@article {347, title = {Simultaneous-HPLC Quantification of Phenolic Acids in Traditionally used Ayurvedic Herb Diplocyclos palmatus (L.) Jeffry}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {May 2017}, pages = {483-487}, chapter = {483}, abstract = {

Introduction:The present study deals with the simultaneous HPLC-quantification of phenolic acid(s) in the aerial parts of Diplocyclos palmatus (Cucurbitaceae) and evaluation of their bioactivity potential through in vitro antioxidant assay\’s. Method: The HPLC elution was done using C18 column using gradient (binary phases) solvent system at a flow rate of 0.6 ml/min. Total phenolic and, flavonoid contents were determined and the antioxidant potential was estimated by four assay\’s viz. DPPH radical scavenging assay, ferric reducing power assay, total antioxidant capacity and 2-deoxy ribose assay. Results: The species is rich in three phenolic acids, among which gallic acid (1708 ug/g) is in maximum concentration followed by caeffic acid (437 ug/g) and protocateuchic acid (337.7 ug/g). Total phenolic content was higher (10.5 mg/g) than flavonoid content (3.78 mg/g) and TAC was found at 0.137 mg/g ASE (ascorbic acid equivalent). IC50 of D. palmatus extract for scavenging of hydroxyl radical by 2-deoxy ribose and DPPH was at concentration of 125.61 \± 0.834 (\μg/ml) and 353.71 \± 0.663 (\μg/ml) respectively. In vitro antidiabetiv potential, via inhibition of alpha amylase enzyme through starch iodine and 3,5- DNS assay reveals the IC50 of extract at 146.31 \± 0.415 ug/ml and 286.23 \± 0.671 ug/ ml respectively. Conclusion:\ The species (aerial part) was rich in phenolic acid with potential bioactivity, identified leads will be useful\ in further chemical characterization and pharmacological validation.

}, keywords = {Anti diabetic, Anti oxidant, Diplocyclos palmatus, HPLC, Phenolic acid}, doi = {10.5530/pj.2017.4.78}, url = {/files/PJ-9-4/10.5530pj.2017.4.78}, author = {Ankita Misra and Pushpendra Kumar Shukla and Bhanu Kumar and Abhishek Niranjan and AKS Rawat and Sharad Srivastava} }