituent was ethyl hexanoate(31.202%),too.展开更多
用顶空吸着萃取HSSE(Head Space Sorptive Extraction)-GC-MS联用技术分析亚泰果冻棕的香气成分,检测出139种成分,鉴定出占总成分95.231%的79种成分,分别由酯(85.716%)、醇(3.900%)、烃(1.614%)、酸(1.350%)、醛(1.009%)、酮(0.593%)等...用顶空吸着萃取HSSE(Head Space Sorptive Extraction)-GC-MS联用技术分析亚泰果冻棕的香气成分,检测出139种成分,鉴定出占总成分95.231%的79种成分,分别由酯(85.716%)、醇(3.900%)、烃(1.614%)、酸(1.350%)、醛(1.009%)、酮(0.593%)等化合物组成。主要成分为己酸乙酯,占总成分的58.062%。展开更多
Butia palm forests are considered unique due to their aesthetic value, high biodiversity level and historical, archaeological and cultural value. The lack of regeneration of butia palms caused by cattle overgrazing an...Butia palm forests are considered unique due to their aesthetic value, high biodiversity level and historical, archaeological and cultural value. The lack of regeneration of butia palms caused by cattle overgrazing and natural grasslands replacement by agriculture endangers these palm forests. The aim of this work is to provide information for the proposal of a conservation area in this rural landscape within the framework of sustainable development. This work was developed within the context of a Geographic Information System with thematic information on palm forest density levels, soils, land use aptitude and rural registers. Field surveys were conducted to record the presence of plant species and genetic resources in different vegetation units. The main category of soil cover was natural grasslands, followed by native forests, wetlands and palm forests. Palm forests grow mainly on soil units with poor to rather poor drainage and on arable or non-arable lands under special conditions. We identified 212 farms where the palm forest is found, a high diversity of vegetation units, the presence of 302 native taxa of plants and a significant number of plant genetic resources for various uses. For the designation of a conservation area, we propose 20 priority farms that will ensure that palm forests are well represented regarding ecosystem diversity. We consider the creation of a Protected Landscape, a State Park or a GIAHS to be the best alternatives so as to protect this unique multifunctional landscape.展开更多
基金Supported by National Research Centre,Cairo,Egypt(Fifth plan of National Research Centre,Grant No:1/8/5)
文摘Objective:To study the antioxidant and anti-inflammatory activity of Butia capitata(B.capitata)leaf extracts along with phytochemical analysis of the proposed bioactive constituents.Methods:Different successive extracts of B.capitata Becc.leaves were prepared with selective organic solvents and screened for their anti-inflammatory activities in tested animals and invitro antioxidant effect.An extensive phytochemical investigation of the bioactive extracts through paper chromatography,thin layer chromatography,column chromatography,gasliquid chromatography(GLC),high pressure liquid chromatography and spectral analysis.GCMass,ultraviolet,hydrogen and carbon nuclear magnetic resonance,electron ionization-mass spectrometry,heteronuclear multiple bond correlation and heteronuclear multiple quantum correlation were carried out Results:Results showed that different extracts possess promising antioxidant effect and significant anti-inflammatory activity with variable degrees.The results of the phytochemical investigation of the bioactive extracts revealed the presence of volatile substances,lipoidal matter,α-tocopherol,free sugars,polysaccharides and flavonoidal compounds.Conclusions:B.capitata leaf extracts were shown to possess variable antioxidant effect,the most promising was methanol extract Both polar and non polar extracts were proved to have anti-inflammatory activity,the non polar extract was superior in this respect The bioactivity of the extracts was ascribed to the presence of flavonoids,sterols andα-tocopherol.
文摘The aromatic constituents in fruit and juice of yatay palm(Butia yatay(Mart.) Becc.) were extracted and analyzed by HSSE-GCMS and SBSE-GC-MS techniques.139 and 150 aromatic constituents were detected,79 and 82 chemical compounds which occupied 95.231% and 92.101% of total relative content were identified in fruit and juice of yatay palm respectively.The fruit contained esters(85.718%),alcohols(3.900%),hydrocarbons(1.614%),carboxylic acids(1.350%),aldehydes(1.009%) and ketones(0.593%),and the major constituent was ethyl hexanoate(58.062%).The juice contained esters(59.831%),carboxylic acids(10.556%),alcohols(9.653%),hydrocarbons(3.078%),aldehydes(2.684%) and ketones(1.841%),the major constituent was ethyl hexanoate(31.202%),too.
文摘用顶空吸着萃取HSSE(Head Space Sorptive Extraction)-GC-MS联用技术分析亚泰果冻棕的香气成分,检测出139种成分,鉴定出占总成分95.231%的79种成分,分别由酯(85.716%)、醇(3.900%)、烃(1.614%)、酸(1.350%)、醛(1.009%)、酮(0.593%)等化合物组成。主要成分为己酸乙酯,占总成分的58.062%。
文摘Butia palm forests are considered unique due to their aesthetic value, high biodiversity level and historical, archaeological and cultural value. The lack of regeneration of butia palms caused by cattle overgrazing and natural grasslands replacement by agriculture endangers these palm forests. The aim of this work is to provide information for the proposal of a conservation area in this rural landscape within the framework of sustainable development. This work was developed within the context of a Geographic Information System with thematic information on palm forest density levels, soils, land use aptitude and rural registers. Field surveys were conducted to record the presence of plant species and genetic resources in different vegetation units. The main category of soil cover was natural grasslands, followed by native forests, wetlands and palm forests. Palm forests grow mainly on soil units with poor to rather poor drainage and on arable or non-arable lands under special conditions. We identified 212 farms where the palm forest is found, a high diversity of vegetation units, the presence of 302 native taxa of plants and a significant number of plant genetic resources for various uses. For the designation of a conservation area, we propose 20 priority farms that will ensure that palm forests are well represented regarding ecosystem diversity. We consider the creation of a Protected Landscape, a State Park or a GIAHS to be the best alternatives so as to protect this unique multifunctional landscape.
