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1.
Food Chem ; 366: 130576, 2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-34348222

RESUMO

Cinnamon oil is obtained by steam distillation from cinnamon leaves and is usually considered highly cost-effective compared to bark oil, however, which results in tons of waste cinnamon leaves (WCL) discarded annually. By using MS/MS molecular networking (MN) assisted profiling, six main chemical diversities including flavonols and flavones, phenolic acids, lactones, terpenoids, phenylpropanoids and flavanols were rapid revealed from WCL aqueous extract. 101 compounds were tentatively identified by assigning their MS/MS fragments within typical pathways under ESI-MS/MS dissociation. The featured phenolic acids, terpenoids and their glycosides in cinnamon species were recognized as the main constituents of WCL. The hydrophilic lactones, lignans and flavanols were reported for the first time in cinnamon leaves. Furthermore, ABTS and FRAP assays integrated with MN analysis were conducted to uncover an antioxidant fraction, from which 40 potential antioxidant compounds were rapidly annotated. This fundamental information will help expand the utilization of WCL from cinnamon oil industry.


Assuntos
Antioxidantes , Cinnamomum zeylanicum , Cromatografia Líquida , Extratos Vegetais , Espectrometria de Massas em Tandem
2.
J Ethnopharmacol ; 264: 113322, 2021 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-32871236

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The genus Melastoma consists of approximately 100 species distributed widely in tropical and subtropical countries, and Melastoma species are often used for medicinal purposes, such as treatment for bleeding, diarrhea, diabetes, and gynecological tumors by local people, mostly in Southeast Asian countries. AIM OF THE REVIEW: The present review summarizes the traditional uses, phytochemistry and pharmacology of species belonging to Melastoma to suggest further research strategies and to facilitate the exploitation of the therapeutic potential of Melastoma species for the treatment of human disorders. MATERIALS AND METHODS: Information related to the traditional uses, phytochemistry and pharmacological activities was systematically collected by searching for the word "Melastoma" in electronic databases, including SciFinder, Web of Science, PubMed, and Google Scholar, from Apr. 1968 until Dec. 2019. RESULTS: A systematic literature survey revealed that Melastoma spp. are widely distributed in southern Asia to northern Oceania and the Pacific Islands and are traditionally used to treat bleeding, diarrhea, swelling, and gynecological tumors. Approximately 142 compounds, including flavonoids, tannins, phenylpropanoids, organic acids, terpenoids, and steroids, have been reported from Melastoma spp. Different extracts have been evaluated for their pharmacological activities, including anti-inflammatory, hemostatic, anticoagulant, cytotoxic, antibacterial, antioxidant, hepatoprotective, gastroprotective and hypoglycemic activities. CONCLUSIONS: Melastoma spp. are popularly used in Southeast Asian countries as effective herbs and are rich in flavonoids, tannins and organic acids with valuable medicinal properties. However, additional studies of the chemical constituents and the mechanism-based pharmacological activities of many members of Melastoma are still needed for developing new plant-derived drugs. In addition, studies on the clinical safety and efficacy of Melastoma are also needed.


Assuntos
Etnofarmacologia/métodos , Medicina Tradicional/métodos , Melastomataceae , Compostos Fitoquímicos/uso terapêutico , Extratos Vegetais/uso terapêutico , Animais , Antibacterianos/isolamento & purificação , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Anticoagulantes/isolamento & purificação , Anticoagulantes/farmacologia , Anticoagulantes/uso terapêutico , Etnofarmacologia/tendências , Flavonoides/isolamento & purificação , Flavonoides/farmacologia , Flavonoides/uso terapêutico , Humanos , Medicina Tradicional/tendências , Compostos Fitoquímicos/isolamento & purificação , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/farmacologia
3.
Zhongguo Zhong Yao Za Zhi ; 45(12): 2792-2799, 2020 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-32627452

RESUMO

Cinnamomum cassis is one of the commonly used traditional Chinese medicines in China. Its genuine producing areas distribute in Guangdong and Guangxi provinces. As an important edible herb and export variety of China, the quality control and internationalization of quality standards of C. cassis is extremely significant. In the recent years, with the development of the cinnamon industry, relevant academic research and the upgrade of the international standards, it is necessary to summarize the quality-related progress of C. cassis. In the present review, the germplasm resources, specific quality marker(Q-marker) and quality standards of C. cassis were summarized on the basis of published research during the last 10 years.


Assuntos
Cinnamomum aromaticum , Cinnamomum , China , Cinnamomum zeylanicum , Medicina Tradicional Chinesa
4.
Planta Med ; 82(6): 539-43, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27002399

RESUMO

Obtusifolin, an anthraquinone from Cassia obtusifolia seeds, has been reported to reduce blood lipid levels in diabetic rats induced by streptozocin. However, it remains unclear whether obtusifolin possesses a lipid-lowering effect on hyperlipidemia caused by a high-fat diet. Moreover, hyperlipidemia is known to impair the endothelial function by causing oxidative stress. Therefore, in the present study, we investigated the antidyslipidemic and antioxidant effects of obtusifolin in hyperlipidemic rats induced by a high-fat diet. Rats with oral fat emulsion were used as our hyperlipidemic model. We measured the body weight of the rats, serum total cholesterol, triglycerides, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol, as well as nitric oxide, malondialdehyde, and superoxide dismutase. Our results showed that oral obtusifolin application significantly reversed the changes induced by hyperlipidemia in body weight, total cholesterol, triglyceride, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol. Furthermore, obtusifolin treatment increased serum superoxide dismutase and nitric oxide, but reduced malondialdehyde. Collectively, our findings suggest that obtusifolin may improve hyperlipidemia by enhancing antioxidant activity. This study indicates a potential therapeutic importance of obtusifolin for ameliorating lipid dysfunction induced by a high-fat diet.


Assuntos
Antraquinonas/farmacologia , Antioxidantes/farmacologia , Hiperlipidemias/dietoterapia , Lipídeos/sangue , Administração Oral , Animais , Antraquinonas/administração & dosagem , Peso Corporal/efeitos dos fármacos , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Dieta Hiperlipídica/efeitos adversos , Suplementos Nutricionais , Hiperlipidemias/sangue , Hiperlipidemias/etiologia , Masculino , Malondialdeído/sangue , Óxido Nítrico/sangue , Ratos Sprague-Dawley , Superóxido Dismutase/sangue , Triglicerídeos/sangue
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