Literatura científica selecionada sobre o tema "Echinacea spp"
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Artigos de revistas sobre o assunto "Echinacea spp":
Ghedira, K., P. Goetz, R. Lejeune e D. Wuyts. "Echinacea spp. (Asteraceae)". Phytothérapie 6, n.º 5 (outubro de 2008): 306–11. http://dx.doi.org/10.1007/s10298-008-0337-8.
Pospelov, Sergey, Viacheslav Zdor, Oleg Mishchenko, Anna Pospelova e Ninel Kovalenko. "Model of creation of productive agrocenosis of Echinacea". E3S Web of Conferences 222 (2020): 02048. http://dx.doi.org/10.1051/e3sconf/202022202048.
Rogers, K. L., I. D. Grice, C. J. Mitchell e L. R. Griffiths. "High performance liquid chromatography determined alkamide levels in Australian-grown Echinacea spp". Australian Journal of Experimental Agriculture 38, n.º 4 (1998): 403. http://dx.doi.org/10.1071/ea98001.
Sorokin, O., A. Panova e M. Subotyalov. "The immunomodulatory and antiviral potential of Echinacea spp." Vrach 32, n.º 7 (2021): 51–55. http://dx.doi.org/10.29296/25877305-2021-07-08.
Pellati, Federica, Stefania Benvenuti, Lara Magro, Michele Melegari e Fabrizia Soragni. "Analysis of phenolic compounds and radical scavenging activity of Echinacea spp." Journal of Pharmaceutical and Biomedical Analysis 35, n.º 2 (abril de 2004): 289–301. http://dx.doi.org/10.1016/s0731-7085(03)00645-9.
Russi, Luigi, Chiaraluce Moretti, Lorenzo Raggi, Emidio Albertini e Egizia Falistocco. "Identifying commercially relevant Echinacea species by AFLP molecular markers". Genome 52, n.º 11 (novembro de 2009): 912–18. http://dx.doi.org/10.1139/g09-066.
Handy, Sara M., Rahul S. Pawar, Andrea R. Ottesen, Padmini Ramachandran, Satyanarayanaraju Sagi, Ning Zhang, Erica Hsu e David L. Erickson. "HPLC-UV, Metabarcoding and Genome Skims of Botanical Dietary Supplements: A Case Study in Echinacea". Planta Medica 87, n.º 04 (14 de janeiro de 2021): 314–24. http://dx.doi.org/10.1055/a-1336-1685.
Castle, Lisa Marie, Susan Leopold, Rachel Craft e Kelly Kindscher. "Ranking Tool Created for Medicinal Plants at Risk of Being Overharvested in the Wild". Ethnobiology Letters 5 (30 de maio de 2014): 77–88. http://dx.doi.org/10.14237/ebl.5.2014.169.
Heidari, S., R. Fotouhi Ghazvini, M. Kafi e M. Zavareh. "Effect of drought stress on some morphological and physiological characteristics of Echinacea spp." Acta Horticulturae, n.º 1315 (julho de 2021): 445–52. http://dx.doi.org/10.17660/actahortic.2021.1315.66.
Rizzello, Carlo, Rossana Coda, Davinia Macías, Daniela Pinto, Barbara Marzani, Pasquale Filannino, Giammaria Giuliani, Vito Paradiso, Raffaella Di Cagno e Marco Gobbetti. "Lactic acid fermentation as a tool to enhance the functional features of Echinacea spp". Microbial Cell Factories 12, n.º 1 (2013): 44. http://dx.doi.org/10.1186/1475-2859-12-44.
Teses / dissertações sobre o assunto "Echinacea spp":
Liu, Rui. "Pharmacology and Toxiclogy of Echinacea, Souroubea and Platanus spp". Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39309.
Spelman, Kevin. "The extraction, stability, metabolism and bioactivity of the alkylamides in Echinacea spp". Thesis, University of Exeter, 2009. http://hdl.handle.net/10036/86198.
Pallová, Jana. "Příprava a charakterizace extraktů echinacey". Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-449758.
Zhang, Shih-Chan, e 張世政. "Production and Quality Evaluation in Echinacea spp. Grown in Taiwan". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/99661492122717040010.
國立中興大學
農藝學系
93
Summary Echinaeca, also known as the purple coneflower, is a traditional North American perenial medicinal herb that has gained popularity in recent years through claims that it beneficially stimulates the human immune system. The increasing popularity of Echinacea products has led to the expansion of wildcrafting and commercial cultivation to meet the growing demand for plant material. Collection of wild plant, however, does not provide the uniform plant material necessary for standardized drugs and over-harvest of plants can destroy wild population. Thus, programs for developing purple coneflower for cultivation should be initiated. Introduction of a species into cultivation requires screening plant materials suitable for local environment and an understanding of agronomic characteristics that lead to high yields. Therefore, as part of the cultivar breeding program for Echinacea purpurea at the Department of Agronomy in Chung-Hsing University, Taichung, Taiwan, efforts were made to determine the best species suitable for Taiwan cultivation and time for plant harvest to ensure high yields and high concentration of active constituents. In species/cultivars screening test, Echinacea purpurea, Echinacea paradoxa, Echinacea purpurea cv. Magnus, and Echinacea purpurea cv. White Swan were introduce to evaluate their growth potential and phytochemical level in different plant parts. Samples (10 plants or more) were collected for determination of plant height, shoots number per plant, flowering heads per plant, flower dry weight, stems dry weight, leaves dry weight, rhizomes dry weight, root dry weight, aerial parts yield, and ground parts yield. HPLC method was used for analysis of various phenolic compounds and alkamide 8/9 in Echinacea species. The results were analyzed for statistically significant difference by the procedures of SAS/GLM. Screening data show that plant performances and total plant production in E. purpurea was significantly greater than the others, but roots yield in E. paradoxa was highest among them. In E. purpurea, E. purpurea cv. Magnus, and E. purpurea cv. White Swan, cichoric acid was the main phenolic compounds in roots, leaves, and flowers, but echinacoside and alkamide 8/9 were the major phytochemicals in E. paradoxa roots, leaves, and flowers. Caftaric acid was the other main phenolic compound in E. purpurea, E. purpurea cv. Magnus, and E. purpurea cv. White Swan roots and tops. Flowers contained the most total caffeic acid derivatives, total phenolics and alkamide 8/9 of all the sampled tissues, except in E. purpurea cv. White Swan roots. The yield and content of active compounds in Echinacea purpurea (L.) Moench. were studied to define the best harvest time. Plant roots, stems, leaves, and flowers were collected from three growing season at seed-filling stage in perennial cultivation. Plant performances and yields were highest for the 1-year old plants harvested at summer season followed by the 0.5-year and 1.5-year old plants harvested at winter season. However, concentration of phenolic compounds in leaves and flowers were higher for winter harvested plants than summer harvested plants. In 0.5-year and 1.5-year old plants harvested at winter season, flowers contained the most total caffeic acid derivatives and total phenolics of all the sampled tissues, although leaf blades also contained relatively large concentrations. Cichoric acid was the major phenolic in E. purpurea leaves (mean 4.03% first growing season, 0.63% second growing season, 2.93% third growing season) and flowers (mean 9.49% first growing season, 8.59% second growing season, 9.48% third growing season). Caftaric acid was the other main phenolic compound in E. purpurea leaves (mean 2.06% first growing season, 0.67% second growing season, 1.59% third growing season) and flowers (mean 2.39% first growing season, 2.37% second growing season, 2.50% third growing season).
Lin, Tsu Che, e 林資哲. "The Analysis of Caffeic Acid Derivatives and Antioxidant Capacity in Echinacea spp". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/07227738182618870040.
國立中興大學
農藝學系
91
Summary Echinacea, also known as the purple coneflower, is an herbal medicine that has been used for centuries, customarily as a treatment for the common cold, coughs, bronchitis, upper respiratory infection, and some inflammatory conditions. Echinacea research is currently conducted in many countries but there are totally absent in Taiwan. In this study, dried root and aerial samples of Echinacea angustifolia, Echinacea pallida, and Echinacea purpurea grown in Taiwan were analyzed for the total antioxidant capacity and medicinally active constituents, caffeic acid derivatives and total phenolic acids. The results summary as follows: 1.Different drying methods were applied to fresh harvested Echinacea purpurea roots, stems, leaves and flowers to determine optimal drying procedures for preserving caffeic acid derivatives. To preserve higher levels of caffeic acid derivatives, freeze-dried was found to be the best method. 2.Comparisons the extract methods were showed that ultrasonic extraction twice of dried samples with 70% methanolic solution gave good yields of caffeic acid derivatives and total phenolics (recovery about 95%). Sonication obtained more phenolic compounds than shaking during extraction. 3.Methanol extracts of freeze-dried Echinacea (E. angustifolia, E. pallida, and E. purpurea) roots and various aerial parts were examined for total antioxidant capacities and medicinally constituents. Total antioxidant capacities, total phenolic contents, and caffeic acid derivative levels differed significantly among roots, stems, leaves, flowers and seeds. Significant differences in those characters also found among Echinacea species. Aerial samples (except seeds) contained more phenolic acid derivatives than root and rhizome. 4.Caffeic acid derivatives differed between flower developmental stages and petal were distinguished from other plant parts by higher levels of the cichoric acid. The cichoric acid concentration in ligulate florets was 70-80 mg/g. 5.Ethanolic extracts of freeze-dried roots for two days could obtain maximum concentration of caffeic acid derivatives. Enzymatic deterioration during long time extraction would reduce the measured levels of phenolic compounds, whereas extract infiltration could preserve the constituents.
Capítulos de livros sobre o assunto "Echinacea spp":
Goetz, Paul, e Kamel Ghedira. "Echinacea spp. (Asteraceae): Échinacées". In Collection Phytothérapie Pratique, 259–70. Paris: Springer Paris, 2012. http://dx.doi.org/10.1007/978-2-8178-0058-5_16.
Parnham, Michael J. "Benefit and risks of the squeezed sap of the purple coneflower (Echinacea purpurea) for long-term oral immunostimulant therapy*". In Immunomodulatory Agents from Plants, 119–35. Basel: Birkhäuser Basel, 1999. http://dx.doi.org/10.1007/978-3-0348-8763-2_5.