@article {1976, title = {Tectona Grandis Leaves: Determination of Total Flavonoid Content, Phenolic Content, Characterization of the Leaves, and Compound Identification in GC-MS}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {March 2023}, pages = {165-170}, type = {Research Article}, chapter = {165}, abstract = {

Nowadays, traditional plant study has grown in importance as their use has been increased. Tectona grandis (teak) is one of several plants that have been studied for its phytochemical and pharmacological properties. This plant includes a number of secondary metabolites, which may explain its diverse pharmacological properties. Although teak leaf compounds have been examined in the past, there is still little information on the diversity of teak leaf compounds. As a result, we are employing several methodologies to determine the total flavonoids content, phenolic content, water extractable matter, ethanol extractable matter, total ash content, and other component analysis of teak leaves. We found that the average of total flavonoid content in the teak leaves is about 3.93 {\textpm} 0.008\%w/w, while the average total phenolic concentration in teak leaves is about 4.3{\textpm}0.15\%w/w. The Gas Chromatography- Mass Spectrometry GC-MS study of the methanol extract of T. grandis leaves also found twenty-three active chemical compounds (phytochemical components)

}, keywords = {Ash content, Flavonoids content, GC-MS., Moisture content, Phenolic content, Teak, Tectona grandis, Water content}, doi = {10.5530/pj.2023.15.24}, author = {Pepi Budianto and Suroto Suroto and Brian Wasita and Diah Kurnia Mirawati} } @article {1666, title = {Potential of Ethanolic Extract from Ripe Musa balbisiana Colla Fruit Using Ultrasound-Assisted Extraction as An Antioxidant and Anti-Gout}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {November 2021}, pages = {1332-1340}, type = {Original Article}, chapter = {1332}, abstract = {

Plant extracts or their secondary metabolites have functioned as antioxidants in phytotherapy drugs which function as protection against various diseases related to oxidative stress and free radicals. Free radicals play an important role in the initiation and development of various diseases, one of which is uric acid. Hhis study aims to obtain ethanolic extract from the ripe fruit of Musa balbisiana Colla using the UAE method and obtain information about secondary metabolites and their bioactivity as antioxidants and anti-gout. The results showed that antioxidant activity test using the DPPH and FRAP methods gave IC50 values of 150.24 {\textpm} 0.0348 mg/L and 227.80 {\textpm} 0.0986 mg / L, respectively. The total phenolic content value of 625.64 {\textpm} 0.36 mg GAE/g ethanolic extract is thought to have a role in high antioxidant activity. In addition, ethanol extract with a concentration of 50 mg / L has activity in reducing uric acid levels by around 9\%. It can be concluded that the ethanolic extract produced by UAE has potential as a source of anti-oxidants and anti-gout.

}, keywords = {Anti-gout, Antioxidant, Musa balbisiana Colla, Phenolic content, UAE}, doi = {10.5530/pj.2021.13.168}, author = {Candra Irawan and Andita Utami and Erna Styani and Imalia Dwi Putri and Ratna Komala Putri and Avisani Dewanta and Annisa Ramadhanti} } @article {1234, title = {Bioactivity and Extraction Method with Ultrasonication of Nelumbo nucifera Linn. Anti Aging Drinks}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {1097-1103}, type = {Research Article}, chapter = {1097}, abstract = {

Introduction: Nelumbo nucifera Linn. Flowers health drinks currently are one of the popular demand globally in Thailand and all over the world. There are plenty of substandard or over claimed of antioxidant content labeled at health drink bottles. The consumers do not obtain enough health benefits anti-oxidant contents which are destroyed by heat during their production process. Methods: This study aimed to evaluate the optimization of extraction including water, 40 \% and 50\% ethyl alcohol using maceration and ultra-sonication method to obtain the highest antioxidant activity compared with DPPH, FRAP and ABTS methods were investigated including total phenolic and flavonoid contents by HPLC in different period of time. The analysis of acute toxicity in white wistar rats by oral administrating of Nelumbo nucifera Linn. flowers extract was testing for after 24 h and 14 d. Results: It was found that Nelumbo nucifera Linn. flower extract drink consisted of high contents of gallic acid, catechin and rutin by HPLC method. Nelumbo nucifera Linn flowers Highest Total Phenolic compound in Nelumbo nucifera Linn. flower extracts with sonicating with 50\% ethanol was 0.954639 {\textpm} 0.109672. Highest Total flavonoids in Nelumbo nucifera Linn. flower extracts macerating in 50 \% ethanol at day 5th was 1.100275 {\textpm} 0.777271.and the sonication with 40\% ethanol was 0.394283+/- 0.51175. Conclusions: The result of acute toxicity analysis showed no toxicity. Nelumbo nucifera Linn. flower extract drinks which are safe as a health drink for consumers. The further market analysis with sensory test should be essential for further research.

}, keywords = {Acute toxicity, Flavonoids, Flower extract drink, HPLC, Nelumbo nucifera Linn., Phenolic content, Ultra sonication Extraction}, doi = {10.5530/pj.2020.12.155}, author = {Buavaroon Srichaikul} } @article {1189, title = {Phytochemicals, Antioxidants and Anti-tyrosinase Analyses of Selected Ginger Plants}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {June 2020}, pages = {872-883}, type = {Research Article}, chapter = {872}, abstract = {

Background: Some of Zingeberaceae are not widely used for medicine of food, although in Thailand have been used them for many reasons about health or the diet. This study evalued the phytochemicals and anti-tyrosinase activities of 16 plant species of Alpinia, Amomum, Curcuma, Etlingera and Kaemferia (Zingiberaceae). Methods: The extractions of dried powdered rhizomes were performed using n-hexane, ethylacetate and ethanol. Percentage extract yield of the samples varied among species and solvent extracts. Chemical groups (alkaloids, flavonoids, tannins, polyphenols, steroids and terpenoids) were identified using phytochemical screening. The total phenolic contents (TPC) were analyzed using the Folin-Ciocalteu{\textquoteright}s reagent, while antioxidant activities were detected using 2,2-diphenyl-1- picrylhydrazyl (DPPH) and the 2,2{\textquoteright}-azino-bis (3-ethylbenzothizoline-6-sulphonic acid) (ABTS.+). The anti-tyrosinase was expressed to the half maximal inhibitory concentration (IC50) value (mg/mL). Results: The ethyl acetate extract of Amomum showed the highest value of TPC. The strongest antioxidant activity were found in Amomum and Kaemferia extracts, while ethyl acetate and ethanol extracts of all samples have a better antioxidant properties than the n-hexane extracts. On the other hand, the n-hexane extracts have the highest anti-tyrosinase potential in all samples and of these, Curcuma extracts were the best group. Conclusion: Our research indicated that plants of the Zingiberaceae would be new sources of antioxidants and anti-tyrosinase for further natural product developments in cosmetics, food or nutraceuticals.

}, keywords = {ABTS assay, Anti-tyrosinase, DPPH assay, Phenolic content, Phytochemicals, Zingiberaceae}, doi = {10.5530/pj.2020.12.125}, author = {Apinya Rachkeeree and Kuttiga Kantadoung and Ratchadawan Puangpradub and Ratchuporn Suksathan} } @article {770, title = {Antioxidant Activity, Total Phenolic and Flavonoid Content of Berberis aristata DC. and Berberis thomsoniana C.K. Schneid. from Sagarmatha National Park, Nepal}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {November 2018}, pages = {s167-s171}, type = {Original Article}, chapter = {s167}, abstract = {

Background: Medicinal plants are the major sources of the crude drugs and natural antioxidants. Berberis species have been used in the treatment of various ailments around the world including Nepal. However, systematic study on phytochemistry and pharmacology of Berberis species from Nepal is lacking. Objectives: To evaluate the antioxidant activity, total phenolic and flavonoid contents of Berberis aristata and Berberis thomsoniana from Sagarmatha National Park. Materials and Methods: Antioxidant activity was measured through 2, 2-Diphenyl-1-Picrylhydrazyl assay. Total phenolic and flavonoid content were estimated using Folin\–Ciocalteau and aluminum chloride method respectively. Results: Samples showed dose-dependent radical scavenging activity. Radical scavenging activity of the methanolic extracts of different parts of B. aristata and B. thomsoniana ranged from 19.38 to 98.47\%, with leaf extracts of B. thomsoniana showing the strongest activity. The total phenolic content of the samples varied from 11.04 to 65.30 mg GAE g-1 dry weight whereas total flavonoid content was in between 2.4 to 16.46 mg quercetin/g dry weight. Conclusion: Among the tested samples, leaf extracts of B. thomsoniana showed the strongest antioxidant activity and contained the highest amount of total phenolic and flavonoid content.

}, keywords = {antioxidant activity, Berberis, Flavonoid content, Nepal, Phenolic content}, doi = {10.5530/pj.2018.6s.29}, author = {Lok Ranjan Bhatt and Bina Wagle and Minu Adhikari and Santoshi Bhusal and Anjana Giri and Shandesh Bhattarai} } @article {129, title = {Assessment of Total Phenolic, Flavonoid, Tannin Content and Phytochemical Screening of Leaf and Flower Extracts from Peltophorum pterocarpum (DC.) Backer ex K.Heyne: a comparative study}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {December 2015}, pages = {140-143}, type = {Original Article}, chapter = {140}, abstract = {

Introduction: Total phenolic, flavonoid and tannin content of leaf and flower extract of Peltophorum pterocarpum (DC.) Backer ex K.Heyne was compared. Objective: To explore total phenolic, flavonoid and tannin content of both leaf and flower extracts of Peltophorum pterocarpum (DC) K Heyne. Method: Initially, collected fresh leaves and flower samples were shade dried and extracted with various solvents such as aqueous methanol (1:1), ethyl acetate, ethanol and aqueous. Qualitative analysis was performed for various phytochemical. Then the total phenolic content, total flavonoid content and total tannin content was estimated. Results: In preliminary phyto-chemical examination of various solvent extracts of both leaf and flowers of P. pterocarpum revealed that the presence of various phytochemicals such as phlobatannins, terpenoids, alkaloids, saponins, tannin, reducing sugars, phenols and steroids. In phtyochemical evaluation, when compare with all other solvents, Ethanolic extracts shows maximum extractive value. In case of ethyl acetate, it shows very low extractive value in all three phyto-chemicals. In phytochemical evaluation studies, total phenolic content of leaves shows highest in ethanolic extract (33.17 \± 4.72 mg/g) and lowest in ethyl acetate extract from flower (4.71 \± 0.07 mg/g), Similarly, flavonoid content of leaves shows highest in ethanolic extract (1.43 \± 0.01 mg/g) and lowest in aqueous extract of flower (0.23 \± 0.09 mg/g) but in case of tannin content, flower extracts shows higher tannin content in ethanolic extract (844.59 \± 10.38 mg/g) whereas lowest tannin content in leaf ethyl acetate extract (9.54 \± 6.98 mg/g). Conclusion: This is first report of comparative studies on total phenolic, flavonoid and tannin content of various solvent extracts both leaves and flowers from Peltophorum pterocarpum (DC) K Heyne.

}, keywords = {Flavonoid, Peltophorum pterocarpum, Phenolic content, Phytochemicals, Solvent extraction., Tannin}, doi = {10.5530/pj.2016.2.7}, author = {Peraman Muthukumaran and Nachimuthu Saraswathy and Vijayasekar Aswitha and Ramesh Balan and Venkatesh Babu Gokhul and Palanikumar Indumathi and Sivasubramani Yuvapriya} }