Borotutu

Other Names

BorututuBrututuBurututuCochlospermum angolenseCochlospermum angolensisMaximilianea angolensismburututupaajawupagajawu

Synopsis

Borotutu (Cochlospermum angolense): A Comprehensive Reference

1. Identity and Botanical Classification

Scientific Name and Taxonomy

Cochlospermum angolense is a tree in the family Bixaceae, native to Angola and the Democratic Republic of the Congo. According to the Royal Botanic Gardens, Kew (Plants of the World Online), its native range extends from Angola to western DRC, and it grows primarily in the wet tropical biome. The species was first formally described by the Austrian botanist Friedrich Welwitsch and subsequently published by Daniel Oliver in Flora of Tropical Africa (1868). A botanical synonym is Maximilianea angolensis (Welw. ex Oliv.) Kuntze, published in Revisio Generum Plantarum (1891).

Borututu (Cochlospermum angolensis Welw. ex Oliv., family Bixaceae or Cochlospermaceae) is an African tree indigenous to Angola (West Africa) and the Democratic Republic of Congo (Central Africa). The genus Cochlospermum belongs to the order Malvales within the eudicot flowering plants. The family Bixaceae is sometimes referred to by an older family name, Cochlospermaceae, which appears in older literature and on commercial supplement labeling.

Common Names

Borotutu is traditional medicine made from the African tree Cochlospermum angolense. It is widespread in parts of Angola, where it is known as mburututu in the Chokwe and Kimbundu languages. In Ghana, where the bark is locally known as paajawu, it is added to shea butter during the boiling process for a vibrant yellow coloring. Additional vernacular spellings encountered in the scientific literature include borututu, burututu, and brututu. The material is sometimes marketed in Western supplement markets simply as "borotutu bark."

Plant Description and Habitat

Cochlospermum angolense is a shrub or small tree, usually growing from 3–7 metres tall, but sometimes smaller. It is distributed across western tropical Africa — Angola and southern Congo — and inhabits dry woodland, grass-grown thickets, or savannahs on rocky, sometimes loamy soil, usually at elevations from 700–1,800 metres, but sometimes as low as 400 metres. The tree produces yellow, star-shaped flowers with five petals.

Commercial Preparations and Dosage Forms

Borotutu bark pills and herbal teas are sold in health stores. Several formulations based on the plant are available on the market, such as infusions, pills, capsules, and syrups, among others. In the European market, commercial products observed in published research include dry bark material for infusion preparation, pills containing 500 mg of borututu roots (with microcrystalline cellulose as a diluent, dibasic calcium phosphate anhydrous and silicon dioxide as anti-agglomerating agents, and magnesium stearate as a lubricant), and a syrup containing 10% of borututu roots. Tinctures prepared in ethanol, water, and vegetable glycerin are also commercially available. Borututu roots are currently marketed in Europe primarily by herbalists and commercial establishments.

2. Traditional and Historical Use

Angolan and Central African Traditions

Borututu (Cochlospermum angolense) is a plant native to Africa. The infusion obtained from borututu roots by decoction with water has been traditionally consumed by many African communities for the treatment of malaria due to its hepatoprotective properties. An extract of Cochlospermum angolense is used in the traditional medicine of Angola for the therapy of icterus (jaundice) and for the prophylaxis of malaria.

Cochlospermum angolensis Welw. (borututu) is a widespread medicinal plant in Angola, where the bark infusion has been traditionally used by healers for the treatment of many liver diseases and for the prophylaxis of malaria. The bark of the borututu tree has been used in the preparation of traditional local beverages and as a remedy for various diseases.

Cochlospermum species have long been linked to the therapeutic management of inflammation, infection, asthma, jaundice, and ulcers, among other diverse illnesses.

Preparation Methods in Traditional Practice

The traditional preparation involves decoctions or infusions of the bark, consumed to help with "liver cleansing" and to relieve symptoms thought to be related to liver dysfunction. Only the root has been used as an infusion by populations in the treatment of malaria due to its hepatoprotective effects, though in recent decades other extraction techniques have been studied with the aim of developing processes to obtain functional extracts from plant matrices.

Broader Genus-Wide Ethnobotany

Cochlospermum genus plant species are commonly used in traditional medicine for their antimicrobial, antiparasitic, anti-inflammatory, and hypoglycemic properties. Related species, such as C. tinctorium and C. planchonii, are used in West Africa (Ivory Coast, Niger, Burkina Faso) for the same antimalarial and hepatoprotective purposes documented for C. angolense in Angola. Among the three endemic African species, C. angolense, C. planchonii, and C. tinctorium have attracted the greatest interest due to their hepatoprotective properties and their use in the treatment of malaria.

In Malanje Municipality (north-central Angola), Cochlospermum angolense (locally called Mbrututo) is traditionally used for hepatic disorders and malaria prophylaxis, and has been supported by recent analyses reporting strong antioxidant and hepatoprotective effects; however, as with many medicinal species, rigorous toxicity evaluations and clinical-outcome research remain scarce.

3. Key Phytochemical Constituents

Overview of Chemical Classes

The phytochemical investigation of the leaves, bark, and roots of Cochlospermum angolense Welw ex Oliv — a valued plant that is widely used in traditional Angolan medicine — holds significant importance. Compounds were extracted from the plant using acetone and ethanol and identified by HPLC-ESI-MSn. HPLC analysis revealed a diverse array of bioactive compounds, including flavonoids, phenols, alkaloids, quinones, and terpenes, which help neutralize free radicals and protect cells against oxidative stress.

Members of the Cochlospermum genus are renowned for their richness in secondary metabolites, notably phenolic compounds, flavonoids, lignans, carotenoids, and sterols, which underpin their extensive medicinal applications.

Principal Identified Compounds

A 2017 study published in Antioxidants (PubMed PMID 28134834) performed activity-guided fractionation of borututu bark and identified the following key constituents:

Gallic acid and protocatechuic acid: In order to substantiate the claimed activity of borututu supplements, researchers performed activity-guided fractionation of the total extract utilizing a DPPH free radical scavenging assay. Subsequent flash and centrifugal chromatography resulted in the isolation of gallic acid (compound 1) and protocatechuic acid (compound 2) as the main antioxidant constituents.
Cochloxanthin and dihydrocochloxanthin: Two apocarotenoids and one flavonoid were also isolated from the chloroform fraction and were identified as cochloxanthin (3), dihydrocochloxanthin (4), and 7,4′-dimethyltaxifolin (5), respectively. These distinctive apocarotenoid pigments are responsible for the characteristic red-orange color of the root extracts and are shared with closely related Cochlospermum species.
Ellagic acid and its derivatives: The hydromethanolic extract of C. angolensis revealed high levels of methyl ellagic acid and its derivatives, with methyl ellagic acid pentoside isomer as the major compound, and the aqueous extract showed high amounts of ellagic acid and its derivatives.
Additional phenolic antioxidants: Among the phenolic phytochemicals identified in C. angolense, several compounds exhibit notable antioxidant activity. These include 4-heptylresorcinol, antiarol, embelin, zingerone, 5-heptylresorcinol, and 3-O-methylellagic acid.

Newly Identified Compounds (2025)

A 2025 study published in Molecules (PMC12251057) represented a significant advance in the chemical characterization of the species. For the first time, the study identified new compounds never previously reported in this species, such as (+)-abscisic acid, angustine B, pinobanksin, dihydrogenistein, (−)-8-prenylnaringenin, isoquercetin, samandarine, dihydromyricetin, and eupatoriocromene, in the leaves, bark, and roots. A closer comparison of the different plant parts indicated that the leaves are particularly enriched in flavonoids and phenolic compounds.

Volatile Constituents (Essential Oils)

The chemical composition of the essential oils obtained from the leaves and roots of Cochlospermum angolense growing wild in Angola was analyzed for the first time by capillary gas chromatography (GC) and GC/MS. The investigation led to the identification of 67 and 130 compounds from the leaves and roots, respectively. Both oils were strongly characterized by the presence of sesquiterpenoids (68.8% in the leaves and 53.2% in the roots), while monoterpenoids were present in minor percentages (9.8% in the leaves and 26.2% in the roots). The main constituents of the leaves were germacrene D (9.4%), alpha-cadinol (7.4%), and 10-epi-cubenol (6.2%), while the most abundant compounds in the root essential oil were the sesquiterpenes beta-caryophyllene (19.7%) and isoborneol (6.6%).

Quality Control Markers

An HPLC method was developed for fingerprinting borututu samples, with gallic acid, protocatechuic acid, cochloxanthin, and dihydrocochloxanthin (compounds 1–4) suggested as chemical markers for quality control purposes. Ferreres et al. associated the antioxidant activity of a borututu extract with the content of ellagic acid and its derivatives.

4. Established and Proposed Mechanisms of Action

Antioxidant and Free Radical Scavenging

Both acetone and ethanol extracts demonstrated notable abilities to scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH), nitric oxide, and superoxide radicals, as well as to inhibit lipid peroxidation. The phytochemicals found in the leaves, bark, and roots of C. angolense exhibit potent antioxidant properties. Phenolic compounds in particular have been extensively studied for their health benefits, and, characterized by multiple hydroxyl groups on aromatic rings, these secondary metabolites contribute to antioxidant, antimicrobial, and anti-inflammatory activities.

Abourashed and Fu determined by DPPH assay the antioxidant activity of a methanolic extract from borututu and fractions obtained by fractionation with different organic solvents. The authors concluded that the highest antioxidant activity observed was produced by gallic and protocatechuic acid, which were isolated with high purity.

Antiparasitic (Antiplasmodial) Mechanism

From the roots of this plant, red crystalline substances were isolated and tested for their effect on Plasmodium falciparum in vitro and on the DNA and protein synthesis of Plasmodium berghei. The results show the direct antiparasitic effect of the substances extracted from C. angolense. The activity seems to be directed against DNA synthesis. This effect could be demonstrated immediately; protein synthesis, on the contrary, continued for at least 90 minutes at a reduced rate and then stopped.

A German patent (DE4021428A1, 1991) by Presber and colleagues described a carotenoid drug extracted from the roots of Cochlospermum angolense as an anthelmintic agent for the treatment of diseases due to worms, and a separate patent (DE4021427A1, 1991) described antiprotozoal compositions containing root extract of the same species, cited in the literature reviewed by IntechOpen.

Anti-Hepatocellular Carcinoma Activity

The antioxidant and antitumour properties of borututu were positively correlated with phenolics and flavonoid content. The proposed mechanism in in vitro studies involves phenolic-compound-mediated cytotoxicity selectively targeting hepatocellular carcinoma cell lines, though this mechanism has not been validated in human subjects.

5. Scientific Evidence by Area of Use

5.1 Antioxidant Activity

Borututu (Cochlospermum angolensis) is an African tree whose bark has recently emerged as a herbal dietary supplement with claims for antioxidant activity.

Study (Abourashed & Fu, 2017 — in vitro, published in Antioxidants, PMID 28134834): Borututu bark possesses significant in vitro free-radical scavenging activity that supports its use as an antioxidant herbal dietary supplement. The main active constituents were identified as gallic acid and protocatechuic acid. Additionally, the two apocarotenoids cochloxanthin and dihydrocochloxanthin and the flavonoid taxifolin-7,4′-dimethyl ether were identified as significant constituents of the bark.

Study (Pereira et al., 2013 — in vitro comparison study, published in Industrial Crops and Products): Artichoke, milk thistle, and borututu are three plants widely used regarding hepatoprotective effects. Antioxidant properties, anti-hepatocellular carcinoma activity, and toxicity of infusions and dietary supplements of the mentioned plants were evaluated and compared. All the samples revealed antioxidant properties with EC50 values lower than the daily recommended dose, but infusions showed higher biological activity than dietary supplements. Borututu infusion gave the highest antioxidant activity (EC50 ≤ 170 μg/mL).

Study (Samba et al., 2025 — HPLC-ESI-MSn, published in Molecules, PMC12251057): HPLC analysis revealed a diverse array of bioactive compounds including flavonoids, phenols, alkaloids, quinones, and terpenes. Moreover, the acetone and ethanol extracts proved to be excellent sources of antioxidants.

Evidence strength: All antioxidant evidence for borututu is in vitro (cell-free assays and cell-based models). No human clinical trials examining antioxidant endpoints have been published. The preclinical evidence is consistent across multiple independent research groups, but its translational significance to human health remains unestablished.

5.2 Hepatoprotective Effects

Cochlospermum angolense roots infusion inhibited Plasmodium falciparum and depressed the DNA synthesis of mice erythrocytes infected by Plasmodium berghei; its bark infusion, pills, and syrup revealed strong antioxidant activity, with the infusion also demonstrating anti-hepatocellular carcinoma activity, in previous studies performed by the research group of Ferreira et al.

Study (Pereira et al., 2013 — in vitro): Borututu infusion gave the highest antioxidant activity (EC50 ≤ 170 μg/mL), and also revealed anti-hepatocellular carcinoma activity (GI50 = 146 μg/mL) without toxicity in non-tumour liver cells (GI50 > 400 μg/mL). Among the three studied species, borututu infusion proved to be the most complete sample regarding antioxidant and anti-hepatocellular carcinoma activity.

Borututu infusion revealed anti-hepatocellular carcinoma activity without toxicity in this in vitro setting.

Study (Pereira et al., 2014 — syrup formulations, in vitro, published in Food and Function): The infusions and pills, which are the most commonly used, were previously assessed and proved to have antioxidant and anti-hepatocellular carcinoma activity. In the follow-on syrup study, synergistic effects between borututu, artichoke, and milk thistle syrups were evaluated.

Related genus evidence (Cochlospermum tinctorium, animal model): The hepatoprotective effect of C. tinctorium extracts at doses of 100, 200, and 400 mg/kg/bw was evaluated in Wistar rats subjected to hepatotoxicity induction through the administration of 5 g/kg of paracetamol (OECD 423 protocol). The results revealed an absence of acute oral toxicity for the tested recipes. The hepatoprotective tests indicated that the hepatoprotective effect of C. tinctorium is dose dependent. While this study pertains to a related species (C. tinctorium) rather than C. angolense directly, it is illustrative of the genus-level evidence.

Evidence strength: Hepatoprotective evidence for C. angolense itself remains at the in vitro level. No randomized controlled trials (RCTs), observational cohort studies, or systematic reviews have been published for borotutu as a hepatoprotective agent in human subjects. The hepatoprotective data from closely related C. tinctorium in animal models provides indirect support, but direct clinical human evidence for C. angolense is absent.

5.3 Antimalarial / Antiparasitic Activity

Study (Presber et al., 1991 — in vivo mouse model, published in Angewandte Parasitologie, PMID 2039095): A root extract of Cochlospermum angolense showed in vitro a remarkable activity against Plasmodium berghei in the DNA synthesis measurement with 3H-labelled hypoxanthine. This effect could be reproduced under in vivo conditions with the "4-day" suppression test in mice.

Study (Presber et al., 1992 — in vitro, published in Acta Tropica, PMID 1356304): From the roots of this plant, red crystalline substances were isolated and tested for their effect on Plasmodium falciparum in vitro and on the DNA and protein synthesis of Plasmodium berghei. The multiplication of P. falciparum was decreased to 50% of the control in the presence of 10 μg/mL extracted material, and there was a total inhibition at a concentration of 50 μg/mL. When mice erythrocytes infected by P. berghei were incubated for 6 hours with 25 μg/mL of the extract, DNA synthesis was depressed to nearly background level.

The bark showed activity against the rodent malaria parasite Plasmodium berghei in laboratory tests.

Evidence strength: Antimalarial evidence for borotutu consists of in vitro studies on parasite cultures and one in vivo rodent model. These studies are from the early 1990s and have not been followed by human clinical trials. The absence of human pharmacokinetic or clinical efficacy data means this indication remains unproven in humans.

5.4 Antimicrobial Activity

Study (Barros et al., 2015 — in vitro antimicrobial, published in Industrial Crops and Products): The infusion showed antimicrobial activity against multiresistant bacteria, with protocatechuic acid as the most abundant phenolic compound in the infusion. Three different formulations (infusion, pills, and syrup) of C. angolensis were characterized by HPLC-DAD-ESI/MS regarding phenolic composition, and evaluated by their in vitro antimicrobial activity against clinical isolates of multiresistant bacteria. Infusion and pills showed the highest variety of phenolic compounds, with eleven molecules identified.

In the syrup, there was no antimicrobial activity detected, which is in agreement with its low concentrations of phenolic compounds. None of the formulations inhibited Proteus mirabilis. Considering the obtained results, C. angolensis infusion can be considered a good source of phenolic compounds as well as a good antimicrobial agent.

Evidence strength: All antimicrobial evidence is in vitro. No human clinical data exist for antimicrobial indications.

5.5 Anti-depressant and Anti-cholinesterase Activity (In Vitro)

Study (Ferreres et al., 2013 — in vitro, published in Phytochemical Analysis): The study described HPLC-DAD-ESI/MSn profiling, quantification, and in vitro anti-depressant, anti-cholinesterase, and anti-oxidant activities from C. angolensis extracts, with ellagic acid and its derivatives as the primary identified phytochemicals. Phenolic composition of borututu hydromethanolic and aqueous extracts were recently characterized and revealed to be rich in methyl ellagic acid and ellagic acid, respectively. The anti-depressant and anti-cholinesterase assays in this study were enzyme-based in vitro tests, not human studies.

Evidence strength: Preliminary in vitro evidence only. No human trials have assessed borotutu for mood or cognitive outcomes.

5.6 Pressurized Liquid Extraction and Bioactive Yield

Using pressurized liquid extraction (PLE), researchers evaluated different green/ecological solvents (water, ethanol, and ethyl acetate), providing lower consumption, different extraction temperatures (50–200°C), and short extraction times (10 minutes), obtaining extraction yields with high concentrations of total phenolic compounds (TPC) for root (57–21%) and flower (47–16%) extracts. These values were considerably higher than those obtained by conventional decoction. Ellagic acid, and ellagic and methyl ellagic acid glycosides were the main phenolic compounds found in the extracts.

6. Body Systems and Health Areas Associated with Borotutu

Based on the published peer-reviewed literature, the following body systems and health areas are the focus of research into borotutu:

Hepatic (liver) system: Artichoke, milk thistle, and borututu are three plants widely used regarding hepatoprotective effects. In vitro studies have demonstrated activity against hepatocellular carcinoma cell lines and antioxidant protection of non-tumour liver cells.
Immune/antiparasitic: In vitro and rodent-model studies have demonstrated inhibition of Plasmodium falciparum and P. berghei, the causative agents of human and rodent malaria respectively.
Infectious disease / antimicrobial: In vitro antimicrobial activity against multiresistant clinical bacterial isolates has been reported.
Antioxidant/cellular protection: Multiple studies confirm scavenging of DPPH, nitric oxide, and superoxide radicals, and inhibition of lipid peroxidation in cell-free or cell-based assays.
Neurological (in vitro only): Anti-cholinesterase and anti-depressant enzyme inhibition activities have been reported in vitro, associated with ellagic acid derivatives.
Gastrointestinal: Traditional use for indigestion and gastrointestinal complaints is widely reported; the genus has been linked to anti-ulcer properties, though no clinical studies for C. angolense specifically have been published.

7. Dosage Forms and Reported Doses

No standardized clinical dosing protocols have been established for borotutu in peer-reviewed literature, as no human clinical trials have been completed. The following dosage information appears solely in the research and commercial literature reviewed:

Pills (commercial, European market): Pills observed in published research contained 500 mg of borututu roots, with microcrystalline cellulose, dibasic calcium phosphate anhydrous, silicon dioxide, and magnesium stearate as excipients.
Syrup (commercial, European market): Commercial syrup formulations contained 10% of borututu roots, with citric acid as an acidity regulator, and potassium sorbate, sodium benzoate, and propyl [paraben] as preservatives.
Infusion (traditional): The infusion obtained from borututu roots by decoction with water has been traditionally consumed by many African communities. The search for ecological alternatives has explored pressurized liquid extraction in comparison to the most commonly applied conventional solid-liquid extraction processes.
In vitro / preclinical concentrations (not clinical doses): The multiplication of P. falciparum was decreased to 50% of the control in the presence of 10 μg/mL extracted material, and there was total inhibition at a concentration of 50 μg/mL in the Presber et al. (1992) cell culture study. Borututu infusion gave the highest antioxidant activity (EC50 ≤ 170 μg/mL), and anti-hepatocellular carcinoma activity at GI50 = 146 μg/mL in the Pereira et al. (2013) in vitro study. These are laboratory concentrations, not human dosage recommendations.

8. Safety Considerations and Notable Findings

Hepatotoxicity Assessment in Vitro

Borututu infusion revealed anti-hepatocellular carcinoma activity (GI50 = 146 μg/mL) without toxicity in non-tumour liver cells (GI50 > 400 μg/mL). This selectivity in an in vitro cell model is encouraging; however, in vitro cytotoxicity data do not predict safety in humans. In the same comparative study, borututu infusion revealed anti-hepatocellular carcinoma activity without toxicity in vitro, whereas artichoke infusion presented the highest anti-hepatocellular carcinoma activity but with toxicity to non-tumor cells at a higher concentration.

Acute Oral Toxicity (Related Species)

A study evaluating the hepatoprotective effects and acute oral toxicity of 10 traditional recipes based on Cochlospermum tinctorium in Benin used the OECD 423 protocol for acute oral toxicity assessment. The results revealed an absence of acute oral toxicity for the 10 tested recipes. This data applies to a related species; no equivalent OECD-standard acute oral toxicity study for C. angolense itself has been identified in the published literature.

Formulation-Dependent Activity Differences

Three different formulations (infusion, pills, and syrup) of C. angolensis were characterized regarding phenolic composition and antimicrobial activity. Infusion and pills showed the highest variety of phenolic compounds, with eleven molecules identified. In the syrup, there was no antimicrobial activity detected, which is in agreement with its low concentrations of phenolic compounds. This indicates that the bioactive profile and activity of commercial products can vary substantially by formulation type.

Evidence Gaps and Research Limitations

Scientific studies on borotutu are limited but suggest some hepatoprotective and antioxidant properties. As with many medicinal species, rigorous toxicity evaluations and clinical-outcome research remain scarce. Despite the high antioxidant content typical of these species, few studies have directly compared the pharmacological and phytochemical profiles across plant parts or formulations.

The 2025 Samba et al. study (PMC12251057) represents the most comprehensive phytochemical characterization of C. angolense to date, but these findings open new avenues for future therapeutic and pharmacological research, further supporting its traditional use in Angolan medicine — acknowledging that this research is still at an early, exploratory stage.

Anthelmintic and Antiprotozoal Patent Claims

Presber and colleagues (University of Berlin, 1991) filed two German patents: one (DE4021428A1) for a carotenoid drug extracted from roots of Cochlospermum angolense as an anthelmintic agent to treat diseases due to worms, and one (DE4021427A1) for antiprotozoal compositions containing root extract of the same species. These patents were filed based on preclinical data and do not constitute approval of efficacy or safety in humans by any regulatory authority.

Shea Butter Interaction (Non-Medicinal Use)

In Ghana, the bark (locally known as paajawu) is added to shea butter during the boiling process for a vibrant yellow coloring. This cosmetic/food-processing application is distinct from its medicinal uses and does not have a documented safety concern in the literature reviewed.

References

Health Conditions

Health conditions that Borotutu may help support.

No conditions available.

Body Systems

Body systems that Borotutu may help support.

No body systems available.