Ancient Chinese herbal texts as far back as the 4th Century Zhou hou bei ji fang describe methods for the use of Qing Hao (Artemisia annua) for the treatment of intermittent fevers. Today, the A. annua constituent artemisinin is an important antimalarial drug and the herb itself is being grown and used locally for malaria treatment although this practice is controversial. Here we show that the ...

Pyrrolizidine alkaloids (PAs) are found in various plant genera worldwide. Poisoning by PA-containing plants is usually accidental, by the ingestion of grain inadvertently contaminated with seeds of pyrrolizidine-containing weeds, or the consumption of herbal or bush tea, or when taken as herbal infusions for medicinal purposes. In this paper the toxicity of PA-containing plants, with emphasis ...

Hawk tea (Litsea coreana var. lanuginose) is a very popular herbal tea in the southwest of China. According to the maturity degree of raw materials, Hawk tea can usually be divided into three types: Hawk bud tea (HB), Hawk primary leaf tea (HP), and Hawk mature leaf tea (HM). In this study, some of the bioactive constituents and antioxidant properties of the three kinds of Hawk tea infusions we...

Herbal teas was are widely consumed by people around the world have high antioxidant activities. The flavor and color combination of specific enriches aroma appearance tea, producing a tea with fresh tastier flavor. This study determines activity telang flower (Clitoria ternatea), pineapple (Ananas comosus), formula called TeNan. activities herbal were measured 2,2 Diphenyl-1-picrylhydrazyl (DP...

Nature has bestowed on us a very rich botanical wealth and a large number of assorted types of plants grown in different parts of country. Plants are the richest resource of drugs in traditional systems of medicine. Green tea is one of the most ancient and popular therapeutic beverages consumed around the world. Green tea in its purest form has always influenced human health from generations an...

The acute effect of herbal tea dust extracts on lung function was studied in 15 of 25 healthy subjects responding to the inhalation of these extracts. Bronchial inhalation challenge was performed with tea extracts (sage, dog rose and gruzyan) and with normal saline solution as a control substance to assess their baseline airway reactivity to an isotonic aerosol. Lung function testing was perfor...

In recent years, individuals have begun to tend more frequently to some natural and herbal products to be used alone or as a combination with diet and exercise for ensuring the weight loss. Green tea is the leading one of these products. In some studies, it is reported that the green tea causes an increase in thermogenesis and substrate with fat oxidation by affecting on the sympathetic nervous...

ABSTRACT: To help meet the needs of consumers, producers of dietary tea supplements, and researchers for information on health-promoting tea compounds, we compared the following conditions for the extraction of tea leaves and green tea-containing dietary supplements: 80% ethanol/water at 60 ◦C for 15 min and boiled water for 5 min. The following 7 catechins, 4 theaflavins, and 3 alkaloids were ...

backgrounds and objective: kombucha is a several thousand years old traditional fermented beverage originated from east. while black tea infusion is the common substrate for preparing kombucha, other herbal infusions can be applied for this reason too. common medicinal herbs or even waste herbal materials, like banana peel, could be suitable substrates for preparing kombucha analogues. in this ...

Membrane Assisted Solvent Extraction (MASE) was applied as an extraction and enrichment technique of polycyclic aromatic hydrocarbons (PAHs) from tea infusions fruit/herbal-tea beverages. PAHs have been separated detected by high performance liquid chromatography coupled to a fluorescence detector (HPLC-FLD). Variables affecting MASE comprising temperature time, stirring rate, acceptor solvent ...