Objective To establish a RP-HPLC fingerprinting analysis method for quality evaluation and control of the four variants of Chrysanthemi Morifoli Flos.Methods RP-HPLC was used to establish the fingerprinting method.Res...Objective To establish a RP-HPLC fingerprinting analysis method for quality evaluation and control of the four variants of Chrysanthemi Morifoli Flos.Methods RP-HPLC was used to establish the fingerprinting method.Results Despite of the similarity in terms of holistic HPLC chromatograms,the four variants of Chrysanthemi Morifoli Flos exhibit characteristic fingerprints and can be readily recognized by similarity clusters.Conclusion A simple and reliable HPLC fingerprinting method has been developed and validated to authenticate the four variants of Chrysanthemi Morifoli Flos,providing a scientific basis for quality control of Chrysanthemi Morifoli Flos.展开更多
以菊花(Flos Chrysanthemi)、桑(Morus alba L.)叶和优质奶粉为原料,配以蔗糖,研究了发酵生产天然保健型酸奶的工艺条件以及桑菊提取液的制备方法,并对产品质量作出评价。通过单因素试验和正交试验确定了桑菊酸奶发酵的最佳工艺条件为:...以菊花(Flos Chrysanthemi)、桑(Morus alba L.)叶和优质奶粉为原料,配以蔗糖,研究了发酵生产天然保健型酸奶的工艺条件以及桑菊提取液的制备方法,并对产品质量作出评价。通过单因素试验和正交试验确定了桑菊酸奶发酵的最佳工艺条件为:桑、菊提取液添加量25%(桑叶提取液10%、菊花提取液15%)(V/V),蔗糖添加量7%(W/V),凝固剂CMC-Na添加量0.1%(W/V),接种量5%(保加利亚乳杆菌2%、嗜热链球菌3%)(V/V)。展开更多
The effect of lanthanum on the growth and extracellular enzyme activity of Erwinia chrysanthemi(Ech) was studied. Lanthanum inhibited the growth of Ech in solid culture at the concentration of 50, 100, 150, 200, 250, ...The effect of lanthanum on the growth and extracellular enzyme activity of Erwinia chrysanthemi(Ech) was studied. Lanthanum inhibited the growth of Ech in solid culture at the concentration of 50, 100, 150, 200, 250, 300 and 350 mgL-1, and the inhibition increased with the increase of the RE concentration. The formation of colony delayed and the diameter of colony decreased. Lanthanum stimulated the growth of Ech within 24h when the lanthanum concentration was less than 200 mgL-1 in liquid medium, but significantly inhibited the growth of Ech with the increase of lanthanum concentration and culture time. When the concentration was higher than 350 mgL-1, the growth of Ech was inhibited completely both in solid and liquid culture. The extracellular enzyme acitivity of Ech was affected by lanthanum at 200 mgL-1. The activity of cellulose was promoted more than that of protease but the activity of pectinase was decreased. The maceration to potato tuber tissue decreased when the cell free filtrate was tr展开更多
Objective:The purpose of this study is to investigate the anti-diabetic effects of linarin,a flavonoid extracted from Chrysanthemi Indici Flos(CIF),and its potential mechanisms.Methods:The effects of linarin on cell v...Objective:The purpose of this study is to investigate the anti-diabetic effects of linarin,a flavonoid extracted from Chrysanthemi Indici Flos(CIF),and its potential mechanisms.Methods:The effects of linarin on cell viability and glucose consumption in Hep G2 cells were measured.Meanwhile,monosodium glutamate(MSG) mouse model was constructed to monitor the changes of insulin tolerance,glucose tolerance,triglyceride and cholesterol.The protein expression levels of pAMPK,p-ACC,PEPCK and p-GS were detected by Western blot.Results:Linarin could increase the relative glucose consumption of Hep G2 cells,improve insulin tolerance and glucose tolerance,and decrease the levels of triglyceride and cholesterol of MSG mice.Simultaneously,the expression levels of p-AMPK and p-ACC in Hep G2 cells and the liver tissue of MSG mice were increased,while the expression levels of PEPCK and p-GS were decreased after treatment with linarin.Conclusion:Insulin resistance could be ameliorated by linarin in type 2 diabetes,and its mechanism may be related to AMPK signaling pathway.展开更多
Pectobacterium chrysanthemi is one of the main pathogens of soft rot disease of Amorphophallus konjac.The bacteriostatic effect of extracts from 10 kinds of traditional Chinese medicine and garlic on Pectobacterium ch...Pectobacterium chrysanthemi is one of the main pathogens of soft rot disease of Amorphophallus konjac.The bacteriostatic effect of extracts from 10 kinds of traditional Chinese medicine and garlic on Pectobacterium chrysanthemi was studied in this experiment.The results showed that the extracts of Coptis chinensis,garlic,Scutellaria baicalensis,Mume Fructus and Bupleurum had significant bacteriostatic effect.Among them,Coptis chinensis and garlic had the best bacteriostatic effect on Pectobacterium chrysanthemi,and the diameter of inhibition zone was 2.27 and 2.19 cm,respectively,followed by Scutellaria baicalensis,with the diameter of inhibition zone of 1.68 cm.The extracts of Coptis chinensis,Scutellaria baicalensis and garlic with good bacteriostatic effect were diluted by double dilution method,and the bacteriostatic effect was determined.The results showed that 2-fold dilution of Coptis chinensis and 2-fold and 4-fold dilution of Scutellaria baicalensis had significant bacteriostatic effect,but the bacteriostatic effect of garlic extract was not obvious after dilution.展开更多
A simplified method for determining 4 pyrethroid insecticides (Fenpropathrin, Cypermethrin, Fenvalirate, and Deltamethrin) in Chrysanthemi is described. Standards were fortified in to Chrysanthemi (5g) with two levels...A simplified method for determining 4 pyrethroid insecticides (Fenpropathrin, Cypermethrin, Fenvalirate, and Deltamethrin) in Chrysanthemi is described. Standards were fortified in to Chrysanthemi (5g) with two levels, 0.1-1 pp m the pyrethroid pesticides are extracted with petroleum ether and cleaned up by natural aluminum oxide. The extracts are analyzed by gas chromatography equipped with electron capture detector (ECD). Analysis of fortified Chrysanthemi (n = 3) shows recovery range from 99-102 % at 1 pp m level and 93-104 % at 0.1 pp m level. The coefficient of variation of the method at 1 st level was 0.12 and 0.14 for 2 ed level. The detection limits of the method ranged from 0.04pp b to 28 pp b. The method is rapid, sample, and sensitive and is applicable to the determination of Fenpropathrin, Cypermethrin, Fenvalirate, and Deltamethrin in Chrysanthemi.展开更多
Objective:To explore the molecular mechanism of Mimenghua Granules in treating dry eye based on network pharmacology and bioinformatics methods.Methods:Screening and prediction of possible blood-inducing active ingred...Objective:To explore the molecular mechanism of Mimenghua Granules in treating dry eye based on network pharmacology and bioinformatics methods.Methods:Screening and prediction of possible blood-inducing active ingredients and action target of Mimenghua Granules through Traditional Chinese Medicine Systems Pharmacology database and analysis platform;mining dry eye-related diseases through disease gene database,gene target;use the functional protein combined network database STRING to draw the component-target and disease-target PPI networks,and extract the intersection of these two networks;use DAVID database analysis to screen key targets and analyze the mechanism of action.Results:A total of 593 active ingredients related to Mimenghua Granules were retrieved from the Traditional Chinese Medicine Systems Pharmacology database,and 59 blood active ingredients were obtained by screening based on pharmacokinetic parameters,and 680 targets related to these ingredients were retrieved;from disease genes,the database searches for 47 genes directly related to dry eye;3 key genes(ICAM1,IFNG,and IL-6)were obtained after the intersection of the component target and disease target PPI network;these genes are mainly involved in natural killer cell-mediated cytotoxicity,Jak-STAT signaling pathway,and Cytokine-cytokine receptor interaction.Conclusion:The mechanism of Mimenghua Granules in treating dry eye is related to the interaction of cytotoxic pathway,Jak-STAT signal pathway,and cytokines.The key gene targets are ICAM1,IFNG,and IL-6.展开更多
文摘Objective To establish a RP-HPLC fingerprinting analysis method for quality evaluation and control of the four variants of Chrysanthemi Morifoli Flos.Methods RP-HPLC was used to establish the fingerprinting method.Results Despite of the similarity in terms of holistic HPLC chromatograms,the four variants of Chrysanthemi Morifoli Flos exhibit characteristic fingerprints and can be readily recognized by similarity clusters.Conclusion A simple and reliable HPLC fingerprinting method has been developed and validated to authenticate the four variants of Chrysanthemi Morifoli Flos,providing a scientific basis for quality control of Chrysanthemi Morifoli Flos.
文摘以菊花(Flos Chrysanthemi)、桑(Morus alba L.)叶和优质奶粉为原料,配以蔗糖,研究了发酵生产天然保健型酸奶的工艺条件以及桑菊提取液的制备方法,并对产品质量作出评价。通过单因素试验和正交试验确定了桑菊酸奶发酵的最佳工艺条件为:桑、菊提取液添加量25%(桑叶提取液10%、菊花提取液15%)(V/V),蔗糖添加量7%(W/V),凝固剂CMC-Na添加量0.1%(W/V),接种量5%(保加利亚乳杆菌2%、嗜热链球菌3%)(V/V)。
文摘The effect of lanthanum on the growth and extracellular enzyme activity of Erwinia chrysanthemi(Ech) was studied. Lanthanum inhibited the growth of Ech in solid culture at the concentration of 50, 100, 150, 200, 250, 300 and 350 mgL-1, and the inhibition increased with the increase of the RE concentration. The formation of colony delayed and the diameter of colony decreased. Lanthanum stimulated the growth of Ech within 24h when the lanthanum concentration was less than 200 mgL-1 in liquid medium, but significantly inhibited the growth of Ech with the increase of lanthanum concentration and culture time. When the concentration was higher than 350 mgL-1, the growth of Ech was inhibited completely both in solid and liquid culture. The extracellular enzyme acitivity of Ech was affected by lanthanum at 200 mgL-1. The activity of cellulose was promoted more than that of protease but the activity of pectinase was decreased. The maceration to potato tuber tissue decreased when the cell free filtrate was tr
基金supported by the National Natural Science Foundation of China (grant numbers 81273392)the Natural Science Foundation of Henan Province (grant numbers 182300410348)
文摘Objective:The purpose of this study is to investigate the anti-diabetic effects of linarin,a flavonoid extracted from Chrysanthemi Indici Flos(CIF),and its potential mechanisms.Methods:The effects of linarin on cell viability and glucose consumption in Hep G2 cells were measured.Meanwhile,monosodium glutamate(MSG) mouse model was constructed to monitor the changes of insulin tolerance,glucose tolerance,triglyceride and cholesterol.The protein expression levels of pAMPK,p-ACC,PEPCK and p-GS were detected by Western blot.Results:Linarin could increase the relative glucose consumption of Hep G2 cells,improve insulin tolerance and glucose tolerance,and decrease the levels of triglyceride and cholesterol of MSG mice.Simultaneously,the expression levels of p-AMPK and p-ACC in Hep G2 cells and the liver tissue of MSG mice were increased,while the expression levels of PEPCK and p-GS were decreased after treatment with linarin.Conclusion:Insulin resistance could be ameliorated by linarin in type 2 diabetes,and its mechanism may be related to AMPK signaling pathway.
文摘Pectobacterium chrysanthemi is one of the main pathogens of soft rot disease of Amorphophallus konjac.The bacteriostatic effect of extracts from 10 kinds of traditional Chinese medicine and garlic on Pectobacterium chrysanthemi was studied in this experiment.The results showed that the extracts of Coptis chinensis,garlic,Scutellaria baicalensis,Mume Fructus and Bupleurum had significant bacteriostatic effect.Among them,Coptis chinensis and garlic had the best bacteriostatic effect on Pectobacterium chrysanthemi,and the diameter of inhibition zone was 2.27 and 2.19 cm,respectively,followed by Scutellaria baicalensis,with the diameter of inhibition zone of 1.68 cm.The extracts of Coptis chinensis,Scutellaria baicalensis and garlic with good bacteriostatic effect were diluted by double dilution method,and the bacteriostatic effect was determined.The results showed that 2-fold dilution of Coptis chinensis and 2-fold and 4-fold dilution of Scutellaria baicalensis had significant bacteriostatic effect,but the bacteriostatic effect of garlic extract was not obvious after dilution.
文摘A simplified method for determining 4 pyrethroid insecticides (Fenpropathrin, Cypermethrin, Fenvalirate, and Deltamethrin) in Chrysanthemi is described. Standards were fortified in to Chrysanthemi (5g) with two levels, 0.1-1 pp m the pyrethroid pesticides are extracted with petroleum ether and cleaned up by natural aluminum oxide. The extracts are analyzed by gas chromatography equipped with electron capture detector (ECD). Analysis of fortified Chrysanthemi (n = 3) shows recovery range from 99-102 % at 1 pp m level and 93-104 % at 0.1 pp m level. The coefficient of variation of the method at 1 st level was 0.12 and 0.14 for 2 ed level. The detection limits of the method ranged from 0.04pp b to 28 pp b. The method is rapid, sample, and sensitive and is applicable to the determination of Fenpropathrin, Cypermethrin, Fenvalirate, and Deltamethrin in Chrysanthemi.
基金Projects supported by the National Natural Science Foundation of China(30772824,81574031)TCM Key Laboratory Construction Project of Hunan Province for Prevention and Treatment of ENT(2017TP1018)+3 种基金Central financial support for local university construction projects(2018-2019)State Administration of Traditional Chinese Medicine Ophthalmology Key Discipline Construction Project(ZK1801YK015)Key Discipline Construction Project of TCM Five Sense Organs in Hunan ProvinceHunan Graduate Research Innovation Project(CX20200783).
文摘Objective:To explore the molecular mechanism of Mimenghua Granules in treating dry eye based on network pharmacology and bioinformatics methods.Methods:Screening and prediction of possible blood-inducing active ingredients and action target of Mimenghua Granules through Traditional Chinese Medicine Systems Pharmacology database and analysis platform;mining dry eye-related diseases through disease gene database,gene target;use the functional protein combined network database STRING to draw the component-target and disease-target PPI networks,and extract the intersection of these two networks;use DAVID database analysis to screen key targets and analyze the mechanism of action.Results:A total of 593 active ingredients related to Mimenghua Granules were retrieved from the Traditional Chinese Medicine Systems Pharmacology database,and 59 blood active ingredients were obtained by screening based on pharmacokinetic parameters,and 680 targets related to these ingredients were retrieved;from disease genes,the database searches for 47 genes directly related to dry eye;3 key genes(ICAM1,IFNG,and IL-6)were obtained after the intersection of the component target and disease target PPI network;these genes are mainly involved in natural killer cell-mediated cytotoxicity,Jak-STAT signaling pathway,and Cytokine-cytokine receptor interaction.Conclusion:The mechanism of Mimenghua Granules in treating dry eye is related to the interaction of cytotoxic pathway,Jak-STAT signal pathway,and cytokines.The key gene targets are ICAM1,IFNG,and IL-6.
文摘目的研究野菊花中萜类和黄酮类化合物对刀豆蛋白A(Con A)诱导的小鼠免疫性肝损伤的保护作用。方法将小鼠随机分成对照组,模型组,野菊花各提取部位(CIF-A,主要含萜类化合物;CIF-B,主要含萜类和黄酮类化合物;CIF-C,主要含黄酮类化合物)高、中、低剂量组,联双酯滴丸阳性对照组。小鼠首日上下午和次日下午各ig给药1次,以后每天给药1次,连续7 d,末次给药后,除对照组外,其他组小鼠尾iv Con A制备小鼠免疫性肝损伤模型。检测小鼠血清中天冬氨酸转氨酶(AST)、丙氨酸转氨酶(ALT)、肿瘤坏死因子-α(TNF-α)、γ干扰素(IFN-γ)的水平;测定肝组织中MDA的量,观察肝脏病理组织学变化。结果与模型组比较,CIF-A、CIF-B均抑制血清中AST、ALT、TNF-α水平的升高;CIF-C抑制AST、ALT、IFN-γ水平的升高;CIF-B可降低肝组织中MDA的量,明显改善肝组织病变,作用优于CIF-A和CIF-C。结论野菊花中萜类和黄酮类化合物对ConA致小鼠免疫性肝损伤均具有一定的保肝作用,CIF-B作用更强。
