8 In the current study, high performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (UPLC–QTOFMS) has been used for non-targeted analysis of phytochemical profile modification during refrigerated storage of untreated stem juice of T. cordifolia. T. cordifolia (W) Mier (Menispermaceae), is referred to as “nectar of immortality” and “heavenly elixir” and a well
known plant for its Ruxolitinib traditional medicinal properties. The importance of the plant can be understood by its very wide use and coverage in Indian news papers during the Swine breakthrough in the India. This shrub is well reported for its immuno-modulator and adaptogenic properties. 9, 10 and 11 It is a popular ingredient in many formulations in various forms such as juice, paste, prepared starches, powders and decoctions which are used as anti-oxidant, 12 anti-cancer, 13 anti-inflammatory, GW786034 chemical structure 14 anti-diabetic 15 and special decoctions in gouts and rejuvenating tonic. 16 It is the main drug of choice for hepatic aliments.
17 Syringin and cordiol inhibited the in vitro immunohaemolysis due to inhibition of the C3-convertase of the classical complement pathway. Humoral and cell-mediated immunity were also dose-dependently enhanced. Macrophage activation was reported for cordioside, cordiofolioside A and cordiol. A very few studies have reported the impact of refrigeration and time on the juices of medicinal plants on the degradation of bioactive compounds. In present study, UPLC–QTOFMS data of T. cordifolia juice unless was analysed by commercially available software packages to obtain PCA and PLS-DA at different time intervals. Stems of same diameter of four year old T. cordifolia Miers (protected from the use of any type of pesticides) were
collected from Medicinal Plant Garden of NRIBAS, Pune. The samples collected during rainy season were authenticated by Dr GB Rao and preserved as Voucher No. 296 in herbarium. Standard compounds lidocaine, D-camphor, 5, 7-isoflavone and berberine were purchased from MP Biomedicals (each of purity ≥99%). Acetonitrile, formic acid and water of LCMS grade were purchased from Sigma–Aldrich. Stems of T. cordifolia were washed with deionized water. The juice of 15 g stem sample was extracted with 15 ml deionized water (Direct-Q, Millipore) at 25 °C and centrifuged at 15,000 g for 10 min at 4 °C temperature to remove debris. Equal volumes of juice and ethanol were mixed and kept in −80 °C for 5 h to ensure complete protein precipitation and centrifuged at 15,000g for 10 min at 4 °C temperature to remove protein precipitates. Lidocaine (234.3m/z) and 5, 7-isoflavone (284.3 m/z) were infused with samples as standard markers. The juice samples were stored at 4 °C till further use. The chromatographic separation of T. cordifolia stem juice was carried out using Zorbax Eclipse Plus reversed phase C18 column (250 mm × 2.