Tecoma stans (Dandelion wood) : medicinal properties in alcoholic extraction

Tecoma stans (Dandelion wood, Bwa-pisanli, Bois-pissenlit) — family Bignoniacées.

Scientific synonyms : Bignonia stans-L, B fruitescens-Miller ex. DC, Stenolobium stans-(L)-Seem, S incisum-Rose. & Stand., Tecoma incisa-SW, T. Mollis-HBK.

This database documents alcoholic (ethanol) extractions of active substances. Our monograph currently lists 23 indications in alcoholic extraction for this species. The Lapo v2 catalogue records 41 scientific references for this species (full detail in the application).

Important — scientific references on this public page: only a short excerpt of each cited source is shown (selected abstract sentences), kept in the original language of the publication (most often English), without translation. These excerpts are not the full article text and are not a complete bibliography. The full reference records and complete monographic detail are available in the Lapo v2 application (free 30-day trial).

1. 1

   Bacterial infection: Staphylococcus aureus, Enterococcus faecalis, Bacillus subtilis, Bacillus megaterium, Streptococcus mutans, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus vulgaris

   Plant part used: Flower.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to Pulipati S (2017)

     Excerpt The antimicrobial activity was carried against bacteria like Staphylococcus aureus, Enterococcus faecalis, Bacillus subtilis, Bacillus megaterium, Streptococcus mutans, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa & Proteus vulgaris by means of agar well diffusion method. Since plants are used as therapeutic agents, the present study is designed to evaluate the phytochemical profile and antimicrobial activities of flower of Tecoma stans (L.) ethanolic extract (TSEE) against selective Gram positive, Gram negative bacteria in-vitro.

   • According to Rajamurugan R (2013)

     Excerpt The ethanolic extract of flowers of this species showed strong antimicrobial activity also & was effective against tested bacteria (Bacillus subtilis, Escherichia coli, Staphylococcus aureus, Proteus mirabilis, Klebsiella pneumoniae) & fungi (Penicillium sp.). The aim of the present study was to screen phytochemicals, antioxidant & Antimicrobial activities of the extract from Tecoma stans flowers.

   • According to Iltaf S (2016)

     Excerpt Bacillus subtilis, Staphylococcus aureus & 2 Gram-negative bacteria, i.e. The current investigation was carried out to evaluate the antibacterial potential of different extracts (n-hexane, chloroform, ethanol & aqueous) of the leaves of Mansoa alliacea, Tecomaria capensis & Tecoma stans, belonging to family Bignoniaceae, using agar well diffusion method against 2 Gram-positive bacteria, i.e.

   • According to Al-Azzawi A (2022)

     Excerpt Tecoma stans is an ornamental perennial tropical and subtropical plant belonging to the Bignoniaceae family with green leaves and yellow attractive fragrance flowers and commonly known as yellow trumpetbush or yellow bells. Component A-3 showed antioxidant activity using the DPPH & ABTS methods; antifungal activities when tested against Candida albicans; & more than 80% inhibitions in the third dilution when compared to itraconazole & nystatin as positive controls.

   • According to SUBALAKSHIMI T (2017)

     Excerpt The antibacterial property of leaves of Tecoma stans, Ixora coccinea & Aerva lanata were studied against drug-resistant cattle pathogenic bacteria, Streptococcus sp a& Pseudomonas aeruginosa by agar well diffusion methods. Coccinea had the maximum antibacterial potential against streptococcus sp.

2. 2

   Type II diabetes mellitus

   Plant part used: Shaft.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to Garcia-Jimenez JR (2024)

     Excerpt This work aimed to assess the bioactive properties (antioxidant & hypoglycemic) of different extracts, including the infusion, as well as their spray-dried microencapsulates from Tecoma stans leaves. The encapsulated infusion with MD:AG had the highest hypoglycemic activity as it presented the lowest glycemic index(GI = 47).

   • According to ELOSH G (2013)

     Excerpt The present study is designed to investigate the antidiabetic activity of T stans stem extract in alloxan induced diabetic albino rats. The Glibenclamide 2.5mg /kg body weight once a day orally to the alloxan induced diabetic albino rats for 15 days by using an Intragastric tube which acts as standard.

   • According to Author (1926)

     Excerpt COLIN GG, Further observations on the antidiabetic properties of Tecoma mollis, J Amer.

   • According to HAMMOUDA Y (1971)

     Excerpt HAMMOUDA Y et al, Stability of Tecomine, the major antidiabetic factor of Tecoma stans Juss, J Pharm.

   • According to Gharib Naseri M.K (2007)

     Excerpt Tecoma Stans hydroalcoholic leaf extract (TLE) was prepared by macerated method using 70% alcohol. The antispasmodic effects of TLE (0.125-2 mg/ml) were studied prior & after 20-30 min incubation of ileum with propranolol (1µM), naloxone (1µM), L-NAME (100 µM), or 5 min incubation with Glibenclamide (10 µM) & tetraethyl ammonium (TEA, 1mM).

3. 3

   Cancer: adjuvant treatment for breast adenocarcinoma

   Plant part used: Stem bark.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to Thirumal M (2013)

     Excerpt The current study, evaluate Invitro Antiproliferative activity of ethanolic crude extract of root (ERETS), stem bark(ESETS) & flowers(EFETS) of Tecoma stans against Human Breast Cancer Cell lines (MCF-7) at different concentrations using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium Bromide (MTT) assay. Root, stem bark & flowers extracts showed significant antiproliferative activity in dose dependable manner on the cell lines (MCF-7) but maximum activity was found to be with ethanolic extract of stem bark of T stans (ESETS).

   • According to Anburaj G (2016)

     Excerpt The present study has been performed experimentally by in vitro method to examine the anticancer activity of bark of Tecoma stans. The human breast cancer cell line (Michigan Cancer Foundation-7 (MCF 7)) was obtained from National Centre for Cell Science (NCCS), Pune & grown in Eagles Minimum Essential Medium (EMEM) containing 10% fetal bovine serum (FBS).

   • According to Tchabewu Mbianda SW (2025)

     Excerpt This study aimed to investigate the cytotoxic, antiproliferative, and antimetastatic activities of TS leaves & flowers methanolic extract (TSLME & TSFME) on a highly metastatic MDA-MB-231 breast cancer cell line. TSLME & TSFME were used to assess their cytotoxic (Trypan Blue Exclusion Assay), antiproliferative (MTT Assay), & anti-metastatic activity (Wound Healing Assay) on the triple-negative breast cancer cell line MDA-MB-231, along with their impact on the morphology of metastatic cells.

Further indications (including other extraction modes where applicable), dosages, precautions for use, and the <strong>full scientific references</strong> (complete records, not only the short excerpts above) are available in the complete monographic record in the Lapo v2 application.