Since the recent discovery of barberry(Berberis spp.)as an alternate host for the stripe rust pathogen Puccinia striiformis,many Chinese Berberis species have been identified as alternate hosts for P.striiformis f.sp....Since the recent discovery of barberry(Berberis spp.)as an alternate host for the stripe rust pathogen Puccinia striiformis,many Chinese Berberis species have been identified as alternate hosts for P.striiformis f.sp.tritici.However,little is known about Berberis species and their distribution in wheat-growing regions in Xinjiang,China,where stripe rust is endemic.As the largest province or autonomous region,Xinjiang represents a relatively independent epidemic region for wheat stripe rust in China.In this study,we con ducted a survey of barberry plants in the main wheat-growi ng areas of Xinjiang.We iden tified three Berberis species,B.heteropoda,B.nummularia and B.kaschgarica,and con firmed their roles as potential alternate hosts for P.striiformis f.sp.tritici in the laboratory.展开更多
A Pt/γ-Al2O3-C heterogeneous catalyst with improved catalytic performance was successfully prepared. Bayberry talmin（BT）, an abundant natural plant polyphenol, was utilized to modifiy the surface of the Pt/γ-Al2O3...A Pt/γ-Al2O3-C heterogeneous catalyst with improved catalytic performance was successfully prepared. Bayberry talmin（BT）, an abundant natural plant polyphenol, was utilized to modifiy the surface of the Pt/γ-Al2O3 matrix and then stabilize Pt nanoparticles（NPs）. The catalyst was systematically and specifically characterized by a collec- tion of analytic tools including XRD, XPS, FTIR, TEM, and TG. It was found that the Pt NPs were envenly dispered on the γ-Al2O3-C matrix. Meanwhile, when the catalyst was applied for selective hydrogenation of cilmamalde- hyde（CMA） in the presence of KOH promoter in solvent, excellent catalytic performance was obtained. The selecti- vity to cinnamyl alcohol（CMO） reached 97.88% with 88.45% CMA conversion within 30 min in the presence of 0.037 mol/L KOH, without significant loss of catalytic activity even under cyclic measurements for 5 times. The excelleut catalytic performances should be ascribed predominantly to the uniform and stable dispersion ofPt NPs on the γ-Al2O3-C matrix and the excellent heat stability of BT.展开更多
Seedless barberry (Berberis vulgaris L. var. asperma) is one of the few unique crops grown only in Iran and southkhorasan. Barberry is a well known medicinal plant in Iran and has been widely used as food additive. Th...Seedless barberry (Berberis vulgaris L. var. asperma) is one of the few unique crops grown only in Iran and southkhorasan. Barberry is a well known medicinal plant in Iran and has been widely used as food additive. The comprehensive survey of fungal contamination of barberry was undertaken in the market of Birjand, during March to June at 2012. Fungal infections of barberry were studied in thirty samples. Among these, Aspergillus spp., Penicillium spp. and Mucor spp. were major contaminants also the results showed that 57% of barberry was infected and most fungal species related to Aspergillus spp. and penicillium spp. Therefore it needs to undertake the management practices.展开更多
[Objectives] To establish the quality standard of barberry branches. [Methods] Microscopic identification and thin layer identification were used to qualitatively identify barberry branches. Berberine content was dete...[Objectives] To establish the quality standard of barberry branches. [Methods] Microscopic identification and thin layer identification were used to qualitatively identify barberry branches. Berberine content was determined by HPLC method, and the content of water, total ash, acid insoluble ash and extract was detected according to the method of the Chinese Pharmacopoeia (2020 edition). [Results] The microscopic identification showed that the features were obvious, and stone cells, cork cells, epidermal cells, stomata, fibers and catheter with reticulated pores could be found. Berberine was detected in barberry branches by thin layer chromatography, and the characteristic spots were separated clearly. Moisture, total ash, and acid insoluble ash content shall not exceed 13%, 6%, and 3%, respectively, and extract content shall not be less than 10%. Berberine hydrochloride (C_(20)H_(18)ClNO_(4)) should be calculated in the branches of Berberis wilsonae Hemsley and Berberis aggregata C. K. Schneid., and berberine (C_(20)H_(17)NO_(4)) content should not be less than 0.05%. The linear relationship was good in the range of 0.002-0.240 mg/mL ( R^(2)=0.999 5). The average recovery was 89.63%, and RSD was 5.28%. [Conclusions] The method was simple, accurate and reproducible, and can be used for the quality control of barberry branches.展开更多
Objective:To investigate suppressive effects of barberry ingredients on macrophage.Methods:Barberry alcoholic and aqueous extracts were obtained and tested on macrophages and lipopolysaccharide-stimulated macrophages....Objective:To investigate suppressive effects of barberry ingredients on macrophage.Methods:Barberry alcoholic and aqueous extracts were obtained and tested on macrophages and lipopolysaccharide-stimulated macrophages.Nitric oxide levels were determined using Griess method and MTT assay which were done for evaluation of macrophage viability.Supernatant tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interleukin-12(IL-12)were measured by ELISA kits.Results:MTT reduction capability was the same in all groups,unless the group with higher doses of extracts(P<0.05).Both extracts suppressed nitric oxide production(P<0.05).TNF-αproduction were suppressed by low doses of both extracts and induced by aqueous extract(P<0.05).IL-6 release was suppressed and IL-12 was induced(P<0.05).Conclusions:This study showed anti-inflammatory functions of barberry’s ingredients on macrophages,and at the same time displayed a low cytotoxic effect.Changes in cytokine production was various as data shows decrease in TNF-αand IL-6 levels and induction in IL-12 released by macrophages.These data propose diverse medical use of barberry in treatment of different disorders but with more precision.展开更多
基金financially supported by the National Key R&D Program of China (2018YFD0200408, 2018YFD0200402)the Natural Science Basic Research Plan in Shaanxi Province of China (2017JM3006)+1 种基金the National Natural Science Foundation of China (3107164)the National Basic Research Program of China (2013CB127700)
文摘Since the recent discovery of barberry(Berberis spp.)as an alternate host for the stripe rust pathogen Puccinia striiformis,many Chinese Berberis species have been identified as alternate hosts for P.striiformis f.sp.tritici.However,little is known about Berberis species and their distribution in wheat-growing regions in Xinjiang,China,where stripe rust is endemic.As the largest province or autonomous region,Xinjiang represents a relatively independent epidemic region for wheat stripe rust in China.In this study,we con ducted a survey of barberry plants in the main wheat-growi ng areas of Xinjiang.We iden tified three Berberis species,B.heteropoda,B.nummularia and B.kaschgarica,and con firmed their roles as potential alternate hosts for P.striiformis f.sp.tritici in the laboratory.
基金Supported by the National Natural Science Foundation of China（No. 51173122）, the Foundation of the Education Department of Sichnan Province, China（No. 16ZA0049） and the Foundation of the Science and Technology Commission of Sichuan Province, China（No.2016JY0259）.
文摘A Pt/γ-Al2O3-C heterogeneous catalyst with improved catalytic performance was successfully prepared. Bayberry talmin（BT）, an abundant natural plant polyphenol, was utilized to modifiy the surface of the Pt/γ-Al2O3 matrix and then stabilize Pt nanoparticles（NPs）. The catalyst was systematically and specifically characterized by a collec- tion of analytic tools including XRD, XPS, FTIR, TEM, and TG. It was found that the Pt NPs were envenly dispered on the γ-Al2O3-C matrix. Meanwhile, when the catalyst was applied for selective hydrogenation of cilmamalde- hyde（CMA） in the presence of KOH promoter in solvent, excellent catalytic performance was obtained. The selecti- vity to cinnamyl alcohol（CMO） reached 97.88% with 88.45% CMA conversion within 30 min in the presence of 0.037 mol/L KOH, without significant loss of catalytic activity even under cyclic measurements for 5 times. The excelleut catalytic performances should be ascribed predominantly to the uniform and stable dispersion ofPt NPs on the γ-Al2O3-C matrix and the excellent heat stability of BT.
文摘Seedless barberry (Berberis vulgaris L. var. asperma) is one of the few unique crops grown only in Iran and southkhorasan. Barberry is a well known medicinal plant in Iran and has been widely used as food additive. The comprehensive survey of fungal contamination of barberry was undertaken in the market of Birjand, during March to June at 2012. Fungal infections of barberry were studied in thirty samples. Among these, Aspergillus spp., Penicillium spp. and Mucor spp. were major contaminants also the results showed that 57% of barberry was infected and most fungal species related to Aspergillus spp. and penicillium spp. Therefore it needs to undertake the management practices.
基金Supported by the National Key Research and Development Plan(2018YFC-06101)Sichuan Provincial Natural Science Foundation(2022NSFSC1605)+2 种基金Traditional Chinese Medicine(Ethnic Medicine)Standard Improvement of Sichuan Medical Products Administration(510201202102305)Leading Talents Support Plan of National Ethnic Affairs Commission in 2022Special Project for the University-Level Innovation Team in the Fundamental Research Funds for the Central Universities(ZYN2022067).
文摘[Objectives] To establish the quality standard of barberry branches. [Methods] Microscopic identification and thin layer identification were used to qualitatively identify barberry branches. Berberine content was determined by HPLC method, and the content of water, total ash, acid insoluble ash and extract was detected according to the method of the Chinese Pharmacopoeia (2020 edition). [Results] The microscopic identification showed that the features were obvious, and stone cells, cork cells, epidermal cells, stomata, fibers and catheter with reticulated pores could be found. Berberine was detected in barberry branches by thin layer chromatography, and the characteristic spots were separated clearly. Moisture, total ash, and acid insoluble ash content shall not exceed 13%, 6%, and 3%, respectively, and extract content shall not be less than 10%. Berberine hydrochloride (C_(20)H_(18)ClNO_(4)) should be calculated in the branches of Berberis wilsonae Hemsley and Berberis aggregata C. K. Schneid., and berberine (C_(20)H_(17)NO_(4)) content should not be less than 0.05%. The linear relationship was good in the range of 0.002-0.240 mg/mL ( R^(2)=0.999 5). The average recovery was 89.63%, and RSD was 5.28%. [Conclusions] The method was simple, accurate and reproducible, and can be used for the quality control of barberry branches.
文摘Objective:To investigate suppressive effects of barberry ingredients on macrophage.Methods:Barberry alcoholic and aqueous extracts were obtained and tested on macrophages and lipopolysaccharide-stimulated macrophages.Nitric oxide levels were determined using Griess method and MTT assay which were done for evaluation of macrophage viability.Supernatant tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interleukin-12(IL-12)were measured by ELISA kits.Results:MTT reduction capability was the same in all groups,unless the group with higher doses of extracts(P<0.05).Both extracts suppressed nitric oxide production(P<0.05).TNF-αproduction were suppressed by low doses of both extracts and induced by aqueous extract(P<0.05).IL-6 release was suppressed and IL-12 was induced(P<0.05).Conclusions:This study showed anti-inflammatory functions of barberry’s ingredients on macrophages,and at the same time displayed a low cytotoxic effect.Changes in cytokine production was various as data shows decrease in TNF-αand IL-6 levels and induction in IL-12 released by macrophages.These data propose diverse medical use of barberry in treatment of different disorders but with more precision.
