For searching biological material for heavy metal removal of waste-water, using macrofungus Auricularia polytricha as biosorbent for Cu^2＋ and Pb^2＋ removal was investigated. After shaking and biosorbing Cu^2＋ and ...For searching biological material for heavy metal removal of waste-water, using macrofungus Auricularia polytricha as biosorbent for Cu^2＋ and Pb^2＋ removal was investigated. After shaking and biosorbing Cu^2＋ and Pb^2＋ in solution by biosorbents, the filtrates were tested by AAS and the adsorbed quantity of Cu^2＋ and Pb^2＋ was calculated. The biosorbents were effective in removal of Cu^2＋ and Pb^2＋ on the biosorbents that showed a high- est value around pH 5-6. The biosorption rate of Cu^2＋ and Pb^2＋ on A. polytricha biomass decreased with increasing the initial concentration of Cu^2＋ and Pb^2＋ in the medium. The biosorption of Cu^2＋ and Pb^2＋ on the biomasses follows pseudo-second order kinetics. The determined maximum biosorption capacities presented by the fungus biomass were 3.34 and 13.03 mg·g^-1 dry weight for Cu^2＋ and Pb^2＋, respectively by the biosorption equilibrium with Langmuir adsorption isotherm. According to the whole data analysis in each experiment of studying Cu^2＋ and Pb^2＋ biosorption including condition factors and adsorption isotherm, the adsorbed capacity of Pb^2＋ by A. polytricha biomass was bigger than Cu^2＋. The biosorption by A. polytricha was most effective when pH 5-6. The biosorbents are suitable for low Cu^2＋ and Pb^2＋ concentration waste-water, especially for Pb^2＋ removal.展开更多
Auricularia auricula(AA)and Auricularia polytricha(AP)are popular edible fungi.This study successfully produced hypoglycemic polysaccharides from un-smashed or smashing and sieving(through a 10-mesh sieve)AA and AP(te...Auricularia auricula(AA)and Auricularia polytricha(AP)are popular edible fungi.This study successfully produced hypoglycemic polysaccharides from un-smashed or smashing and sieving(through a 10-mesh sieve)AA and AP(termed as AAP/AAP-10 and APP/APP-10)via scalable processes(water extraction,ethanolic precipitation and deproteinization).This is the first report to compare the effectiveness of AAP and APP in combating streptozotocin-induced oxidative stress and diabetes-related changes in mice(body weight,fasting blood glucose,serum insulin,proinflammatory mediator and cytokines,oxidative stress-related products,antioxidant enzymes).APP and AAP with different molecular weights and monosaccharide molar ratios could be therapeutic options for diabetes with a low dose(100 mg/kg/day)likely working better.At the same dose,APP generally performed more effective than AAP,and AAP-10/APP-10 seemed slightly more beneficial than AAP/APP.One mechanism underlying these antidiabetic functions might involve the NF-κB and associated signalling pathways.AP is cheaper than AA,thereby representing a favorable source of functional polysaccharides.展开更多
Auricularia polytricha possesses hypolipidemic effects and decreases lipid accumulation,leading to potential food additives for functional food processing.In this research,we explored the potential effects of A.polytr...Auricularia polytricha possesses hypolipidemic effects and decreases lipid accumulation,leading to potential food additives for functional food processing.In this research,we explored the potential effects of A.polytricha noodles on hyperlipidemia and gut microbiota dysbiosis,and elucidated their possible regulatory mechanisms on lipid metabolism in high-fat diet(HFD)mice.A.polytricha n oodles treatment signifi cantly(P<0.05)reduced body weight gain,hyperlipidemia and liver fat accumulation.Meanwhile,A.polytricha noodles decreased the levels of serum total cholesterol(TC),total triglyceride(TG)and low-density lipoprotein cholesterol(LDL-C)compared with the HFD group.Furthermore,A.polytricha noodles could enrich the diversity of gut microbiota by decreasing the ratio of Firmicutes to Bacteroidetes as well as the relative abundance of Deferribacteres and increased the relative abundance of Verrucomicrobia,which might contribute to the prevention of hyperlipidemia.This study indicated that A.polytricha noodles could modulate the gut microbiota and prevent hyperlipidemia and liver fat accumulation induced by HFD.展开更多
Flammulina velutipes and Auricularia polytricha are two popular dietary mushrooms,especially in the Northeast of China.They have revealed many pharmacological effects due to their bioactive compounds,but their possibl...Flammulina velutipes and Auricularia polytricha are two popular dietary mushrooms,especially in the Northeast of China.They have revealed many pharmacological effects due to their bioactive compounds,but their possible mechanism of action involved in inflammation remains poorly known.Therefore,Inflammatory bowel disease(IBD)which is a chronic disease and progressive inflammation in the gastrointestinal tract were used to evaluate their anti-inflammatory and modulatory properties on the intestinal microbiota via the signaling pathways involved by oral administration of F.velutipes(FVE)and A.polytricha(APE).Mice were daily received 3%DSS in the drinking water followed by the daily administration of FVE and APE.The food consumption,weight variation and DAI score were assessed during the experiment and inflammatory parameters,mRNA and protein expressions to determine the possible signaling pathways involved,and the gut microbiota from the cecum by high-throughput sequencing.Data showed that APE and FVE improved clinical symptoms,inflammatory cytokines and oxidative markers.They also attenuated the mRNA and proteins expressions in colon tissue.Moreover,APE and FVE regulated DSS-induced intestinal dysbiosis and stimulated the SCFAs production.Overall,APE and FVE could improve DSS-induced IBD in mice suggesting that they represent novels therapeutic drugs and could be used as prebiotic to modulate the gut microbiota and preserve intestinal integrity.展开更多
描述了云南省东部陆良县玉山竹属滑竹的新亚种——陆良玉山竹Yushania polytricha ssp.nana Hsueh ex F.Du et M.W.Xu。其与原亚种滑竹Y.polytricha Hsueh et Yi区别在于个体更矮小,秆更短,秆柄更细;箨片毛更少,叶耳边缘具黄褐色纤毛;...描述了云南省东部陆良县玉山竹属滑竹的新亚种——陆良玉山竹Yushania polytricha ssp.nana Hsueh ex F.Du et M.W.Xu。其与原亚种滑竹Y.polytricha Hsueh et Yi区别在于个体更矮小,秆更短,秆柄更细;箨片毛更少,叶耳边缘具黄褐色纤毛;叶片更小,小横脉清晰。新亚种仅分布于滇东陆良县龙海山及周边海拔2400 m以上的干燥生境,与滑竹分布于滇中、滇西明显不同。展开更多
基金the Research Foundation of Sichuan Department of Science and Technology(04SG023-006-05) Post Doctorial Program of Institute of Mountain Hazards and Environment, CAS
文摘For searching biological material for heavy metal removal of waste-water, using macrofungus Auricularia polytricha as biosorbent for Cu^2＋ and Pb^2＋ removal was investigated. After shaking and biosorbing Cu^2＋ and Pb^2＋ in solution by biosorbents, the filtrates were tested by AAS and the adsorbed quantity of Cu^2＋ and Pb^2＋ was calculated. The biosorbents were effective in removal of Cu^2＋ and Pb^2＋ on the biosorbents that showed a high- est value around pH 5-6. The biosorption rate of Cu^2＋ and Pb^2＋ on A. polytricha biomass decreased with increasing the initial concentration of Cu^2＋ and Pb^2＋ in the medium. The biosorption of Cu^2＋ and Pb^2＋ on the biomasses follows pseudo-second order kinetics. The determined maximum biosorption capacities presented by the fungus biomass were 3.34 and 13.03 mg·g^-1 dry weight for Cu^2＋ and Pb^2＋, respectively by the biosorption equilibrium with Langmuir adsorption isotherm. According to the whole data analysis in each experiment of studying Cu^2＋ and Pb^2＋ biosorption including condition factors and adsorption isotherm, the adsorbed capacity of Pb^2＋ by A. polytricha biomass was bigger than Cu^2＋. The biosorption by A. polytricha was most effective when pH 5-6. The biosorbents are suitable for low Cu^2＋ and Pb^2＋ concentration waste-water, especially for Pb^2＋ removal.
基金the financial support from National key Technologies R&D Program for 13th Five-year Plan(2016YFD0400803)National Natural Science Foundation of China(No.31201416)Science and Technology Plan of Guangdong Province(2017ZD093).
文摘Auricularia auricula(AA)and Auricularia polytricha(AP)are popular edible fungi.This study successfully produced hypoglycemic polysaccharides from un-smashed or smashing and sieving(through a 10-mesh sieve)AA and AP(termed as AAP/AAP-10 and APP/APP-10)via scalable processes(water extraction,ethanolic precipitation and deproteinization).This is the first report to compare the effectiveness of AAP and APP in combating streptozotocin-induced oxidative stress and diabetes-related changes in mice(body weight,fasting blood glucose,serum insulin,proinflammatory mediator and cytokines,oxidative stress-related products,antioxidant enzymes).APP and AAP with different molecular weights and monosaccharide molar ratios could be therapeutic options for diabetes with a low dose(100 mg/kg/day)likely working better.At the same dose,APP generally performed more effective than AAP,and AAP-10/APP-10 seemed slightly more beneficial than AAP/APP.One mechanism underlying these antidiabetic functions might involve the NF-κB and associated signalling pathways.AP is cheaper than AA,thereby representing a favorable source of functional polysaccharides.
基金This work was financially supported by the China Agriculture Research System(CARS-20)the Jiangsu Provincial Key Research and Development Program(BE2019323).
文摘Auricularia polytricha possesses hypolipidemic effects and decreases lipid accumulation,leading to potential food additives for functional food processing.In this research,we explored the potential effects of A.polytricha noodles on hyperlipidemia and gut microbiota dysbiosis,and elucidated their possible regulatory mechanisms on lipid metabolism in high-fat diet(HFD)mice.A.polytricha n oodles treatment signifi cantly(P<0.05)reduced body weight gain,hyperlipidemia and liver fat accumulation.Meanwhile,A.polytricha noodles decreased the levels of serum total cholesterol(TC),total triglyceride(TG)and low-density lipoprotein cholesterol(LDL-C)compared with the HFD group.Furthermore,A.polytricha noodles could enrich the diversity of gut microbiota by decreasing the ratio of Firmicutes to Bacteroidetes as well as the relative abundance of Deferribacteres and increased the relative abundance of Verrucomicrobia,which might contribute to the prevention of hyperlipidemia.This study indicated that A.polytricha noodles could modulate the gut microbiota and prevent hyperlipidemia and liver fat accumulation induced by HFD.
基金supported by Science and Technology Project of Jilin Education Department(No.JJKH20190917KJ).
文摘Flammulina velutipes and Auricularia polytricha are two popular dietary mushrooms,especially in the Northeast of China.They have revealed many pharmacological effects due to their bioactive compounds,but their possible mechanism of action involved in inflammation remains poorly known.Therefore,Inflammatory bowel disease(IBD)which is a chronic disease and progressive inflammation in the gastrointestinal tract were used to evaluate their anti-inflammatory and modulatory properties on the intestinal microbiota via the signaling pathways involved by oral administration of F.velutipes(FVE)and A.polytricha(APE).Mice were daily received 3%DSS in the drinking water followed by the daily administration of FVE and APE.The food consumption,weight variation and DAI score were assessed during the experiment and inflammatory parameters,mRNA and protein expressions to determine the possible signaling pathways involved,and the gut microbiota from the cecum by high-throughput sequencing.Data showed that APE and FVE improved clinical symptoms,inflammatory cytokines and oxidative markers.They also attenuated the mRNA and proteins expressions in colon tissue.Moreover,APE and FVE regulated DSS-induced intestinal dysbiosis and stimulated the SCFAs production.Overall,APE and FVE could improve DSS-induced IBD in mice suggesting that they represent novels therapeutic drugs and could be used as prebiotic to modulate the gut microbiota and preserve intestinal integrity.
文摘描述了云南省东部陆良县玉山竹属滑竹的新亚种——陆良玉山竹Yushania polytricha ssp.nana Hsueh ex F.Du et M.W.Xu。其与原亚种滑竹Y.polytricha Hsueh et Yi区别在于个体更矮小,秆更短,秆柄更细;箨片毛更少,叶耳边缘具黄褐色纤毛;叶片更小,小横脉清晰。新亚种仅分布于滇东陆良县龙海山及周边海拔2400 m以上的干燥生境,与滑竹分布于滇中、滇西明显不同。
