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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Alchemy : Journal of Chemistry Jurnal Harpodon Borneo Biotropika Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Elkawnie EduChemia: Jurnal Kimia dan Pendidikan Pharmascience Chimica et Natura Acta Acta Pharmaciae Indonesia : Acta Pharm Indo Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Indonesian Journal of Pure and Applied Chemistry Chemistry Indonesian Journal of Chemical Research Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal GEOSAPTA Fullerene Journal of Chemistry ALKIMIA : Jurnal Ilmu Kimia dan Terapan Stannum : Jurnal Sains dan Terapan Kimia ASEAN Journal of Chemical Engineering Jurnal Abdi: Media Pengabdian Kepada Masyarakat EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi Jurnal Sains dan Edukasi Sains Jurnal Pijar MIPA Asian Journal of Health and Applied Sciences Indonesian Journal of Community Empowerment Dharma Pengabdian Perguruan Tinggi (DEPATI) Jurnal Pengabdian Pada Masyarakat
Robby Gus Mahardika
Departement Of Chemistry, Faculty Of Engineering, Universitas Bangka Belitung Jl. Kampus Peradaban, Merawang, Bangka, 33172
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Journal : Indonesian Journal of Pure and Applied Chemistry

 1 
EKSTRAKSI DAUN PELAWAN (Tristaniopsis merguensis)SEBAGAI ANTIOKSIDAN MENGGUNAKAN MICROWAVE ASSISTED EXTRACTION (MAE) Sito Enggiwanto; Fusfita Istiqomah; Kasro Daniati; Occa Roanisca; Robby Gus Mahardika
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 2 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.726 KB) | DOI: 10.26418/indonesian.v1i2.30528

Abstract

Indonesia is a country that produces a wealth of abundant biodiversity, one of which is a plant that is often cultivated the tree of Pelawan (Tristaniopsis merguensis). Pelawan trees are widely spread in Indonesia one of them found in the forests of the Bangka Belitung island. Therefore, this study aims to identify the secondary metabolites and testing antioxidants in leaf of pelawan extract by comparing methods of Microwave Assisted Extraction (MAE) with maceration method. The resistant leaf used in this study was obtained from Sempan, Bangka Belitung. The observation result shows that the use of MAE method can extract with faster time compared with maceration method. So the MAE method is more effective than the maceration method. The using of MAE method for 30 minutes obtained the highest yield percentage of 41.3% in ethanol solvent which is more effective than acetone solvent. Extraction by using 48 hour maceration yields is 28.985%. While the extraction with 30 minute maceration is 13.385%. Testing of antioxidant activity using Microwave Assisted Extraction (MAE) method on acetone solvent has the highest antioxidant activity than ethanol extract that is 9,501 μg/mL. The use of the MAE method is more efficient in extracting the leaves of Pelawan than the maceration method when viewed from the time and antioxidant activity.
PENINGKATAN KUALITAS MINYAK JELANTA MENGGUNAKAN KARBON AKTIF DAN EKSTRAK PUCUK IDAT (Cratoxylum glaucum) Robby Gus Mahardika; Sito Enggiwanto; Ary Samsiar
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.586 KB) | DOI: 10.26418/indonesian.v1i1.26039

Abstract

Silica Waste cooking oil can be used as a soap or biodiesel. Good soaps or biodiesel should be from oils that have low levels of fatty acids and free radicals. However, waste cooking oil has high free fatty acid and free radical, it is necessary to increase the quality of waste cooking oil. One effort to improve the quality of waste cooking oil can use activated carbon as an adsorbent. Decrease in free radicals in cooking oil can use antioxidants from extract pucuk idat (Cratoxylum glaucum). This study aims to see the effect of extract pucuk idat on the process of improving the quality of waste cooking oil. The process of improvement by adding activated carbon and varying the concentration of ethanol extract pucuk idat. Activated carbon used 10% with variation of extract 0,25%; 0,5% and 0,75%. This process followed by stirring for 15 minutes at 80°C, then soaked for 3 days. Oil quality are identified by the method of determining the levels of free fatty acids and acid numbers. The results of this study indicate that extract pucuk idat in ethanol with 0,75% concentration has the lowest free fatty acid and acid number. Extract pucuk idat can improve the quality of waste cooking oil.
Co-Authors Adisyahputra Adisyahputra Adisyahputra Adisyahputra Adisyahputra Adisyahputra Adisyahputra Adisyahputra, Adisyahputra Afrilia, Mega Ajeng Triane Syawila Amanah, Hairil Amelia, Ririn Ana Mardliyah Anggraeni Anggraeni Ary Samsiar Ary Samsiar Benget Harmoko Manik Boy Dian Anugra Sandy Delvia Safitri Dewi Septia Ningsih Dianti Aviliani Eva Utami Fadiyah, Inas Fajar Indah Puspita Sari Fajar Indah Puspita Sari Fajar Indah Puspita Sari Fitri Afriani Fusfita Istiqomah Genta Febri Kusuma Gita Afriza Guskarnali, Guskarnali Henri Henri Henri Henri, Henri Herman Aldila Ila Rosilawati Janiar Pitulima Kasro Daniati khairul fajri, khairul Khoirotul Ummah Khoirotul Ummah Lestari, Iin Lidya, Lidya Liska Liska, Liska Mariam Ulfah Maya Yusnita Megiyo Megiyo Nazrun Nazrun Nina Kadaritna Nosa Mayasani Novianti, Shindi Nur Hidayatiandri Nurhadini Nurhadini Putri, Faizah Alivia Rani Rani RANI RANI, RANI Ristika Oktavia Asriza Roanisca, Occa Sari, Ratih Puspita Selvy Aprilia Sembiring, Rinawati Shakila, Shania Shania Sakhila Sito Enggiwanto Sito Enggiwanto Stefan Marco Rumengan Surtina, Surtina Susanti Susanti Syarmila, Syarmila Utami, Sri Risky Verry Andre Fabiani Widia, Widia Widodo Budi Kurniawan Yopan Pratama Yulia Yulia Zulita, Zulita