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All Journal Jurnal Riset Kimia Majalah Farmasetika Journal of Science and Technology Research for Pharmacy
Landyyun Rahmawan Sjahid
Universitas Muhammadiyah Prof. DR. HAMKA
Chemistry Medicine & Pharmacology

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Penetapan Kadar Fenolik dan Flavonoid Hasil Ultrasonic Assisted Extraction Daun Binahong (Anredera cordifolia [Ten] Steenis) Sjahid, Landyyun Rahmawan; Aqshari, Amelia; Sediarso, Sediarso
Jurnal Riset Kimia Vol 11, No 1 (2020): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v11i1.348

Abstract

Anredera cordifolia [Ten] Steenis has been proven to have pharmacological activity that is thought to be influenced by the presence of phenolic compounds and flavonoids. However, both compounds are found in small concentrations through conventional extraction (maceration, decoction, soxhlet, and reflux). This study aims to prove that the ultrasonic assisted extraction method can obtain higher concentrations of phenolic and flavonoid compounds. Dried binahong leaves were extracted using ultrasonic assisted extraction with 70% ethanol. Phenolic levels were determined using Folin-Ciocalteu, while flavonoid levels were determined using the colorimetric aluminum method. The results showed binahong leaves ethanolic extract had phenolic levels of 10.16 % GAE and flavonoid levels of 10.58 % QE. These results are much higher than the results obtained using conventional extraction so that ultrasonic assisted extraction can be recommended to maximize the extraction of phenolic and flavonoid levels from the leaves of Binahong (Anredera cordifolia [Ten] Steenis). 
Total Phenolic, Total Flavonoid Content and in vitro Sun Protection Factor test of Arabica Coffee Leaves Extract (Coffea arabica L) Fatmawati, Sofia; Sjahid, Landyyun Rahmawan; Utami, Nadiyya Maulida; Kartini, Kartini
Journal of Science and Technology Research for Pharmacy Vol 1 No 2 (2021)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jstrp.v1i2.51374

Abstract

Background: Arabica coffee leaf (Coffea arabica L.) is a well-known plant by the Indonesian people because it has many benefits apart from being a drink. Coffee leaves are known to have good antioxidant activity. The use of antioxidants in sunscreen preparations can prevent various diseases caused by UV radiation from UV rays’ sunlight. Aim: This study aims to determine the phenol content, the flavonoid content and the value of Sun Protection Factor (SPF) from differences between solvent extracts of arabica coffee leaves (Coffea arabica L.). Method: The extraction method used was maceration with solvents: 70% ethanol, 96% ethanol and methanol. Determination of phenol content was carried out using the Folin ciocalteu method. Determination of flavonoid content was done by the AlCl3 method. SPF value is based on the Mansur equation from absorbance scanning using UV Spectrophotometry. Result: The results obtained were the highest phenol and flavonoid content is in the methanolic extract of arabica coffee namely 62.371 ± 0.47 mgGAE/g and 8.6707 ± 0.04 mgQE/g. In the SPF test, the highest value was obtained from 70% ethanol extract of 5.0593 ± 1.28 at 100 ppm extract concentration with intermediate protection category. Conclusion: Arabica coffee leaves have the potential as an active ingredient in herbal sunscreens
Kajian Literatur : Peranan Berbagai Jenis Polimer Sebagai Gelling Agent Terhadap Sifat Fisik Sediaan Gel Faula Rohmatul Tri Agustiani; Landyyun Rahmawan Sjahid; Fith Khaira Nursal
Majalah Farmasetika Vol 7, No 4 (2022): Vol. 7, No. 4, Tahun 2022
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/mfarmasetika.v7i4.39016

Abstract

Gel merupakan sistem semi padat terdiri dari suspensi yang dibuat dari partikel anorganik yang kecil atau molekul organik yang besar, terpenetrasi oleh suatu cairan. Gel membutuhkan basis yang bersifat polimer yaitu polimer alami, semi sintetik dan sintetik. Penambahan gelling agent dapat mempengaruhi sifat fisik sediaan gel, sehingga membutuhkan uji sifat fisik untuk mendapatkan sediaan yang baik. Tujuan penelitian ini untuk mengulas dan melihat jumlah penggunaan gelling agent polimer yang berpengaruh terhadap sifat fisik sediaan topikal gel yang baik. Metode penelitian yang digunakan dalam penelitian ini adalah Narrative Review. Berdasarkan hasil kajian literatur dan pembahasan ulasan artikel yang telah dibuat bahwa pada gelling agent yang lazim digunakan dan memiliki sifat fisik yang baik untuk sediaan topikal gel yaitu pada sintetik carbomer, polimer semi sintetik HPMC, Na.CMC dan HEC, dan pada polimer alami gelati, gellan gum, Na.Alginat dan xanthan gum. Kesimpulan penelitian ini bahwa bahwa jenis polimer alami merupakan gelling agent yang paling banyak digunakan untuk sediaan topikal gel. Berbagai jenis polimer tersebut diantaranya yang paling populer adalah gelatin, gellan gum, natrium alginat dan xanthan gum. Semua jenis polimer alami yang dipilih memberikan sifat fisik gel yang baik dan memenuhi persyaratan farmasetika.
Co-Authors Aqshari, Amelia Fatmawati, Sofia Faula Rohmatul Tri Agustiani Fith Khaira Nursal Kartini Kartini Sediarso Sediarso, Sediarso Utami, Nadiyya Maulida