Table 2 in Ex-situ cultivation at lower altitude and evaluation of Swertia chirayita, a critically endangered medicinal plant of Sikkim Himalayan region, India

Table 2 Analysis of Swertia chirayita mature plant cultivated at an altitude of niche environment (niche environment cultivated) and one-year-old ex-situ cultivated plant at the lower altitude (ex-situ cultivated) as per Ayurvedic Pharmacopoeia of India (API) norms.
S. no.ParametersAPI specificationsStem of niche environment cultivatedLeavesNiche environment cultivatedEx-situ cultivated1Macroscopic descriptionThe drug consists of whole plant, glabrous, yellowish-brown stem with easily separable yellow pith, leaf, ovate or lanceolate, entire, acuminate, glabrous.Stem up to 1 m long and 6 mm in diameter, glabrous, yellowish-brown to purplish, slightly quadrangular above and cylindrical below, large, continuous, easily separable yellow pith.Leaf, opposite, cauline, broad at base, ovate or lanceolate, entire, acuminate, glabrous.2Foreign matter (%w/w)Not>2.0NilNilNil3Total ash (% w/w)Not>6.02.86 ± 0.345.37 ± 0.145.55 ± 0.074Acid insoluble ash (%w/w)Not>1.00.39 ± 0.130.78 ± 0.030.68 ± 0.055Alcohol (60% v/v) soluble extractive (%w/w)Not <10.06.27 ± 0.6215.28 ± 3.2916.84 ± 0.086Water soluble extractive (% w/w)Not <10.07.82 ± 1.3415.96 ± 1.4522.44 ± 0.407Total bitter content (%w/w)Not <1.302.15 ± 0.423.95 ± 0.174.57 ± 0.008Swertiamarin content (% w/w)–0.002 ± 0.000.22 ± 0.020.27 ± 0.007