Sanshishi (Gardenia jasminoides) (Gardenia jasminoides)

Sanshishi (Gardenia jasminoides fruit) is not consumed as a food for macronutrient value but rather as a medicinal herb; therefore, standard macronutrient data (protein, fat, carbohydrate, fiber per serving) are not typically reported in nutritional databases. Its significance lies in its bioactive phytochemical profile: **Iridoid glycosides (primary active class, ~5–8% of dried fruit by weight):** • Geniposide – the dominant iridoid, reported at approximately 30–80 mg/g of dried fruit depending on cultivar, harvest time, and extraction method; considered the principal bioactive marker compound in Chinese Pharmacopoeia (≥1.8% by HPLC required for quality standard) • Genipin – the aglycone of geniposide, formed by enzymatic hydrolysis in the gut; exhibits higher membrane permeability than geniposide and is considered a key active metabolite • Gardenoside (also called shanzhiside) – typically 5–20 mg/g dried fruit • Scandoside, deacetyl-asperulosidic acid, and other minor iridoids present at lower concentrations **Carotenoid-derived pigments (crocins and related compounds, ~1–3% of dried fruit):** • Crocin-1 (crocetin di-gentiobiosyl ester) – the major water-soluble yellow pigment, approximately 5–25 mg/g dried fruit; this is the same pigment class found in saffron (Crocus sativus) • Crocin-2, crocin-3, and crocetin (the aglycone) present in smaller quantities • These crocins contribute to the fruit's traditional use as a natural food colorant and possess notable antioxidant activity (ORAC values comparable to or exceeding many common dietary antioxidants in vitro) **Phenolic acids and flavonoids (~0.5–2%):** • Chlorogenic acid – approximately 2–10 mg/g dried fruit • 3,5-di-O-caffeoylquinic acid and other caffeoylquinic acid derivatives • Rutin and quercetin glycosides in minor amounts • Protocatechuic acid, vanillic acid, and ferulic acid detected at trace to low mg/g levels **Organic acids:** • Ursolic acid and oleanolic acid (triterpenoid acids) – reported at approximately 1–5 mg/g • Geniposidic acid **Essential oil components (trace, <0.5%):** • Linalool, α-terpineol, and other monoterpene alcohols contributing to aroma **Minerals (approximate, per dried fruit):** • Potassium, calcium, magnesium, iron, zinc, and manganese are present but typically at levels consistent with dried botanical materials (not a significant dietary source at typical medicinal doses of 3–12 g/day) **Vitamins:** • No significant vitamin content has been characterized at pharmacologically relevant levels; the crocins are sometimes loosely associated with provitamin A activity, but crocetin is an apocarotenoid without true vitamin A precursor function. **Bioavailability notes:** • Geniposide has moderate oral bioavailability (~20–30% in animal models) and is hydrolyzed by intestinal β-glucosidase to genipin, which is more readily absorbed and undergoes significant first-pass hepatic metabolism. • Crocins are hydrophilic and have relatively low oral bioavailability; they are partially hydrolyzed to crocetin in the GI tract, which is absorbed more efficiently (crocetin bioavailability estimated at 50–60% in animal studies). • Chlorogenic acid bioavailability is limited (~30% absorbed in the small intestine) with a significant fraction metabolized by colonic microbiota to caffeic acid and other metabolites. • Traditional decoction preparation (boiling in water for medicinal use) efficiently extracts the water-soluble iridoids and crocins but may partially degrade heat-sensitive compounds; co-administration with lipids does not significantly enhance crocin absorption due to their hydrophilic nature.