@article {842, title = {Xanthones Analysis and Antioxidant Activity Analysis (Applying ESR) of Six Different Maturity Levels of Mangosteen Rind Extract (Garcinia mangostana Linn.)}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {March 2019}, pages = {369-373}, type = {Original Article}, chapter = {369}, abstract = {

Background: Mangosteen (Garcinia mangostana Linn.) is tropical fruit that known to contain bioactive compounds which has particular function as antioxidants, anti-inflammatory and antibacterial. Mangosteen rind extract is known to have high contents of xanthone compounds which have antioxidant and free radical scavenging activities. This study was aiming to determine the contents of xanthone derivatives using Liquid Chromatography Mass Spectrometry (LC-MS/MS) and antioxidant activity of six different maturity levels of mangosteen rind extract using electron spin resonance (ESR). Method: Mangosteen was classified based on the maturity level by its visual characteristic and divided into six criteria of maturity. The mangosteen rinds were extracted through maceration and freeze drying method. Qualitative analysis of xanthone was obtained using LC-MS/MS. Antioxidant activity was determined using ESR spectrometer. To evaluate antioxidant activity, using 2,2-diphenyl-1-picrylhydrazyl (DPPH) was used as free radical scavenger method. Results: The LC-MS/MS analysis showed that the highest concentrations are filled by mangosteen rind with maturity level 6. Moreover, each maturity levels of mangosteen rind extract has different g value compared to DPPH free radical. Different g value indicated the different type of free radical and decreasing g value indicated the declining intensity of free radical. The higher decreasing of g value was mangosteen rind with maturity level 4, 5 and 6. Conclusion: Mangosteen rind extract contains xanthone and its derivatives and ESR analysis showed that different maturity levels on mangosteen rind has different antioxidant activity as indicated by declining free radical intensity.

}, keywords = {Antioxidant, Electron spin resonance (ESR), Free radical, Mangosteen rind extract, Xanthone Garcinia mangostana}, doi = {10.5530/pj.2019.11.56}, author = {Marisca Evalina Gondokesumo and Bambang Pardjianto and Sutiman Bambang Sumitro and Wahyu Widowati} } @article {729, title = {Network Analysis of Indigenous Indonesia Medical Plants for Treating Tuberculosis}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {1159-1164}, type = {Original Article}, chapter = {1159}, abstract = {

Background: Indonesia is the biggest archipelago country with the second biggest biodiversity in the world. A lot of medical plants for treating various diseases can be found in Indonesia, including medical plants for tuberculosis, an infectious disease caused by Mycobacterium tuberculosis. Objective: The goal of this research is to document the information of Indonesia indigenous medical plants that used various local societies to treat tuberculosis and also analyze active compounds of medical plants with proteins that related to tuberculosis. Methods and Material: The annotation of medical plants for treating tuberculosis was collected from a various source comprising local research papers, theses, and other resources. The information of active compound was taken from Dr. Duke\’s Phytochemical and Ethnobotanical Databases. A network of active compounds-proteins was analyzed by using Cytoscape 3.6.0. Results: The result described that there were twenty-seven species from nineteen families of medical plants used by local societies of Indonesia for tuberculosis therapy, and there were sundry of active compounds from fourteen medical plants had direct interaction with proteins related tuberculosis. Conclusions: Most of the active compounds targeted proteins that had a prominent role in immune system. It indicated that medical plants treating tuberculosis through regulating immunity of human body.

}, keywords = {Cytoscape, Immune system, Indonesia medical plants, Network, Tuberculosis}, doi = {xx10.5530/pj.2018.6.198}, author = {Sherry Aristyani and Sri Widyarti and Sutiman Bambang Sumitro} }