Abstract
Stinging nettle (Urtica dioica L.) is a perennial plant belonging to the Urticaceae family. Several studies have reported the presence of the different classes of chemical compounds, which expressed a beneficial effect on human health. Among them there are elements and minerals that are essential for the proper functioning of organism. Mineral occurrence requires analytical data about the content. For such purposes was developed and validated a method based on the optical emission spectroscopy coupled with inductively coupled plasma (ICP-OES). Minerals and elements were extracted using two conventional methods (Soxhlet and maceration) and two non-conventional (ultrasound- and microwave-assisted techniques). The extracts were analyzed resulting in high diversity in the composition. Non-conventional techniques showed better results, since those extracts possessed high content of the macroelements and iron as well, instead the toxic elements were found in trace amount
Highlights
Stinging nettle (Urtica dioica L.) is a perennial plant from the Urticaceae botanical family.This plant is widely distributed and native to Europe, Asia, North Africa, and North America.It is known for its application in folk medicine, where it has been used for the treatment of various diseases and disorders [1,2]
Recent studies have shown the presence of different classes of compounds, e.g., terpenoids [3,4], carotenoids [3,5,6], fatty acids [2,3,6,7,8], phenolic, and polyphenolic compounds [1,3,9,10,11], amino acids, chlorophyll, vitamin C, vitamin K, vitamins B series, tannins, carbohydrates, sterols, polysaccharides, isolectins [1,3,5,12], as well as minerals [3,13,14]
Taking into account the importance of this plant, as well as its chemical composition, this study aims to develop a method for determination of the minerals in the extracts of stinging nettle leaves, and their analysis by inductively coupled plasma optical emission spectroscopy (ICP-OES)
Summary
Stinging nettle (Urtica dioica L.) is a perennial plant from the Urticaceae botanical family.This plant is widely distributed and native to Europe, Asia, North Africa, and North America.It is known for its application in folk medicine, where it has been used for the treatment of various diseases and disorders [1,2]. Stinging nettle (Urtica dioica L.) is a perennial plant from the Urticaceae botanical family. This plant is widely distributed and native to Europe, Asia, North Africa, and North America. It is known for its application in folk medicine, where it has been used for the treatment of various diseases and disorders [1,2]. It is worth mentioning that stinging nettle is very rich in iron (leaves contain about 150 mg/kg), while some important fatty acids, e.g., palmitic, cis-9,12 linoleic and a-linolenic acids, are detected [3]. The chemical profile of the stinging nettle’s leaves explains the wide range of biological activity
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