ABSTRACT
A new pyrrolidine alkaloid named Punigratane was isolated from the rind of Punica granatum. This is the first report of a pyrrolidine-like structure from the rind. The activity of this compound was tested in a representative MDR Klebsiella pneumoniae strain which exhibited high efflux pump activity. At a concentration of 6 mg, this compound Punigratane was found to have efflux inhibition activity.
ABSTRACT
A fructo-oligosaccharide was isolated from Chlorophytum borivilianum and identified as O-beta-D-fructofuranosyl-(2-->1)-(beta-D-fructofuranosyl) (n)-(2-->1)-alpha-D-glucopyranoside (n = 5 - 30) using high-pressure anion exchange chromatography, MALDI-MS, NMR, GC, HPTLC and chemical analysis. The extract and the fructo-oligosaccharide were found to have significant antidiabetic activity with the blood sugar levels being 118.32 +/- 3.56 and 110.21 +/- 4.22, respectively, as compared to the control value of 231.25 +/- 3.03 along with moderate antioxidant activity in streptozotocin-induced diabetic animals.
Subject(s)
Asparagaceae/chemistry , Diabetes Mellitus, Experimental/drug therapy , Hypoglycemic Agents/pharmacology , Oxidative Stress/drug effects , Phytotherapy , Animals , Blood Glucose/drug effects , Diabetes Mellitus, Experimental/chemically induced , Disease Models, Animal , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/therapeutic use , Male , Oligosaccharides/administration & dosage , Oligosaccharides/pharmacology , Oligosaccharides/therapeutic use , Plant Extracts/administration & dosage , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Plants, Medicinal , Rats , Rats, Sprague-Dawley , StreptozocinABSTRACT
Chlorophytum tuberosum Baker commonly referred as 'Musli' has been widely used as a potent 'Rasayana' drug in 'Ayurveda' as a rejuvenator and tonic. Antioxidant potential of Chlorophytum tuberosum has been investigated for their ability to scavenge 1,1,diphenyl picryl hydrazyl (DPPH), nitric oxide radical along with their capacity to reduce lipid peroxidation in rat liver homogenate, chelation of ferrous ion, radical scavenging potential using chemiluminescence and their total antioxidant capacity. Sugar, starch, protein, and Vitamin C content were estimated spectrophotometrically along with the percentages of the individual amino acids by HPLC and individual sugars by using HPTLC as standardization tool. The extract has been found to possess antioxidant activity in all the models tested as evident by IC50 values being 225.31, 888.44, 809.22 and 422.97 microg/ml for scavenging of DPPH, nitric oxide, lipid peroxidation and ferry bi-pyridyl complex, respectively, along with a integral anitoxidant activity of 2.986 nmol ascorbic acid/g equivalents in photochemiluminescence assay.
