Hermetica Superfood Encyclopedia
The Short Answer
Wollastonia biflora contains flavonoids, wedelolactone, chlorogenic acid analogues, stigmasterol, and phenolic glycosides that exert antioxidant, anti-inflammatory, and cytotoxic effects through free-radical scavenging, membrane stabilization, and proteinase inhibition. Methanolic leaf extract demonstrated an ABTS radical scavenging IC50 of 124.34 μg/mL and cytotoxicity against MCF-7 breast cancer cells at LC50 189.287 μg/mL, with a selectivity index exceeding 2.458 relative to non-cancerous Vero cells in in vitro preclinical assays.
CategoryHerb
GroupSoutheast Asian
Evidence LevelPreliminary
Primary KeywordWollastonia biflora benefits
Wollastonia biflora — botanical close-up
Health Benefits
**Antioxidant Activity**
Methanolic and flower extracts scavenge ABTS free radicals with IC50 values of 124.34 μg/mL and 80 μg/mL respectively; phenolic compounds including chlorogenic acid analogues and flavonoids are primary contributors to electron-donation capacity.
**Anti-Inflammatory Effects**
Ethanolic leaf extracts inhibit proteinase activity by up to 87.14% and heat-induced erythrocyte hemolysis by 78.11%, indicating membrane-stabilizing properties and suppression of proteolytic inflammatory cascades.
**Antimicrobial Properties**
Methanolic extract at 100 mg/mL produced inhibition zones of 34.33 mm against Escherichia coli and 36 mm against Salmonella typhi, results described as comparable to chloramphenicol in the same assay format.
**Anticancer Potential**
Methanolic extract showed selective cytotoxicity toward MCF-7 human breast adenocarcinoma cells (LC50 189.287 μg/mL) with a selectivity index above 2.458 when compared to non-cancerous Vero cells (LC50 465.357 μg/mL) in MTT-type in vitro assays.
**Hepatoprotective Traditional Use**
In Thai traditional medicine, leaf preparations are used specifically for managing hepatitis, a use that has not yet been validated by controlled clinical trials but aligns with the anti-inflammatory and antioxidant phytochemical profile of the plant.
**Stigmasterol-Associated Bioactivity**
Stigmasterol isolated from callus cultures of W. biflora contributes to antimicrobial and antioxidant activity, with callus systems optimized at 4% sucrose yielding quantifiable stigmasterol for phytochemical study.
**Phytochemical Diversity Supporting Broad Bioactivity**
The presence of tannins, saponins, cardiac glycosides, ceramides, and phenolic glycosides in flowers and leaves suggests multiple mechanistic pathways for biological activity, though each class remains to be studied in isolation under standardized conditions.
Origin & History
Natural habitat
Wollastonia biflora (L.) DC., formerly classified as Wedelia biflora, is a perennial herb native to coastal and tropical regions of Southeast Asia, including Thailand, Malaysia, Indonesia, and extending across the Indo-Pacific island chain to northern Australia. It thrives in sandy coastal soils, mangrove fringes, and disturbed tropical lowland habitats, tolerating high salinity and full sun exposure. The plant has been cultivated informally in traditional Thai and regional herbal medicine gardens, where its leaves and flowers are harvested for medicinal preparations.
“Wollastonia biflora occupies a documented role in Thai traditional medicine, where leaf preparations are specifically employed as a remedy for hepatitis, reflecting a cultural recognition of its hepatoprotective potential that predates any scientific investigation. Across the broader Indo-Pacific region, closely related members of the Wedelia/Wollastonia complex have been used for wound healing, fever reduction, and treatment of skin infections, suggesting a shared ethnopharmacological heritage across Southeast Asian and Pacific Island communities. Preparations have historically taken the form of aqueous decoctions or fresh leaf poultices applied topically, with internal consumption of leaf teas representing the primary route for systemic complaints such as liver disease. The plant's distinction from the more widely studied Wedelia trilobata and Wedelia chinensis has only recently been clarified through metabolite profiling, meaning historical references may conflate species within the complex, necessitating careful botanical verification in ethnobotanical records.”Traditional Medicine
Scientific Research
The entirety of published scientific evidence for Wollastonia biflora consists of in vitro bioassays, GC-MS and HPTLC phytochemical profiling studies, and callus culture experiments; no controlled animal pharmacology studies or human clinical trials have been reported in the available literature. Antioxidant IC50 values (80–124.34 μg/mL), proteinase inhibition percentages (up to 87.14%), and antimicrobial zone diameters (34–36 mm at 100 mg/mL) are derived from small-scale laboratory assays without replicated independent cohorts, limiting generalizability. The cytotoxicity data against MCF-7 cells (LC50 189.287 μg/mL, R²=0.8074) and Vero cells (LC50 465.357 μg/mL, R²=0.9277) originate from single studies without peer-replicated validation, and the regression coefficients indicate moderate but not robust dose-response modeling. Overall, the evidence base is preliminary and entirely preclinical, placing this ingredient firmly in the category of early-stage research candidates requiring animal pharmacokinetic studies, toxicology profiling, and eventually randomized controlled trials before any clinical efficacy conclusions can be drawn.
Preparation & Dosage
Traditional preparation
**Traditional Thai Leaf Decoction**
Fresh or dried leaves are boiled in water and consumed as a tea for hepatitis management; no standardized volume, concentration, or duration has been documented in ethnopharmacological surveys.
**Methanolic Crude Extract (Research Grade)**
Used at 10–250 μg/mL in in vitro antioxidant and cytotoxicity assays; no human-equivalent dose has been established or extrapolated.
**Ethanolic Extract (Research Grade)**
Applied at concentrations producing up to 87.14% proteinase inhibition; effective research concentrations range from 50–200 μg/mL in anti-inflammatory bioassays.
**Fractionated Extracts (Hexane, Chloroform, Ethyl Acetate)**
Used for GC-MS phytochemical profiling; not relevant to supplemental use but indicate lipophilic compound distribution across polarity fractions.
**Standardization**
No commercial standardization to any marker compound (e.g., wedelolactone, chlorogenic acid, or stigmasterol) has been established; HPTLC-based wedelolactone quantification at 0.084% w/w in ethanolic extracts represents the sole semi-quantitative marker reported.
**Commercial Supplement Forms**
No commercial capsule, tablet, tincture, or extract product for Wollastonia biflora has been identified in the published or grey literature as of the available research context.
Nutritional Profile
Wollastonia biflora leaves and flowers contain a diverse array of secondary metabolites rather than notable macronutrient or micronutrient content, as nutritional composition data (calories, protein, fat, carbohydrate, vitamins, minerals) have not been reported in available phytochemical studies. Key phytochemicals include: flavonoids (unquantified total); chlorogenic acid and its analogues (detected by HPLC, concentrations not precisely reported); wedelolactone (approximately 0.084% w/w in ethanolic extract by HPTLC); phytol (0.34–3.70% peak area by GC-MS); n-hexadecanoic acid (palmitic acid, 4.65% peak area); cis-vaccenic acid (an 18:1 omega-7 fatty acid, 12.87% peak area); 1,2,3-propanetriol 1-acetate (13.07–13.08% peak area); stigmasterol (present in callus cultures, unquantified in whole plant); tannins, saponins, cardiac glycosides, ceramides, and phenolic glycosides (qualitatively detected). Bioavailability of lipophilic constituents such as stigmasterol and phytol would be expected to be enhanced by co-administration with dietary fats, but no human bioavailability studies have been conducted.
How It Works
Mechanism of Action
The antioxidant mechanism is primarily attributable to hydrogen atom transfer and single electron transfer from phenolic hydroxyl groups in chlorogenic acid analogues, flavonoids, and tannins, enabling direct ABTS and DPPH radical quenching. Anti-inflammatory activity involves inhibition of extracellular proteinases that cleave pro-inflammatory substrates and stabilization of erythrocyte membranes against heat-induced lysis, a proxy model for lysosomal membrane stabilization that reduces release of inflammatory mediators. Cytotoxic activity against MCF-7 cells is inferred from the lipophilic fraction containing phytol, n-hexadecanoic acid, cis-vaccenic acid, and phenolic glycosides, which may disrupt mitochondrial membrane integrity or intercalate with DNA, though specific receptor targets or signaling cascades have not been elucidated in published mechanistic studies. Stigmasterol, a phytosterol identified in callus cultures, is known across related genera to compete with cholesterol at membrane-level receptor sites and to modulate NF-κB-linked inflammatory signaling, providing a plausible molecular rationale for the observed antimicrobial and anti-inflammatory effects.
Clinical Evidence
No human clinical trials have been conducted on Wollastonia biflora in any indication, including its primary traditional use as a hepatitis remedy in Thai medicine. All outcomes reported in the literature—antioxidant capacity, anti-inflammatory inhibition, cytotoxicity, and antimicrobial activity—were measured in cell-free assays, microbial disc diffusion assays, or human cancer cell line models without in vivo confirmation. Consequently, effect sizes, confidence intervals, and therapeutic dose ranges applicable to human physiology cannot be derived from current data. The existing preclinical signal is biologically plausible and warrants further investigation, but clinicians and formulators should treat all reported activities as hypothesis-generating rather than clinically validated outcomes.
Safety & Interactions
No formal human safety studies, adverse event reports, or established maximum tolerated doses exist for Wollastonia biflora; the entire safety profile is inferred from in vitro cytotoxicity data showing moderate selectivity between cancerous MCF-7 cells (LC50 189.287 μg/mL) and non-cancerous Vero cells (LC50 465.357 μg/mL), indicating potential cytotoxicity to normal cells at higher concentrations. The presence of cardiac glycosides in leaf and flower extracts raises a theoretical concern for cardiac toxicity—particularly bradycardia or arrhythmia—at high doses, and concomitant use with digoxin, antiarrhythmic agents, or other cardiac glycoside-containing botanicals should be approached with caution until interaction studies are available. No drug interaction data exist; however, the antioxidant phenolic content suggests possible pharmacokinetic interactions with CYP450 enzymes metabolizing anticoagulants, immunosuppressants, or chemotherapy agents, as has been observed with structurally similar flavonoid-rich herbs. Use during pregnancy and lactation is not recommended given the complete absence of reproductive safety data and the presence of bioactive compounds with documented cytotoxic and membrane-disrupting properties in preclinical models.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Wollastonia biflora (L.) DC.Wedelia bifloraStemmodontia bifloraTwo-flowered WollastoniaBeach sunflower (regional)
Frequently Asked Questions
What is Wollastonia biflora used for traditionally?
In Thai traditional medicine, Wollastonia biflora leaf preparations are primarily used as a remedy for hepatitis, consumed as a decoction. Across the broader Southeast Asian and Indo-Pacific region, related preparations have also been applied for fever, wound healing, and skin infections, though none of these uses have been validated in controlled human clinical trials.
Does Wollastonia biflora have anticancer properties?
Preclinical in vitro data show that methanolic extract of Wollastonia biflora is cytotoxic to MCF-7 human breast cancer cells at an LC50 of 189.287 μg/mL, with a selectivity index above 2.458 relative to non-cancerous Vero cells (LC50 465.357 μg/mL). These results are promising but derive from single laboratory cell-line studies; no animal tumor models or human cancer trials have been conducted, so no clinical anticancer claims can be made.
What are the main bioactive compounds in Wollastonia biflora?
GC-MS and HPTLC analyses have identified wedelolactone (approximately 0.084% w/w in ethanolic extract), chlorogenic acid analogues, phytol (0.34–3.70% by peak area), cis-vaccenic acid (12.87%), n-hexadecanoic acid (4.65%), and stigmasterol as key phytochemicals, alongside flavonoids, tannins, saponins, phenolic glycosides, ceramides, and cardiac glycosides. The relative contributions of each compound class to the observed biological activities have not been fully delineated in mechanistic studies.
Is Wollastonia biflora safe to take as a supplement?
There are no established human safety data, clinical dose ranges, or adverse event records for Wollastonia biflora as a supplement. The presence of cardiac glycosides in leaf and flower extracts raises a theoretical cardiac risk at high doses, and in vitro data show cytotoxicity to normal Vero cells above certain concentrations. Until formal toxicology and clinical studies are completed, use outside of traditional low-dose decoction contexts is not supported by evidence, and the herb should be avoided during pregnancy and lactation.
How does Wollastonia biflora differ from Wedelia trilobata?
Although formerly classified together within the Wedelia genus, Wollastonia biflora is distinguished from Wedelia trilobata by its HPLC metabolite profile, most notably by the presence of chlorogenic acid and its analogues as dominant phenolic markers, which are less prominent in W. trilobata. Wedelolactone is more extensively documented and quantified in W. trilobata research, whereas W. biflora studies emphasize its distinct flavonoid and chlorogenic acid composition as chemotaxonomic identifiers.
What is the most effective form of Wollastonia biflora for antioxidant benefits?
Flower extracts demonstrate superior antioxidant activity compared to other plant parts, with IC50 values of 80 μg/mL in ABTS free radical scavenging assays. Methanolic extracts show strong antioxidant capacity (IC50: 124.34 μg/mL) due to their high concentration of phenolic compounds and flavonoids. Standardized flower extracts would likely provide more consistent and potent antioxidant effects than whole plant preparations.
How does Wollastonia biflora's anti-inflammatory mechanism compare to common pain relievers?
Wollastonia biflora ethanolic leaf extracts inhibit proteinase activity by up to 87.14%, which is relevant to inflammatory pathways, though this differs mechanistically from standard NSAIDs that primarily inhibit COX enzymes. The herb's anti-inflammatory action appears to work through protein-degrading enzyme inhibition rather than cyclooxygenase suppression. This suggests potential complementary rather than interchangeable use with conventional anti-inflammatory medications.
Why do phenolic compounds and flavonoids matter in Wollastonia biflora supplements?
Phenolic compounds, including chlorogenic acid analogues and flavonoids, are the primary bioactive constituents responsible for Wollastonia biflora's electron-donation capacity and antioxidant activity. These compounds are what enable the herb to scavenge free radicals effectively in laboratory assays. When selecting Wollastonia biflora supplements, looking for extracts standardized to phenolic or flavonoid content would help ensure you're getting the therapeutically active components.
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