In this paper, Chrysanthemum morifolium was used as the experimental object, eight different planting periods were set up in field plot experiment from April to August, which were 04-15, 05-19, 05-30, 06-09, 06-19, 07-20, 07-31, 08-15. The effects of different treatments on the occurrence of root rot, agronnmic traits, mineral element absorption and content of effective components of Ch. morifolium in Macheng country of Hubei province were studied. The results showed that delaying the planting time could effectively reduce the diseases occurrence of root rot of Ch. morifolium. With the advance of transplanting period, the plant height, the weight of one hundred flowers and the number of flowers of Ch. morifolium showed a trend of gradual decrease, while the number of primary branches and the thickness of main stem and the primary branch increased first and then decreased. The yield of Ch. morifolium per plant and per mu increased with the advance of the planting period, and the yield per mu increased during the planting period on June 19, which was 91.96% higher than that on April 15. And with the delay of the planting period,the absorption and accumulation of potassium(K) elements was promotes. The content of active ingredients such as chlorogenic acid, rutin, luteolin, and 3,5-O dicoffeoacy lquinic acid in the Ch. morifolium increased significantly and then gradually decreased with the delay of the planting period, which indicates that late planting can significantly improve the quality of Ch. morifolium. Considering factors such as the occurrence of root rot disease, yield and active ingredient content, combined with climatic conditions in the Dabie Mountains in eastern Hubei, the optimum planting period of Ch. morifolium was determined from mid-late June to early July.
Chlorogenic Acid ; Chrysanthemum ; Flowers ; Minerals

Based on high-throughput sequencing and metagenomic technology,the community composition and ecological functions of endophytic fungi in the bark of Eucommia ulmoides from three producing areas,Fengxiang town in Zunyi county of Guizhou province,Lingyang town of Cili county of Hunan province and Mumen town of Wangcang county of Sichuan province,were analyzed. A total of110 865 effective sequences of endophytic fungi were obtained in the study. The corresponding fungal group of OTUs after clustering belonged to 3 phyla( Ascomycota,Basidiomycota,Zygomycota),10 classes,25 orders,41 families,57 genera and 74 species. Among them,the dominant genera of Sichuan Wangcang Bark of E. ulmoides( EWP) was an unclassified genus in the Nectriaceae of the Crimsonaceae,with a relative abundance of 54. 79%; The dominant species of Hunan Cili Bark of E. ulmoides( ECP) was the unclassified genus of Ascomycota,with a relative abundance of 39. 97% and the dominant species of Guizhou Zunyi bark( EZP) was Lophiostoma,and its relative abundance was 47. 07%. The analysis of α diversity indicated that the shannon diversity index of endophytic fungi from different places was as follows: ECP: 1. 340 2>EZP: 1. 380 4 > EWP: 1. 168 3. The simpson diversity index was: EWP( 0. 427 3) >EZP( 0. 332 5) > ECP( 0. 313 6). FUNGuild software platform analysis displayed that endophytic fungi of E. ulmoides bark from three producing areas contained the following 14 functional groups: plant pathogen,animal pathogen and endophyte et al.,the number of functional groups in the 3 samples of E. ulmoides reached up 8 genera and exceeded one half of the total number. Correlation analysis of Canonical correspondence analysis( CCA) between endophytic fungal community diversity and four active compounds of E. ulmoides were analyzed,the results showed that the contents of pinoresinol diglucoside and chlorogenic acid,to a certain extend,had a positive correlation with an unclassified genus of Davidiellaceae,Mortierella,Chaetomium and Pestalotiopsis from the endophytic fungi in EWP sample.
Animals ; Ascomycota ; Chlorogenic Acid ; Ecosystem ; Eucommiaceae ; Fungi

Huocao(a traditional Chinese herbal medicine) moxibustion is a characteristic technology in Yi medicine suitable for cold-dampness diseases. Huocao, as the moxibustion material, is confusedly used in clinical practice and little is known about its quality control. In this study, UPLC method was used to establish the chemical fingerprint of non-volatile components in Huocao, and the contents of eight phenolic acids such as chlorogenic acid were determined. Multivariate statistical analysis was performed to obtain the indicator components of Huocao for quality evaluation, and thus a comprehensive evaluation system for the quality of Huocao was built. The UPLC fingerprints of 49 batches of Huocao were established, and there were 20 common peaks, of which eight phenolic acids including neochlorogenic acid and chlorogenic acid were identified. Except for three batches of Huocao, the similarity of the other 46 batches was higher than 0.89, suggesting that the established fingerprint method could be used for quality control of the medicinal herb. The correlation coefficient between entropy weight score of the eight phenolic acids and comprehensive fingerprint score in Huocao was 0.875(P<0.01), which indicated that the eight phenolic acids could be used as indicator components for the quality evaluation of Huocao. Furthermore, in multivariate statistical analysis on the common peaks of fingerprint and the contents of the eight phenolic acids, chlorogenic acid, isochlorogenic acid A and isochlorogenic acid C were screened to be the indicator components. The results revealed that the proposed method achieved a simple and accurate quality control of Huocao based on UPLC fingerprint and multi-component content determination, which provided useful data for establishing the quality standard of Huocao.
Chlorogenic Acid ; Entropy ; Hydroxybenzoates ; Quality Control

OBJECTIVETo develop the identification and assay for chlorogenic acid in commercial Herba Artemisiae Scopariae.

METHODTLC method was used for identification with silica gel G plate and butyl acetate-formic acid-water (7:2.5:2.5) upper layer as a developing solvent. Chlorogenic acid in 85% methanolic extract was separated on the ODS column with methonal-3% acetic acid solution (15:85) as mobile phase. The detection wavelength was 327 nm.

RESULTThe qualitative method is repeatable. Chlorogenic acid in extracts is well separated, relationship of injection amount and peak area is linear (r = 0.9998) within the range of 0.075-0.6 microgram. The average recovery is 100.9% and repeatability is 1.4%. Ten samples purchased from different areas in the country were identified and quantified with the methods.

CONCLUSIONThe methods and data could be used for quality control.

Pear is one of the main fruits with thousands of years of cultivation history in China. There are more than 2000 varieties of pear cultivars around the world, including more than 1200 varieties or cultivars in China (Legrand et al., 2016). Xinjiang Uygur Autonomous Region is an important pear production region in China with 30 of varieties or cultivars. Pyrus sinkiangensis is the most popular variety, which is mainly distributed in Xinjiang (Zhou et al., 2018). Chlorogenic acid (CGA), p-coumaric acid, and arbutin are the main polyphenols in pear fruit, and their levels show great differences among different varieties (Li et al., 2014). CGA is a potential chemo-preventive agent, which possesses many important bioactivities including antioxidant, diabetes attenuating, and anti-obesity (Wang et al., 2021). Therefore, the specific CGA content of a variety is considered the embodiment of the functional nutritional value of pears.
Chlorogenic Acid ; Fruit ; Gene Expression Profiling ; Pyrus/genetics* ; Transcriptome

This study employed Box-Behnken design combined with flux attenuation to explore the nanofiltration conditions for separation of alcohol precipitation liquid during the preparation of Reduning Injection and discussed the applicability of nanofiltration in the separation of the liquid with high-concentration ethanol. The effects of nanofiltration molecular weight cut-off(MWCO) and pH on the rejection of chlorogenic acid, 3,5-dicaffeoylquinic acid, and 4,5-dicaffeoylquinic acid were consistent with the principles of pore size sieving and charge effect, respectively. The rejection of the three phenolic acids was reduced by concentration polarization effect caused by trans-membrane pressure(TMP). The swelling of membrane surface decreased the pore size and membrane flux for effective separation. Chlorogenic acid and 4,5-dicaffeoylquinic acid were more sensitive to pH and ethanol concentration than 3,5-dicaffeoylquinic acid. A certain correlation existed between the compound structure and the separation factors of nanofiltration, and the separation rules were associated with the comprehensive effect of charge effect, pore size sieving, concentration polarization, steric hindrance and so on.
Chlorogenic Acid ; Drugs, Chinese Herbal/chemistry* ; Ethanol ; Injections

To reveal the effect of plant growth regulator GA₃ and DPC on the active components and its possible mechanism of Lonicera japonica. GA and DPC were applied at the stage of flower bud differentiation, and the content of active ingredients was measured by LC-MS-MS, the content of endogenous hormones were measured by ELISA, and the expression of key enzyme enes expression was determined by qRT-PCR. The level of endogenous hormone GA₃, IAA, ZR, DHZR and iPA in the GA treatment group was significantly improved, the expression of C4H1, C4H2, 4CL1 and HQT2 were also significantly increased. The content of chlorogenic acid, luteolin, luteoloside, isoquercetin and caffeic acid increased significantly. Spraying DPC did not affect or inhibit the accumulation of active components of L. japonica. Spraying GA can increase the content of endogenous GA₃, thus enhance the expression of C4H1, C4H2, 4CL1 and HQT2, and then increase the content of chlorogenic acid and luteolin.
Chlorogenic Acid ; Lonicera ; Plant Growth Regulators ; Tandem Mass Spectrometry

The rat everted intestinal sac model was adopted to investigate the absorption of total flavonoids from Coreopsis tinctoria in different intestinal segments. Cyaniding-3-O-β-D-glucoside, chlorogenic acid, flavanomarein, quercetagetin-7-O-β-D-glucoside, iso-okanin, marein and 3,5-dicaffeoylquinic acid which as the major chemical components of total flavonoids from C. tinctoria were selec-ted as the study objects to evaluate the absorption characteristics of each component in different intestinal segments. The results showed that the absorption of seven components of total flavonoids at different intestinal segments was in consistent with zero order absorption rate. The K_a of chlorogenic acid, flavanomarein, quercetagetin-7-O-β-D-glucoside, isookanin and 3,5-dicaffeoylquinic acid increased with increasing of concentration of total flavonoids(P<0.05), indicating that the intestinal absorption of these five components was passive transport. The K_a of cyaniding-3-O-β-D-glucoside and marein showed a weak concentration dependence, suggesting that the absorption of them may be an positive and passive co-existing mode. The result of absorption in different intestinal segments showed that cyaniding-3-O-β-D-glucoside, chlorogenic acid, flavanomarein, quercetagetin-7-O-β-D-glucoside, marein and 3,5-dicaffeoylquinic acid were mainly absorbed in ileum, while isookanin was mainly absorbed in jejunum. The total flavonoids of C. tinctoria are selectively absorbed in intestinal tract, the rat everted intestinal sac model can be used to evaluate the multi-component intestinal absorption characteristics of total flavonoids from C. tinctoria.
Animals ; Chlorogenic Acid ; Coreopsis ; Flavonoids ; Intestinal Absorption ; Plant Extracts ; Rats

In this work,a high performance liquid chromatography-ultraviolet( HPLC-UV) detection technology was used to establish fingerprint analysis method for Sanye Tangzhiqing Decoction following an analytical quality by design( AQb D) approach. Firstly,column temperature,flow rate,and gradient elution conditions were determined as the method parameters needing to be optimized. Then according to the results of definitive screening design,three critical method attributes( CMAs) were identified,including peak number,the percentage of common peak area to total peak area,and retention time of the last peak. A stepwise regression method was used then to build quantitative models between CMAs and method parameters. Probability-based design space was calculated and successfully verified using the experimental error simulation method. After the analysis conditions were optimized,the contents of six components,namely chlorogenic acid,paeoniflorin,rutin,hyperoside,quercetin-3-O-β-D-glucuronide,and salvianolic acid B were simultaneously determined. There were 19 common peaks in the fingerprint and their common peak area accounted for 96% of the total peak area. Both fingerprint and quantitative analysis methods were validated applicable in methodology study,and they can be applied to determine new samples.
Chlorogenic Acid ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal

The chemical constituents in Urtica dioica fruits were investigated by silica gel chromatography, preparative HPLC, NMR, and HR-MS for the first time. As a result, 21 compounds were isolated from the fruits of U. dioica and identified 7R,8S,8'R-olivil(1), oleic acid(2), α-linoleic acid(3), palmic acid(4), methyl palmitate(5), α-linolenic acid(6), α-linolenic acid methyl ester(7), 5-O-caffeoyl-shikimic acid(8), vanillic acid(9), p-coumaric acid(10), 5-O-p-coumaroylshikimic acid(11), cinnamic acid(12), quinic acid(13), shikimic acid(14), ethyl caffeate(15), coniferyl ferulate(16), ferulic acid(17), caffeic acid(18), chlorogenic acid(19), pinoresinol(20), and quercetin(21). Compound 1 was a new compound and compounds 2-16 were isolated from U. dioica for the first time.
Chlorogenic Acid ; Fruit ; Linoleic Acid ; Oleic Acid ; Quercetin/chemistry* ; Quinic Acid ; Shikimic Acid ; Silicon Dioxide ; Urtica dioica/chemistry* ; Vanillic Acid ; alpha-Linolenic Acid