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All Journal KOVALEN: Jurnal Riset Kimia Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Pure and Applied Chemistry Stannum : Jurnal Sains dan Terapan Kimia CHEDS: Journal of Chemistry, Education, and Science Arfak Chem: Chemistry Education Journal BIO-CONS: Jurnal Biologi dan Konservasi Jurna Beta Kimia
Situmeang, Boima
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Energy Environmental Science Materials Science & Nanotechnology Social Sciences

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PENGARUH PENAMBAHAN KOAGULAN BIJI KELOR TERHADAP PENURUNAN KADAR LOGAM KROMIUM (Cr), MANGAN (Mn), DAN TIMBAL (Pb) MENGGUNAKAN ICP-OES (THE ADDITION EFFECT OF KELOR SEEDS COAGULANT ON THE DECREASING OF CHROMIUM (Cr), MANGANESE (Mn), AND LEAD (Pb) LEVELS USING ICP-OES) Susvira, Dian; Ramadhan, Muhammad Bagus; Susparini, Ninik Triayu; Situmeang, Boima; Widiyanto, Holisha; Bialangi, Nurhayati; Musa, Weny JA
Indonesian Journal of Pure and Applied Chemistry Vol 7, No 1 (2024)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v7i1.63599

Abstract

Electroplating process has a negative effect in form metal ions waste. Today, industrial wastewater treatment widely using aluminum sulfate or alum as synthetic coagulants, although hazardous and expensive. This study was conducted to discover the activity of Moringa seeds (Moringa oleifera) as natural coagulants to substitute synthetic coagulants. Trapped metal ions detected by ICP-OES. The results showed that moringa seed coagulants could reduce 53% Cr, 64.56% Mn, and 92.89% Pb in the addition of 15 grams of moringa seed coagulants.
AKTIVITAS PENURUN KOLESTEROL DARI EKSTRAK N-HEKSANA DAUN BIDARA (ZIZIPHUS MAURITIANA) Lailatusholihah, Isna; Setyoko, Lintang Panji; Wijayanti, Sri; Situmeang, Boima; Musa, Weny JA; Bialangi, Nurhayati
CHEDS: Journal of Chemistry, Education, and Science Vol 7, No 2 (2023)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v7i2.8398

Abstract

Kolesterol, lipid penting untuk proses metabolisme, memegang peran penting dalam tubuh manusia. Namun, kelebihan kolesterol berpotensi menghambat fungsi otak secara optimal. Penelitian ini berupaya untuk meneliti ekstrak daun bidara, menggunakan pelarut n-heksana, dengan tujuan khusus untuk menilai kemanjurannya dalam mengurangi kadar kolesterol. Analisis fitokimia daun bidara mengetahui adanya alkaloid, steroid, dan tanin. Khususnya, kandungan senyawa fenolik yang melekat pada daun bidara muncul sebagai kandidat yang menjanjikan sebagai agen anti kolesterol. Temuan empiris ini memperkuat kemanjuran ekstrak daun bidara, yang memanfaatkan pelarut n-heksana, dalam menurunkan kadar kolesterol sebesar 70,4023%.
The Pirdot Leaves Extract (Saurauia vulcani Korth) As Natural Antioxidant to Inhibit Oxidation Reaction of Crude Palm Oil (CPO): Ekstrak Daun Pirdot (Saurauia vulcani Korth) sebagai Antioksidan Alami untuk Menghambat Reaksi Oksidasi pada Crude Palm Oil (CPO) Musa, Weny J A; Harianja, Lokky Sardomu; Sriwijayanti, Sriwijayanti; Yulianti, Nani; Situmeang, Boima
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4464

Abstract

The Pirdot plant (Saurauia vulcani Korth) is a wild plant that grows abundantly in tropical regions such as in North Sumatra. The active compounds found in Pirdot plant leaves are known to have good antioxidant activity. The aim of this research is to evaluate the n-hexane and methanol extracts of Pirdot plant leaves in inhibiting oxidation in crude palm oil (CPO). In this study, the Pirdot plant leaves were extracted using n-hexane (EHP) and methanol (EMP) solvents. The effectiveness of adding both extracts to the quality of CPO was tested for eight days using the parameters of free fatty acid content and peroxide value. The results of the effectiveness test for adding both extracts to CPO showed a good inhibitory effect on the oxidation reaction in CPO. The EMP extract at a concentration of 5000 ppm was more effective in maintaining the quality of CPO for 8 days, with a free fatty acid content of 3.09% and a peroxide value of 14.03 meq O2/kg.
Co-Authors Afriyandi, Adfin Anjulita, Ratna Asad, Hafidz Al Eko Setiawan Fauji, Fajar Rizki Harianja, Lokky Sardomu Humesi, Lusi iin Farlina, iin Julianti Julianti, Julianti Lailatusholihah, Isna Mahardika, Micha Masyhuri, Aga Adi Mohammad Rofik Usman Muhammad Akbar Musa, Weny J.A. Nani Yulianti Nasiro, Siti Ninik Triayu Susparini, Ninik Triayu Nurhayati Bialangi Pradana, Agrin Febrian Prastiwi, Dina Alva Puspita Sari Puspitasari Puspitasari Ramadhan, Muhammad Bagus Setyoko, Lintang Panji Sri Wijayanti Sriwijayanti Sriwijayanti, Sriwijayanti Suganda, Angga Susvira, Dian Wibowo, Arianto Widiyanto, Holisha