Objectives: To determine the relative quantities of two hepatotoxic pyrrolizidine alkaloids, symphytine and echimidine, in teas prepared from comfrey leaves (Symphytum officinale), and to determine the potential contribution of the Noxide forms of these alkaloids to levels of the parent alkaloids. Design: Comfrey leaves were purchased from three commercial sources and used to prepare tea in a m...

This study is aimed at assessing the inhibitory effect of teas on key enzymes (α-amylase and α-glucosidase) linked with type-2 diabetes and their antioxidant properties. Four samples of three brands were used; infusions of green tea (GT), 2 brands of black tea (BT), and a formulated herbal preparation for diabetes (ADT) (white tea, Radix Puerariae, Radix ophiopogonis, hawthorn berry, Chinese ya...

OBJECTIVES To determine the relative quantities of two hepatotoxic pyrrolizidine alkaloids, symphytine and echimidine, in teas prepared from comfrey leaves (Symphytum officinale), and to determine the potential contribution of the N-oxide forms of these alkaloids to levels of the parent alkaloids. DESIGN Comfrey leaves were purchased from three commercial sources and used to prepare tea in a ...

As a result of the wide distribution of herbal teas the data on nutritional characterisation, chemical profile and biological activity of these products are required. The decoctions of Gentiana algida, G. decumbens, G. macrophylla and G. triflora herb teas were nutritionally characterized with respect to their macronutrients, demonstrating the predominance of polysaccharides and low lipid conte...

Both Origanum vulgare L. subsp. vulgare and O. vulgare subsp. hirtum (Link) Ietsw. occur in the Rhodopes in different habitats. Collection of O. v. subsp. hirtum is forbidden for trade purposes in Bulgaria by law. The aim of this study is to trace the traditional use and collection of both subspecies in the Rhodopes therefore ethnobotanical survey was carried out. O. vulgare was one of the most...

This review aims to compile biological activity including antioxidant, anti-microbial, and anti-inflammatory properties of Thunbergia laurifolia or Rang Jued in Thai. Thais has been using this plant as folk medicine since ancient times. T. laurifolia is recognized mainly for its detoxification property, however, recently anti-inlammatory, antioxidant, anti-microbial, hepatoprotective and anti-d...

Traditional herbalists in Nigeria use various herbal preparations to treat various types of ailments, including diarrhoea, cough, 'neonatal fistula', convulsions, skin diseases, etc. (1). Most of these preparations are used in the form of concoctions (soup or drink made usually from ingredients after boiling) or infusions (soaking the plant material and allowing it to stand for varying lengths ...