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KADAR FENOLIK DAN FLAVONOID TOTAL SERTA AKTIVITAS ANTIOKSIDAN DARI EKSTRAK METANOL AKAR, DAUN DAN BUNGA SIMPUR AIR (Dillenia suffroticosa Griff. Ex Hook) Rahayu Utami Utami; Ginta Rio Maranti; Mustika Furi; Melzi Octaviani; Septi Muharni; Fina Aryani; Husnawati; Wira Noviana Suhery; Musyirna Rahmah Nst; Haiyul Fadhli; Emma Susanti; Emrizal
Jurnal Penelitian Farmasi Indonesia Vol. 10 No. 2 (2021): JPFI
Publisher : Lembaga Penelitian Sekolah Tinggi Ilmu Farmasi Jl. Kamboja Simpang Baru-Panam, Pekanbaru, Riau 28293 Telp. (0761) 588006, Fax. (0761) 588007 e-mail: editor-jpfi@stifar-riau.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51887/jpfi.v10i2.1418

Abstract

Simpur air is one of plant that has been using as traditional medicine for treating several diseases. Some studies on its chemical constituents and biological activities of this species have been published. However, chemical constituents and antioxidant activity of this plant which is Riau origin has not been reported before. This study aims to determine the total of phenolic and flavonoid content as well as its antioxidant activity of methanol extracts of roots, leaves and flowers of simpur air. Determination of total of phenolic and flavonoid content was performed by spectrophotometric method using Folin Ciocalteu and AlCl3 as reagents, respectively. Whereas, its antioxidant activity was evaluated using DPPH method. The results showed that methanol extracts of its roots afforded the highest total of phenolic and flavonoid content and also its antioxidant activity. The total of phenolic content of methanol extracts of its roots of 428.131 GAE/mg extract; its total of flavonoid content of 766.164 QE/mg extract; as for its antioxidant activity gave IC50 value of 3.852 µg/ml.
ISOLASI DAN UJI AKTIVITAS ANTIBAKTERI SENYAWA METABOLIT SEKUNDER DARI EKSTRAK METANOL DAUN MARPUYAN (Rhodamnia cinerea Jack.) Musyirna Rahmah Nst; Dwi Andreyas; Rahma Dona; Emrizal; Emma Susanti; Ihsan Ikhtiarudin; Rahayu Utami
Jurnal Ilmiah Manuntung Vol 9 No 2 (2023): Jurnal Ilmiah Manuntung: Sains Farmasi Dan Kesehatan
Publisher : Sekolah Tinggi Ilmu Kesehatan Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51352/jim.v9i2.671

Abstract

A study on isolation and antibacterial activity of secondary metabolites from the methanol extract of Marpuyan (Rhodamnia cinerea Jack.) Leaves on Escherichia coli has been carried out. Isolation was carried out by column chromatography methods. Whereas the antibacterial activity test was carried out using agar diffusion method. The results of the isolation produced 17.9 mg of RC-F13 isolate compound in the form of light yellow crystals, with a melting point of 170-172oC and soluble in methanol. The results of identification of RC- F13 isolate compounds through testing with AlCl3 reagents, positive including the flavonoid group, were strengthened by the results of the UV spectrum and FT-IR spectrum. Based on the results of the UV spectrum, it was seen that the RC- F13 isolate compound showed λ max 353.60, 257.00 and 209.20 nm. The FT-IR spectrum shows the presence of several functional groups such as OH, C aliphatic C-H, C = O carbonyl, C = C aromatic and C-O. testing the antibacterial activity of methanol extract with a concentration of 20%; 10%; 1%; 0.1% and 0.01%, fraction 13 at 1% concentration; 0.1% and 0.01% and RC- F13 isolate compound concentration of 0.1%, against Escherichia coli bacteria did not show any antibacterial activity which was marked by the absence of clear areas around the disc.
Development of Tourism Village on The Basis of Tourist Typology (The Case of Pematang Johar Tourism Village, Deli Serdang Regency Emrizal; Ria Tamba; Sitti Nurlaeli
Tourism, Hospitality And Culture Insights Journal Vol 1 No 2 (2021): THCIJ (Tourism, Hospitality and Culture Insights Journal)
Publisher : Politeknik Pariwisata Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36983/thcij.v1i2.296

Abstract

The purpose of this study is to determine the typology of tourists visiting Pematang Johar Tourism Village and to analyze the implications of the findings for planning the development of tourism villages in the future. Survey method was used to collect data. 110 respondents were involved in this study. The data analysis was done by using Plog's psychographic typology model. The results showed that the majority of visitors to Wisata Sawah Pematang Johar belonged to the pro-allocentric group, followed by the mid-centric type and the pro-psychocentric group. The implications of the findings are discussed for the purposes of planning and developing tourism products and services in the tourist village of Wisata Sawah Pematang Johar.