Arugampul (Cynodon dactylon)

Arugampul (Cynodon dactylon) is a medicinal grass in Siddha medicine containing bioactive compounds like flavonoids and saponins that support wound healing and gastric protection. Research shows it enhances tissue granulation and epithelialization while reducing gastric acid secretion through anti-inflammatory pathways.

Origin & History

Arugampul (Cynodon dactylon), commonly known as Bermuda grass or Durva, is a perennial grass native to tropical and subtropical regions worldwide, particularly found in India, Africa, and Australia. The whole plant including aerial parts, roots, and rhizomes is used medicinally, prepared as fresh juice, aqueous decoctions, cold infusions, pastes, or ethanolic/methanolic extracts.

Historical & Cultural Context

In Ayurveda and Siddha systems of Indian traditional medicine, Cynodon dactylon has been used for over 1,000 years to treat bleeding disorders, skin conditions, eye disorders, digestive problems, and nervous system disorders. It features in traditional formulations like Raktasthambaka tablet for bleeding disorders and Durvadi taila for wounds and scabies.

Health Benefits

• Wound healing support - One open-label clinical study showed significant improvements in granulation, epithelialization, and vascularity of chronic wounds (evidence: preliminary human data)
• Gastroprotective effects - Preclinical studies in rats showed 50% ethanolic extract at 300-600 mg/kg reduced ulcer index in multiple ulcer models (evidence: animal studies only)
• Anticonvulsant properties - Ethanolic extract suppressed seizures in mice models of maximal electroshock and pentylenetetrazol-induced convulsions (evidence: animal studies only)
• Immune system modulation - Cynodon Dactylon Protein Fractions (CDPF) increased neutrophil count and antibody titre in mice (evidence: animal studies only)
• Traditional bleeding disorder management - Used for epistaxis, menorrhagia, and hematuria in Ayurvedic and Siddha medicine for over 1,000 years (evidence: traditional use only)

How It Works

Arugampul's flavonoids and saponins modulate inflammatory pathways by inhibiting cyclooxygenase and lipoxygenase enzymes, reducing pro-inflammatory cytokines like TNF-α and IL-1β. The compound's gastroprotective effects involve increasing prostaglandin E2 synthesis and mucus production while reducing gastric acid secretion. Its wound healing properties work through enhanced collagen synthesis and angiogenesis via VEGF pathway activation.

Scientific Research

Clinical evidence for Arugampul is limited to one open-label wound healing study showing significant improvements (p<0.05) in wound parameters, though sample size and blinding details were not specified. No randomized controlled trials, meta-analyses, or PubMed-indexed studies were identified in the available research, with evidence primarily derived from preclinical animal models and traditional medicine documentation.

Clinical Summary

One open-label clinical study demonstrated significant improvements in chronic wound healing parameters including granulation, epithelialization, and vascularity, though sample size and control group details were not specified. Preclinical rat studies showed 50% ethanolic extract at 300-600 mg/kg provided gastroprotective effects against ulcer formation. The current evidence base consists primarily of preliminary human data and animal studies, requiring larger randomized controlled trials for clinical validation. Most research has focused on topical applications rather than oral supplementation.

Nutritional Profile

Arugampul (Cynodon dactylon) has been partially characterized nutritionally, with available data primarily from crude extract and phytochemical analyses rather than standardized food composition studies. Crude protein content ranges from approximately 8–12% dry weight, making it a modest protein source compared to conventional leafy greens. Crude fiber content is relatively high at approximately 25–35% dry weight, consistent with its grass morphology, which may contribute to digestive bulk and prebiotic effects. Crude fat content is low, approximately 1–3% dry weight. Ash content (mineral residue) is approximately 10–15% dry weight, suggesting a meaningful mineral load. Specific mineral data indicates the presence of calcium (reported at approximately 340–400 mg/100g dry weight), phosphorus (approximately 180–220 mg/100g dry weight), potassium (approximately 300–350 mg/100g dry weight), iron (approximately 4–6 mg/100g dry weight), and magnesium at moderate concentrations. Vitamin C (ascorbic acid) has been detected at approximately 40–60 mg/100g fresh weight, though this degrades rapidly post-harvest. Beta-carotene (provitamin A) is present given the plant's chlorophyll-rich tissue, with estimated concentrations of 2–4 mg/100g dry weight, though precise standardized values are limited. Key bioactive compounds include flavonoids (apigenin, luteolin, and their glycosides), alkaloids (cynodontin), triterpenoids (beta-sitosterol, stigmasterol), saponins, tannins (approximately 2–4% dry weight), and phenolic acids (caffeic acid, ferulic acid). Chlorophyll content is substantial, consistent with the grass family. Glycosides including cynodin have been identified and are considered contributors to bioactivity. Bioavailability note: mineral bioavailability may be reduced by the presence of oxalates, tannins, and phytates in the plant matrix. The plant is typically consumed as fresh juice or aqueous decoction in traditional Southeast Asian and South Asian practice, with juice extraction likely improving bioavailability of water-soluble compounds (vitamin C, potassium, flavonoid glycosides) while concentrating chlorophyll and alkaloids. Data gaps remain for standardized quantification of individual amino acids, precise glycemic index, and fat-soluble vitamin fractions.

Preparation & Dosage

Traditional dosages include: fresh juice 15-20 ml for epileptic seizures/psychosomatic disorders, 50-60 ml decoction/cold infusion for bleeding disorders or urinary issues, and 50 ml for blood-mixed diarrhea. Preclinical animal studies used 300-600 mg/kg of 50% ethanolic extract for gastroprotection and 80 µg/kg/day methanolic extract for antitumor effects, though human clinical dosages have not been established. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Turmeric, Neem, Ashwagandha, Triphala, Gotu Kola

Safety & Interactions

Arugampul is generally considered safe when used traditionally, though comprehensive safety data from clinical trials is limited. No significant adverse effects have been reported in available studies, but long-term safety profiles remain unestablished. Potential interactions with anticoagulant medications may exist due to its anti-inflammatory properties, though specific drug interactions have not been documented. Pregnant and breastfeeding women should avoid use due to insufficient safety data in these populations.