Comparison of Volatile Constituents of Persicaria odorata (Lour.) Soják (Polygonum odoratum Lour.) and Persicaria hydropiper L. Spach (Polygonum hydropiper L.)

Abstract

Polygonum odoratum Lour. has been reclassified as Persicaria odorata (Lour.) Soják [Wilson, K. L. Polygonum sensu lato (Polygonaceae) in Australia. Telopea 1988, 3, 177-182]; other synonyms currently used are Vietnamese mint or Vietnamese coriander and, in Malaysia, Daun Laksa or Laksa plant. The aerial parts of Laksa plant are highly aromatic, and they contain many organic compounds such as (Z)-3-hexenal, (Z)-3-hexenol, decanal, undecanal, and dodecanal that are typical for green, citrus, orange peel, and coriander odors. In addition to these aldehydes, 3-sulfanyl-hexanal and 3-sulfanyl-hexan-1-ol were discovered for the first time in this herb. The fresh leaves are pungent when they are chewed, although the active compound has never been identified. The pungency of Persicaria hydropiper (L.) Spach (formerly Polygonum hydropiper L., synonym water pepper) is produced by polygodial, a 1,4-dialdehyde derived from drimane terpenoids. We also identified polygodial as the active pungent compound in P. odorata (Lour.) Soják.

In vitro and in vivo anti-inflammatory activities of Polygonum hydropiper methanol extract

“…Phytochemical characteristics of Ph-ME and the standard compound quercetin were identified by high performance liquid chromatography (HPLC) analysis (Starkenmann et al, 2006). The system was equipped with a KNAUER (Wellchrom HPLC-pump, K-1001, a Wellchrom fast scanning spectrophotometer K-2600, and a 4 channel degasser K-500).…”

Comparison of the chemical composition of three species of smartweed (genus Persicaria) with a focus on drimane sesquiterpenoids

“…Nearly 100 sesquiterpene drimanes derived from drimenol are known; they possess a wide variety of biological activities including antibacterial, antifungal, anti-nematode, antifeedant, piscicidal, and molluscicidal properties (Jansen and de Groot, 2004). Polygodial, as best known proponent of this group of sesquiterpenoids, is present in a few plant genera, such as the Cannellaceae genera Drymis (Munoz-Concha et al, 2007) and Tasmannia (Read and Menary, 2000) as well as in some species of the Persicaria genus (formerly known as Polygonum) (Starkenmann et al, 2006); in fact the presence or absence of polygodial in different Persicaria species is being proposed as a chemotaxonomic discriminant between different sub-groups of that genus (Derita and Zacchino, 2011). This dialdehyde has been also found in bryophytes and pteridophytes (Asakawa et al, 2001) and it is even synthesized by Mediterranean nudibranchs of the genus Dendrodoris, where it plays a role as fish antifeedant (Avila et al, 1991).…”

Combinatorial Synthesis by Nature: Volatile Organic Sulfur-Containing Constituents ofRuta chalepensis L.

“…The solvent extract was decanted after 10 h, dried (Na 2 SO 4 ), and concentrated to 10 ml in a Vigreux apparatus at 408. A 5-ml aliquot of this concentrate (C-1) was submitted to affinity chromatography on Affi-Gel 501 [10] [38]. The thiol fraction was carefully concentrated in a Vigreux apparatus to 0.1 ml and immediately submitted to GC/EI-MS analyses on SPB-1 and SPWax columns (injection volume 1 ml; closed split).…”