@article {983, title = {The Diversity of Biologically Active Compounds in the Rhizomes of Recently Discovered Zingiberaceae Plants Native to North Eastern Thailand}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {September 2019}, pages = {1014-1022}, type = {Original Article}, chapter = {1014}, abstract = {

Objective: To identify and quantify the bioactive compounds, along with biological activities, of native Thai edible Zingiberaceae. Methods: The bioactive compounds evaluated were phenolic acids, flavonoid, vitamin C, curcumin, 6-gingerol, eugenol and essential amino acids; analyses involved HPLC and LCMS/MS. Antioxidant activities were assessed by DPPH and FRAP assays. Results: Zingiber officinale was the richest source of bioactive compounds, followed by Z. officinale, Alpinia zerumbet and Alpinia conchigera. Total phenolic content and total flavonoid contents ranged widely across these species (17 to 200 mg GAE/100 g DW and 17 to 66 mg RE/100 g DW). All the species studied possessed strong antiglycation properties, ranging from 82 to 98\%, with strong positive correlations of total phenolic content and antioxidant activity. The contents of curcumin, 6-gingerol, eugenol and vitamin C were in the range of 1 to 26, 1 to 140 μg/ g DW, 5 to 1600 and 4 to 21 mg/100 g DW, respectively. Seven essential amino acids identified by using LCMS/MS were found in most samples studied ranging from 2 to 6752 μg/100 g DW. Conclusion: Z. officinale is an abundant source of bioactive compounds and antioxidant activity in all these samples. These plants are fresh sources for developing novel functional ingredients in either food or cosmetics.

}, keywords = {Antiglycation, Antioxidants, Bioactive compounds, Essential amino acids, Ginger family}, doi = {10.5530/pj.2019.11.160}, author = {Theeraphan Chumroenphat and Issaraporn Somboonwatthanakul and Surapon Saensouk and Sirithon Siriamornpun} } @article {45, title = {In vitro study of anti-glycation and radical scavenging activities of the essential oils of three plants from Morocco: Origanum compactum, Rosmarinus officinalis and Pelargonium asperum}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {Mar-Apr 2015}, pages = {124-135}, type = {Original Article}, chapter = {124}, abstract = {

Introduction: We have carried out our study on the chemical composition; anti-glycation andradical scavenging activities of Origanum compactum, Rosmarinus officinalis and Pelargonium asperum essential oils (EO) that were harvested in the northeast of Morocco. These plants have been traditionally used in medicine as a chief ingredient of many polyherbal formulations for the treatment of several pathologies. Method: The phytochemical study was revealed by GC-MS. The protein glycation inhibitory activity of EO extracted from these plant tissues was evaluated in vitro using the model system of bovine serum albumin and methylglyoxal. The measure of DPPH\• radical reducing power was used to evaluate the antiradical activity. To test each fraction, we used the IC50 value previously obtained for the crude oils. Results: The phytochemical study of these essential oils showed that p-Thymol, Eucalyptol and Citronellal were respectively the major components in the three investigated EO of O.compactum, R. officinal is and P. asperum. More than 90\% of the total components were detected. The extracts and fractions with glycation inhibitory activity also showed antiradical activity when the DPPH\• radical reducing power was measured. Conclusion: The glycation inhibitory activity was correlated with the antiradical potency of the extracts. Thus, the positive glycation inhibitory and antiradical activities of these plants might suggest a possible role in targeting aging and diabetic complications.The presence of various bioactive compounds confirms the application of these plants for various diseases by traditional practitioners. However, isolation of individual phytochemical constituents may proceed to find a novel drug.

}, keywords = {Aging, Antiglycation, Antioxidant, Diabetes, Essential oil, Radical scavenger}, doi = {10.5530/pj.2015.2.7}, author = {Ramdan Btissam and Amakran Amina and NHIRI Mohamed}, editor = {Ramdan Rajae} } @article {1445, title = {In vitro study of anti-glycation and radical scavenging activities of the essential oils of three plants from Morocco: Origanum compactum, Rosmarinus officinalis and Pelargonium asperum}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {8th Jan, 2015}, pages = {124-135}, type = {Original Article}, chapter = {124}, abstract = {

Introduction: We have carried out our study on the chemical composition; anti-glycation andradical scavenging activities of Origanum compactum, Rosmarinus officinalis and Pelargonium asperum essential oils (EO) that were harvested in the northeast of Morocco. These plants have been traditionally used in medicine as a chief ingredient of many polyherbal formulations for the treatment of several pathologies. Method: The phytochemical study was revealed by GC-MS. The protein glycation inhibitory activity of EO extracted from these plant tissues was evaluated in vitro using the model system of bovine serum albumin and methylglyoxal. The measure of DPPH\• radical reducing power was used to evaluate the antiradical activity. To test each fraction, we used the IC50 value previously obtained for the crude oils. Results: The phytochemical study of these essential oils showed that p-Thymol, Eucalyptol and Citronellal were respectively the major components in the three investigated EO of O.compactum, R. officinal is and P. asperum. More than 90\% of the total components were detected. The extracts and fractions with glycation inhibitory activity also showed antiradical activity when the DPPH\• radical reducing power was measured. Conclusion: The glycation inhibitory activity was correlated with the antiradical potency of the extracts. Thus, the positive glycation inhibitory and antiradical activities of these plants might suggest a possible role in targeting aging and diabetic complications.The presence of various bioactive compounds confirms the application of these plants for various diseases by traditional practitioners. However, isolation of individual phytochemical constituents may proceed to find a novel drug.

Key words: Aging, Antioxidant, Antiglycation, Diabetes, Essential oil, Radical scavenger.

}, keywords = {Aging, Antiglycation, Antioxidant, Diabetes, Essential oil, radical scavenger.}, author = {Ramdan Btissam and Ramdan Raja and Amakran Amina and Vannier Brigitte and NHIRI Mohamed} }