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Family Leguminosae / Fabaceae
Fire tree
Delonix regia (Hook.) Raf.
FLAMBOYANT TREE
Hong hua ying

Scientific names Common names
Delonix regia (Hook.) Raf. Fire tree (Engl.)
Poinciana regia Hook. Flambouyant tree (Engl.)
  Flamboyant (Engl.)
  Flame tree (Engl.)
  Gold mohn (Engl.)
  Peacock flower (Engl.)
  Royal poinciana (Engl.)
Delonix regia (Hook.) Raf. is an accepted name. The Plant List

Other vernacular names
AMHARIC: Dire dawa zaf.
ARABIC: Goldmore.
BENGALI: Krishnachura.
BURMESE: Seinban.
CHINESE: Feng huang hua, Hong hua ying.
FRENCH: Flamboyan.
HAWAIIAN: Gulmohar.
HINDI: Gulmohar.
KANNADA: Kempu torai.
MALAGASY: Alamboronala, Hintsakinsa, Kitsakitsabe, Sarongadra, Tanahou, Tsiombivositra.
PORTUGUESE: Flamboiã.
SINHALESE: Mal-Mara.
SPANISH: Arbol del fuego, Acacia roja, Flamboyan, Flor de pavo, Framboyan, Guacamaya, Morazan.
TAMIL: Mayaram, Poo-Vahai.
THAI: Hang nok yung farang.
TURKISH: Cennet A.
YORUBA: Sekeseke.

Botany
Delonix regia is a large, deciduous tree with fern-like leaves. Leaves are bipinnate, slightly hairy, about 30 centimeters long. Leaflets are oblong, in 18 to 30 pairs, about 1.5 centimeters long. Flowers are large, showy, red or red and yellow, up to 12 centimeters across. Fruit is green and flaccid when young, turning to dark, pendulous pods, elongate, woody, compressed, and up to 50 centimeters long, ending in a short beak upon maturity. Seed are olive brown or smooth, hard, glossy, oblong, shaped like date seeds, about 2 centimeters long.

Distribution
- Introduced to the Philippines during the early Spanish period.
- Planted along roadsides and gardens.

- Native to Madagascar.
- IUCN Red lits of Threatened Species: classified as "vulnerable"-1960.

Constituents
- Phytochemical screening yielded sterols, triterpenoids, phenolic compounds, and flavonoids.
- Bark yields ß-sitosterol, saponins, alkaloids, carotene, hydrocarbons phytotoxins, and flavonoids.
- Flowers yielded carotenoides, tannins, saponins, flavonoids, steroids, alkaloids, and ß-sitosterol.
- Leaves yield lupeol and ß-sitosterol.
- Stem bark yielded four triterpenes: lupeol, epilupeol, ß-sitosterol, stigmasterol, and an aromatic compound p-methoxybenzaldehyde.
- Study isolated seven flavonoid glycosides: Kaempferol 3-rhamnoside 1, Quercetin 3-rhamnoside 2, Kaempferol 3-glucoide 3, Kaempferol 3-rutinoside 4, Kaempferol 3-neohesperidoside 5, Quercetin 3-rutinoside 6 and Quercetin 3-glucoside 7. (see study below) (11)
- A hydroalcoholic extract of flowers yielded sugars, flavonoid, tannins, phenolic compounds, steroids, and saponins. (see study below) (12)
- Root bark extract yielded secondary metabolites like tannins, phenols, alkaloids, terpenoids, sterols, cardiac glycosides. (see study below) (14)
- Study of water extracts characterized three major anthocyanins: cyanidin 3-O-glucoside, cyanidin 3-O-rutinoside, and pelargonidin 3-O-rutinoside. (19)
- Fractionation of 95% ethanolic extract of leaves isolated three sterols and its glucoside namely, stigmasten-diol-3-o-glucoside, 12,15-Dihydroxy-chol-8-en-24-oic-acid-3-oxy-6’-acetyl-glucoside and sodium, potassium adduct of 12,15- Dihydroxy-5-chol-9-en-24-oic-acid-3-oxy-rhamnosyl-rhamnoside, one flavonol, namely, kaempferol. (27)
- Chloroform extract of leaves yielded terpenoids, steroids, flavonoids, and tannins. (see study below) (35)
- Total concentration of fatty acids in the wood and bark were o.17% and 0.386%, respectively. Major fatty acids in stem wood were myristic acid (10.77%), erucic acid (8.532%), tridecanoic acid (6.48%), 14-pentadecenooic acid (5.55%), tetradecanoic acid (4.98%), pentadecanoic acid (4.26%) and palmitic acid (4.26%). Major fatty acid constituents in bark were myristic acid (9.63%), palmitic acid (7.75%), tridecanoic acid (6.08%), erucic acid (5.93%), tetradecanoic acid (4.91%), 14-pentadecenooic acid (3.66%), and pentadecanoic acid (3.58%). (see study below) (38)
- Study of aqueous (W), petroleum ether (PE), chloroform (C) ethanol (E) and acetone A (A) extracts of flowers for secondary metabolites yielded phenolic compounds (W+++, PE+, C+, E+++, A+++), flavonoids (PE++, C+, A+), saponins (W+, PE+++, E++, A+++), glycosides (W+++, E++), terpenoids (W+++, PE+++, C+, E+++, A+++), steroids (W++, C+++, E+), coumarins (PE++, C+++, A+++), quinones (W++, PE+, E++), phytosterols (PE++, C++), proteins (PE++, C+++, E+), carbohydrates (W++, PE++, C+++, E+, A+). (43)
- Study of seeds for proximate composition yielded: moisture 10.12%, crude fiber 14.60%, fat 17.16%, ash 1.03%, crude protein 8.75%, carbohydrate48.34%. (Minerals in mg/100 g) potassium 9.10, magnesium 4.00, calcium 1.5, phosphorus 4.1, sodium 1604.0, iron 1144.0, zinc 920.0, manganese 286.0, copper 114.0; (Antinutrient, mg/g) tannin 1.28, oxalate 2.52, saponin 2.89. (see study below) (45)
- Amino acid composition of seeds yielded essential amino acids (isoleucine, leucine, lysine, methionine, cystine, phenylalanine, tyrosine, threonine, valine) and non-essential amino acids ( glycine, alanine, serine, proline, aspartic acid, glutamic acid, histidine and arginine). (see study below) (45)

Properties
- Antispasmodic, antirheumatic.
- Studies suggest antimicrobial, antioxidant, hepatoprotective, anti-inflammatory, anti-diabetic, wound healing, diuretic, antidiarrheal, cytotoxic, antiulcer, anthelmintic, phytoremediative properties.

Parts used
Flowers, leaves, stem, bark.

Uses

Edibility
- Study has shown the seeds to be edible. It is a good source of oil, energy-rich, and can be used as protein supplement, but may pose cardiovascular risk because of high sodium-to-potassium ration. (see constituents above and study below) (45)
Folkloric
- No reported folkloric medicinal use in the Philippines.
- Elsewhere, traditionally used for constipation, arthritis, diabetes, earaches, constipation.
- In Bangladesh folk medicine, leaves used for the treatment of diabetes.
- The Shaiji community in southwestern Bangladesh drink decoction of flowers for treatment of chronic fever. In the Pirojpur district, leaves and fruits used to treat hemorrhoids and helminthiasis. Fruits eaten for piles and crushed leaves and fruits applied to boils. In Assam, plant used for wound healing: leaves are crushed and applied on wounds. In Tamil Nadu, India, leaves used to treat constipation, inflammation, arthritis, and hemiplegia. (
40)
- In Madhya Pradesh, India, seeds used for pyorrhea; roasted and crushed leaves wrapped in cloth inhaled just aster a scorpion bite; infusion of flowers used for bronchitis, asthma and malarial fever. Leaves used for rheumatism and as purgative. Bark used for fever and ethanol extract of flowers used for treatment of round worms. In Andhra Pradesh, flowers used for the treatment of dysmenorrhea. (
40)
Others
- Mucilage: Tree yields a gum in warty tears. Gum from seed used in textile and food industries.  (
41)
- Wood:
Durable; used for small scale projects. Used for making agricultural tools, handles combs.
- Agrofrestry:
Tree planted as live fence posts. (
41)
- Crafts:
Hard seeds used as beads for making necklaces..(
41)
- Fuel:
Wood and large pods used as fuel. Wood used for making charcoal.
(41)
- Oil:
Seeds yield 18 to 27.5% fatty oil--the pongam or karanga oil of commerce, used mainly in the tannin industry. The oil has insecticidal properties and also used in soap making, as illuminant, and for pharmaceutical preparations. (42)

Studies
Antibacterial:
Delonix regia was one of 12 medicinal plants studied for antibacterial activity. The methanol extracts showed more activity than the aqueous extracts for all 12 plants studied. The most susceptible bacterial were S. subtilis, followed by S. epidermis. (2)
Anti-Inflammatory: Study evaluated the anti-inflammatory activity of leaves using a carrageenan-induced rat paw edema and cotton pellet granuloma models. Results showed significant anti-inflammatory activity in both models. (3)
Flowers Constituents / Phenols and Flavonoids: Study was done to estimate the total phenolic and flavonoidal content of the flowers. Results showed the flowers to contain significant amounts of phenols and flavonoids, with the total phenolic content to be much higher than the flavonoidal content. (4)
Hepatoprotective / Cytotoxic: Study of an ethanolic extract isolated three sterols (stigmasterol, ß-sitosterol, and its 3-O-gucoside), a triterpene (ursolic acid) and four flavonoids (quercetin, quercitrin, isoquercitrin, and rutin), plus an amino acid. Results showed cytotoxic activity against human liver cancer cell line (HEPG2). It also showed hepatoprotective activity against CCl4-induced hepatic damage, attributed to the free radical scavenging property of the flavonoids. (5)
Antimicrobial: In antimicrobial screening, a dichloromethane soluble fraction of a methanolic extract showed strong inhibition of S. paratyphi growth, with moderate inhibition of S. typhi, S. aureus and S. dysenteriae. Other fractions showed inhibition of C. albicans, S. cerevisiae.
Antidiarrheal: Evaluation of ethanolic extract of D. regia for in vivo anti-diarrheal activity in experimentally induced diarrhea, prostaglandin E2-induced enteropooling and charcoal-induced motility test in rats showed dose-dependent antidiarrheal properties. (7)
Seed Mucilage / Tablet Binder: Seeds of plant contain glucomannose. Mucilage obtained from the seeds were used in the preparation of calcium carbonate tablets. Results showed the endospermic mucilage obtained from the seeds possesses comparable binding properties. (8)
Wound Healing / Flowers: Study investigated the wound healing properties of Delonix regia in experimental models in albino rats using incision and excision wound models. Results showed ethanolic and aqueous extracts of flowers significant promoted the healing process, as evidenced by increase in wound breaking strength, percentage of wound contractions, increased hydroxyproline content and decreased epithelialisation period. (9)
Antidiabetic / Leaves: Study evaluated a methanol extract of leaf for glucose tolerance efficacy in glucose-induced hyperglycemic mice. Results showed significant hypoglycemic effect on glucose-loaded mice at every dose. (10) Study evaluated the effect of gulmohar leaves extract on alloxan induced diabetic rat model. Results showed significant (p<0.001) reduction of blood glucose, with significant (p<0.001) reduction in total cholesterol and triglyceride levels. (28)
Hepatoprotective / Anticancer / Antioxidant: On cytotoxicity testing, D. regia extract showed potent anticancer effect against HepG2 cell line. It also showed dose-dependent hepatoprotective and antioxidant activities attributed to the flavonoids content. (See constituents above) (11)
Mercury Adsorption/ Anticancer / Antioxidant: Study evaluated the feasibility of using pods of Delonix regia activated carbon or the removal of Hg from water by absorption. Results showed a suitable indigenous active carbon as an adsorbent for the removal of Hg from aqueous solution. (12)
In Vitro Cytotoxic Activity / Flowers / Cancer Cell Lines: Study for in vitro cytotoxic effects of the hydroalcoholic extract of D. regia flowers showed anticancer effects against different cell lines (MCF-7 [breast], carcinoma of cervix HeLa cells, carcinoma of the brain, and carcinoma of colon). (13)
Antibacterial / Root Bark: A methanol extract of root bark of Delonix regia showed efficacy against all test bacteria (Gram negative E. coli, P. aeruginosa and Gram positive S. aureus, Strep pneumonia and B. subtilis). (see constituents above) (14)
Antinociceptive / Cytotoxic / Leaves: Study investigated the antinociceptive and cytotoxic effects of alcoholic extract of leaves in Swiss albino rats. Results showed an analgesic effect which me be peripherally mediated via inhibition of synthesis and release of PGs and other endogenous substances. Results also showed cytotoxic activity by brine shrimp lethality assay. (16)
Diuretic / Flowers: Study evaluated the diuretic activity of a methanol flower extract of Gulmohar in an albino rat model. Results showed significant diuretic activity, with increased urine volume and electrolyte excretion when compared to control. (17)
Corrosion Inhibitor / Aluminum: Study evaluated the inhibitive effect of D. regia extracts in reducing the corrosion rate of aluminum in acidic medium. Results showed D. regia extracts inhibited the corrosion of aluminum in HCl solutions. (18)
Methylene Blue Biosorbent: Dyestuffs are prominent organic pollutants that industry use and discharge into surface and subsurface water bodies. Study showed Delonix regia pod to be a very effective biosorbent in the removal of methylene blue dye from waste waters. (20)
Removal of Copper, Cobalt and Lead / Flowers: Study evaluated the ability of Delonix regia flowers to remove Co, Cu, and Pb ions through biosorption. Study showed D. regia flower is a viable agricultural waste for the removal of Co, Cu and Pb ions. The main adsorption mechanism was possibly a chemisorption reaction. (21)
Antibacterial / Leaves and Seeds: Study evaluated various extracts of leaf and seed of Delonix regia and A. aspera against five bacterial strains. The chloroform seed extract of D regia and ethanol seed extract of A aspera showed high inhibitory zone against E. coli than other bacterial strains. (22)
Antibacterial / Leaf and Seeds: Synthetic chemicals—methyl orange, phenolphthalein, phenol red, etc.—used as internal indicators in acid-base titrations are hazardous chemicals. Study evaluated Delonix regia for use as a natural indicator. Results showed D. regia flower petal can be used as a natural indicator, neither harmful to the environment nor causing any health hazard, while also being economical, simple, pollution free and inert. (22)
Larvicidal / Leaf and Seeds: A methanol extract of D. regia flowers were very effective against 3rd instar larvae of H. puera indicating a potential as bio-pesticide. (24)
Anthelmintic / Flowers: Fresh methanol and aqueous extracts of flowers of Delonix regia showed considerable anthelmintic activity against Pheretima posthuma. The methanol extract was more active. Piperazine citrate was used as reference drug. (25)
Anti-Ulcer / Flowers: Study evaluated the anti-ulcer activity of various doses of an ethanolic extract of Delonix regia in an ethanol induced ulcer model in rats with lansoprazole as standard drug. Results showed significant antiulcer activity in a dose dependent manner attributed to antioxidant principles present in the plant. (26) Study evaluated the in-vitro anthelmintic potency of aqueous and methanolic extracts of flowers of Delonix regia and Caesalpinia pulcherrima against pheretima posthuma. Both demonstrated anthelmintic activity. The methanolic extract of DR took less time to cause paralysis of the earthworm than the aqueous extract. (36)
Antibacterial / Flowers: Study of methanolic extracts of flowers showed antibacterial activity: C. pulcherrima > P. ferrugineum > D. regia. The flower extracts were more effective against gram positive bacteria than gram negative bacteria. (29)
Hepatoprotective / Aerial Parts: Study evaluated a methanol extract of aerial parts against CCl4 induced liver damage in Wistar albino rats.
Hepatoprotective activity was evidenced by reduction in serum enzymes AST, ALT, ALP, DBIL and TBIL. (30)
Palladium Nanoparticles / Leaves: Study reports on the biosynthesis of palladium nanoparticles (Pd-NPs) using D. regia leaf extract. The Pd-NPs showed catalytic activity through electron relay effect. (31)
Antiemetic / Leaves: Study evaluated the antiemetic activity of methanol extracts of five leguminous plant leaves, viz., C. siamea, C. tetragonoloba, D. regia, S. saman and V. trilobata on emesis induced in male chicks by oral administration of copper sulphate. All extracts showed antiemetic activity. Delonix regia showed the highest activity (96.74%). Chlorpromazine was used a standard drug. (32)
Antibacterial: Study evaluated the antimicrobial activity of various extracts of whole plant and root bark of D. regia against different pathogenic strains of bacteria and fungi. Among all extracts, the methanol extract of whole plant (seeds, leaves, and stems) showed significant inhibitory activity against S. aureus (91.84%), P. aeruginosa (91.05%), B. pumilus (85.75%) and E. coli (78.71%). (33)
• Cardioprotective / Leaves: Study evaluated the cardioprotective effect of Delonix regia leaf extract. Results showed reduction in mortality rate in an isoproterenol (SO)-induced heart injury and hypertrophy mouse model. Study showed decreased serum levels of CPK, LDH, GOT, TNF-alpha and increased NO level in DRLE-treated ISO-injured mice. In in-vitro study, porcine coronary artery showed a vasodilation effect induced by DRLE in a dose-dependent manner. Cardioprotective effect was attributed through activation of vasodilation through the NO pathway and prevention of myocyte injury via inhibition of TNF-alpha pathway. (34)
• Antioxidant / Leaves: Study evaluated the phytochemicals and antioxidant activity of chloroform extract of Delonix regia leaves. Antioxidant activity with DPPH was higher than H2O2 and reducing power assays. (see constituents above) (35)
• Antimalarial / Plasmodium berghei / Synergism with Papaya: Study evaluated the antiplasmodial activities of bark extract of D. regia and leaf extract of Carica papaya, alone and in combination. The leaf extracts showed drastically increased inhibition in combination with 1:1 ration. Each single dose of DR and CP showed highest inhibition rat of 4.80 and 25.5 mg/g, respectively. (37)
• Antibacterial / Antifungal / Antioxidant / Stem Wood and Bark: Methanol:chloroform (1:1 v/v) wood extract showed effective antibacterial activity against B. subtilis, S. lutea, and S. aureus while the bark extract was most active against E. coli. Bark extract showed maximum inhibition of mycelial growth against P. selorotigenum and P. variotii while the essential oil showed moderate inhibition against Aspergillus nigra. Total antioxidant activity of EO, stem wood and stem bark was 84.34%, 80.33%, and 70.21%, respectively. (38)
• Antidiabetic / Metformin and Extract: Study evaluated the activities of metformin, pioglitaone, and aqueous extract of D. regia on serum levels of glycated hemoglobin of STZ-induced diabetic male and female wistar albino rats. Treatment with aqueous extract of D. regia reduced glucose level from 8.20 ± 0.81 mmol/l to 6.10 0.60. The combined formulation of metformin and extract decreased glycated hemoglobin from 7.81 ± 0.34 to 4.80 ± 0.17 with p<0.05 confidence level when compared with diabetic control rats. (39)
• Analgesic / Antimicrobial / Leaves: Study of ethanolic extract of leaves of Delonix elata and Delonix regia showed good antimicrobial activity (40 mg/10 ml) and analgesic activity at dose of 200 mg/kbw. The ethanolic extract of plants showed mild to moderate antimicrobial activity against E. coli, S. aureus, P vulgaris, P. aeruginosa and Aspergillus niger, with streptomycin and nystatin as standard drugs. Analgesic activity was carried out using tail flick method. (44)
• Edibility of Seed and Seed Oil: Delonia regia leaves, roots, and seeds have been extensively used for the treatment of many ailments but only the immature seeds have been found edible. The mature seeds are reportedly toxic due to antinutrient contents. This study investigated the proximate, amino acid, and vitamin composition of mature seeds and characterized the seed oil for fatty acids, acylglycerols. Study concludes the seeds are a good source of oil, energy-rich, good for consumption and can be used as protein supplement but may pose cardiovascular risk because of its hight sodium-to-potassium ration. The seed oil contains essential fatty acids, acylglycerols and viramins needed for nutrition and production of soaps, shampoos, and as biodiesel feedstock. (see constituents above (45)
• Effect on Liver Enzyme Markers and Electrolytes / Alloxan-Induced Diabetic Rats: Study evaluated the effect of seed extract of D. regia on some liver enzyme markers and electrolytes in alloxan-induced diabetic albino rats. Results showed crude seed extracts significantly (p<0.05) improved the levels of electrolytes in diabetic treated rats and significantly lowered the activities of AST, ALY, and ALP in diabetic rats when compared to control. (46)
Carboxymethylated Seed Gum: Hydrocolloids or gum are widely used in the food industry as emulsifying, stabilizing, thickening, gelling and film-forming agents. Study searched for new species of gums and hydrocolloids that can compete with those in traditional use, such as flamboyant (Delonix regia) seed gum, an ornamental and underutilized species. Flamboyant tree seeds yielded a native gum (flamboyant gum which was modified by carboxymethylation. Results suggest a product with gum functionality with versatile potential for use in the food industry. (47)
Removal of Toxic =Pb (II) Ions / Pod: Study evaluated the removal of toxic heavy metal PB2+ ions from aqueous solution by agricultural biosorbents using nano sized Delonix regia. Results showed D. regia is an available agricultural, low cost and environment friendly and effective biosorbent for removing PB2++ ions. (48)

Availability
Wildcrafted.

Updated September 2020 / April 2018 / March 2016
January 2012


                                                   PHOTOS / ILLUSTRATIONS
IMAGE SOURCE: Plate from book / File:Delonix regia Blanco2.451.png / Flora de Filipinas / 1880 - 1883 / Francisco Manuel Blanco (O.S.A) / Public Domain / Modifications by Carol Spears / Wikimedia Commons
OTHER IMAGE SOURCE: Detail of a flower of Delonix regia / File:Delonix regia flower.JPG / B. Navez / 3 December 2006 / GNU Free Documentation License / Wikipedia
Photo © Godofredo Stuart / StuartXchange
OTHER IMAGE SOURCE: Gulmohur, Royal Poinciana, Flamboyant, Peacock Flower OR Firetree Delonix regia in Sanjeevaiah Park, Hyderabad, India. / File:Delonix regia (Gulmohur) in Hyderabad W IMG 8167.jpg / J M Garg. / 3.05. 09 / GNU Free Documentation License / Wikipedia

Additional Sources and Suggested Readings
(1)
Delonix regia (Bojer ex Hook.) Raf. / Catalogue of Life
(2)
Efficacy of Aqueous and Methanol Extracts of Some Medicinal Plants for Potential Antibacterial Activity / Jigna Parekh, Darshana Jadeja, Sumitra Chandra / Turk J Biol 29 (2005) 203-210
(3)
Anti-Inflammatory Activity of Delonix regia (Boj. Ex. Hook)
/ Vaishali D. Shewale, Tushar A. Deshmukh, Liladhar S. Patil, and Vijay R. Patil / Advances in Pharmacological Sciences, Volume 2012 (2012) /
doi:10.1155/2012/789713
(4)
Quantification of Total Phenol and Flavonoid Content of Delonix regia Flowers / Shanmukha I, Harshil Patel, Jignesh Patel, Riyazynnisa / International Journal of ChemTech Research, Vol.3, No.1, pp 280-283, Jan-Mar 2011
(5)
Hepatoprotective and cytotoxic activities of Delonix regia flower extracts / Aly M. El-Sayed, Shahira M. Ezzat, Maha M. Salama and Amany A. Sleem / Pharmacognosy Journal / DOI: 10.5530/pj.2011.19.10
(6)
Chemical and biological investigations of Delonix regia (Bojer ex Hook.) Raf.
/ ISRAT JAHAN, MOHAMMAD S. RAHMAN, MOHAMMED Z. RAHMAN et al / Acta Pharm. 60 (2010) 207–215 / DOI: 10.2478/v10007-010-0018-7
(7)
IN-VIVO ANTIDIARRHOEAL ACTIVITY OF ETHANOLIC EXTRACT OF DELONIX REGIA FLOWERS IN EXPERIMENTAL INDUCED DIARRHOEA IN WISTAR ALBINO RATS
/ Rajabjau S Shiramane, Karnakumar V Biradar, Basavaraj V Chivde et al / INTERNATIONAL JOURNAL OF RESEARCH IN PHARMACY AND CHEMISTRY / IJRPC 2011, 1(3)
(8)
Evaluation of Delonix regia Raf. Endospermic mucilage as tablet binder /
Kale R. H, Joshi U. M, Ambhore D. P., Sitaphale G.R / International Journal of ChemTech Research ISSN : 0974-4290 Vol.1,No.1,pp 11-15, Jan – March 2009
(9)
Study of wound healing activity of Delonix regia flowers in experimental animal models / Mohd Asif Khan, Amit Saxena, Farheen Tabassum Fatima, Gaurav Sharma, Veerana Goud, Asif Husain* / AJPTR-American Journal of PharmTech Research
(10)
Effect of Delonix Regia Leaf Extract on Glucose Tolerance in Glucose-induced Hyperglycemic Mice / Mahafuzur Rahman, Md, Nazmul Hasan, Md, Asish Kumar Das, Tozammal Hossain, Md, Rownak Jahan, Afsana Khatun, Mst, and Mohammed Rahmatullah / Afr J Tradit Complement Altern Med. 2011; 8(1): pp 34-36. / eISSN: 0189-6016
(11)
Phytochemical, cytotoxic, hepatoprotective and antioxidant properties of Delonix regia leaves extract / Mohamed Abdel-Daim, Samar S Azab, Omayma A Eldahshan / Medicinal Chemistry Research, 2013; 22(9): pp 4269-4277 / DOI: 10.1007/s00044-012-0420-4
(12)
Utilising the Pods of Delonix regia Activated Carbon for the Removal of Mercury (II) by Adsorption Technique /
Shabudeen et al. / Int. J. Res. Chem. Environ., Vol.3, Issue 1, January 2013 (60-65)
(13)
In vitro Cytotoxic Activity of Hydro Ethanolic Extract of Delonix regia (Bojer ex. Hook.) Flowers on Cancer Cell Lines / Madan R. Pusapati*, Tejaswi Jonnalagadda, Phani K. Kola, Ankamma C. Yarlagadda and Girijasankar Guntuku / British Journal of Pharmaceutical Research 4(4): 443-452, 2014
(14)
Gulmohar / Common names / Flowers of India
(15)
Delonix regia / Common names / ZipcodeZoo
(16)
Antinociceptive and cytotoxic potential of ethanolic extract of Delonix regia (Leaves)
/ Rozina Parul*, Md. Jahir Alam and Md. Sohel Rana / Indian J.Pharm.Biol.Res. 2014; 2(1):55-61
(17)
Evaluation of diuretic activity of Delonix regia (Gul mohr) flowers in albino rats / Senthil Velan S*, Jeeva Prakash G, Sindhan V, Somasekhar E, Bharathi S, Rajani B / Int. J. Res. Pharm. Sci., 2012; 3(3): pp 369-372
(18)
Eco‐friendly corrosion inhibitors: the inhibitive action of Delonix Regia extract for the corrosion of aluminium in acidic media / O.K. Abiola, N.C. Oforka, E.E. Ebenso, N.M. Nwinuka / Anti-Corrosion Methods and Materials, Vol. 54 Iss: 4, pp.219 - 224, 2007.
(19)
Anthocyanin Characterization of Pilot Plant Water Extracts of Delonix regia Flowers / Felix Adje, Yves F. Lozano, Emmanuelle Meudec, Paul Lozano, Augustin Adima, Georges Agbo N'zi and Emile M. Gaydou / Molecules, 2008; 13: pp 1238-1245 / DOI: 10.3390/molecules13061238
(20)
Biosorption of Methylene Blue Dye Aqueous Solutions on Delonix regia (Flamboyant Tree) Pod Biosorbent / T.O. Owoyokun, M.Sc. / The Pacific Journal of Science and Technology, Volume 10. Number 2. November 2009 (Fall)
(21)
Sorption Study of Co (II), Cu(II) and Pb(II) ions Removal from Aqueous Solution by Adsorption on Flamboyant Flower (Delonix Regia) / Jimoh T. O., Iyaka Y. A, Nubaye M. M /American Journal of Chemistry, 2012; 2(3): 165-170 / doi: 10.5923/j.chemistry.20120203.12
(22)
ANTIBACTERIAL ACTIVITY OF LEAF AND SEED EXTRACTS OF DELONIX REGIA AND ACHYRANTHUS ASPERA AGAINST SELECTED BACTERIAL STRAINS / Dhanalakshmi D* and Manimegalai K / Int. J. Pharm. Med. & Bio. Sc. 2013
(23)
Green chemistry: Petal sap of Delonix regia as a substitute for hazardous internal indicators in volumetric analysis / Pramod Kumar Jain*, Pushpa Jain** and Prajvi Jain / Biosci. Biotech. Res. Comm. 6(2): 186-189 (2013)
(24)
Larvicidal activity of the flowers of Delonix regia (Bojer Ex Hook.) Rafin. (Fabales: Fabaceae) against the teak defoliator, Hyblaea puera Cramer / B. Deepa* and O. K. Remadevi / Current Biotica 5(2): 237-240
(25)
In Vitro Anthelmintic Property of Gulmohar Flowers against Pheritima Posthuma / R.A. Ahirrao*, M. R. Patel, Sayyed Hamid and J.K. Patil / Pharmacologyonline 1: 728-732 (2011)
(26)
EVALUATION OF ANTI-ULCER EFFECTS OF ETHANOLIC EXTRACT OF DELONIX REGIA FLOWER /
Samaresh Pal Roy*, Kamlesh Prajapati, Ramji Gupta, Dipanwita Bhadra4, Nikunj Patel, Archana Batiwala, Gautam Sonara, Neerav Gheewala, T. Kannadasan / Indian Journal of Research in Pharmacy and Biotechnology, Volume 1(3) May-June 2013
(27)
ISOLATION AND IDENTIFICATION OF PHYTOCONSTITUENTS FROM DELONIX REGIA LEAVES / J. MARIA JANCY RANI, G. CHANDRA MOHAN, R. RAVIKUMAR / International Journal of Pharmacy and Pharmaceutical Sciences, Vol 5, Suppl 4, 2013
(28)
Anti-Diabetic Potential of Delonix regia / Chaturvedi Dev, Suhane Nidhi, Singh Deepa, Chaturvedi Neha, Mishra Asutosh / Int. Res. J. Pharm. 2014; 5(12) /
DOI: 10.7897/2230-8407.0512179 / ISSN: 2230-8407
(29)
Antibacterial activity of flower extract of Caesalpinia pulcherrima, Delonix regia and Peltaphorum ferrugineum against Urinary tract Pathogens / Sachidananda Swamy H.C, Asha M.M, Chaithra M, Vivek M.N, Yashoda Kambar, Prashith Kekuda T.R.* / International Research Journal of Biological Sciences, Vol. 3(4), 80-83, April (2014)
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Hepatoprotective activity of methanol extract of aerial parts of Delonix regia / Jameel Ahmed, Sunil Nirmal, Vipul Dhasade, Anuja Patil, Sagar Kadam, Subodh Pal, Subhash Mandal, Shashikant Pattan / Phytopharmacology 2011, 1(5) 118-122
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Biosynthesis of Palladium Nanoparticles Using Delonix regia Leaf Extract and Its Catalytic Activity for Nitro-aromatics Hydrogenation / Preeti Dauthal and Mausumi Mukhopadhyay* / Ind. Eng. Chem. Res., 2013, 52 (51), pp 18131–18139 / DOI: 10.1021/ie403410z
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Antiemetic Activity of Leaves Extracts of Five Leguminous Plants / Ahmed Salman et al / IJRAP 3(2), Mar-Apri 2012.
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In vitro comparative study of antimicrobial activity of whole plant and root’s bark of Delonix regia (Bojer Ex. Hook) / Musaddique Hussain*, Shahid Masood Raza, Khalid Hussain Janbaz, Muhammad Razi Ullah Khan, Abdul Aziz and Abdul Majeed /
International Journal of Pharma Sciences, Vol. 4, No. 5 (2014): 736-741
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Delonix regia Leaf Extract (DRLE): A Potential Therapeutic Agent for Cardioprotection
/ Lung-Shuo Wang, Chun-Ting Lee, Wei-Lieh Su, Shih-che Huang, Shu-chi Wang / PLOS ONE, 2016; 11(12): e0167768 / https://doi.org/10.1371/journal.pone.0167768 / PMCID: PMC5147973 / PMID: 27936072
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In-Vitro Antioxidant Potential of Delonix regia Leaves / J. Mariajancyrani*, G. Chandramohan, P. Saravanan, S. Saivaraj / Sch. Acad. J. Pharm., 2013; 2(6): pp 468-471
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COMPARATIVE EVALUATION OF IN-VITRO ANTHELMINTIC POTENCY OF DELONIX REGIA (RAFIN) and CAESALPINIAPULCHERRIMA (LINN) FLOWER EXTRACTS BY AQUEOUS AND METHANOL AS A SOLVENT / Manu Kumar H.M*, Vanitha M.T / IJPRD, 2014; Vol 5(12)
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Antimalarial Effect of Flamboyant (Delonix Regia) Bark and Papaya (Carica papaya L.) Leaf Ethanolic Extracts Against Plasmodium Berghei in Mice / Fatmawaty Rosmalena, Amanda Amalia, Innayah Syafitri and Vivitri D. Prasasty / Biomedical and Pharmacology Journal, 2017; 10(3) / DOI :  http://dx.doi.org/10.13005/bpj/1206
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Stem Wood and Bark Extracts of Delonix regia (Boj. Ex. Hook): Chemical Analysis and Antibacterial, Antifungal, and Antioxidant Properties / Mohamed Z. M. Salem, * Ahmed Abdel-Megeed, and Hayssam M. Ali / BioResources, 2014; 9(2): pp 2382-2395
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Effects of Metformin, Pioglitazone and Aqueous Extract of Delonix Regia on Blood Levels of Glycated Hemoglobin (Hba1c) of Streptozotocin-Induced Diabetic Male and Female Wistar Albino Rats / Anacletus, F.C*; Osuji, P.O ; Monago, C.C. / IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB), Volume 1, Issue 4 (May-Jun. 2015), pp 23-27
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PHYTOCHEMICALS AND PHARMACEUTICAL POTENTIAL OF DELONIX REGIA (BOJER EX HOOK) RAF A REVIEW / Saloni Sharma, Saroj Arora / Int J Pharm Pharm Sci., 2015; 7(8): pp 17-29
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Delonix regia: Flame tree / Ken Fern: Trpical Plants Database / Useful Tropical Plants
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Economic importance of Delonix regia / Puskar: Editor in Chief / Green Clean Guide
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Secondary metabolites from ornamental flowers: A study of common avenue trees of the family Caesalpiniaceae / Joseph Joselin, Augustian Rajam Florence, Thankappan Sarasabai Shynin Brintha and Solomon Jeeva / Journal of Chemical and Pharmaceutical Research, 2014; 6(7): pp 2089-2096 / ISSN: 0975-7384
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ANTIMICROBIAL AND ANALGESIC ACTIVITIES OF DELONIX ELATA GAMBLE AND DELONIX REGIA RAF. / YN. Seetharam, Vijay, G. Sharanabasappa, N. Srinivas Murthy and VR. Sangamma / Aryavaidyan, Aug-Oct 2002; 16(1): pp 51-53
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Chemical and nutritional compositions of flame of forest (Delonix regia) seeds and seed oil / O A Oyedeji, L A Azeez, BG Osifade / South African Joutnal of Chemistry, 2017; On-line, Vol 70 / http://dx.doi.org/10.17159/0379-4350/2017/v70a3  / eISSN: 1996-840X
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EFFECT OF DELONIX REGIA SEED EXTRACT ON SOME LIVER ENZYME MARKERS AND ELECTROLYTES OF ALLOXAN-INDUCED DIABETIC RATS / Omeodu, S. I., Onyegeme-Okerenta, B. M. and Amakiri A. P. / Journal of Pharmaceutical and Scientific Innovation, 2017; 6(2) / DOI: 10.7897/2277-4572.06250 / ISSN: 2277-4572
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Physicochemical properties of carboxymethylated flamboyant (Delonix regia) seed gum / J Pacheco Aguirre, G Rosado-Rubio, D Betancur-Ancona and L Chel-Guerrero / CyTA-Journal of Food, 2010, 8(3) / https://doi.org/10.1080/19476330903322960
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Removal of Toxic Pb(II) Ions from Aqueous Solution by Nano Sized Flamboyant Pod (Delonix regia) / Laila H Abdel-Rahman, Badriah SF Al-Farhan, Ahmed M Abu-Dief and Mallak Megalea Zikry / Arch Chem Res. 2016, 1:1 / doi: 10.21767/2572-4657.1000

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