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Antibacterial Activity Test of Ethanol Extract of Mangkokan Leaves (Polyscias scutallarium (Burm.f.) Fosberg) against Escherichia coli and Staphylococcus aureus Deri Islami; Vonny Kurnia Utama; Dian Mayasari; Yan Hendrika
JURNAL PROTEKSI KESEHATAN Vol 10 No 2 (2021): JPK: Jurnal Proteksi Kesehatan
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Poltekkes Kemenkes Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36929/jpk.v10i2.374

Abstract

Mangkokan is one of traditional medicinal plants that has many benefits in restoring health, such as preventing hair loss, treating wounds, antibacterial agent, improving blood circulation and as an antioxidant agent. This study aimed to examine the activity of the ethanol extract of the mangkokan leaf (Polyscias scutellarium (Burm.f.) Fosberg) against Escherichia coli and Staphylococcus aureus. The extraction process was carried out by gradual maceration through three solvents including n-hexane, ethyl acetate, and ethanol. The antibacterial activity test was carried out by agar diffusion method by calculating diameter of the inhibition zone from ethanol extract of mangkokan leaf with four variation concentrations: 20%, 40%, 60%, and 80%. The antibacterial activity of the ethanolic extract of the mangkokan leaf against Escherichia coli resulted in the average diameter od the inhibition zone at the following concentrations: 20% (5,9 mm), 40% (5,2 mm), 60% (5,9 mm), dan 80% (7,03 mm. While antibacterial test against Staphylococcus aures resulted in the average diameter of the inhibition zone at the following concentrations: 20% (9,66 mm), 40% (10,71 mm), 60% (11,27 mm), 80% (12,42 mm).
Gel Preparation Using Matoa Leaf (Pometia pinnata) Ethanol Extract: Formulation and Physical Evaluation Vonny Kurnia Utama; Yan Hendrika; Fuji Astuti
JURNAL PROTEKSI KESEHATAN Vol 11 No 1 (2022): JPK: Jurnal Proteksi Kesehatan
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Poltekkes Kemenkes Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36929/jpk.v11i1.499

Abstract

Matoa leaves (Pometia pinnata) contain antioxidants that can prevent premature aging due to free radical damage to skin cells, reduce dark spots, acne, and improve collagen performance in the skin. The gel preparation was chosen because it provides a feeling of coolness, moisture, and good absorption on the skin and is easily washed off with water. The purpose of this research is to create a gel formula and conduct a physical evaluation of the ethanol extract of matoa leaf gel. This study employed an experimental method in which gel preparations were made from ethanol extract of matoa leaves at concentrations of 2%, 3%, and 4%. The organoleptic test results are thick, clear, light green, dark green, and dense dark green, with a distinct smell of ethanol extract of matoa leaves. F0, F1, F2, and F3 all pass the homogeneity test. The pH test results for F0, F1, F2, and F3 are 4-5. F0, F1, F2, and F3 dispersion tests were 6.1 cm, 5.3 cm, 5.7 cm, and 5.5 cm, respectively. As a result, the ethanolic extract of matoa leaves can be formulated as a gel preparation with favorable physical results.
Peningkatan Kualitas Minyak Ikan Patin (Pangasius hypophthalmus) dengan Penambahan Minyak Sereh Sebagai Antioksidan Vonny Kurnia Utama; Azlaini Yus Nasution; Yan Hendrika; Heri Safitri
Jurnal Pendidikan dan Konseling (JPDK) Vol. 5 No. 1 (2023): Jurnal Pendidikan dan Konseling
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v5i1.11718

Abstract

Ikan patin merupakan salah satu ikan air tawar yang bisa dijadikan sumber asam lemak karena mempunyai kandungan minyak tinggi. Ada proses oksidasi bisa menyebabkan kerusakan pada minyak yang ditandai dengan ketengikan. Penambahan antioksidan diperlukan untuk mencegah terjadinya reaksi oksidasi. Penelitian ini bertujuan untuk mengetahui kualitas minyak ikan patin (Pangasius hypophthalmus) dengan penambahan minyak sereh sebagai antioksidan alami. Metode yang digunakan untuk mengetahui kualitas minyak ikan pada penelitian ini adalah metode titrasi dengan mengukur angka peroksida dan jumlah asam lemak bebas. Hasil penelitian menunjukkan bahwa setelah penyimpanan selama 7 hari angka peroksida minyak ikan larutan kontrol meningkat 0,51 meq/kg, sedangkan angka peroksida larutan uji dan larutan pembanding meningkat 0,37 meq/kg dan 0,97 meq/kg masing-masingnya. Kadar asam lemak bebas minyak ikan baik larutan kontrol, larutan uji, dan larutan kontrol adalah 0,25%, 0,08%, dan 0,08%. Berdasarkan hasil yang diperoleh dapat disimpulkan minyak sereh dapat menghambat kenaikan angka peroksida dan kadar asam lemak bebas pada minyak ikan patin.
Analisa Kandungan Hidrokuinon Pada Krim Pemutih Wajah yang Beredar di Pasar Kodim Kota Pekanbaru Dengan Metode Spektrofotometer Uv-Vis Vonny Kurnia Utama; M. Ainur Rifqi; Diva Andini Putri
JFARM - Jurnal Farmasi Vol. 1 No. 1 (2023)
Publisher : Yayasan Rahmatan Fiddunya Wal Akhirah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jfarm.v1i1.434

Abstract

Whitening cream is a type of cosmetic that incorporates active substances aimed at inhibiting the formation of melanin, thus promoting lighter skin color. Hydroquinone is a frequently utilized active compound in whitening creams, despite its potential to cause skin cancer when excessively used. The objective of this study was to determine the concentration of hydroquinone in facial whitening creams available in the Kodim Market of Pekanbaru City using the Uv-Vis Spectrophotometry method. Through spectrophotometric analysis, the following hydroquinone concentrations were obtained for the samples: sample A (3,409 ppm), sample B (4,774 ppm), sample C (3,250 ppm), sample D (7,132 ppm), and sample E (3,980 ppm). The corresponding percentages of hydroquinone content in each sample were calculated as follows: sample A (0.6818%), sample B (0.9548%), sample C (0.65%), sample D (1.4264%), and sample E (0.796%). These findings indicate that all five facial whitening creams tested contain hydroquinone.