The objective of this study was to characterise the putative phytochemical constituents from petroleum ether (CC-P) and chloroform (CC-C) extracts of Curcuma. caesia rhizome by GC-MS analysis and to compare their bioactivities. GC-MS analysis facilitated the documentation of a total of 16 and 20 volatile constituents in CC-P and CC-C extracts respectively. Of these the major constituents present in CC-P were cycloisolongifolence, 8, 9-dehydro-9 formyl- (19.64%), 4-oxo- β-isodamascol (16.05%), 6,10-dimethyl-3- (1-methylethyl) -6-cyclodecene-1,4-dione (13.80%), 2H-cyclohepta[b]furan-2-one,6-[1-(acetyloxy) -3-oxobutyl]- 3,3a,4,7,8,8a- hexahydro-7-methyl- 3-methylene- (9.08%), tricycle [5.1.0.0(2,4)] oct-5-ene-5-propanoic acid,3,3,8.8-tetramethyl- (6.39%), 2(3H)-benzofuranone,6-ethenylhexahydro-3,6-dimethyl-7-(1- methyl ethenyl)-, [3S-(3α,3aα,6α,7β,7aβ) (4.18%) and 7a-isopropenyl-4,5-dimethy loctahydroindene-4-carboxylic acid (4.01%). Similarly, the major constituents present in CC-C were cycloisolongifolence,8,9- dehydro-9-formyl-(15.69%), 6,10-dimethyl-3-(1-methylethyl)-6-cyclodecene-1, 4-dione (13.38%), 2H-cyclohepta [b]furan-2-one,6-[1- (acetyloxy)-3-oxobutyl] -3,3a,4,7,8,8a- hexa hydro -7-methyl - 3-methylene- (4.55%), tricycle [5.1.0.0(2,4)] oct-5-ene-5- propanoic acid,3,3,8.8-tetramethyl- (7.50%), 2(3H)-benzofuranone, 6-ethenylhexahydro-3,6-dimethyl-7-(1-methylethenyl)-,[3S- (3α,3aα,6α,7β,7aβ) (6.15%), 7a-isopropenyl-4,5-dimethyl octahydroindene-4-carboxylic acid (6.43%) and 2-(4a,8- Dimethyl-6- oxo-1,2,3,4-4a,5,6,8a-octahydro-naphthalen-2-yl) propionaldehyde (6.57%). The extracts, CC-P and CC-C exhibited almost similar antibacterial and antifungal potentials but differed with respect to antioxidant activity. The IC50 values of CC-P and CC-C extracts for DPPH scavenging were 0.68±0.02 mg ml-1 and 0.13±0.01 mg ml-1 respectively. Together, above results provide an important basis for the isolation of bioactive compounds from C. caesia rhizome extract and their use as traditional medicine.
Bakground: Kaempferia parviflora (zingiberaceae family) rhizomes are used for various pharmacological applications. The present study is aimed for putative identification of phyto-constituents in the chloroform extract of the rhizome of Kaempferia parviflora and to correlate with bioactivities like antioxidant and anti-microbial/fungal activities. Methods: Rhizome extract was prepared using Soxhlet extractor and undergone the phytoconstituents analysis of it by gas chromatography-mass spectrometry (GC-MS). Results: Identified twenty-five compounds, out of which 4H-1-Benzopyran-4-0ne,5,7-dimethoxy-2-phenyl and Hydroxyurea showed the maximum and minimum relative abundance of 76.4% and 0.002% respectively. By agar well diffusion method, the extract (25 μg/ml) exhibited highest antibacterial potential against Micrococcus luteus (MTCC 106) (gram-positive bacteria) and anti-fungal potential against plant pathogen Rhizoctonia solani (MTCC 4633). The extract also showed the potent scavenging activities of 2,2-diphenyl-1-picryl-hydrazine (DPPH) and 2,2′-Azino-bis (3-Ethylbenzothiazoline-6-Sulfonic Acid) (ABTS) radicals with IC 50 values of 3.0 ± 0.1 mg/ml and 19.4 ± 1.2 µg/ml respectively. Subsequently, lipid peroxidation assay was also used for estimation of antioxidant activity of this extract. The extract (20 µg/ml) inhibited lipid peroxidation by 80.0 ± 4.5%. Conclusion: The outcomes of present study provide scope for isolation of bioactive compounds from Kaempferia parviflora for medicinal application.
Background: Curcuma caesia Roxb. is a zingiberaceae plant and their rhizomes have been used for various medicinal properties based on the presence of alkaloid, glycosides, essential oils and vitamin. But, the studies on medicinal properties of rhizomes of the plant in inorganic component are very limited. The trace elements and certain elements present in medicinal plants are important for safety of herbal drugs and also to help in establishing the structure in phytochemistry and chelating therapy. The present study emphasises to investigate the presence of nutrient and trace elements in the rhizome of the plant quantitatively, as deficiency or excessiveness leads to various health issues. Methods: Curcuma caesia rhizomes were collected from Thoubal District, Manipur, North-East India during the month of November-December, 2017. Rhizomes powder was investigated for the determination of various elements by instrumental techniques like, Flame atomic absorption spectroscopy (FAAS), Inductively coupled plasma mass spectrometer (ICP-MS), Scanning electron microscopy (SEM), Energy dispersive X-ray (EDX) and Carbon - Hydrogen - Nitrogen - Sulphur (CHNS). Result: After comparison of the various results given by FAAS, ICP-MS, SEM, EDX and CHNS Techniques, 17 elements consisting of both major and minor elements viz. C (7.705 wt.%), H (1.22wt.%), N (4.41 wt.%), O (36.97 at. %), Na (5.5 µg/mL), K (15.8 µg/mL), Mg (1.3 µg/mL), Fe (0.53 µg/mL), Ca (0.46 µg/mL), Co ( less than 2 ng/mL), V ( less than 2 ng/mL), Cr (6 ng/mL), Ni (30 ng/mL), As ( less than 5 ng/mL), Mn (82 ng/mL), Cu (42 ng/mL) and Pb (10 ng/mL) have been determined in Curcuma caesia rhizome (µg/mL means micro gram per millilitre while ng/mL means nano gram per millilitre). A comprehensive elemental analysis data Curcuma caesia rhizome of such kind is not yet reposted earlier. The study will be very helpful in further study of the medicinal values of the rhizome.
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