Objective:Cassiae Semen(CS,Juemingzi in Chinese)is a widely used traditional Chinese medicine with a variety of pharmacological effects.This study aimed to investigate the potential therapeutic effects and molecular m...Objective:Cassiae Semen(CS,Juemingzi in Chinese)is a widely used traditional Chinese medicine with a variety of pharmacological effects.This study aimed to investigate the potential therapeutic effects and molecular mechanisms of anthraquinones of CS(AQS)for adiposity.Methods:The chemical components of the AQS were determined using high-performance liquid chromatography(HPLC).Network pharmacology analysis was used to predict potential anti-obesity targets of action for AQS.We constructed high fat with high sugar water diet-induced obese mice and observed their body weight and whole-body lipid metabolism to evaluate the efficacy of AQS in promoting lipid metabolism.Subsequently,the epidermal temperature at the brown adipose tissue(BAT)before and after cold stimulation was observed and the expression of lipid metabolism-related genes in the liver and BAT tissues was detected to clarify the mechanism of action of AQS.Results:Network pharmacology analysis showed that AQS was involved in the regulation of liver and adipose tissue function under obesity.Pathological and biochemical results showed that AQS reduced lipid accumulation in the liver and adipose tissue induced by an unhealthy diet.With the increase of cold tolerance,the volume and weight of BAT were increased by AQS,suggesting that it regulated the body heat production dominated by BAT.After AQS treatment,the levels of genes related to uncoupling protein1(UCP1)-mediated adaptive thermogenesis in BAT tissues and lipid metabolism in the liver were also increased,which further proved that AQS activated BAT function to promote lipid metabolism in the whole body.Conclusion:This study revealed the pharmacological effects of AQS,thereby providing a scientific basis for regulating BAT thermogenesis and liver lipid metabolism to alleviate obesity and providing clues for further exploring the application of natural active ingredients in the treatment of metabolismrelated diseases.展开更多
Objective:Cassiae Semen(CS,Juemingzi in Chinese)has been used for thousands of years in ancient Chinese history for relieving constipation,improving liver function as well as preventing myopia.Here we aimed to elucida...Objective:Cassiae Semen(CS,Juemingzi in Chinese)has been used for thousands of years in ancient Chinese history for relieving constipation,improving liver function as well as preventing myopia.Here we aimed to elucidate the anti-steatosis effect and underlying mechanism of CS against non-alcoholic fatty liver disease(NAFLD).Methods:High-performance liquid chromatography(HPLC)was used to identify the major components of CS water extract.Mice were fed with a high-fat and sugar-water(HFSW)diet to induce hepatic steatosis and then treated with CS.The anti-NAFLD effect was determined by measuring serum biomarkers and histopathology staining.Additionally,the effects of CS on cell viability and lipid metabolism in oleic acid and palmitic acid(OAPA)-treated HepG2 cells were measured.The expression of essential genes and proteins involved in lipid metabolism and autophagy signalings were measured to uncover the underlying mechanism.Results:Five compounds,including aurantio-obtusin,rubrofusarin gentiobioside,cassiaside C,emodin and rhein were simultaneously identified in CS extract.CS not only improved the diet-induced hepatic steatosis in vivo,as indicated by decreased number and size of lipid droplets,hepatic and serum triglycerides(TG)levels,but also markedly attenuated the OAPA-induced lipid accumulation in hepatocytes.These lipid-lowering effects induced by CS were largely dependent on the inhibition of fatty acid synthase(FASN)and the activation of autophagy-related signaling,including AMP-activated protein kinase(AMPK),light chain 3-II(LC3-II)/LC3-1 and autophagy-related gene5(ATG5).Conclusion:Our study suggested that CS effectively protected liver steatosis via decreasing FASN-related fatty acid synthesis and activating AMPK-mediated autophagy,which might become a promising therapeutic strategy for relieving NAFLD.展开更多
Objective:To elucidate the quantification and standardization of cold and hot patterns,the fundamental concepts in traditional Chinese medicine(TCM).Methods:This randomized cross-controlled trial recruited 30 healthy ...Objective:To elucidate the quantification and standardization of cold and hot patterns,the fundamental concepts in traditional Chinese medicine(TCM).Methods:This randomized cross-controlled trial recruited 30 healthy volunteers.Participants in Group 1 underwent 14 days of Coptis chinensis Franch.(C.chinensis,Huang Lian)treatment to shift their body toward the cold pattern,followed by 7 days of washout and 14 days of Cinnamomum cassia Presl(C.cassia,Rou Gui)treatment to shift their body toward the hot pattern.Participants in Group 2 underwent the opposite treatment.Blood and stool samples were collected for routine blood testing and full-length 16S rRNA metagenomic sequencing.Results:Red blood cells(RBC),hemoglobin(HGB),hematocrit(HCT),and blood platelet count(BPC)were increased by C.chinensis,whereas the mean corpuscular HGB concentration(MCHC)was increased by C.cassia.RBC,HGB,HCT,and BPC were positively associated with the cold pattern but negatively correlated with the hot pattern,whereas MCHC showed opposite relationships.C.chinensis-increased Blautia stercoris was positively correlated with RBC,HGB,and HCT under C.chinensis treatment,whereas C.cassia-enhanced Parabacteroides distasonis_A was positively associated with MCHC under C.cassia treatment.Interestingly,five indicators(RBC,HGB,HCT,Blautia stercoris,and Prevotella copri)had an area under the curve of 0.795 for predicting the cold pattern.Although three indicators(MCHC,Akkermansia sp004167605,and Parabacteroides distasonis_A)showed poor predictive ability for the hot pattern,when the individual’s gut microbiota experienced disturbance by cold Chinese materia medica stimulation,the predictive ability increased to 0.703.Conclusion:This study suggests that blood parameters and gut microbes may be potential indicators of hot and cold TCM patterns,which could benefit the objectivity and scientific rigor of TCM.展开更多
Environmental concerns over synthetic dyes,including water pollution and high energy demands,have driven interest in sustainable alternatives.This research investigates the colouration of polyamide 6(nylon 6)textiles ...Environmental concerns over synthetic dyes,including water pollution and high energy demands,have driven interest in sustainable alternatives.This research investigates the colouration of polyamide 6(nylon 6)textiles using a natural dye derived from the mature pods of Cassia fistula,which serve as a source of anthraquinone-based pigments.The study systematically evaluated the influence of dyeing parameters-namely temperature(30-90℃),duration(10-60 min),pH range(4-11),dye concentration(10%-70%owf),and post-mordanting using alum,ferrous sulfate,and stannous chloride-on the resulting colour strength(K/S)and CIE Lab*coordinates.The fastness characteristics of polyamide 6 fabric were assessed,with the corresponding results detailed in the subsequent sections.Maximum dye absorption was achieved at 90℃for 60 minutes under acidic conditions(pH 4),and from the conditions was given K/S 2.242.An increase in dye concentration led to higher K/S values,which were further augmented by mordanting,with aluminum potassium sulfate and stannous chloride yielding the greatest results.Colour fastness assessments indicated good to excellent resistance to washing,water exposure,rubbing,and perspiration,all of the properties were up to 4.Whereas resistance to light was found from 1 to 2.The findings confirm Cassia fistula extract as a renewable,eco-friendly dye for polyamide 6,offering commercially viable colour strength and fastness while supporting sustainable textile processing.展开更多
Aim To differentiate the genuine cassia bark from its substitutes and adulterants. Methods Six components, phenylpropyl acetate, cinnamyl acetate, cinnamaldehyde, cinnamyl alcohol, coumarin, and cinnamic acid were use...Aim To differentiate the genuine cassia bark from its substitutes and adulterants. Methods Six components, phenylpropyl acetate, cinnamyl acetate, cinnamaldehyde, cinnamyl alcohol, coumarin, and cinnamic acid were used as characteristic markers, and an optimized TLC method was developed. Results The TLC profile of cassia bark is similar to its closely related variety Cinnamomum cassia Presl var. macrophyllum Chu but significantly different from other six Cinnamomum species. High content of phenylpropyl acet...展开更多
[ Objective] Through inductive culture, emodin and chrysophanol contents in cassia seed were increased. [ Method ] MS culture medium was used to bourgeon seedlings of cassia seed and to induce cotyledon callus of cass...[ Objective] Through inductive culture, emodin and chrysophanol contents in cassia seed were increased. [ Method ] MS culture medium was used to bourgeon seedlings of cassia seed and to induce cotyledon callus of cassia seed while HPLC method was adopted to determine emodin and ehrysophanol eontents.[ Result] Emedin and chrysophanol contents in cotyledon callus were 0. 099% and 0. 312%, respectively, while they were 0.029% and 0. 190% respectively in cassia seed. [ Conclusion] The method of inducing cotyledon callus was helpful for increasing emodin coment in cassia seed.展开更多
A new anthraquinone glycoside, emodin-1-O-β-gentiobioside 1, together with threeknown compounds, chrysophanol-1-O-β-gentiobioside 2, physcion-8-O-β-gentiobioside 3, andchrysophanol-1-O-β-D-glucopyranosyl-(1→3)-β...A new anthraquinone glycoside, emodin-1-O-β-gentiobioside 1, together with threeknown compounds, chrysophanol-1-O-β-gentiobioside 2, physcion-8-O-β-gentiobioside 3, andchrysophanol-1-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside4 was isolated from the seeds of Cassia obtusifolia. Its structure was elucidated on the basis ofspectroscopic evidence.展开更多
Objective: To evaluate in vivo antioxidant and hepatoprotective activities of the methanolic extract of the root of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication. Methods: Malo...Objective: To evaluate in vivo antioxidant and hepatoprotective activities of the methanolic extract of the root of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication. Methods: Malondialdehyde (MDA), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and bilirubin as indices of liver damage and lipid peroxidation were detected in rats after intraperitoneal administration of extract (5 mg/kg). Results: The liver, kidney and heart showed significant reduction ( P <0.05) in the levels of MDA from (0.18依0.04), (0.23 依0.07) and (0.26依0.10) nmol/mg respectively in the CCl 4 control to (0.15依0.03), (0.17依0.04) and (0.17 依0.07) nmol/mg protein in groups pre-treated with the extract for three days at 5 mg/kg). Similarly, compared to the CCl 4 control, significant reduction ( P<0.05) in serum AST, ALT and bilirubin as well as in level of total cholesterol and MDA with concomitant increase in HDL cholesterol, superoxide dismutase and catalase levels when CCl 4 -intoxicated rats were treated with Cassia singueana root extract for two weeks. Conclusions: These results suggest that methanolic extract of Cassia singueana contain potent antioxidant compounds that can offer significant protection against hepatic and oxidative injuries.展开更多
The Yishoujiangzhi (de-blood-lipid) tablets (composed of Radix Polygori Multiflori, Rhizoma Polygonati, Fructus Lycii, Crataegus Pinnatifida and Cassia Tora) were used in the treatment of 130 cases of hyperlipemia, ac...The Yishoujiangzhi (de-blood-lipid) tablets (composed of Radix Polygori Multiflori, Rhizoma Polygonati, Fructus Lycii, Crataegus Pinnatifida and Cassia Tora) were used in the treatment of 130 cases of hyperlipemia, achieving an effective rate of 87.0% in lowering serum cholesterol and 80.8% in lowering triglyceride.展开更多
Two new glycosides were isolated and characterized by spectral analysis from the seeds of Cassia obtusifolia and the leaves of Cassia angustifolia. The structure was elucidated as 1-hydroxyl-2-acetyl-3,8-dimethoxynaph...Two new glycosides were isolated and characterized by spectral analysis from the seeds of Cassia obtusifolia and the leaves of Cassia angustifolia. The structure was elucidated as 1-hydroxyl-2-acetyl-3,8-dimethoxynaphthalene-6-O-β-D-apiofuranosyl- （1→2）-β-D-glucopyranoside and 2-acetyl-3-methyl-8-methoxyl-1,4-naphthoquinone-6-O-β-D-glucopyranoside.展开更多
High performance liquid chromatographic(HPLC) fingerprints of Cassia seed,a traditional Chinese medicine(TCM),were developed by means of the chromatograms at two wavelengths of 238 and 282 nm.Then,the two data sets we...High performance liquid chromatographic(HPLC) fingerprints of Cassia seed,a traditional Chinese medicine(TCM),were developed by means of the chromatograms at two wavelengths of 238 and 282 nm.Then,the two data sets were combined into one matrix.The application of principal component analysis(PCA) for this data matrix showed that the samples were clustered into four groups in accordance with the plant sources and preparation procedures.Furthermore,partial least squares(PLS),back propagation artificial neural...展开更多
Thinning is an important activity employed in forest management. To date, studies have mainly focused on the effects of thinning on the growth of trees during the same thinning period. In this study, plantation Pinus ...Thinning is an important activity employed in forest management. To date, studies have mainly focused on the effects of thinning on the growth of trees during the same thinning period. In this study, plantation Pinus massoniana Lamb. near maturity were thinned at varying intensities and an economically important species, Cinnamomum cassia Presl., was planted beneath the thinned canopy. The aim of the study was to explore the effects of the extent of thinning on the essential oil content and its components of C. cassia in different parts of the plant, as well as the economic feasibility of the P. massoniana-C.cassia management model. Thinning significantly reduced the oil yield in the bark and branches of C. cassia, but hardly impacted the oil yield from C. cassia leaves compared with pure C. cassia forest（CK）. Among the different thinning treatments, both light（T.4） and extensive（T.1）thinning reduced the oil yield of C. cassia bark and new branches. The concentrations of the main aldehydes differed in different parts of the plant and were affected by the extent of thinning. The influence on cinnamaldehyde in the bark was minor, but was much greater in the branches and leaves. Both the oil yield and content of cinnamaldehyde showed that moderate（T.3） thinning was more favorable than other thinning models. These results not only provide a potentially promising model for the transformation of low-yield artificial pure forests of P. massoniana in the future, but also offer a reference for the management of artificial mixed stands.展开更多
基金supported by grants from the Fundamental Research Funds for the Central Universities(No.2023-JYB-JBZD-046)National Key Research,Development Program on Modernization of Traditional Chinese Medicine(No.2022YFC3502100)+1 种基金the National High-Level Talents Special Support ProgramHigh-level traditional Chinese medicine key subjects construction project of National Administration of Traditional Chinese Medicine-Chinese Medicine Epidemic Disease(No.zyyzdxk-2023264)。
文摘Objective:Cassiae Semen(CS,Juemingzi in Chinese)is a widely used traditional Chinese medicine with a variety of pharmacological effects.This study aimed to investigate the potential therapeutic effects and molecular mechanisms of anthraquinones of CS(AQS)for adiposity.Methods:The chemical components of the AQS were determined using high-performance liquid chromatography(HPLC).Network pharmacology analysis was used to predict potential anti-obesity targets of action for AQS.We constructed high fat with high sugar water diet-induced obese mice and observed their body weight and whole-body lipid metabolism to evaluate the efficacy of AQS in promoting lipid metabolism.Subsequently,the epidermal temperature at the brown adipose tissue(BAT)before and after cold stimulation was observed and the expression of lipid metabolism-related genes in the liver and BAT tissues was detected to clarify the mechanism of action of AQS.Results:Network pharmacology analysis showed that AQS was involved in the regulation of liver and adipose tissue function under obesity.Pathological and biochemical results showed that AQS reduced lipid accumulation in the liver and adipose tissue induced by an unhealthy diet.With the increase of cold tolerance,the volume and weight of BAT were increased by AQS,suggesting that it regulated the body heat production dominated by BAT.After AQS treatment,the levels of genes related to uncoupling protein1(UCP1)-mediated adaptive thermogenesis in BAT tissues and lipid metabolism in the liver were also increased,which further proved that AQS activated BAT function to promote lipid metabolism in the whole body.Conclusion:This study revealed the pharmacological effects of AQS,thereby providing a scientific basis for regulating BAT thermogenesis and liver lipid metabolism to alleviate obesity and providing clues for further exploring the application of natural active ingredients in the treatment of metabolismrelated diseases.
基金supported by the Beijing Municipal Science&Technology Commission(No.7212174 to XL)National Natural Science Foundation of China(No.82004045 to XL)+2 种基金Beijing Nova Program of Science&Technology(No.Z191100001119088 to XL)the Young Talents Promotion Project of China Association of Traditional Chinese Medicine(No.2020-QNRC2-01 to XL)Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine(No.ZYYCXTD-C-202006 to XL)。
文摘Objective:Cassiae Semen(CS,Juemingzi in Chinese)has been used for thousands of years in ancient Chinese history for relieving constipation,improving liver function as well as preventing myopia.Here we aimed to elucidate the anti-steatosis effect and underlying mechanism of CS against non-alcoholic fatty liver disease(NAFLD).Methods:High-performance liquid chromatography(HPLC)was used to identify the major components of CS water extract.Mice were fed with a high-fat and sugar-water(HFSW)diet to induce hepatic steatosis and then treated with CS.The anti-NAFLD effect was determined by measuring serum biomarkers and histopathology staining.Additionally,the effects of CS on cell viability and lipid metabolism in oleic acid and palmitic acid(OAPA)-treated HepG2 cells were measured.The expression of essential genes and proteins involved in lipid metabolism and autophagy signalings were measured to uncover the underlying mechanism.Results:Five compounds,including aurantio-obtusin,rubrofusarin gentiobioside,cassiaside C,emodin and rhein were simultaneously identified in CS extract.CS not only improved the diet-induced hepatic steatosis in vivo,as indicated by decreased number and size of lipid droplets,hepatic and serum triglycerides(TG)levels,but also markedly attenuated the OAPA-induced lipid accumulation in hepatocytes.These lipid-lowering effects induced by CS were largely dependent on the inhibition of fatty acid synthase(FASN)and the activation of autophagy-related signaling,including AMP-activated protein kinase(AMPK),light chain 3-II(LC3-II)/LC3-1 and autophagy-related gene5(ATG5).Conclusion:Our study suggested that CS effectively protected liver steatosis via decreasing FASN-related fatty acid synthesis and activating AMPK-mediated autophagy,which might become a promising therapeutic strategy for relieving NAFLD.
基金supported by the National Natural Science Foundation of China(81973217).
文摘Objective:To elucidate the quantification and standardization of cold and hot patterns,the fundamental concepts in traditional Chinese medicine(TCM).Methods:This randomized cross-controlled trial recruited 30 healthy volunteers.Participants in Group 1 underwent 14 days of Coptis chinensis Franch.(C.chinensis,Huang Lian)treatment to shift their body toward the cold pattern,followed by 7 days of washout and 14 days of Cinnamomum cassia Presl(C.cassia,Rou Gui)treatment to shift their body toward the hot pattern.Participants in Group 2 underwent the opposite treatment.Blood and stool samples were collected for routine blood testing and full-length 16S rRNA metagenomic sequencing.Results:Red blood cells(RBC),hemoglobin(HGB),hematocrit(HCT),and blood platelet count(BPC)were increased by C.chinensis,whereas the mean corpuscular HGB concentration(MCHC)was increased by C.cassia.RBC,HGB,HCT,and BPC were positively associated with the cold pattern but negatively correlated with the hot pattern,whereas MCHC showed opposite relationships.C.chinensis-increased Blautia stercoris was positively correlated with RBC,HGB,and HCT under C.chinensis treatment,whereas C.cassia-enhanced Parabacteroides distasonis_A was positively associated with MCHC under C.cassia treatment.Interestingly,five indicators(RBC,HGB,HCT,Blautia stercoris,and Prevotella copri)had an area under the curve of 0.795 for predicting the cold pattern.Although three indicators(MCHC,Akkermansia sp004167605,and Parabacteroides distasonis_A)showed poor predictive ability for the hot pattern,when the individual’s gut microbiota experienced disturbance by cold Chinese materia medica stimulation,the predictive ability increased to 0.703.Conclusion:This study suggests that blood parameters and gut microbes may be potential indicators of hot and cold TCM patterns,which could benefit the objectivity and scientific rigor of TCM.
文摘Environmental concerns over synthetic dyes,including water pollution and high energy demands,have driven interest in sustainable alternatives.This research investigates the colouration of polyamide 6(nylon 6)textiles using a natural dye derived from the mature pods of Cassia fistula,which serve as a source of anthraquinone-based pigments.The study systematically evaluated the influence of dyeing parameters-namely temperature(30-90℃),duration(10-60 min),pH range(4-11),dye concentration(10%-70%owf),and post-mordanting using alum,ferrous sulfate,and stannous chloride-on the resulting colour strength(K/S)and CIE Lab*coordinates.The fastness characteristics of polyamide 6 fabric were assessed,with the corresponding results detailed in the subsequent sections.Maximum dye absorption was achieved at 90℃for 60 minutes under acidic conditions(pH 4),and from the conditions was given K/S 2.242.An increase in dye concentration led to higher K/S values,which were further augmented by mordanting,with aluminum potassium sulfate and stannous chloride yielding the greatest results.Colour fastness assessments indicated good to excellent resistance to washing,water exposure,rubbing,and perspiration,all of the properties were up to 4.Whereas resistance to light was found from 1 to 2.The findings confirm Cassia fistula extract as a renewable,eco-friendly dye for polyamide 6,offering commercially viable colour strength and fastness while supporting sustainable textile processing.
文摘Aim To differentiate the genuine cassia bark from its substitutes and adulterants. Methods Six components, phenylpropyl acetate, cinnamyl acetate, cinnamaldehyde, cinnamyl alcohol, coumarin, and cinnamic acid were used as characteristic markers, and an optimized TLC method was developed. Results The TLC profile of cassia bark is similar to its closely related variety Cinnamomum cassia Presl var. macrophyllum Chu but significantly different from other six Cinnamomum species. High content of phenylpropyl acet...
基金Science and Technology Development Funds of Southwest Jiaotong University (20070013)~~
文摘[ Objective] Through inductive culture, emodin and chrysophanol contents in cassia seed were increased. [ Method ] MS culture medium was used to bourgeon seedlings of cassia seed and to induce cotyledon callus of cassia seed while HPLC method was adopted to determine emodin and ehrysophanol eontents.[ Result] Emedin and chrysophanol contents in cotyledon callus were 0. 099% and 0. 312%, respectively, while they were 0.029% and 0. 190% respectively in cassia seed. [ Conclusion] The method of inducing cotyledon callus was helpful for increasing emodin coment in cassia seed.
文摘A new anthraquinone glycoside, emodin-1-O-β-gentiobioside 1, together with threeknown compounds, chrysophanol-1-O-β-gentiobioside 2, physcion-8-O-β-gentiobioside 3, andchrysophanol-1-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside4 was isolated from the seeds of Cassia obtusifolia. Its structure was elucidated on the basis ofspectroscopic evidence.
文摘Objective: To evaluate in vivo antioxidant and hepatoprotective activities of the methanolic extract of the root of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication. Methods: Malondialdehyde (MDA), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and bilirubin as indices of liver damage and lipid peroxidation were detected in rats after intraperitoneal administration of extract (5 mg/kg). Results: The liver, kidney and heart showed significant reduction ( P <0.05) in the levels of MDA from (0.18依0.04), (0.23 依0.07) and (0.26依0.10) nmol/mg respectively in the CCl 4 control to (0.15依0.03), (0.17依0.04) and (0.17 依0.07) nmol/mg protein in groups pre-treated with the extract for three days at 5 mg/kg). Similarly, compared to the CCl 4 control, significant reduction ( P<0.05) in serum AST, ALT and bilirubin as well as in level of total cholesterol and MDA with concomitant increase in HDL cholesterol, superoxide dismutase and catalase levels when CCl 4 -intoxicated rats were treated with Cassia singueana root extract for two weeks. Conclusions: These results suggest that methanolic extract of Cassia singueana contain potent antioxidant compounds that can offer significant protection against hepatic and oxidative injuries.
文摘The Yishoujiangzhi (de-blood-lipid) tablets (composed of Radix Polygori Multiflori, Rhizoma Polygonati, Fructus Lycii, Crataegus Pinnatifida and Cassia Tora) were used in the treatment of 130 cases of hyperlipemia, achieving an effective rate of 87.0% in lowering serum cholesterol and 80.8% in lowering triglyceride.
文摘Two new glycosides were isolated and characterized by spectral analysis from the seeds of Cassia obtusifolia and the leaves of Cassia angustifolia. The structure was elucidated as 1-hydroxyl-2-acetyl-3,8-dimethoxynaphthalene-6-O-β-D-apiofuranosyl- （1→2）-β-D-glucopyranoside and 2-acetyl-3-methyl-8-methoxyl-1,4-naphthoquinone-6-O-β-D-glucopyranoside.
基金the financial support for this study by the National Natural Science Foundation of China(No.NSFC20562009)the Jiangxi Province Natural Science Foundation(No.JXNSF0620041)the State Key Laboratory of Food Science and Technology of Nanchang University(Nos.SKLF-MB200807 and SKLF-TS200819)
文摘High performance liquid chromatographic(HPLC) fingerprints of Cassia seed,a traditional Chinese medicine(TCM),were developed by means of the chromatograms at two wavelengths of 238 and 282 nm.Then,the two data sets were combined into one matrix.The application of principal component analysis(PCA) for this data matrix showed that the samples were clustered into four groups in accordance with the plant sources and preparation procedures.Furthermore,partial least squares(PLS),back propagation artificial neural...
基金supported by the key technology for the management of artificial multi-layers plantation(2006–2009)the interspecific nitrogen transfer behaviors and root interaction mechanism of Eucalyptus and Dalbergia odorifera T.Chen(31460196)the key technology for the management of Strified Mixed Stands of Pinus massoniana and Cinnamomum cassia(2014–2024)
文摘Thinning is an important activity employed in forest management. To date, studies have mainly focused on the effects of thinning on the growth of trees during the same thinning period. In this study, plantation Pinus massoniana Lamb. near maturity were thinned at varying intensities and an economically important species, Cinnamomum cassia Presl., was planted beneath the thinned canopy. The aim of the study was to explore the effects of the extent of thinning on the essential oil content and its components of C. cassia in different parts of the plant, as well as the economic feasibility of the P. massoniana-C.cassia management model. Thinning significantly reduced the oil yield in the bark and branches of C. cassia, but hardly impacted the oil yield from C. cassia leaves compared with pure C. cassia forest（CK）. Among the different thinning treatments, both light（T.4） and extensive（T.1）thinning reduced the oil yield of C. cassia bark and new branches. The concentrations of the main aldehydes differed in different parts of the plant and were affected by the extent of thinning. The influence on cinnamaldehyde in the bark was minor, but was much greater in the branches and leaves. Both the oil yield and content of cinnamaldehyde showed that moderate（T.3） thinning was more favorable than other thinning models. These results not only provide a potentially promising model for the transformation of low-yield artificial pure forests of P. massoniana in the future, but also offer a reference for the management of artificial mixed stands.
