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Antioxidant Activity and Lipid Content of Aurantiochytrium sp. from Raja Ampat and Kepulauan Seribu Witasari, Hardi Astuti; Kintoko, Kintoko; Mahfudh, Nurkhasanah; Suhendra, Suhendra; Rangkuti, Ahmad Faizal; Ilmia, Nisrien; Santoso, Blegoh Iwan; Hutari, Andri
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 20, No 2 (2025): August 2025
Publisher : :Agency for Marine and Fisheries Research and Human Resources, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.1015

Raja Ampat (Southwest Papua Province) and Kepulauan Seribu (Jakarta Raya Province) are part of Indonesia#39;s territory, which includes the mangrove forest area. This habitat supports a diverse array of animals, plants, and microalgae, including Aurantiochytrium sp. It has antioxidant activity related to lipid content. This study aims to identify the lipid content and the antioxidant effects of the microalgae Aurantiochytrium sp.’s extract isolated from the mangrove forest areas of Raja Ampat and Kepulauan Seribu. The extraction process was conducted using the Folch method, which involves a 2:1 (v/v) chloroform-methanol solvent ratio. The microalgae Aurantiochytrium sp. extract of Raja Ampat (MAERA) and microalgae Aurantiochytrium sp. extract of Kepulauan Seribu (MAEKS) were analyzed using GC-MS, antioxidant potential tested in silico by target proteins (5ZLG, 2A1X, 3VLN, and 1EEM) using Autodock Tools, and in vitro by DPPH and ABTS radicals and the carotenoid bleaching method. The results showed that total squalene and fatty acids in MAERA and MAEKS were at different levels. Squalene as a ligand had the lowest binding energy (-9.4, -6.6, -7.7, and -6.5) compared to the native ligand (-5.6, -4.4, -5.2, and -5.2) and ascorbic acid (-5.6, -4.8, -5.3, and -4.9) by in silico antioxidant activity. The in vitro antioxidant activities by DPPH, ABTS, and ß-caroteen bleaching were 103.00 ± 3.75, 216.39 ± 367, 214.62 ± 7,07 (MAERA); and 131.85 ± 23.48, 225.50 ± 3.36, 251.69 ± 5.39 (MAEKS) were not significantly different (pgt;0.05) by all methods. These findings showed that the Aurantiochytrium sp. strains Raja Ampat and Kepulauan Seribu contained diverse levels of fatty acids and squalene. In the in silico study, squalene was evaluated and in vitro, the MAERA and MAEKS extracts showed moderate antioxidant activity.

Antioxidant Activity of Essential Oil of Baeckea frutescens L. (Ujung Atap) and GC-MS (Gas Chromatography-Mass Spectrometery) Analysis Mahfudh, Nurkhasanah; Apriyani, Silvi; Narwanti, Iin
Journal of Food and Pharmaceutical Sciences Vol 13, No 3 (2025): J.Food.Pharm.Sci
Publisher : Integrated Research and Testing Laboratory (LPPT) Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfps.21163

Ujung Atap plant (Baeckea frutescens L.) is a shrub that resembles a pine tree and is usually found in tropical hills, mountains, and coastal environments. B. frutescens contains flavonoids and phenolic compounds which have known as potential antioxidants. B. frutescens also contains essential oils which have been used as various treatments and aromatherapy. This study aims to measure the effectiveness of antioxidants in Ujung atap essential oils based on the IC50 value with the ABTS method and identify the chemical compound components of Ujung atap essential oils with the GC-MS. The stages of this research method consist of making Ujung atap essential oil using the steam-water distillation method, measuring the antioxidant activity of Ujung atap leaf essential oil using the ABTS method (2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonate)) and analysis of the chemical compound components of Ujung atap essential oil using the GC-MS (Gas Chromatography and Mass Spectroscopy). Based on the results of this research, it is known that the antioxidant activity of the ujung atap (Baeckea frutescens L.) is included in the very weak category with an IC50 of 481.525 ± 5.455 μl/L or equivalent to 435.154 ± 4.930 ug/mL. Meanwhile, the comparative antioxidant activity of quercetin has an IC50 value of 2.846 ± 0.156 μg/mL, which is included in the very strong category. In the analysis test of the essential oil compound content of the ujung atap (Baeckea frutescens L.), it was discovered that there were six main components of the essential oil compound of the ujung atap (Baeckea frutescens L.) who had a concentration of more than 5%.) who have concentration more than 5%, namely, 1-beta- Pinene (21.62%), 1,8-Cineole (17.73%), alpha-pinene (14.93%), Gamma-Terpinene (6.84%), 3- Cyclohexene-1-methanol,α,α,4-trimethyl-(CAS) (5.78%), and Bicyclo[3.1.1]hept-2- ene,3,6,6 trimethyl-(CAS) (5.02%).

Antioxidant Activity, Total Phenolics, and Total Flavonoids Content of Bajakah Tampala (Spatholobus littoralis): The Indigenous Herbal Medicine from Kalimantan Mahfudh, Nurkhasanah; Murdi, Habib Basyanur; Utami, Dwi; Ahda, Mustofa; Nashihah, Siti; Andika, Andika
Borneo Journal of Pharmacy Vol. 7 No. 3 (2024): Borneo Journal of Pharmacy
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/bjop.v7i3.6609

Bajakah tampala (Spatholobus littoralis), a medicinal plant traditionally used in Indonesia, particularly on Kalimantan Island, has garnered interest for its potential health benefits. However, scientific evidence remains scarce. This study investigated the antioxidant activity of S. littoralis extract and its total phenolic and flavonoid content. Ethanol extraction and evaporation were used to prepare the extract. The DPPH method assessed antioxidant activity, while Folin–Ciocalteu and AlCl3 complexation methods quantified total phenolics and flavonoids, respectively. The S. littoralis extract exhibited strong antioxidant activity with an IC50 value of 54.19 ± 8.15 µg/mL. Additionally, the extract contained substantial levels of phenolics (0.649 ± 0.026% GAE) and flavonoids (1.084 ± 0.043% QE). These findings suggest a link between the high phenolic and flavonoid content of S. littoralis extract and its observed strong antioxidant activity.

Antioxidant Activity of Essential Oil of Baeckea frutescens L. (Ujung Atap) and GC-MS (Gas Chromatography-Mass Spectrometery) Analysis Mahfudh, Nurkhasanah; Apriyani, Silvi; Narwanti, Iin
Journal of Food and Pharmaceutical Sciences Vol 13, No 3 (2025): J.Food.Pharm.Sci
Publisher : Integrated Research and Testing Laboratory (LPPT) Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfps.21163

Ujung Atap plant (Baeckea frutescens L.) is a shrub that resembles a pine tree and is usually found in tropical hills, mountains, and coastal environments. B. frutescens contains flavonoids and phenolic compounds which have known as potential antioxidants. B. frutescens also contains essential oils which have been used as various treatments and aromatherapy. This study aims to measure the effectiveness of antioxidants in Ujung atap essential oils based on the IC50 value with the ABTS method and identify the chemical compound components of Ujung atap essential oils with the GC-MS. The stages of this research method consist of making Ujung atap essential oil using the steam-water distillation method, measuring the antioxidant activity of Ujung atap leaf essential oil using the ABTS method (2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonate)) and analysis of the chemical compound components of Ujung atap essential oil using the GC-MS (Gas Chromatography and Mass Spectroscopy). Based on the results of this research, it is known that the antioxidant activity of the ujung atap (Baeckea frutescens L.) is included in the very weak category with an IC50 of 481.525 ± 5.455 μl/L or equivalent to 435.154 ± 4.930 ug/mL. Meanwhile, the comparative antioxidant activity of quercetin has an IC50 value of 2.846 ± 0.156 μg/mL, which is included in the very strong category. In the analysis test of the essential oil compound content of the ujung atap (Baeckea frutescens L.), it was discovered that there were six main components of the essential oil compound of the ujung atap (Baeckea frutescens L.) who had a concentration of more than 5%.) who have concentration more than 5%, namely, 1-beta- Pinene (21.62%), 1,8-Cineole (17.73%), alpha-pinene (14.93%), Gamma-Terpinene (6.84%), 3- Cyclohexene-1-methanol,α,α,4-trimethyl-(CAS) (5.78%), and Bicyclo[3.1.1]hept-2- ene,3,6,6 trimethyl-(CAS) (5.02%).

Penetapan kadar alkohol pada kosmetik menggunakan metode kromatografi gas Albab, Farah Qisth; Mahfudh, Nurkhasanah
Journal of Halal Science and Research Vol. 1 No. 1 (2020): September
Publisher : Universitas Ahmad Dahlan

Alkohol merupakan bahan yang banyak digunakan di farmasi, salah satunya kosmetik. Â Penggunaan alkohol pada kosmetik biasanya memiliki fungsi sebagai pelarut, astrigent, desinfektan, mengurangi tegangan permukaan, dan meningkatkan daya pembersih. Â Penggunaan alkohol di kosmetik menurut Majelis Ulama Indonesia diperbolehkan asalkan tidak berasal dari industri khamr, namun sekarang banyak kosmetik yang terdapat label free alcohol. Tujuan penelitian ini adalah untuk mengidentifikasi kandungan alkohol pada produk kosmetik yang mengklaim free alcoholÂ dan mengetahui kadar alkohol pada kosmetik. Metode penelitian dilakukan mengunakan teknik obsevasional survey, non probability berupa simple random sampling pada kosmetik di swalayan. Salah satu validasi metode analisa yaitu uji kesesuaian sistem dilakukan sebelum analis sampel untuk memastikan bahwa instrumen dapat menghasilkan data yang dapat diterima yaitu nilai tR sampel untuk mengetahui mengandung alkohol atau tidak. Analisis kuantitatif dilakukan dengan rasio AUC etanol-isopropanol dengan kadar dan dibuat regresi linear. Hasil uji kesesuaian sistem dengan parameter RSD tR 0,2231%; TF 0,9568; N 2872,5318; dan Rs 1,874 memenuhi syarat kecuali RSD AUC 10,0277% tidak memenuhi syarat sehingga sistem akan mengahasilkan data yang dapat diterima.Â Empat sampel dari 6 sampel kosmetik micellar water dan toner positif mengandung alkohol tidak sesuai dengan label pada kemasan yaitu produk kosmetik Wardah, Mustika Ratu, Pixy dan Pondâ€™s. Dua sampel negatif tidak mengandung alkohol adalah Nivea dan Himalaya. Range kadar alkohol yang terdapat pada kosmetik tersebut dari 2,48 x10-4% - 4,96 x10-4 %.

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