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Based on non-targeted metabolomics for differential components screening of Rosae Chinensis Flos and Rosae Rugosae Flos and their quality evaluation
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作者 Xu Liang Ni-Hui Zhang +4 位作者 Zhi-Lai Zhan Guang-Lu Chang Yan Gao Xia Li Wen-Yuan Gao 《Traditional Medicine Research》 2025年第2期1-15,共15页
Background:Rosa chinensis Jacq.and Rosa rugosa Thunb.are not only of ornamental value,but also edible flowers and the flower buds have been listed in the Chinese Pharmacopoeia as traditional medicines.The two plants h... Background:Rosa chinensis Jacq.and Rosa rugosa Thunb.are not only of ornamental value,but also edible flowers and the flower buds have been listed in the Chinese Pharmacopoeia as traditional medicines.The two plants have some differences in efficacy,but the flower buds are easily confused for similar traits.In addition,large-scale cultivation of ornamental rose flowers may lead to a decrease in the effective components of medicinal roses.Therefore,it is necessary to study the chemical composition and make quality evaluation of Rosae Chinensis Flos(Yueji)and Rosae Rugosae Flos(Meigui).Methods:In this study,40 batches of samples including Meigui and Yueji from different regions in China were collected to establish high-performance liquid chromatography fingerprints.Then,the fingerprints data was analyzed using principal component analysis,hierarchical cluster analysis,and partial least squares discriminant analysis analysis chemometrics to obtain information on intergroup differences,and non-targeted metabolomic techniques were applied to identify and compare chemical compositions of samples which were chosen from groups with large differences.Differential compounds were screened by orthogonal partial least-squares discriminant analysis and S-plot,and finally multi-component quantification was performed to comprehensively evaluate the quality of Yueji and Meigui.Results:The similarity between the fingerprints of 40 batches roses and the reference print R was 0.73 to 0.93,indicating that there were similarities and differences between the samples.Through principal component analysis and hierarchical cluster analysis of fingerprints data,the samples from different origins and varieties were intuitively divided into four groups.Partial least-squares discriminant analysis analysis showed that Meigui and Yueji cluster into two categories and the model was reliable.A total of 89 compounds were identified by high resolution mass spectrometry,mainly were flavonoids and flavonoid glycosides,as well as phenolic acids.Eight differential components were screened out by orthogonal partial least-squares discriminant analysis and S-plot analysis.Quantitative analyses of the eight compounds,including gallic acid,ellagic acid,hyperoside,isoquercitrin,etc.,showed that Yueji was generally richer in phenolic acids and flavonoids than Meigui,and the quality of Yueji from Shandong and Hebei was better.It is worth noting that Xinjiang rose is rich in various components,which is worth focusing on more in-depth research.Conclusion:In this study,the fingerprints of Meigui and Yueji were established.The chemical components information of roses was further improved based on non-targeted metabolomics and mass spectrometry technology.At the same time,eight differential components of Meigui and Yueji were screened out and quantitatively analyzed.The research results provided a scientific basis for the quality control and rational development and utilization of Rosae Chinensis Flos and Rosae Rugosae Flos,and also laid a foundation for the study of their pharmacodynamic material basis. 展开更多
关键词 Rosa chinensis Jacq. Rosa rugosa Thunb. metabolomics CHEMOMETRICS multiple component quantification quality evaluation
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Mechanism of Rosae Rugosae Flos flavonoids in the treatment of hyperlipidemia and optimization of extraction process based on network pharmacology
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作者 Yunxiao Xia Aijinxiu Ma +1 位作者 Zihan Hou Xu Zhao 《Journal of Polyphenols》 2024年第2期65-77,共13页
This study aims to identify a natural plant chemical with hypolipidemic effects that can be used to treat high cholesterol without adverse reactions.Through network pharmacology screening,it was found that Rosae Rugos... This study aims to identify a natural plant chemical with hypolipidemic effects that can be used to treat high cholesterol without adverse reactions.Through network pharmacology screening,it was found that Rosae Rugosae Flos(RF)flavonoids had potential therapeutic effects on hyperlipidemia and its mechanism of action was discussed.TCMSP and GeneCards databases were used to obtain active ingredients and disease targets.Venn diagrams were drawn to illustrate the findings.The interaction network diagram was created using Cytoscape 3.8.0 software.The PPI protein network was constructed using String.GO and KEGG enrichment analysis was performed using Metascape.The results revealed 2 active flavonoid ingredients and 60 potential targets in RF.The key targets,including CCL2,PPARG,and PPARA,were found to play a role in multiple pathways such as the AGE-RAGE signaling pathway,lipid and atherosclerosis,and cancer pathway in diabetic complications.The solvent extraction method was optimized for efficient flavonoid extraction based on network pharmacology prediction results.This was achieved through a single factor and orthogonal test,resulting in an optimum process with a reflux time of 1.5 h,a solid-liquid ratio of 1:13 g/mL,and an ethanol concentration of 50%. 展开更多
关键词 Rosae rugosae Flos FLAVONOIDS EXTRACTION process optimization network pharmacology HYPERLIPIDEMIA
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藿香
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作者 易绮斐 《热带亚热带植物学报》 北大核心 2025年第5期F0002-F0002,共1页
藿香[Agastache rugosa(Fisch.&C.A.Mey.)Kuntze]为唇形科藿香属植物。多年生直立草本,高0.5~1.5 m,茎四棱形。叶心状卵形至矩圆状披针形,长4.5~11 cm,宽3~6.5 cm,先端尾状长渐尖,基部心形,边缘具粗锯齿,纸质,上面橄榄绿色,近无毛,... 藿香[Agastache rugosa(Fisch.&C.A.Mey.)Kuntze]为唇形科藿香属植物。多年生直立草本,高0.5~1.5 m,茎四棱形。叶心状卵形至矩圆状披针形,长4.5~11 cm,宽3~6.5 cm,先端尾状长渐尖,基部心形,边缘具粗锯齿,纸质,上面橄榄绿色,近无毛,下面略淡,被微柔毛及点状腺体;叶柄长1.5~3.5 cm。轮伞花序多花,在主茎或侧枝上组成顶生密集圆筒形穗状花序;花萼管状倒圆锥形,浅紫色或紫红色;花冠蓝紫色或淡紫色,冠筒基部微超出于萼,向上渐宽,冠檐二唇形,上唇直伸,下唇3裂,中裂片较宽大,边缘波状,基部宽,侧裂片半圆形。小坚果卵状矩圆形,腹部具棱,先端具短硬毛,褐色。花期6月—9月;果期9月—11月。 展开更多
关键词 草本 多年生 唇形科 Agastache rugosa
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Optimizing Ethanol Concentrations to Enhance Growth and Bioactive Compound Production in Agastache rugosa Cultivated in a Plant Factory
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作者 Vu Phong Lam Dao Nhan Loi +4 位作者 Xin Wang Jongwon Do Isaya Kisekk Nguyen Thi Thanh Nga Jongseok Park 《Phyton-International Journal of Experimental Botany》 2025年第4期1253-1267,共15页
Agastache rugosa,a medicinal plant known for its bioactive compounds,has gained attention for its pharmacological and commercial potential.This study aimed to optimize ethanol concentration to enhance growth and bioac... Agastache rugosa,a medicinal plant known for its bioactive compounds,has gained attention for its pharmacological and commercial potential.This study aimed to optimize ethanol concentration to enhance growth and bioactive compound production in A.rugosa cultivated in a controlled plant factory system.Ethanol treatments at 40 and 80 mM significantly promoted both vegetative and reproductive growth.Plants treated with these concentrations exhibited higher net photosynthetic rates(A)and intercellular CO_(2) concentration(Ci)compared to the untreated control,whereas stomatal conductance(gs)and transpiration rate(E)remained unaffected.Chlorophyll and carotenoid concentrations,and SPAD values,significantly increased with ethanol treatment.Total flavonoid and total phenolic contents as well as 2,2-diphenyl-1-picrylhydrazyl(DPPH)radical-scavenging activities were significantly higher in plants treated with ethanol than in the untreated control.Ethanol treatments led to a significant enhancement in the activities of antioxidant enzymes,including superoxide dismutase,peroxidase,and catalase.Furthermore,ethanol treatment elevated rosmarinic acid concentrations in roots and tilianin and acacetin levels in flowers.Collectively,ethanol at 40 and 80 mM effectively enhanced growth,photosynthesis,antioxidant defense,and bioactive compound production in A.rugosa cultivated in a plant factory.These findings provide valuable insights for improving cultivation of medicinal plants with high pharmaceutical and nutraceutical value. 展开更多
关键词 Agastache rugosa ETHANOL plant factory ANTIOXIDANT photosynthetic pigments bioactive compounds
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Polyphenol-enriched Sophora japonica L. and Rosa rugosa Thunb. composite solid beverage: antioxidant and lipid-lowering effi cacy with stability assessment
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作者 Jianzhuo Du Yunxiao Xia +1 位作者 Pingyu Ge Xu Zhao 《Journal of Polyphenols》 2025年第3期137-149,共13页
In the context of a surging demand for functional foods,this study utilized Sophora japonica L.(SL)and Rosa rugosa Thunb.(RT),which are rich in polyphenols(with flavonoids as the core subclass).High-purity extracts(SL... In the context of a surging demand for functional foods,this study utilized Sophora japonica L.(SL)and Rosa rugosa Thunb.(RT),which are rich in polyphenols(with flavonoids as the core subclass).High-purity extracts(SLE and RTE)were obtained through ethanol reflux extraction and macroporous resin purification,and then formulated with maltodextrin and erythritol to prepare a composite solid beverage.This beverage exhibited excellent antioxidant capabilities.At a concentration of 1 mg/mL,the scavenging rates of DPPH,ABTS,and hydroxyl radicals reached 82.4%,94.6%,and 49.2%,respectively.Network pharmacology indicated that quercetin andβ-sitosterol could modulate lipid metabolism pathways.Moreover,the beverage showed potential for lipid-lowering.Its cholate adsorption capacity was 589.4±2.9 mg/g at pH 7.0,and the IC50 value for pancreatic lipase inhibition was 32.55 mg/mL.However,a 60-day storage stability test revealed that the moisture content approached 5%,likely due to polyphenol-flavonoid reactivity,extending dissolution time to 30.88 s.These changes were attributed to polyphenols(with flavonoids as the core active subclass,and non-flavonoids such as phenolic acids as auxiliary),resulting in color alterations and reduced solubility.This study confirmed the dual functions of the SL-RT beverage in antioxidant and lipid-lowering aspects.Nevertheless,it also pointed out the need to optimize the formula and process to enhance stability,providing an important basis for the development of stable functional beverages. 展开更多
关键词 Sophora japonica L. Rosa rugosa Thunb. POLYPHENOLS FLAVONOIDS antioxidant activity lipid metabolism regulation network pharmacology
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Synthesis of 4-[F-18]Fluoro-4-Deoxy-N-Acetyl-1,3,6-Tri-O-Acetylglucosamine, a Potential Brain Imaging PET Agent
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作者 Murthy Akula Derek Cressy +2 位作者 Lee Collier George Kabalka Dustin Osborne 《Natural Science》 2024年第3期19-23,共5页
The synthesis of a promising brain imaging agent 4-[F-18]fluoro-4-deoxy-N-acetyl-1,3,6-tri-O-acetylglucosamine, 2, was successfully accomplished from commercially available N-acetyl glucosamine in 5 steps. The non-dec... The synthesis of a promising brain imaging agent 4-[F-18]fluoro-4-deoxy-N-acetyl-1,3,6-tri-O-acetylglucosamine, 2, was successfully accomplished from commercially available N-acetyl glucosamine in 5 steps. The non-decay corrected radiochemical yield and purity were found to be 31% ± 4% (n = 3) and >98% respectively. The total reaction time for radio labelling step was 50 min. 展开更多
关键词 N-ACETYLGLUCOSAMINE AMYLOIDOGENESIS Lipase-Candida rugosa
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Exploring the mechanism of Crocus sativus and Rosa rugosa for the treatment of coronary heart disease based on network pharmacology and molecular docking
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作者 Aijinxiu Ma Zihan Hou +1 位作者 Ming Yang Xu Zhao 《Journal of Polyphenols》 2024年第1期20-32,共13页
Coronary atherosclerotic heart disease(CHD)is the main type of cardiovascular disease.The efficacy of Uyghur drug compound Saffron formula in CHD has been clinically proven.However,the underlying mechanism remains unc... Coronary atherosclerotic heart disease(CHD)is the main type of cardiovascular disease.The efficacy of Uyghur drug compound Saffron formula in CHD has been clinically proven.However,the underlying mechanism remains unclear.In this study,researchers investigated the active ingredients and mechanism of action of Crocus sativus and Rosa rugosa in the treatment of CHD by network pharmacology and molecular docking techniques,collected target information with the help of TCMSP,GEO,GeneCards,and other databases,constructed protein-protein interaction(PPI)network diagrams by STRING database,performed GO and KEGG pathway enrichment analysis on common targets,and finally molecularly docked the active ingredients with core targets.C.sativus-R.rugosa have a variety of polyphenol compounds,a total of 12 active ingredients,including quercetin and kaempferol,were screened.The first three targets intersected with the core targets of CHD as AKT1,TNF,and IL-1B.Enrichment results of KEGG pathway showed that C.sativus-R.rugosa against CHD involved atherosclerosis pathways.The molecular docking results showed that quercetin and kaempferol were well bound to the core targets,and it was speculated that these components might be the main active ingredients for the treatment of CHD.The potential mechanism of action of C.sativus-R.rugosa for the treatment of coronary heart disease was initially revealed. 展开更多
关键词 coronary heart disease Crocus sativus molecular docking network pharmacology POLYPHENOL Rosa rugosa
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玫瑰花产量灰色分析、Kriging插值及选择指数研究 被引量:13
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作者 李艳艳 丰震 +2 位作者 赵兰勇 莫镇华 张宝 《中国农业科学》 CAS CSCD 北大核心 2008年第5期1429-1435,共7页
【目的】探讨玫瑰(Rosa rugosa Thunb.)高产品种的选育理论与技术。【方法】对20个玫瑰品种的15个数量性状与单株产花量进行灰色系统分析、Kriging插值模拟、综合选择指数分析。【结果】单株花数、分枝数、花蕾宽和单花鲜重等4个性状与... 【目的】探讨玫瑰(Rosa rugosa Thunb.)高产品种的选育理论与技术。【方法】对20个玫瑰品种的15个数量性状与单株产花量进行灰色系统分析、Kriging插值模拟、综合选择指数分析。【结果】单株花数、分枝数、花蕾宽和单花鲜重等4个性状与单株产花量的灰色关联度较大(大于0.5)。根据单株产花量的Kriging插值模拟结果,单株产花量随单株花数、分枝数的增加而增加,任何单一因素的变化均不能保证主要目标性状的提高。【结论】提高玫瑰单株产花量的选育方法应该采用多性状综合选择法,选用单株花数、分枝数、花蕾宽和单花鲜重等4个性状,以关联度为权重建立了单株产花量综合选择指数模型:I=0.3187x1-318.6164x2+670.1262x4+6.3474x8,指数遗传力=0.8014,综合育种值选择进展ΔH=245.8811,该研究结果对今后玫瑰高产花量品种的选育具有指导意义。 展开更多
关键词 玫瑰(Rosa RUGOSA Thunb.) 灰色关联度 数量性状 KRIGING插值 选择指数
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界面活化的溶胶凝胶包埋Candida rugosa脂肪酶催化合成维生素E琥珀酸酯 被引量:7
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作者 胡燚 蒋相军 +2 位作者 吴素文 江凌 黄和 《催化学报》 SCIE EI CAS CSCD 北大核心 2013年第8期1608-1616,共9页
采用界面活化的溶胶凝胶包埋Candida rugosa脂肪酶(CRL)催化合成了维生素E琥珀酸酯. 考察了影响溶胶凝胶包埋固定化CRL的因素, 获得的最佳固定化条件为: 丙基三甲氧基硅烷/正硅酸四乙酯摩尔比为1/1, 水与硅烷前体摩尔比为15, 酶的添加量... 采用界面活化的溶胶凝胶包埋Candida rugosa脂肪酶(CRL)催化合成了维生素E琥珀酸酯. 考察了影响溶胶凝胶包埋固定化CRL的因素, 获得的最佳固定化条件为: 丙基三甲氧基硅烷/正硅酸四乙酯摩尔比为1/1, 水与硅烷前体摩尔比为15, 酶的添加量为0.5mg/ml, PEG400的添加量为12μl/ml溶胶. 溶胶凝胶包埋的CRL在50℃, 18h后其活性仍然保持了70.58%, 是游离酶的2.6倍,且稳定性得到了明显的改善. 基于CRL的界面特性, 采用五种表面活性剂对其进行界面活化. 结果表明, 采用橄榄油活化的溶胶凝胶包埋的CRL合成维生素E琥珀酸酯的酯化活力最高, 相比原酶和未界面活化的溶胶凝胶包埋酶分别提高了6.7和1.43倍. 展开更多
关键词 溶胶凝胶 界面活化 CANDIDA rugosa脂肪酶 维生素E琥珀酸酯
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表面活性剂包衣的固定化脂肪酶在有机介质中催化酯化反应 被引量:5
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作者 宋宝东 邢爱华 +2 位作者 吴金川 王世昌 张敏卿 《化学工程》 CAS CSCD 北大核心 2004年第5期50-52,共3页
以大孔吸附树脂为载体,将来源于Candidarugosa的脂肪酶用吸附法固定化后用谷氨酸双十二烷基酯核糖醇进行包衣,用于在有机溶剂中催化月桂酸和月桂醇的酯化反应。结果表明,AB 8型大孔吸附树脂为最佳载体,最适有机溶剂为异辛烷,酶固定化后... 以大孔吸附树脂为载体,将来源于Candidarugosa的脂肪酶用吸附法固定化后用谷氨酸双十二烷基酯核糖醇进行包衣,用于在有机溶剂中催化月桂酸和月桂醇的酯化反应。结果表明,AB 8型大孔吸附树脂为最佳载体,最适有机溶剂为异辛烷,酶固定化后再包衣,酶的比活较未包衣前提高了60%—90%。 展开更多
关键词 脂肪酶 CANDIDA RUGOSA 固定化 表面活性剂 有机溶剂 酯化
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有机相脂肪酶催化合成脂质体修饰物胆固醇癸二酸单烯酯 被引量:7
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作者 聂华 郑品劲 +1 位作者 罗利华 程怡 《中草药》 CAS CSCD 北大核心 2013年第23期3289-3295,共7页
目的在非水相中利用酶法合成胆固醇癸二酸单烯酯,并对其最优合成工艺条件进行研究。方法利用TLC、MS和NMR法对合成产物进行结构鉴定;通过正交试验对合成处方工艺进行优化。结果最佳反应条件为胆固醇与癸二酸二乙烯酯物质的量之比为1∶6,... 目的在非水相中利用酶法合成胆固醇癸二酸单烯酯,并对其最优合成工艺条件进行研究。方法利用TLC、MS和NMR法对合成产物进行结构鉴定;通过正交试验对合成处方工艺进行优化。结果最佳反应条件为胆固醇与癸二酸二乙烯酯物质的量之比为1∶6,Candida rugosa Lipase 10 mg/mL,异辛烷5 mL,温度35℃,反应时间24 h。结论该条件下酯化率可达95%以上。 展开更多
关键词 胆固醇 去唾液酸糖蛋白受体 酶催化 CANDIDA RUGOSA LIPASE 胆固醇癸二酸单烯酯
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微波辅助提取玫瑰花红色素工艺的优化 被引量:14
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作者 樊爱萍 刘卫 吴荣书 《安徽农业科学》 CAS 北大核心 2011年第14期8336-8338,共3页
[目的]优化微提取玫瑰花(Rosa rugosa Thunb)红色素的工艺。[方法]以云南高原食用玫瑰为原料,在单因素试验的基础上,通过正交试验优化微波提取工艺。[结果]微波提取玫瑰花色素的最佳工艺为:微波功率为560 W,提取时间为35 s,料液比为1∶5... [目的]优化微提取玫瑰花(Rosa rugosa Thunb)红色素的工艺。[方法]以云南高原食用玫瑰为原料,在单因素试验的基础上,通过正交试验优化微波提取工艺。[结果]微波提取玫瑰花色素的最佳工艺为:微波功率为560 W,提取时间为35 s,料液比为1∶5,提取溶剂为40%乙醇。在最佳工艺条件下,玫瑰花红色素提取率达到81.6%,提取收率达到3.6%。[结论]微波提取技术可较好地提取玫瑰红色素。 展开更多
关键词 微波辅助提取 玫瑰花(Rosa RUGOSA Thunb) 红色素
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酶法拆分(±)-N-(2,6-二甲苯基)-丙氨酸甲酯 被引量:9
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作者 黄丽琴 陈道文 杨红 《有机化学》 SCIE CAS CSCD 北大核心 2005年第12期1575-1579,共5页
用脂肪酶Candidarugosalipase(CRL)拆分(±)-N-(2,6-二甲苯基)-丙氨酸甲酯,并进一步优化反应条件.结果表明,在加入1mmolN-(2,6-二甲苯基)-丙氨酸甲酯、100mL的0.2mol/L磷酸缓冲液中,CRL拆分该底物的最适反应条件为:pH6.4,CRL脂酶250... 用脂肪酶Candidarugosalipase(CRL)拆分(±)-N-(2,6-二甲苯基)-丙氨酸甲酯,并进一步优化反应条件.结果表明,在加入1mmolN-(2,6-二甲苯基)-丙氨酸甲酯、100mL的0.2mol/L磷酸缓冲液中,CRL拆分该底物的最适反应条件为:pH6.4,CRL脂酶250mg,聚乙二醇(PEG)2g,转速160r?min-1,温度35℃.其中酶量、温度对转化率影响较大.反应后分离得R-(+)-N-(2,6-二甲苯基)-丙氨酸甲酯.它和酰氯反应可制备一系列旋光性N-酰基丙氨酸类杀菌剂. 展开更多
关键词 N-(2 6-二甲苯基)-丙氨酸甲酯 CANDIDA RUGOSA lipases 拆分 转化率 反应速度
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NaCl胁迫对玫瑰精油芳香成分及含量的影响 被引量:2
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作者 冯立国 陈功 +1 位作者 巴金磊 生利霞 《湖北农业科学》 2016年第13期3364-3367,共4页
以紫枝玫瑰(Rosa rugosa‘Zi zhi’)为试验材料,采用同时蒸馏萃取和气相色谱-质谱联用技术,研究了不同浓度Na Cl胁迫处理对玫瑰精油香气成分及含量的影响。结果表明,无胁迫的清水处理(0 mmol/L)共检出31种香气成分,25 mmol/L和50 mmol/... 以紫枝玫瑰(Rosa rugosa‘Zi zhi’)为试验材料,采用同时蒸馏萃取和气相色谱-质谱联用技术,研究了不同浓度Na Cl胁迫处理对玫瑰精油香气成分及含量的影响。结果表明,无胁迫的清水处理(0 mmol/L)共检出31种香气成分,25 mmol/L和50 mmol/L处理分别检出35和42种香气成分,而100 mmol/L处理香气成分仅为20种;50 mmol/L处理醇类、醛类、酯类、酚类、萜烯类和烷烃类化合物总量均低于25mmol/L处理,只有酸类化合物总量略有增加。总体上,虽然轻度和中度Na Cl胁迫会降低玫瑰精油中各香气成分的含量,但其种类更加丰富,精油品质并未受到影响。 展开更多
关键词 玫瑰(Rosa RUGOSA Thunb.)精油 NACL胁迫 芳香成分 含量
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不同花轴茎切面对玫瑰鲜切花保鲜效果的影响 被引量:2
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作者 李鹏林 《湖北农业科学》 2015年第13期3224-3226,共3页
对玫瑰(Rosa rugosa Thunb.)鲜切花的花轴茎底端进行简易的物理机械切面处理,从常规平切、斜切、十字切、四面锥形切、碎切5种方式对玫瑰切花的保鲜效果进行了试验。结果表明,玫瑰鲜切花以十字切处理保鲜效果较好,其花轴茎可以保... 对玫瑰(Rosa rugosa Thunb.)鲜切花的花轴茎底端进行简易的物理机械切面处理,从常规平切、斜切、十字切、四面锥形切、碎切5种方式对玫瑰切花的保鲜效果进行了试验。结果表明,玫瑰鲜切花以十字切处理保鲜效果较好,其花轴茎可以保鲜lOd以上,叶片可以保鲜10~15d,花瓣可以保鲜lOd左右。 展开更多
关键词 玫瑰(Rosa RUGOSA Thunb.)鲜切花 花轴茎 切花方式 保鲜效果
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藿香中一种新的二萜类物质的分离及其结构表征
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作者 田光辉 刘存芳 +2 位作者 赖普辉 孙志锋 赵桦 《安徽农业科学》 CAS 北大核心 2011年第30期18774-18776,18942,共4页
[目的]对秦巴山区野生藿香枝叶中萜类物质进行了提取和分离,并对其萜类物质的结构进行了研究。[方法]用浓度95%的乙醇对藿香枝叶粉末进行浸提,并将所得浸膏分散在水相中,依次用石油醚、乙酸乙酯和正丁醇进行萃取,将所得的乙酸乙酯萃取... [目的]对秦巴山区野生藿香枝叶中萜类物质进行了提取和分离,并对其萜类物质的结构进行了研究。[方法]用浓度95%的乙醇对藿香枝叶粉末进行浸提,并将所得浸膏分散在水相中,依次用石油醚、乙酸乙酯和正丁醇进行萃取,将所得的乙酸乙酯萃取物用硅胶柱层析梯度洗脱法分离其中的萜类物质;运用薄层色谱、红外光谱、紫外光谱、核磁共振谱等现代光谱技术对所得的萜类物质结构进行表征,并采用单晶X-衍射技术确定其晶体分子的构型和构象。[结果]从藿香中分离得到一种新的化合物。该二萜类物质是Longikaurin D,其晶体属于orthorhombic晶系,P2(1)2(1)2(1)空间群,晶胞参数a=0.845 1(4)nm,b=1.061 5(5)nm,c=2.237 1(10)nm,α=β=γ=90.00°,Mr=404.43,V=2.007(16)nm3,Dc=1.352 mg/m3,Z=4,F(000)=872,μ=0.103/mm,R1=0.076 7,ωR2=0.146 8。[结论]首次从在藿香中分离出二萜类物质Longikaurin D,为开发和利用藿香中的萜类物质提供科学依据。 展开更多
关键词 藿香(Agastache rugosa(Fisch.et Mey.)O.Ktze.) 二萜类 Longikaurin D 结构表征
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Diterpenoids from the Roots of Agastache rugosa 被引量:1
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作者 邹忠梅 于德泉 丛浦珠 《Journal of Chinese Pharmaceutical Sciences》 CAS 1997年第3期3-6,共4页
Agastol (2), a new diterpene, was isolated from the roots of Agastache rugosa together with its isomer, named isoagastol (3) Their structures were established on the basis of spectral methods The structures of aga... Agastol (2), a new diterpene, was isolated from the roots of Agastache rugosa together with its isomer, named isoagastol (3) Their structures were established on the basis of spectral methods The structures of agastol (2) and isoagastol (3) was elucidated as 11,14 dihydroxy 12 methoxy 19(4→3) abeo abieta 4(18),8,11,13 tetraen 7 one and 11,14 dihydroxy 12 methoxy 19(4→3) abeo abieta 3,8,11,13 tetraen 7 one Isoagastol was isolated for the first time from natural sources 展开更多
关键词 Agastache rugosa LABIATAE DITERPENOIDS Agastol Isoagastol
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海藻糖对脂肪酶的保护机理及酶失活动力学 被引量:6
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作者 张东浩 白姝 孙彦 《生物加工过程》 CAS CSCD 2006年第1期50-53,64,共5页
采用自制的磁性固定化酶(MIE),考察了高温下二糖类对酶的保护作用。结果显示:海藻糖对悬浮于水溶液中的MIE没有保护作用;而在高温干燥后,对酶的保护作用效果依次为:海藻糖>乳糖>蔗糖,支持‘玻璃态学说’;此外,采用两步失活动力学... 采用自制的磁性固定化酶(MIE),考察了高温下二糖类对酶的保护作用。结果显示:海藻糖对悬浮于水溶液中的MIE没有保护作用;而在高温干燥后,对酶的保护作用效果依次为:海藻糖>乳糖>蔗糖,支持‘玻璃态学说’;此外,采用两步失活动力学模型能够较好的拟合酶的失活过程,并且得到酶的失活速率常数k和半衰期t1/2,加入海藻糖和乳糖之后,MIE的半衰期分别增长了31和23倍。 展开更多
关键词 CANDIDA RUGOSA LIPASE 磁性固定化酶 海藻糖 热失活动力学
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外源茉莉酸甲酯处理对玫瑰花香成分及含量的影响 被引量:13
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作者 周金鑫 魏恬恬 +2 位作者 袁晓雨 冯立国 生利霞 《分子植物育种》 CAS CSCD 北大核心 2019年第14期4776-4784,共9页
玫瑰是中国重要的观赏和经济兼用植物,由其鲜花提取的玫瑰精油被誉为液体黄金,经济和保健价值极高。本研究以中国玫瑰主栽品种‘平阴一号’为试材,使用0.25%茉莉酸甲酯溶液喷洒玫瑰植株后,采用顶空固相微萃取(HS-SPME)和气相色谱-质谱... 玫瑰是中国重要的观赏和经济兼用植物,由其鲜花提取的玫瑰精油被誉为液体黄金,经济和保健价值极高。本研究以中国玫瑰主栽品种‘平阴一号’为试材,使用0.25%茉莉酸甲酯溶液喷洒玫瑰植株后,采用顶空固相微萃取(HS-SPME)和气相色谱-质谱联用技术(GC-MS)分析其不同发育时期花朵香气成分及含量的变化。结果表明,茉莉酸甲酯溶液处理后,花蕾期、半开期和盛开期的玫瑰花香气成分释放总量均明显增加,尤其是在半开期,香茅醇、乙酸苯乙酯、乙酸香茅酯和乙酸香叶酯等主要香气成分的含量增加两倍以上,说明外源茉莉酸甲酯对玫瑰花香成分的释放具有明显促进作用,这为后续在生产上通过喷施茉莉酸甲酯来增加玫瑰香气成分的含量,进而提高玫瑰精油的产量,提升玫瑰精油的品质提供了重要的理论依据。 展开更多
关键词 玫瑰(Rosa rugosa) 香气成分 含量 茉莉酸甲酯
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The Grey Analysis, Kriging and Selection Index of Flower Yield in Rugosa Rose 被引量:6
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作者 LI Yan-yan FENG Zhen ZHAO Lan-yong MO Zhen-hua ZHANG Bao 《Agricultural Sciences in China》 CAS CSCD 2007年第12期1420-1425,共6页
The analysis of grey system, kriging interpolation, and integration selection index were employed to investigate the relationships between the flower yield/plant (FY) and 15 other quantitative traits of 20 rugosa ro... The analysis of grey system, kriging interpolation, and integration selection index were employed to investigate the relationships between the flower yield/plant (FY) and 15 other quantitative traits of 20 rugosa rose cultivars. The result showed that: The grey relational grade (GRG) of the number of flowers/plant (NF), the number of branches/plant (NB), the width of floral bud (WB), and the weight/flower (WF) to the FY were larger (〉 0.5); FY improved with the increase of NF and NB. Moreover, the indirect selection of either trait could not achieve improvement of FY. It is necessary to improve FY by multi-trait selection. The integration selection index (ISI) equation of FY was established with the characters NF, NB, WB, and WF: I= 0.3187x1 - 318.6x2 + 670.1 x4 + 6.3xa, index heritability = 0.8014, selective response of the integration breeding value = 245.8811. This will provide a theoretic basis for the genetic breeding of rugosa rose. 展开更多
关键词 rugosa rose grey relational grade quantitative traits kriging interpolation index selection
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