@article {928, title = {Determination of Specific and Non-Specific Parameters of Simplicia and Ethanolic 70\% Extract of Gadung Tubers (Dioscorea hispida)}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {July 2019}, pages = {759-763}, type = {Original Research Study}, chapter = {759}, abstract = {

Background: D. hispida can be used as a painkiller, rheumatic drugs and antioxidant. Based on its medicinal properties, D. hispida can be used as a traditional medicine that must be guaranteed on quality, safety and benefit. Therefore, standardization is needed. This aim of this study was to obtain some specific and non-specific parameter of simplicia and ethanolic 70\% extract of D. hispida tubers from three different regions. Materials and Methods: The samples were macerated by using ethanol 70\%. Results: The results showed that the specific parameters of D. hispida simplicia; the total water soluble extract was 11.25-16.20\%; the total ethanol soluble extract was 6.42-9.39\%; the chromatogram profile was obtained by using thin layer chromatography in toluene-ethyl acetate-chloroform (5:1:4) mobile phase with β{\textendash}sitosterol as standard, the total phenolic content was 2.15{\textendash}2.50 expressed in mgGAE/g simplicia. The non-specific parameters of D. hispida simplicia; the total loss on drying was 10.53-12.40\%; the total ash content was 5.81-5.94\%; the total acid insoluble ash content was 0.20-0.22\%. The specific parameters of D. hispida extract; the total phenolic content was 10.30-11.72 expressed in mgGAE/g extract. The non-specific parameters of D. hispida extract; the total water content was 10.27-10.47\%; the total ash content was 2.84-2.93\%; the total acid insoluble ash content was 0.14-0.19. Conclusion: conform the parameters.

}, keywords = {D. hispida, Gadung, Non-specific parameter, Specific parameter, standardization}, doi = {10.5530/pj.2019.11.120}, author = {Sasmita Retno Sari and Berna Elya and Katrin} } @article {260, title = {ACE Inhibitory Activity, Total Phenolic and Flavonoid Content of Watercress (Nasturtium officinale R. Br.) Extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {249-251}, type = {Original Article}, chapter = {249}, abstract = {

Introduction: Hypertension is the main risk factor for cardiovascular disease. There are many developed antihypertension drugs, one of them is focusing in ACE (Angiotensin Converting Enzyme) inhibition activity. ACE inhibition activity known can decrease vasoconstriction effect and also can decrease bradykinin degradation (vasodilator) by creating NO (nitric oxide). Methods: In this study, we conducted an in vitro ACE inhibition activity test which was obtained from watercress on 70\% ethanolic extract and each fraction (n-hexane, ethyl acetate, and n-butanol). Results: Results of the study showed that ethanolic extract of watercress had ACE activity with IC50 value was 19.05 g/mL and the highest IC50 of each fraction is ethyl acetate with IC50 value was 2,303 g/ mL. n-butanol fraction had the highest total phenolic content with 15.798 mg GAE/g of the extract, while the highest total flavonoid content was obtained on ethyl acetate fraction with 82.847 mg QE/g of the extract. Conclusion: The results suggest that Watercress (Nasturtium officinale R. Br.) possess ACE inhibitory activity.

}, keywords = {ACE inhibitor, Flavonoid, phenolic, Watercress (Nasturtium officinale R. Br.)}, doi = {10.5530/pj.2017.2.42}, url = {http://phcogj.com/fulltext/309}, author = {Catty Amalia Yaricsha and Rissyelly and Katrin} } @article {267, title = {ACE Inhibitory Activity, Total Phenolic and Flavonoid Content of Pereskia saccharose Griseb. Leaves Extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {285-287}, type = {Original Article}, chapter = {285}, abstract = {

Introduction: Angiotensin-converting enzyme inhibitors (ACEi) are drugs that can control hypertension. Pereskia saccharose Griseb. leaves have been used traditionally as antihypertensive. Objective: The objective of this study was to determine the antihypertensive activity through inhibition of ACE activity, the total phenolic content and total flavonoid content of the ethanolic extract of Pereskia saccharose Griseb. leaves and its fractions. Methods: Extraction was done by maceration with 80\% ethanol and fractionation performed by liquid-liquid partition. Results: In vitro ACE inhibitory activity assay of the ethanolic extract using ACE Kit-WST Dojindo had IC50 value of 3.448 \μg/mL and ethyl acetate fraction had IC50 value of 1.714 x 10-3 \μg/mL. Ethyl acetate contained the highest amounts of both TPC (72.991 \± 0.932 mg GAE/g sample) and TFC (61.337 \± 1.612 mg QE/g sample). Conclusion: The results suggest that Pereskia saccharose Griseb. possess ACE inhibitory activity.

}, keywords = {ACE inhibitor, Flavonoid, Pereskia saccharose Griseb, phenolic}, doi = {10.5530/pj.2017.2.49}, url = {http://phcogj.com/fulltext/316}, author = {Sarlina Jihan Lusiyanti and Katrin and Rissyelly and Nuraini Puspitasari and Putu Gita Maya Widyaswari Mahayasih} } @article {262, title = {Antioxidant Activity and Lipoxygenase Enzyme Inhibition Assay with Total Flavonoid Assay of Garcinia porrecta Laness. Stem Bark Extracts}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {257-266}, type = {Original Article}, chapter = {257}, abstract = {

Introduction: The genus Garcinia which is rich of secondary metabolites, mainly flavonoids, have known to have antioxidant and anti-inflammatory activity through the inhibition of lipoxygenase. There isn\’t found literature indicating research on inhibition of lipoxygenase activity been done in this plant. The purpose of this study is to obtain the data and determine the potential antioxidant activity, and inhibition of lipoxygenase activity of Garcinia porrecta Laness. stem bark extracts. Methods: This research is included FRAP (Ferric Reducing Antioxidant Power) method antioxidant assay, in vitro lipoxygenase inhibition assay, flavonoids qualitative analysis by thin layer chromatography, and total flavonoids assay in the most active extract. Results: The results showed the methanol, ethyl acetate and n-hexane extracts of G. porrecta Laness. stem bark using FRAP method, has antioxidant activity with EC50 values respectively 1.33; 4.97; and 19.96 g/mL and lipoxygenase inhibition activity with IC50 values 0.23; 0.52; and 4.87 g/mL. The most active extract in the both assay is methanol extract which has total flavonoids of 5.66 mg QE/g (quercetin equivalent). Conclusion: The results from the study show extracts of the stem bark of G. porrecta Laness. has antioxidant activity and potential for lipoxygenase inhibition.

}, keywords = {Antioxidant, Flavonoid, FRAP, Garcinia porrecta Laness, Lipoxygenase}, doi = {10.5530/pj.2017.2.44}, url = {http://phcogj.com/fulltext/311}, author = {Amalia Cipta Sari and Berna Elya and Katrin} } @article {263, title = {Antioxidant Activity and Lipoxygenase Enzyme Inhibition Assay with Total Flavonoid Content from Garcinia hombroniana Pierre Leaves}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {267-272}, type = {Original Article}, chapter = {267}, abstract = {

Objective: Garcinia hombroniana Pierre leaves extract have been known to contain flavonoid, but it has not been known yet for its antioxidant activity and inhibition of lipoxygenase activity. This study aims to determine antioxidant activity and inhibition of lipoxygenase activity of G. hombroniana leaves extract. Method: Antioxidant activity tested by using FRAP (Ferric Reducing Antioxidant Power) method and inhibition of lipoxygenase activity using baicalein as the positive control. Total flavonoid assay is also quantitatively done by AlCl3 colorimetric method on the most active extract using quercetin as the positive control. Results: The test result showed that the n-hexane, ethyl acetate and methanol extract of G. hombroniana Pierre leaves have antioxidant activity which showed by EC50 value consecutively are 36.260; 2.969; and 7.416 \μg/mL, and also can inhibit lipoxygenase activity which showed by IC50 value consecutively are 2.052; 0.134; and 1.314 \μg/mL. Ethyl acetate extract of G. hombroniana Pierre leaves has the most active antioxidant activity and inhibition of lipoxygenase activity. Total flavonoid content of ethyl acetate extract of G. hombroniana Pierre leaves is 42.004 mg QE/g sample. Conclusion: Garcinia hombroniana Pierre leaves extract has antioxidant activity and can inhibit lipoxygenase activity.

}, keywords = {Antiinflammation, Antioxidant, Flavonoid, FRAP, Garcinia hombroniana Pierre, Lipoxygenase}, doi = {10.5530/pj.2017.2.45}, url = {http://phcogj.com/fulltext/312}, author = {Shinta Marlin and Berna Elya and Katrin} } @article {258, title = {Effect of Gamma Irradiation on Suruhan (Peperomia pellucida (L.) Kunth) Herb Powder}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {239-243}, type = {Original Article}, chapter = {239}, abstract = {

Introduction: Peperomia pellucida (L.) Kunth is known as a raw material for herbal medicine; Preservation of herbs powder by gamma irradiation is reported to be able to keep products free from contamination. Methods: This study aims to evaluate the effect of gamma irradiation (0; 2.5; 5; 7.5; and 10 kGy) on the ACE inhibitory activity (ACE Kit \– WST test kit method), antioxidant activity (DPPH radical scavenging method), total phenolic content (colorimetric method using Folin-Ciocalteu reagent), total flavonoid content (colorimetric method using AlCl3 and sodium acetate), and TLC profiling (silica gel F254 as the stationary phase and dichlormethane:methanol [92:8] as the mobile phase) of suruhan herb powder. Results: Results showed that the 2.5 kGy irradiation dose gave the smallest alteration in ACE inhibitory activity compared to others irradiated doses. Furthermore, the 5 and 7.5 kGy dose didn\’t cause significant change (p\>0.05) on antioxidant activity, total phenolic content, and total flavonoid content. Antioxidant activity was found to correlate with the total phenolic content but not with the total flavonoid content. Conclusion: Based on these finding, it is concluded that gamma irradiation can be used as a preservation method for P. pellucida herb powder.

}, keywords = {Angiotensin converting enzyme, antioxidant activity, Peperomia pellucida, total flavonoid, total phenolic}, doi = {10.5530/pj.2017.2.40}, url = {http://phcogj.com/fulltext/307}, author = {Mubarika Sekarsari Yusuf and Intan Wulandari and Lili Amelia and Katrin and Arikadia Noviani and Rissyelly and Abdul Mun{\textquoteright}im} } @article {261, title = {Inhibition Activity of Angiotensin Converting Enzyme (ACE) and Determination of Total Phenolic and Flavonoid Compound from Bitter Melon Leaves (Momordica charantia L.)}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {252-256}, type = {Original Article}, chapter = {252}, abstract = {

Introduction: Hypertension is a leading problem in Indonesia, because of the high prevalence and the long term effect. Bitter melon leaves (Momordica charantia L.) has been traditionally utilized to treat hypertension, yet not many studies explained the antihypertension effect of this plant. Methods: This study was conducted to test the benefit of bitter melon leaves as antihypertension using angiotensin converting enzyme inhibition activity in 80\% ethanolic extract and its fractions (n-hexane, ethyl acetate, and n-butanol) using ACE kit-WST (Dojindo, Japan). Then the antihypertension activity was associated with the phenolic content which was expressed in gallic acid equivalent (GAE) and total flavonoid in quercetin equivalent (QE). Results: Result of the study showed that the IC50 value obtained from the ethanolic extract to inhibit ACE activity was 7.52 \μg/mL and the highest inhibition obtained in ethyl acetate fraction with IC50 value was 4,29 \μg/mL. Phenolic total and flavonoid total determination also showed that the highest content obtained in ethyl acetate fraction with 18.752 mg GAE/gr extract and 8.310 mg QE/gr extract, respectively. Conclusion: According to the study, it could be concluded that bitter melon (Momordica charantia L.) leaves provide inhibition activity against Angiotensin Converting Enzyme (ACE) and chemical compounds that were expected to play an active role in inhibiting ACE were flavonoid and tannin.

}, keywords = {Angiotensin converting enzyme, antihypertension, Momordica charantia L., total flavonoid., total phenolic}, doi = {10.5530/pj.2017.2.43}, url = {http://phcogj.com/fulltext/310}, author = {Putri Lestari and Katrin and Rissyelly and Putu Gita Maya Widyaswari Mahayasih} }