Jatoba

Jatoba (Hymenaea courbaril L.): A Comprehensive Reference

1. Identity and Botanical Classification

Scientific Nomenclature and Taxonomy

The plant species of greatest economic importance within the genus Hymenaea is Hymenaea courbaril L., popularly known as jatobá, a species used by native populations for medicinal purposes and in civil construction, whose fruits provide a nutritious food source for a variety of organisms. Jatobá (Hymenaea courbaril L.) belongs to the family Fabaceae and flowers in the late rainy season, producing fruits in approximately four months. The genus Hymenaea (Fabaceae) comprises 14 species widely distributed in tropical and subtropical regions.

Published synonyms for H. courbaril include Hymenaea animifera, H. candolleana, H. multiflora, H. resinifera, H. retusa, and H. stilbocarpa, among others.

Common Names and Regional Designations

The species is also known as Jutai-acu (Brazil), guapinol (Mexico and Central America), courbaril (Peru and Ecuador), algarrobo (Colombia and Venezuela), and locust (Belize and Guyana). Additional English-language names include Brazilian cherry, Brazilian copal, Cayenne copal, copal, Demarara copal, kerosene tree, and stinking toe; French designations include gomme animée and pois confiture. The epithet "stinking toe" refers to the characteristic odour of the fruit pulp.

Morphological Description

H. courbaril is the biggest species belonging to the genus Hymenaea, with a straight stem that on average reaches 40 m in height and 1 m in diameter; in some cases, as observed in the primary tropical forests of the Amazon, old trees can attain more than 50 m in height and 2 m in diameter. The species has alternate leaves composed of two leaflets. The tree bears fruit from December to July, the fruits being nut-like capsules of 7–12 cm in length.

Jatoba fruits are constituted of barks (approximately 60 wt%), pulp (approximately 10 wt%), and seeds (approximately 30 wt%). The floury pulp around the seeds is the main edible part, which is yellowish, sweet, and has a characteristic odour.

Geographic Distribution

The species occurs in South and Central America and southern Mexico. Species of Hymenaea exhibit a neotropical distribution, occurring in eastern Africa as well as in central and South America. Fossilized amber unearthed in the Caribbean suggests that members of this genus reached the American tropics approximately 15 million years ago, with strong evidence of an African origin preceding their diversification in the Americas.

Plant Parts Used and Common Preparations

Various parts of the plant, such as bark, fruits, resin, leaves, seeds, stems, and vapors of oleoresin, have been associated with its ethnomedicinal properties. Forest communities use these parts in decoction, infusion, tincture, poultices, juice, soaking, or licking for the treatment of various diseases.

The trees exude a resin named copal or jutaicica used to make varnish. The pulp and seeds have been utilized by the food industry in the production of jelly, liqueur, bread, flour, cookies, and snacks enriched with fibers. As a dietary supplement, jatoba is most commonly encountered as a bark tea (decoction or infusion), standardized bark extract in capsule or tablet form, and as pulp flour used in functional foods.

2. Traditional and Historical Use

Indigenous Amazonian Traditions

Jatobá's bark and leaves have an ancient history of use with the indigenous tribes of the rainforest. The bark of the tree is macerated by the Karaja Indians in Peru and Creole people in Guyana to treat diarrhea. In Ka'apor ethnobotany, jatobá bark is taken orally to stop excessive menstrual discharge, applied to wounded or sore eyes, and used to expel intestinal worms and parasites.

The bark is used in the Peruvian Amazon for cystitis, hepatitis, prostatitis, and coughs. In the Amazon, jatobá's aromatic copal resin is dug up from the base of the tree and burned as incense, used in the manufacture of varnishes, used as a glaze for pottery, and is employed medicinally. Indians in the Amazon have long used the resin in magic rituals, love potions, and in wedding ceremonies.

Brazilian Folk and Traditional Medicine

In Brazilian traditional medicine, products from this species are employed to treat wounds, inflammations, bacterial infections, rheumatism, anemia, respiratory and gastric disorders, bronchitis, and prostate conditions. H. courbaril L. is traditionally recommended by rural communities in the northern region of Brazil for the preparation of teas from its leaves aimed at treating anemia and liver disorders; other parts of the plant, such as the stem bark, inner bark, and seeds, are also used in the preparation of teas.

Jatobá is a tree whose leaves, roots, fruits, and especially the stem bark are traditionally employed in folk medicine by means of infusions and decoctions to treat anemia, kidney problems, sore throat, and other airway diseases such as bronchitis and asthma.

Caribbean and Central American Use

In the Caribbean, Mexico, and Brazil, the powdery sweet dust of the fruit is consumed for energy. In Suriname, a bath prepared from the leaves of the plant is applied to strengthen the bones of babies.

Resin in Ceremonial and Artisanal Contexts

The orange, sticky gum-like resin oozes from the tree in order to protect wounded bark; after millions of years this resin has fossilized and formed amber. Across Amazonian traditions, the aromatic copal resin is dug up from the base of the tree and burned as incense, used in the manufacture of varnishes, and used as a glaze for pottery.

3. Key Constituents and Active Compounds

Overview of Phytochemical Richness

From the plant species of the genus Hymenaea, more than 130 compounds have been identified, including fatty acids, flavonoids, terpenoids and steroids, phthalides, phenolic acids, procyanidins, and coumarins. The species is rich in bioactive compounds, including flavonoids, terpenes, phenols, and coumarins present in its leaves, fruits, bark, and resin.

Flavonoids

Among the identified constituents, flavonoids were predominant, representing the major fraction of the detected metabolites; flavonoids are widely known for their numerous biological properties. Key flavonoids identified in H. courbaril include: astilbin (found as the main component of the stem bark hydroalcoholic extract by HPLC analysis), with coumarins, flavonoids, phenolics, tannins, and saponins also predominant. The fresh xylem sap of H. courbaril yielded fisetin as an insoluble precipitate, while the filtrate contained a mixture of fisetinediol, fustin, 3-O-methyl-2,3-trans-fustin, and taxifolin. Additional flavonoids described for the first time in the leaves of H. courbaril include chrysoeriol-7-O-neohesperidoside, isorhamnetin-3-O-glucoside, 3,7-di-O-methylquercetin, and myricetin.

Terpenoids

Diterpenes are a particularly well-characterized class in jatoba. The pods have yielded the labdane diterpenoids crotomachlin, labd-13E-en-8-ol-15-oic acid, labdanolic acid, (13E)-labda-7,13-dien-15-oic acid, and labd-8(17),13E-dien-15-oic acid, along with the sesquiterpene spathulenol. Enantio-labdanoic and enantio-halimane-type diterpenes and sesquiterpenes have been isolated from the seed pods, stem bark, trunk resin, and the peel of the ripe fruits.

Sesquiterpenes and volatile compounds: Three compounds — α-humulene (2.3% v/w), (−)-(E)-caryophyllene (60.5%), and caryophyllene oxide (20.7%) — have been identified from the resin oil of H. courbaril. Caryophyllene oxide has attracted particular scientific attention for its antiproliferative properties (see below).

H. courbaril fruits present a diversity of secondary metabolites including sesquiterpenes, labdane- and clerodane-type diterpenes, carotenoids, biscoumarins, and flavonoids.

Phenolic Acids, Procyanidins, and Tannins

Researchers have discovered the presence of terpenoids, fatty acids, flavonoids, phenolics, coumarins, procyanidins, and polymers in Hymenaea species. Tannins are present across multiple plant parts and are considered partly responsible for the antimicrobial properties of the bark. Tannins and flavonoids are among the main compounds involved with potential antifungal and termiticidal effects, in addition to antioxidant, antibacterial, antidiarrheal, antiulcer, and anti-inflammatory activities.

Polysaccharides (Xyloglucans)

Xyloglucans isolated from the seeds stimulate macrophages in vitro, thereby activating the immune system. Xyloglucans from H. courbaril have been shown to induce the secretion of IL-1, which can be considered an enhancer of tumor elimination; furthermore, seed-derived polysaccharides modulate macrophage phagocytic activity and increase nitric oxide (NO) synthesis, indicating immunomodulatory action.

Nutritional Composition of the Fruit Pulp

The nutritional composition of jatobá pulp highlights fibers as the main component, which may be related to several health-promoting effects; jatobá pulp is also a source of protein and minerals. The fruit pulp also contains carbohydrates, lipids, proteins, carotenoids, phenolic compounds, and vitamin C. Fibrous pulp residue and pulp flour have high protein (11 and 12 g/100 g, respectively) and dietary fiber (49 and 44 g/100 g, respectively) content. The main macronutrient in pulp and seed was crude fiber, and considerable amounts of vitamin C (51.87 and 121.45 mg/100 g respectively) were found. The most abundant bioactive compounds in the lipid fraction were α-tocopherol (886.37 and 993.63 mg/kg) and β-sitosterol (61.83 and 91.09 mg/kg) for pulp and seed oils, respectively.

4. Established Mechanisms of Action

Anti-Inflammatory Pathways

The anti-inflammatory activity of labdane diterpenoids — a principal class of compounds in jatoba — has been attributed mainly to the inhibition of nuclear factor-κB (NF-κB) activity, the modulation of arachidonic acid (AA) metabolism, and the reduction of nitric oxide (NO) production. The simultaneous inhibition of COX and LOX activities and the modulation of the NF-κB axis appear to converge toward limiting oxidative and inflammatory damage, thus preserving mucosal integrity. Such multi-target regulation reflects the capacity of plant-derived compounds to modulate interconnected molecular networks — including eicosanoid biosynthesis, cytokine signaling, and redox balance — rather than acting through isolated targets.

Among the diterpenes, krotomachlin and labdanolate have demonstrated anti-inflammatory effects due to their cyclooxygenase and lipid peroxidation inhibitory activities. The pulp also contains labdane diterpenes which have shown anti-inflammatory action.

Antioxidant Mechanisms

Phenolic compounds and carotenoids in jatoba are important due to their known antioxidant activity. A DPPH assay demonstrated that H. courbaril hydroalcoholic stem bark extract exhibited potent antioxidant activity, with an IC50 of 3.12 μg/mL. These bioactive components act as natural antioxidants, improving inflammatory processes, combating oxidative stress, and promoting overall health.

Myorelaxant (Smooth-Muscle Relaxation) Mechanisms

The ethyl acetate fraction (EAF) of the stem bark reduced contractions that depended on divalent cation inflow through voltage-operated Ca²⁺ channels (VOCCs) or receptor-operated Ca²⁺ channels (ROCCs), but it was more potent in inhibiting VOCC- than ROCC-dependent contraction. This calcium channel-modulating property provides a mechanistic basis for the traditional use of jatoba in respiratory and smooth muscle conditions.

Antimicrobial Mechanisms

The mechanism of antimicrobial action of Hymenaea constituents may be related to cell membrane permeabilization and disruption of membrane integrity. Jatoba contains terpene and phenolic chemicals which are responsible for protecting the tree from fungi in the rainforest; the jatobá tree is one of the few trees in the rainforest with a completely clean trunk bark, without the usual mold and fungus. These antifungal terpenes and phenolics have been documented in several studies, and the antifungal activity of jatobá is attributed to these chemicals.

Antiproliferative / Apoptotic Mechanisms

Caryophyllene oxide, isolated as the majority compound from the leaf hexane extract, induced early and late apoptosis, depolarized the mitochondrial membrane, leading to several morphological changes and shifts in apoptotic proteins, with caspase involvement evidenced. The majority compound, caryophyllene oxide, induced early and late apoptosis, depolarized the mitochondrial membrane leading to several morphological changes; depolarization of the mitochondrial membrane releases the pro-apoptotic protein Bax from Bcl-xL, and the apoptosis process is caspase-7 activation-dependent.

Immunomodulatory Mechanisms

Xyloglucans from H. courbaril induce the secretion of IL-1, which can be considered an enhancer of tumor elimination; furthermore, seed-derived polysaccharides were shown to modulate macrophage phagocytic activity and increase NO synthesis, indicating immunomodulatory action.

5. Scientific Evidence by Area of Use

5.1. Antimicrobial Activity

Antibacterial

The ethanol extract and fractions obtained from H. courbaril barks were investigated against bacterial clinical isolates, showing minimum inhibitory concentration (MIC) values of 125, 250, 500, 750, and 1000 μg/mL against E. faecalis, E. coli, S. aureus, A. baumannii, and K. pneumoniae, respectively. A separate study evaluated the antibacterial activity of the ethanolic stem bark extract against S. aureus (ATCC 25923) and found a MIC of 12.5 mg/mL.

One investigation reported high total phenolic content, mainly in the stem bark extract, and rich antioxidant activity; in the anti-biofilm analysis, leaf extracts showed inhibition percentages of 78.29% and 78.85%, comparable to the standard antibiotic chloramphenicol. Flavonoids annotated in H. courbaril extracts, including rutin, myricetin, and luteolin, have been shown to display promising antimicrobial properties contributing to antibacterial activity against S. aureus biofilm.

Evidence characterization: All antibacterial studies to date are in vitro (cell-free or cell-based assays). No human clinical trials have been conducted. Evidence is preliminary.

Antifungal

The xylem sap of H. courbaril inhibited the growth of dermatophytes and Cryptococcus neoformans with a minimum inhibitory concentration (MIC) of less than 256 μg/mL; the isolated compound fisetin showed an MIC of less than 128 μg/mL for these fungi, with lower toxicity (IC50 = 158 μg/mL) compared to the fresh xylem sap (IC50 = 109 μg/mL). Naturally occurring fisetin can provide a starting point for clinical application and represents therapeutic potential against fungal infections, because it showed in vitro antifungal activity and low toxicity on animal cells.

Fisetin obtained from xylem sap showed activity against the fungi Microsporum gypseum, Trichophyton mentagrophytes, and T. rubrum.

Evidence characterization: Evidence is limited to in vitro studies. No controlled human trials exist. Evidence is preliminary.

Antiviral

Ethanolic leaf extracts of H. courbaril L. exhibited strong in vitro activity against rotavirus; the extracts prevented the formation of cytopathic effects (CPE), and RT-PCR analysis did not detect amplification of rotavirus genetic material. This activity is associated with the bioactive compounds detected in the extract, including tannins, flavonoids, saponins, coumarins, and terpenes, which were the main classes of natural compounds identified. Among 14 species selected based on their ethnopharmacological use for treating diarrhea, Hymenaea courbaril L. showed significant antiviral activity against rotavirus.

Evidence characterization: Antiviral evidence is entirely in vitro. No human studies have been conducted. Evidence is preliminary.

5.2. Anti-Inflammatory Activity

A systematic review brought together existing pharmacological and phytochemical evidence on the therapeutic potential of Hymenaea spp.; a total of 17 studies were included, phytochemical analyses identified flavonoids, triterpenes, procyanidins, xyloglucans, and caryophyllene oxide among the major bioactive constituents, and the reported biological activities were primarily anti-inflammatory, antioxidant, immunomodulatory, antimicrobial, and antiproliferative.

Mechanistic findings consistently substantiated anti-inflammatory evidence through COX/LOX inhibition, cytokines, and redox-related modulations. The labdane diterpenoids isolated from the fruit pods — including crotomachlin and labdanolic acid — were characterized in a bioassay-guided study for COX enzyme and lipid peroxidation inhibitory activities.

A study designed to give a scientific basis to the traditional use of H. courbaril evaluated antioxidant, myorelaxant, and anti-inflammatory properties of the ethanol extract from stem bark and its fractions; oral pretreatment of antigen-challenged animals with the ethyl acetate fraction prevented airway hyperresponsiveness on KCl-induced contraction and reduced the number of total white cells, particularly eosinophils and neutrophils in bronchoalveolar lavage.

Although most evidence derives from acute inflammation models, no study to date has investigated chronic inflammatory pathways or conducted comprehensive mechanistic mapping.

Evidence characterization: Anti-inflammatory evidence rests primarily on in vitro enzyme inhibition assays and preclinical (animal) studies. No human clinical trials have been published. Evidence is preliminary to moderate at the preclinical level.

5.3. Antioxidant Activity

A systematic review assessed the available published information concerning the antioxidant potential of Hymenaea courbaril L. (jatobá) derived from ethnobotanical studies of populations from the Brazilian Caatinga biome. Multiple in vitro assays (DPPH, ABTS, FRAP) across several studies have demonstrated dose-dependent radical scavenging activity in bark, leaf, and pulp extracts. The DPPH assay demonstrated that H. courbaril hydroalcoholic extract exhibited potent antioxidant activity, with an IC50 of 3.12 μg/mL.

Evidence characterization: Antioxidant activity is well-documented in vitro across multiple extract types. Human clinical evidence is absent. Overall evidence strength is preliminary.

5.4. Myorelaxant and Respiratory Activity

A study guided by myorelaxant activity of H. courbaril stem bark found that the ethyl acetate fraction (EAF) reduced smooth muscle contractions. EAF reduced contractions depending on divalent cation inflow through voltage-operated Ca²⁺ channels (VOCCs) or receptor-operated Ca²⁺ channels (ROCCs), and was more potent in inhibiting VOCC- than ROCC-dependent contraction. Oral pretreatment with EAF prevented airway hyperresponsiveness on KCl-induced contraction and reduced the number of total white cells, particularly eosinophils and neutrophils, in bronchoalveolar lavage in animal models.

Evidence characterization: Evidence is confined to animal (rodent) studies. No human trials on respiratory or bronchospasm outcomes have been published. Evidence is preliminary.

5.5. Antiproliferative / Anticancer Activity

Caryophyllene oxide (OXC) was identified as the most active compound from the bioguided fractionation of the leaf hexane total extract of Hymenaea courbaril L. and was recognized as a potential anti-proliferative agent for the treatment of androgen-independent prostate PC-3 cancer cells. H. courbaril has been used in traditional medicine in South America to treat several diseases, including prostate cancer; leaves' extracts from different polarities were evaluated using the MTT cell viability assay to determine cytotoxicity in prostate p53-null cells, followed by bioguided fractionations to obtain the most cytotoxic fraction considering the selectivity index.

The systematic review further identified caryophyllene oxide as an active compound with antiproliferative effects in prostate cancer cell lines, though the intracellular mechanisms driving apoptosis remain unexplored. No study has performed transcriptomic analysis or receptor-binding assays to elucidate the specific intracellular targets involved in tumor suppression.

Xyloglucans from H. courbaril induce the secretion of IL-1, which can be considered an enhancer of tumor elimination.

Evidence characterization: All antiproliferative evidence is in vitro (cell line studies). No animal tumor models or human trials have established efficacy. Evidence is very preliminary.

5.6. Immunomodulatory Activity

Polysaccharides extracted from the seeds of Hymenaea spp. have been shown to enhance nitric oxide production and phagocytic capacity, reinforcing the species' immunostimulatory potential. Overall, these immunomodulatory and antiproliferative effects may partially explain the traditional use of these plants in managing infections and inflammatory conditions, suggesting relevant pharmacological potential for inflammatory disease management, albeit still at a preliminary stage.

Evidence characterization: Immunomodulatory findings are based on in vitro cell studies. No human immunological trials exist. Evidence is preliminary.

5.7. Nutritional and Digestive Health

The nutritional composition of jatobá pulp highlights fibers as the main component, which may be related to several health-promoting effects. Researchers have identified the presence of carbohydrates, lipids, and proteins in the fruit pulp, as well as carotenoids, phenolic compounds, and vitamin C. Investigations of the hydrocolloids extracted from the pulp and seeds highlighted high content of carbohydrates, fibers, and minerals, as well as good emulsifying properties, indicating that these compounds are promising for use as functional ingredients in foods and edible films.

Evidence characterization: The nutritional composition is well-characterized analytically, but clinical studies on specific digestive or metabolic outcomes in humans are lacking.

6. Body Systems and Health Areas Associated with Jatoba

• Respiratory system: The jatoba's bark and leaves have medicinal properties traditionally attributed to treating headache, general pain, inflammation, colds, and bronchitis. Preclinical animal data support a myorelaxant and airway anti-inflammatory effect.
• Gastrointestinal system: Experimental evidence confirmed that Hymenaea spp. could be used in treating inflammatory disorders, asthma, diarrhea, and some microbial infections. Traditional use includes antidiarrheal and antiparasitic applications.
• Immune system: Seed polysaccharides (xyloglucans) have demonstrated immunomodulatory activity in vitro, enhancing macrophage function and cytokine secretion.
• Genitourinary system: Traditional use includes cystitis, prostatitis, and conditions of the kidney and urinary tract.
• Musculoskeletal system: Some Hymenaea species are also used as vermifuge and for the treatment of arthritis and inflammation conditions.
• Skin and wound healing: Topical use of bark preparations and resin for wounds is documented in ethnobotanical records across multiple Amazonian traditions.
• Hematological: Traditional use for anemia is recorded across Brazilian folk medicine, though no clinical evidence has validated this indication.
• Oncology (preclinical): In vitro antiproliferative effects against prostate and potentially other cancer cell lines have been demonstrated, driven largely by caryophyllene oxide.

7. Dosage Forms and Reported Study Dosages

No standardized or clinically validated dosage for any indication in humans has been established for H. courbaril. The following dosages and concentrations appear in the published research literature:

• In vitro antibacterial MIC values: MIC values of 125, 250, 500, 750, and 1000 μg/mL against various bacterial clinical isolates, using ethanol extract and fractions from bark.
• In vitro antifungal (xylem sap): MIC less than 256 μg/mL for the xylem sap against dermatophytes and C. neoformans, and less than 128 μg/mL for isolated fisetin.
• Antioxidant activity (DPPH): IC50 of 3.12 μg/mL for the stem bark hydroalcoholic extract.
• Cytotoxicity of stem bark extract (in vitro): The extract at concentrations of 400 and 800 μg/mL decreased cell viability 48 hours after treatment in L929 and MRC-5 cell lines.
• Caenorhabditis elegans toxicity model: H. courbaril extract only affected the survival of C. elegans at concentrations of 800 and 1600 μL/mL.
• Mutagenicity (Ames test): The extract exhibited low mutagenic potential without metabolic activation, with effects observed only at the highest concentrations tested.
• Nutritional (pulp flour): Fibrous pulp residue and pulp flour contained approximately 49 g/100 g and 44 g/100 g of dietary fiber, respectively, and approximately 11–12 g/100 g of protein.
• Traditional bark tea (infusion preparation): One study on a related Hymenaea species documented infusions prepared using 400 grams of fresh bark in 250 mL of boiling water as the recommended proportion for consumption in traditional settings.

8. Safety Considerations

Overall Toxicological Profile

Data indicate that the different extracts of H. courbaril generally exhibit low toxicity, as evidenced by in vitro and mutagenicity assays. Low acute toxicity has been demonstrated in in vivo assays. However, reports on the toxicity of Hymenaea species remain scarce.

Genotoxicity and Mutagenicity

In the alkaline comet assay the stem bark extract was found to be non-genotoxic; in the Ames test the extract exhibited low mutagenic potential without metabolic activation, since only the highest concentrations produced an effect.

Cytotoxicity at High Concentrations

The stem bark extract at concentrations of 400 and 800 μg/mL decreased cell viability 48 hours after treatment in L929 (mouse fibroblast) and MRC-5 (human lung fibroblast) cell lines. These findings demonstrate that H. courbaril extract appears to exert low toxicity as evidenced in vitro and mutagenicity assays; however, the biological relevance of the response of C. elegans survival to safety assessments needs further study.

Fisetin (Isolated Compound) Cytotoxicity

The isolated compound fisetin showed lower toxicity (IC50 = 158 μg/mL) compared to the fresh xylem sap (IC50 = 109 μg/mL), suggesting safety for the use of this natural compound, although further studies are necessary to ensure and confirm its therapeutic potential.

Mineral Content and Manganese Considerations

General safety regarding metal content (Na, K, Ca, Fe, Zn, and Ni) and the nonmetal P was assured in Hymenaea teas, as none of them exceeded the safety limit for daily intake. However, the content of manganese (Mn) observed in the teas of the related species H. martiana is above the upper tolerable intake level (UL) for children aged 1–6 years. This finding may have relevance for pediatric use of jatoba teas.

Absence of Human Safety Data and Research Gaps

Despite promising results, significant gaps remain regarding its chemical characterization, medicinal, and nutraceutical potential; further research is highlighted as necessary to validate traditional uses, ensure safe applications, and explore new therapeutic prospects. No systematic studies of drug–herb interactions, long-term safety data, or controlled human pharmacokinetic studies have been published. No regulatory monograph from the WHO, EMA, ESCOP, or German Commission E has been issued for Hymenaea courbaril as of the time of writing.

Resin: Genotoxic Assessment

A study evaluating the phytochemical composition of H. courbaril resin and performing in vivo evaluation of toxic and genotoxic effects in the Drosophila melanogaster model found terpenes, flavonoids, and coumarins in the ethanolic total extract; the resin's genotoxic and toxic profile was assessed in this model.

9. Evidence Gaps and Research Status

Despite promising results, gaps remain regarding the chemical characterization, medicinal, and nutraceutical potential of H. courbaril; the existing scientific literature highlights the need for further research to validate traditional uses, ensure safe applications, and explore new therapeutic prospects. Comprehensive evidence-based evaluations of the pharmacological potential of Hymenaea spp. remain limited.

Across all pharmacological categories reviewed — antimicrobial, antiviral, anti-inflammatory, antioxidant, antiproliferative, myorelaxant, and immunomodulatory — the available evidence derives almost exclusively from in vitro assays and animal models. The great potential of plants such as Hymenaea courbaril L. has not yet been thoroughly explored scientifically, and it is therefore very important to investigate their pharmacological and toxicological activities to establish real efficacy and safety. No randomized controlled trials, systematic reviews of clinical trials, or regulatory authority assessments of efficacy have been identified in the peer-reviewed literature.

References

• Coelho Gonçalves et al. (2026). Chemical and Biological Properties of Hymenaea courbaril L.: A Review. Chemistry & Biodiversity / PMC.
• Chemical and Biological Properties of Hymenaea courbaril L.: A Review — PubMed abstract.
• Boniface PK, Baptista Ferreira S, Roland Kaiser C. (2017). Current state of knowledge on the traditional uses, phytochemistry, and pharmacology of the genus Hymenaea. Journal of Ethnopharmacology 206:193–223.
• From Folk Medicine to Pharmacology: A Systematic Review of the Anti-Inflammatory Evidence for Hymenaea spp. (Fabaceae) — PMC.
• Costa CR et al. (2014). Antifungal and cytotoxicity activities of the fresh xylem sap of Hymenaea courbaril L. and its major constituent fisetin. BMC Complementary and Alternative Medicine 14(1):245.
• Delgado C, Mendez-Callejas G, Celis C. (2021). Caryophyllene Oxide, the Active Compound Isolated from Leaves of Hymenaea courbaril L. with Antiproliferative and Apoptotic Effects on PC-3 Androgen-Independent Prostate Cancer Cell Line. Molecules 26(20):6142.
• Cruz JERD et al. (2023). Evaluation of the Antioxidant, Antimicrobial, and Anti-Biofilm Effects of the Stem Bark, Leaf, and Seed Extracts from Hymenaea courbaril and Characterization by UPLC-ESI-QTOF-MS/MS Analysis. Antibiotics 12(11):1601.
• Toxicological profile of the Hymenaea courbaril stem bark hydroalcoholic extract using in vitro bioassays and an alternative in vivo Caenorhabditis elegans model. Journal of Toxicology and Environmental Health, Part A (2023).
• Jayaprakasam B et al. (2007). Terpenoids from Stinking toe (Hymenaea courbaril) fruits with cyclooxygenase and lipid peroxidation inhibitory activities. Food Chemistry.
• Bezerra G et al. (2013). Phytochemical study guided by the myorelaxant activity of the crude extract, fractions and constituent from stem bark of Hymenaea courbaril L. Journal of Ethnopharmacology 149(1):62–69.
• Hymenaea courbaril — ScienceDirect Topics overview.
• Jatobá (Hymenaea courbaril L.) — Handbook of Phytonutrients in Indigenous Fruits and Vegetables, CABI Digital Library.
• Nutritional profile, bioactive compounds and antioxidant capacity of jatobá-da-mata (Hymenaea courbaril, var. stilbocarpa) by product. Revista Chilena de Nutrición (2020).
• Culture matters: A systematic review of antioxidant potential of tree legumes in the semiarid region of Brazil — PMC (2022).
• Evaluation of Level of Essential Elements and Toxic Metal in the Medicinal Plant Hymenaea martiana Hayne (Jatobá) Used by Mid-West Population of Brazil — PMC.
• Hymenaea courbaril — World Agroforestry Centre Species Profile.
• Labdane diterpenoids as potential anti-inflammatory agents — PubMed (2017).
• In vivo evaluation of the toxic activity and genotoxicity of the Hymenaea courbaril L. resin in Drosophila melanogaster — PubMed (2022).