Suo Yang (Cynomorium songaricum) (Cynomorium songaricum)

Suo Yang (Cynomorium songaricum) is a parasitic desert plant used in Traditional Chinese Medicine, valued primarily for its bioactive compounds rather than macronutrient content. Key constituents include: **Bioactive Compounds:** Cynomoriin (a major anthocyanin glycoside, ~0.5–2.0% dry weight); gallic acid (~0.3–1.2%); protocatechuic acid; epicatechin (~0.1–0.5%); catechin; ursolic acid (~0.2–0.8%); oleanolic acid; β-sitosterol (~0.05–0.3%); daucosterol; flavan-3-ol derivatives and condensed tannins (proanthocyanidins, ~5–15% dry weight); triterpenoid saponins (~1–3%); phlorizin and related dihydrochalcones (trace amounts). **Polysaccharides:** Water-soluble polysaccharides (~8–15% dry weight), primarily composed of galactose, mannose, glucose, and arabinose units; these exhibit immunomodulatory and antioxidant activity; bioavailability is moderate and enhanced through gut microbiota fermentation. **Minerals:** Zinc (~25–50 mg/kg dry weight), iron (~80–200 mg/kg), calcium (~3,000–6,000 mg/kg), magnesium (~1,500–3,000 mg/kg), manganese (~15–40 mg/kg), selenium (trace, ~0.05–0.2 mg/kg). **Amino Acids:** Contains 15+ amino acids including proline, glutamic acid, aspartic acid, and arginine; total free amino acid content ~2–5% dry weight. **Vitamins:** Modest amounts of vitamin C (~10–30 mg/100g fresh weight), B-vitamins (trace levels of B1, B2, niacin). **Macronutrients (per 100g dry weight, approximate):** Crude protein ~5–10%, crude fiber ~10–18%, total sugars ~15–25%, crude fat ~1–3%. **Volatile Compounds:** Palmitic acid, linoleic acid, and oleic acid identified in lipid fraction. **Bioavailability Notes:** Phenolic compounds (gallic acid, catechin) have moderate oral bioavailability (~10–30%) improved with dietary fats; triterpenoids (ursolic acid, oleanolic acid) have low oral bioavailability (~5–10%) due to poor water solubility but may be enhanced via lipid-based formulations; polysaccharides are not directly absorbed but are fermented by colonic microbiota to produce short-chain fatty acids; cynomoriin and anthocyanin glycosides undergo partial hydrolysis in the GI tract, releasing active aglycones with variable absorption (~5–15%); phytosterols (β-sitosterol) have inherently low absorption (~5–10%), competing with cholesterol uptake pathways.