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PENINGKATAN KUALITAS MINYAK GORENG BEKAS DENGAN MENGGUNAKAN ADSORBEN ARANG AKTIF DARI AMPAS TEBU YANG DIAKTIVASI DENGAN NaCL Octarya, Zona; Fernando, Adhitya
Sistem Informasi Vol 6 No 02 (2016): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

This study uses activated carbon from bagasse as adsorbent by 75 mg in 200 grams of used cooking oil. Used oil is cooking oil that has been worn for 10 hours and comes from the restaurant industry. Activated carbon is made from leftover bagasse disposal is carbonized at a temperature of 600 oC for 2 hours and was activated by NaCl and 30 % test quality with iodine adsorption test. The test results of iodine adsorption test on activated carbon bagasse is 795,56 mg g and has met the SNI standard. The results showed that the peroxide used cooking oil, oil despicing results, the results of neutralization and bleaching results using bagasse activated charcoal in a row is 10,12 meq/kg, 8,62 meq/kg, 6,04 meq/kg, and 3,93 meq/kg. While the results of the determination of free fatty acids (FFA) on used cooking oil, despicing results, the results of neutralization and bleaching results using bagasse activated charcoal in a row is 2,4 %, 2,016 %, 0,88 % and 0,49 %. The results of the determination of peroxide and free fatty acids (FFA) has not met the quality standard of cooking oil (SNI), but is able to improve the quality of cooking oil.
PENGARUH JENIS PELARUT TERHADAP JUMLAH EKSTRAK DAN DAYA ANTIFUNGI DAUN KETEPENG CINA (CASSIA ALATA L.) TERHADAP JAMUR TRYCHOPHYTON SP Octarya, Zona; Saputra, Robi
Sistem Informasi Vol 5 No 2 (2015): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Ketepeng cina ( Cassia alata L. ) berasal dari daerah tropik Amerika dan biasanya hidup pada dataran rendah sampai pegunungan dengan ketinggian 1.400 meter di atas permukaan laut. Penelitian ini dilakukan untuk mengetahui pengaruh jenis pelarut terhadap jumlah ekstrak dan daya antifungi dari ekstrak daun ketepeng cina terhadap jamur Trychophyton sp.. Telah dilakukan penelitian yang meliputi pembuatan serbuk simplisia, skrining fitokimia, ekstraksi serbuk simplisia, dan uji aktivitas antifungi ekstrak daun ketepeng cina. Skrining fitokimia serbuk simplisia menunjukkan bahwa serbuk daun ketepeng cina mengandung senyawa flavonoid, alkaloid, antrakuinon, saponin dan tanin. Ekstraksi serbuk daun ketepeng cina dilakukan dengan metode refluks menggunakan pelarut etanol 70%, n-heksana dan aquades. Metode difusi agar dilakukan untuk mengetahui ekstrak terbaik serbuk daun ketepeng cina terhadap penghambatan pertumbuhan jamur Trychophyton mentagrophytes dengan meneteskan ekstrak dan sebagai pembanding digunakan antibiotik ketokonazol 2% dan kontrol negatif berupa pelarut. Hasil uji aktivitas antifungi menunjukkan ekstrak etanol daun ketepeng memberikan diameter zona bening yang paling besar dibandingkan dengan ekstrak n-heksana dan aquades dengan ukuran diameter zona bening rata-rata 20,06 mm.
SKRINING DAN IDENTIFIKASI BAKTERI TERMOFILIK PENGHASIL SELULASE DAN AMILASE DARI SUMBER AIR PANAS BUKIT KILI SOLOK SUMATERA BARAT DENGAN ANALISIS GEN 16S rRNA Octarya, Zona; Syukur, Sumaryati; RN, Endang Purwati
Sistem Informasi Vol 2 No 1 (2011): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Enzim termostabil dari bakteri termofilik merupakan enzim yang sangat potensial untuk mengatasi kendala teknis industri yang berhubungan dengan proses pada suhu tinggi. Salah satu sumber enzim adalah mikroorganisme termofilik yang banyak terdapat pada sumber air panas. Indonesia merupakan negara kepulauan yang banyak mempunyai sumber air panas, salah satunya adalah Kabupaten Solok. Penelitian ini mencakup skrining dan identifikasi bakteri penghasil enzim termostabil selulase dan amilase dari sumber air panas Bukit Kili Ketek di Kabupaten Solok. Suhu air panas adalah 52°C pada bulan Juni 2009 dan pH air adalah 8. Kultur murni yang diperoleh adalah sebanyak 22 kultur Dari hasil pewarnaan gram, diperoleh sebagian besar bakteri air panas adalah jenis bakteri streptobacilli (basilus) gram positif, hanya dua isolat yang merupakan gram negatif yaitu isolat S1B dan S5B. S2A adalah isolat yang mempunyai aktifitas selulase paling tinggi dibandingkan dari isolat yang lain karena mempunyai indeks zona bening selulase lebih tinggi yaitu 2,6. Isolat S2A juga menghasilkan amilase tinggi dengan indeks zona bening 2,5. Persen identitas bakteri air panas S2A yang diperoleh adalah 97% dengan Anoxybacillus flavithermus strain AE3.
Purifikasi Parsial Enzim Ekstraseluler (Anoxybacillus sp.) yang Diisolasi dari Sumber Air Panas Bukit Kili Solok serta Aplikasinya untuk Menghidrolisis Limbah Berserat Octarya, Zona; Syukur, Sumaryati; Purwati, Endang
Jurnal Natur Indonesia Vol 15, No 2 (2013)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.856 KB) | DOI: 10.31258/jnat.15.2.106-114

Abstract

Termostable enzyme from thermophilic bacteria is very potential to improve technical enzyme in industry which used hightemperature. High water temperature exerts selection pressure on microbial species leading to specific flora that survivesand tolerates heat stress. The relative isolation and unique physical properties of Bukit Kili Ketek Hot Springs in Solok,West Sumatera may yield unique thermophiles. The generation of extracellular enzymatic bacterial is highly desirable forproduction of hydrolitic enzymes, which are useful in various industrial application and in animal feeds. This study,conducted to purify extracellular enzymes from thermophilic bacteria (Anoxybacillus sp.). This bacteria was isolated inBukit Kili Ketek Hot Springs, and after identified by analysis of 16S rRNA gene, 97% of similiarty with Anoxybacillus sp.was of obtained. The temperature of the hot waters was 52°C and the pH was 8. Extracellular and hydrolytic enzymeproduction were screened by qualitative SDS-PAGE method. SDS-PAGE analysis gave protein bands at ±110 kDa, ±80 kDa,±60 kDa, 50 kDa, 25 kDa, and ±10 kDa, respectively. Extracellular enzymes were used to degrade cellulose waste. Thecellulose activity for degradation of baggasse and pineapple pulp was 0,451 IU/mL and 0,310 IU/mL at 50°C and pH 6.
Desain Uji Coba Kit Praktikum Sel Galvani Menggunakan Tomat (Lycopersicon esculentum) Pada Materi Elektrokimia Ningsih, Listia; octarya, zona
Konfigurasi : Jurnal Pendidikan Kimia dan Terapan Vol 4, No 2 (2020)
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/konfigurasi.v4i2.10500

Abstract

ABSTRAKDalam proses belajar mengajar peserta didik memiliki pemahaman yang rendah, media yang digunakan masih kurang bervariasi sehingga dibutuhkan suatu alat peraga berupa kit praktikum sel galvani menggunakan tomat. Tujuan dari penelitian ini adalah untuk mendesain kit praktikum sel galvani menggunakan tomat (Lycopersicon esculentum) sebagai media pembelajaran pada materi elektrokimia yang valid berdasarkan validitas ahli materi, ahli media, praktikalitas guru dan respon peserta didik. metode penelitian yang digunakan adalah Research and Development (R&D) dengan modifikasi model Brog and Gall di MA Pondok Pesantren Bahrul ‘Ulum Al-Islamy. teknik pengumpulan data yang digunakan dalam penelitian ini yaitu berupa wawancara, angket,  dan dokumentasi. kit praktikum sel galvani yang didesain memperoleh persentase kevalidan sebesar 87,71% yang berarti kit praktikum sel galvani dinyatakan sangat valid. persentase kepraktisan kit praktikum sel galvani yang diperoleh sebesar 89,61% yang dinyatakan sangat praktis dan mendapatkan respon yang baik dari peserta didik dengan persentase 92,06% dan hasil tersebut disimpulkan bahwa kit praktikum sel galvani menggunakan tomat (Lycopersicon esculentum) pada materi elektrokimia sudah valid, praktis dan mendapatkan respon yang baik dari peserta didik.Kata Kunci : Kit Praktikum, Tomat (Lycopersicon esculentum), Elektrokimia, Research and Development (R&D)
ANALISIS KEMAMPUAN PSIKOMOTORIK SISWA PADA PRAKTIKUM KIMIA LAJU REAKSI Fadhel, Muhammad; Fatisa, Yuni; Octarya, Zona
Journal of Chemistry Education and Integration Vol 3, No 2 (2024): Journal of Chemistry Education and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jcei.v3i2.32322

Abstract

AbstractPractical work as a form of learning activity is also part of a series of learning processes.  This research aimed at analyzing student psychomotor abilities in practical work on Reaction Rate lesson.  This research was carried out in the Academic Year of 2023/2024 at State Islamic Senior High School 2 Kampar on Reaction Rate lesson.  Quantitative descriptive method was used in this research. Purposive sampling was used in this research. The techniques of collecting data in this research were working assessment sheet, documentation, and interview to strengthen the data obtained.  The results of data analysis showed that the mean score of student psychomotor abilities was 72.37% with good category.  The highest mean score obtained was Creating indicator with the score 81.66% on good category, and the psychomotor ability with the lowest mean score was Manipulating indicator with the score 62.77% on good category.  The psychomotor sub-indicator with the highest mean score was Returning the practical work equipment with the score 100% on very good category, and the psychomotor sub-indicator with the lowest mean score was Delivering the practical work results with the score 47.91% on sufficient category.  Practical work learning could develop process skills, psychomotor skills, and scientific attitudes.Keywords: Psychomotor Abilities, Practical Work, Reaction Rate
Review: Aktivitas Antioksidan Daun Kelor (Moringa Oleifera) Fatisa, Yuni; Anggun Delia Fitri; Apruri, Azzahra Bellucci; Octarya, Zona
Photon: Journal of Natural Sciences and Technology Vol. 15 No. 2 (2025): Journal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v15i2.6675

Abstract

Free radicals are generated in the human body from normal metabolic processes. Apart from that, environmental factors such as UV, infrared and visible light, environmental pollution, including ozone and particulate matter and oxidative stress. The antioxidant system in the body is responsible for neutralizing or reducing the impact of free radicals in the body. If these free radicals exceed the body's antioxidant capacity, it will result in oxidative stress. There are many natural alternatives to ward off free radicals, one of which is Moringa leaves. Moringa leaves (Moringa Oleifera) are found in many tropical regions, one of which is Indonesia, where they have high antioxidant activity. The method used is a literature study which is reviewed one by one, after which the journals obtained are collected and the information is compiled by summarizing the contents of the journals used as sources. This article focuses on reviewing antioxidant phytochemical compounds and the level of antioxidant activity contained in Moringa leaves. The antioxidant compounds that are abundant in Moringa leaves are a group of flavonoid compounds, namely quercetin and kaempferol. The results showed that the highest antioxidant activity.
Sustainable solid soap production using recycled cooking oil with ecoenzyme and lemongrass extract Octarya, Zona; Yenti, Elvi; Utami, Lisa; Yusbarina
Acta Biochimica Indonesiana Vol. 8 No. 1 (2025): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.191

Abstract

Background: Improper disposal of used cooking oil poses significant environmental challenges, including groundwater contamination and harm to aquatic ecosystems. Recycling used cooking oil into solid soap offers a sustainable solution to reduce waste while creating a valuable, eco-friendly product. Objective: This study aims to produce solid soap from used cooking oil with the addition of ecoenzyme and lemongrass extract and evaluate its potential as an environmentally friendly and antimicrobial soap. Method: Used cooking oil was refined using bagasse as an adsorbent to remove impurities. Ecoenzyme was produced by fermenting organic kitchen waste, sugar, and water for three months, while lemongrass extract was prepared by blending and filtering lemongrass stalks. The soap was formulated by saponifying refined used cooking oil with NaOH, ecoenzyme, and lemongrass extract. The physical properties of the soap were assessed. Results: The resulting soap was solid, creamy in color, and emitted a refreshing lemongrass aroma. Antimicrobial properties are potential due to the organic acids and enzymes in the ecoenzyme, combined with the bioactive compounds in lemongrass extract. Conclusion: Solid soap made from used cooking oil with ecoenzyme and lemongrass extract offers a sustainable and effective solution for waste recycling while providing natural antimicrobial and cleaning benefits.
KESEHATAN DAN EKONOMI BERBASIS RUMAH TANGGA: PELATIHAN TEH KOMBUCHA SEBAGAI IMUNOMODULATOR DAN USAHA MANDIRI Octarya, Zona; Yenti, Elvi; Lazulva, Lazulva
COMMUNITY SERVICE JOURNAL OF ECONOMICS EDUCATION Vol 4, No 1 (2025): Community Service Journal Of Economic Education
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/csjee.v4i1.37069

Abstract

Health and economic self-reliance are two essential aspects in improving the quality of life, particularly for housewives in RT 05 RW 05, Lembah Sari Subdistrict, Rumbai Timur. This community service activity aimed to provide training in the production of kombucha probiotic drinks, which function as immunomodulators and have the potential to serve as an additional source of income. The method used was Participatory Action Research (PAR), which actively involved the community throughout the entire process—from problem identification to reflection on outcomes. The training was conducted in three main stages: planning, implementation, and evaluation. The results of the activity showed an increase in the housewives' understanding of the benefits of kombucha and their ability to produce the drink independently.
Metabolomic profiling and antimicrobial investigation of Aspergillus fumigatus LBKURCC269 and Bacillus paramycoides LBKURCC218 co-culture Octarya, Zona; Nugroho, Titania T.; Nurulita, Yuana; Suraya, Nabella; Saryono, Saryono
Narra J Vol. 5 No. 2 (2025): August 2025
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v5i2.1647

Abstract

The increasing resistance of pathogenic microbes to antibiotics is a major public health concern, necessitating the discovery of effective antimicrobial compounds. The aim of this study was to assess the bioactive metabolites produced by Aspergillus fumigatus LBKURCC269 and Bacillus paramycoides LBKURCC218 under three fermentation conditions: monoculture of each microorganism and their co-culture. Metabolite analyses initiated with gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-high-resolution mass spectrometry (LC-HRMS) followed with molecular networking–Global Natural Products Social Molecular Networking (GNPS) and molecular docking. Antimicrobial activity of the extracts was then conducted. Metabolite analysis using GC-MS identified key antimicrobial compounds, including 2,6-bis(1,1-dimethylethyl)-4-methylphenol, pentadecanoic acid, cyclopropane pentanoic acid, and 3-piperidinol. LC-HRMS, combined with multivariate analysis and GNPS molecular networking, revealed additional antimicrobial compounds, including novel pyrazine derivatives induced in co-culture fermentation. Molecular docking analysis of 3-(propan-2-yl)-octahydropyrrolo[1,2-a]pyrazine-1,4-dione demonstrated its potential as an antimicrobial agent by inhibiting topoisomerase IV and cytochrome monooxygenase with binding affinity of -5.34 kcal/mol and -5.6 kcal/mol, respectively. The antimicrobial assays showed that the co-culture fermentation extract had the strongest activity, with inhibition zones of 20.33±0.59 mm (Escherichia coli), 14.33±0.59 mm (Staphylococcus aureus), and 25.67±0.59 mm (Candida albicans). This study highlights the advantages of co-culture fermentation in enhancing the discovery of antimicrobial compounds. The findings underscore the potential of this approach to simplify chemical isolation and accelerate the identification of novel antimicrobial agents for pharmaceutical development.