Rutin in herbs and infusions: screening of new sources and consumption estimation

Abstract

Rutin has shown promising results in reducing various human diseases. However, many plants consumed in Brazil do not have their rutin content reported in the literature yet. More than eighty plants were analyzed using aqueous (popularly known as tea) and ethanolic extraction (employed in commercial rutin purification) by liquid chromatography. Rutin was found in 47 samples when ethanol extraction was used. Echinodorus grandiflorus had the highest content (14,878.7 mg 1000 g-1), followed by Sambucus nigra, Drimys winteri and Taraxacum officinale. On aqueous infusion, Echinodorus grandiflorus, Sambucus nigra, Drimys winteri and Ruta graveolens presented the highest levels of rutin, ranging from 15.5 to 29.7 mg of rutin in 300 mL of infusion from 2 g of the plant. Echinodorus grandiflorus, Sambucus nigra, Drimys winteri, Taraxacum officinale and Ruta graveolens presented a high amount of flavonoid and might be good alternatives as ingredients in food and pharmaceuticals in order to obtain health benefits.

Bioaccessibility of phenolic compounds, antioxidant activity, and consumer acceptability of heat-treated quinoa cookies

“…This protective effect has been attributed to antioxidant activity, which is one of the most studied mechanisms of action (Paśko et al, 2019). Several studies have shown that phenolic compounds (e.g., ferulic, caffeic, vanillic, and gallic acids) and flavonoids (e.g., rutin, quercetin, kaempferol, myricetin, and hesperidin) may be responsible for this protective effect (Hernández-Ledesma, 2019;Li et al, 2019;Khursheed et al, 2020;Meinhart et al, 2020). Given its healthy properties, the consumption of quinoa has been increasing; it is now used in cookies, pasta, soups, beverages, porridges, and other foods and drinks (Xu et al, 2020;Yadav, 2020;Zhang et al, 2019;Demir & Kılınç, 2017).…”

A administração sistêmica de extratos de arnica é segura? Uma revisão sistemática de ensaios pré-clínicos

“…From a phytopharmaceutical technology point of view, the maceration process using an alcoholic solvent may lead to an enhanced extraction efficiency of both the phenolic acids and flavonoids, when compared to boiled water-based methods such as infusion and decoction (Llorent-Martínez et al, 2020;Meinhart et al, 2020). The higher yield of alcoholic extraction may be attributed to the intermediate eluotropic strength of methanol and ethanol (64.7 and 78.5, respectively) when compared to water ( 100), what therefore enhances the mass transfer of low molecular weight polyphenolic compounds (Stalikas, 2007) such as: caffeoylquinic acid derivatives; terpenes; glycoside flavonoids; and flavonoids.…”

Rutin-stevioside and related conjugates for potential control of grapevine trunk diseases

“…Micheli, Sambucus nigra L., Drimys winteri J.R.Forst. or Taraxacum officinale Weber ex Wiggins (Meinhart et al, 2020) may deserve further attention for large-scale field experiments. If plants rich in rutin and ferulic were preferred, the activity of the extracts from sea buckthorn (Hippophae Rhamnoides L.) (Criste et al, 2020), Rhinacanthus nasutus (L.) Kurz (Huang et al, 2015), Artemisia absinthium L., Achil-lea millefolium L., Sambucus nigra L. or Salvia officinalis L. (Bljajić et al, 2021) could be explored.…”