@article {1894, title = {Phytochemical Approach Including Total Phenolic and Flavonoid Contents and Evaluation of in vitro ABTS Antioxidant Capacity and Lipoxygenase Inhibition of Anisosciadium lanatum}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {January 2023}, pages = {928-932}, type = {Original Article }, chapter = {928}, abstract = {

Anisosciadium lanatum Boiss is commonly known in Bedouins as besbas. Traditional, it is palatable plant and used in medicine of livestock to treat skin conditions . The main objective of current approach was to screen the presence of different kind of metabolites applying standard procedures followed by assessment of total phenolic (TPC) and flavonoids (TFC) contents. In addition, the in vitro ABTS antioxidant and lipoxygenase activities were evaluated. Different organs (leaves, stems and flowers) of Anisosciadium lanatum were extracted using 70\% methanol to yield total methanol extracts of leaves (TML), stems (TMS) and flowers (TMF). Results demonstrated that TML, TMS and TMF are characterized by the content of different constituents such as flavonoids, phenolics/tannins, steroids, saponins, and carbohydrates at different levels. Ethyl acetate (EA) and butanol (BT) fractions of TML and TMS demonstrated the highest percentage of TPC and TFC. The results demonstrated the competence of EA and BT as free radical scavenger fractions compared to other fractions and its opportunity to contain bioactive antioxidant metabolites . TML, TMS and TMF exhibited Lipoxygenase inhibitory activity with IC50 values of 4.88, 5.40 and 6.05 μg/mL, respectively when compared to that of the positive control baicalein (IC50: 0.27 μg /mL). In conclusion, present investigation highlighted the potential of Anisosciadium lanatum to be promising candidate with activity against wide range of inflammatory-related diseases.

}, keywords = {ABTS, Anisosciadium lanatum, Lipoxygenase, total flavonoid, total phenolic}, doi = {10.5530/pj.2022.14.191}, author = {Mohammed Wasel Matar and Shahad Mohammed Nasser Alqahtani and Duaa Adnan Alghafli and Abdullah Abdulhamid Altaweel and Abdullah Jalal Alasoom and Hussein Ali Burshed and Marwan Mohamed Alshawush and Hany Ezzat Khalil} } @article {1000, title = {Inhibitory Effects of Different Varieties of Sweet Potato (Ipomoea batatas L.) Tubers Extracts on Lipoxygenase Activity}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {October 2019}, pages = {1195-1198}, type = {Original Article}, chapter = {1195}, abstract = {

Background: Sweet potatoes (Ipomoea batatas L.) with purple, orange and white varieties can be differentiated by their skin and flesh tubers{\textquoteright} colors. Research on anti-inflammatory activity of this plant is still limited although has been used traditionally. Objective: This study aimed to determine IC50 value of sweet potato tubers extracts in inhibiting lipoxygenase activity. Methods: Dried tubers of sweet potato were macerated with ethanol 70\%. Each extracts were tested for soybean lipoxygenase inhibitory activity, phytochemical screening and total flavonoid contents. IC50 value and total flavonoid contents obtained from each extracts were analyzed statistically. Results: IC50 value of purple, orange and white sweet potato tubers extracts are 46.09, 52.12 and 63.69 μg/mL respectively. Each extracts contain alkaloids, flavonoids, saponins, tannins and glycosides. Total flavonoid contents in purple, orange and white sweet potato extracts are 8.45{\textpm}0.41; 7.57{\textpm}0.03; and 6.12{\textpm}0.14 mgQE/g extract respectively. Conclusion: Total flavonoid contents and IC50 values of each extracts are strongly correlated and inversely proportional with significance value of 0.026 and correlation value of -0.999 which indicate that the higher total flavonoid contents, the stronger inhibitory activity.

}, keywords = {Anti-inflammatory, Ipomoea batatas L, Lipoxygenase, Sweet potato tubers, Total flavonoid contents}, doi = {10.5530/pj.2019.11.185}, author = {Sendangratri and Rosita Handayani and Berna Elya} } @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 {265, title = {Antioxidant Activity and Lipoxygenase Enzyme Inhibitory Assay with Total Flavonoids Content from Garcinia hombroniana Pierre Stem Bark Extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {276-279}, type = {Original Article}, chapter = {276}, abstract = {

Introduction: Garcinia has been known as a rich source of xanthones, flavonoids, and phenols. The aim of this research is to obtain data of antioxidant activity and to observe potential inhibition of lipoxygenase activity that most active from methanolic, ethyl acetate and n-hexane extracts with total flavonoids content from most active extracts from the bark of Garcinia hombroniana Pierre. Methods: The antioxidant activity was measured using the ferric reducing antioxidant power (FRAP), the anti-inflammatory assay was measured using inhibition of lipoxygenase activity test, qualitative analysis of flavonoids using thin layer chromatography, and total flavonoids content was measured using AlCl3 colorimetric method. Results: The results showed that the ethyl acetate extract from G. hombroniana Pierre stem bark as the most active extract for antioxidant and lipoxygenase inhibition activity with EC50 and IC50 value consecutively 15.34 \μg /ml; 0.26 \μg /ml. Total flavonoids content of ethyl acetate is 7.430 mg QE/g extract. The results of this study showed bark extract Garcinia hombroniana Pierre has antioxidant activity and potent to inhibit lipoxygenase activity. Conclusion: Based on the research for methanolic, ethyl acetate and n-hexane extract, it can be concluded that the ethyl acetate extract of G. hombroniana Pierre as the most active extract for antioxidant and lipoxygenase inhibition activity.

}, keywords = {Antioxidant, Garcinia hombroniana Pierre, Inflammation, Lipoxygenase, Total flavonoids content}, doi = {10.5530/pj.2017.2.47}, url = {http://phcogj.com/fulltext/314}, author = {Amanda Listiyani and Berna Elya and Nuraini Puspitasari} } @article {266, title = {Antioxidant Activity and Lipoxygenase Inhibition Test with Total Flavonoid Content from Garcinia kydia Roxburgh Leaves Extract}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {280-284}, type = {Original Article}, chapter = {280}, abstract = {

Introduction: Antioxidant is one of the therapeutic strategies to overcome oxidative stress and inhibit synthesis of inflammatory mediators through lipoxygenase pathway. Garcinia is the largest of Clusiaceae family which has been proven to provide antioxidant and anti-inflammatory activity. Garcinia kydia Roxburgh is one of the plants of this genus which is known to have antioxidant activity but lipoxygenase inhibition activity from this plant was unknown. Methods: This study aimed to test antioxidant activity of the methanol, ethyl acetate and n-hexane extract from Garcinia kydia Roxburgh leaves by FRAP (Ferric Reducing Antioxidant Power) method, anti-inflammatory activity was tested by inhibiting lipoxygenase and total flavonoid content by colorimetric methods AlCl3. Results: The results showed an antioxidant activity of methanol extract, ethyl acetate and n-hexane leaves of Garcinia kydia Roxburgh have EC50 value, respectively 18,448; 12,389 and 31,260 \μg/mL, and the lipoxygenase inhibition activity have IC50 value, respectively 0,556; 0,212 and 3,575 \μg/mL. Ethyl acetate extract of Garcinia kydia Roxburgh leaves was the most active extract in this study which has total flavonoid content, 30,650 mgQE/ gram extract. Conclusion: The conclusion, Garcinia kydia Roxburgh has antioxidant and lipoxygenase inhibition activity, with ethyl acetate extract as the most active extract which contains total flavonoids.

}, keywords = {Antioxidant, Flavonoid content, FRAP, Garcinia kydia Roxburgh, Lipoxygenase}, doi = {10.5530/pj.2017.2.48}, url = {http://phcogj.com/fulltext/315}, author = {Nur Laily Putri and Berna Elya and Nuraini Puspitasari} } @article {1534, title = {15-Lipoxygenase inhibition of selected Philippine medicinal plants}, journal = {Pharmacognosy Journal}, volume = {6}, year = {2014}, month = {18th Feb,2014}, pages = {43-46}, type = {Original Article}, abstract = {

Several extracts from Philippine medicinal plants used for asthma and other inflammatory diseases were evaluated for their ability to inhibit the action of 15-lipoxygenase. The inhibitory activity was tested spectrophotometrically using quercetin as positive control. Eleven species belonging to 11 families displayed varying inhibitory activities. Commelina diffusa and Euphorbia hirta showed the highest inhibitory activity at 51.3\% and 48.5\%, respectively. These plants may contain new 15-lipoxygenase inhibitors.

Key words: Asthma, inflammation, lipoxygenase, medicinal plants, plant extra.

}, keywords = {Asthma, Inflammation, Lipoxygenase, Medicinal plants, Plant extracts}, author = {Noemi D. Paguigan, and Christine L. Chichioco-Hernandez,} }