Sariva (Hemidesmus indicus)

Sariva (Hemidesmus indicus) is not consumed as a macronutrient-dense food but rather valued for its bioactive phytochemical profile. Key compounds include: Coumarins – notably hemidesmin-1 and hemidesmin-2 (estimated 0.5–1.5% w/w in dried root), which contribute to anti-inflammatory and antioxidant activity. 2-Hydroxy-4-methoxybenzaldehyde (HMBA) – the principal aromatic compound responsible for its characteristic fragrance, present at approximately 0.3–0.8% in root bark, with demonstrated hepatoprotective and free-radical scavenging properties. Saponins – including hemidesminine and indicine (triterpene saponins), approximately 1–3% in dried root, contributing to detoxification and immunomodulatory effects. Phytosterols – β-sitosterol and lupeol (~0.2–0.6%), which support anti-inflammatory and cholesterol-modulating activity. Tannins – approximately 3–5% (condensed and hydrolyzable types), providing astringent and antimicrobial properties. Flavonoids – including rutin and quercetin derivatives (~0.1–0.4%), contributing to antioxidant capacity. Essential oils – trace volatile compounds including methyl salicylate. Minerals (per 100 g dried root, approximate): calcium 180–250 mg, iron 8–15 mg, magnesium 60–90 mg, potassium 200–350 mg, zinc 2–4 mg. Vitamins: modest amounts of vitamin C (~5–10 mg/100 g fresh root) and traces of B-complex vitamins. Fiber content: approximately 15–25 g per 100 g dried root (largely insoluble). Protein: ~4–7 g per 100 g dried root. Bioavailability notes: HMBA and coumarins are relatively lipophilic and show moderate oral bioavailability; traditional preparation in milk or oil-based formulations (as in Ayurvedic practice) enhances absorption. Saponins may have limited direct absorption but exert local gastrointestinal effects and can enhance the bioavailability of co-administered compounds. Tannin content may reduce iron and protein absorption if consumed concurrently with meals.