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Bahruddin Bahruddin
Universitas Riau
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PENGARUH PUPUK ORGANIK PADAT DAN BERBAGAI KONSENTRASI PUPUK BIO-ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PAKCOY (Brassica rapa L.) Fadhila Nursyifa; Bahruddin; Muhammad Anshar
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 14 No 3 (2026): Juni
Publisher : Fakultas Pertanian, Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/cvb10s41

Abstract

Pakcoy (Brassica rapa L.) merupakan salah satu jenis sayuran yang banyak digemari masyarakat karena memiliki kandungan gizi yang tinggi, harga cenderung murah serta membutuhkan waktu panen yang singkat sehingga memiliki prospek yang sangat baik. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk bokashi kotoran sapi dan berbagai konsentrasi Pupuk Bio-Organik Cair Herbafarm terhadap pertumbuhan dan hasil tanaman pakcoy. Penelitian ini dilaksanakan di Desa Oloboju Kecamatan Sigi Biromaru, Kabupaten Sigi. Pada bulan Oktober 2022 sampai Januari 2023. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) 2 faktor. Faktor pertama adalah dosis pupuk bokashi sapi, yang terdiri dari 2 taraf yaitu 0 t/ha dan 20 t/ha. Faktor kedua dosis Pupuk Bio-organik Cair Herbafarm yaitu 0 ml/l air, 5 ml/l air, 10 ml/l air, 15 ml/l air, dan 20 ml/l air, dengan demikian terdapat 10 kombinasi perlakuan yang diulang sebanyak 3 kali ulangan sehingga terdapat 30 bedengan dan masing-masing perlakuan terdiri dari 50 unit tanaman. Data yang diperoleh dianalisis dengan analisis keragaman (ANOVA), apabila ada perlakuan yang berpengaruh akan dilanjutkan uji Beda Nyata Jujur (BNJ) taraf 5 %. Hasil penelitian menunjukkan Interaksi antara Bokashi Kotoran Sapi 20 ton/ha (P1) dan pemberian Pupuk Bio-organik Cair Herbafarm 20 ml/liter air (K4) terhadap jumlah daun pada umur 25 HST. Pemberian Pupuk Bokashi Kotoran Sapi 20 ton/ha (P1) memberikan pengaruh nyata terhadap parameter berat segar tajuk, berat segar akar, kehijauan daun, dan total luas daun. Pemberian Pupuk Bio-organik Cair Herbafarm berpengaruh nyata terhadap berat segar tajuk, berat segar akar dan total luas daun. Konsentrasi pupuk bio-organik cair 20 ml/l air (K4), menunjukkan hasil yang terbaik dibanding dengan konsentrasi lainnya.
PENGEMBANGAN PEMBANGKIT BIOGAS UNTUK MEWUJUDKAN DESA MANDIRI ENEGI DI DESA BATUBELAH KABUPATEN KAMPAR PROPINSI RIAU Adrianto Ahmad; Bahruddin; Zuchra Helwani; Lita Darmayanti; Khairat; Sri Rezeki Muria; Sri Helianty
BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Vol. 5 No. 2 (2025): BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Desember 2025
Publisher : LPPM UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/bhakti_nagori.v5i2.4955

Abstract

Program bantuan sapi untuk masyarakat di Kabupaten Kampar Propinsi Riau telah didistribusikan sedemikian rupa, dengan sendirinya akan menghasilkan limbah padat berupa kotoran sapi. Kotoran sapi diolah menggunakan proses anaerob akan menghasilkan biogas. Potensi biogas yang diperoleh dapat digunakan sebagai sumber energi. Berdasarkan pengabdian terdahulu tahun 2023 telah teridentifikasi sebanyak 107 ekor sapi dari 30 peternak sapi dan telah dibangun unit pembangkit biogas sebanyak 6 unit, setiap unit mempunyai kapasitas 1500 L yang diumpan dengan kotoran sapi sebesar 250 L/hari sehingga menghasilkan biogas sebesar 1.080 L/hari. Biogas tersebut dapat dikonversi menjadi energi bakar yang dapat digunakan sebagai bahan bakar kompor rumah tangga pengganti gas LPG. Pengabdian ini dilakukan dalam dua tahap yakni melalui WORKSHOP dan PRAKTEK LAPANGAN. Pada WORKSHOP dan PRAKTEK LAPANGAN diikuti oleh 30 peserta yang berasal dari kelompok peternak sapi. Hasil pengabdian menunjukkan bahwa api yang dihasilkan berarna biru dan dapat digunakan untuk memasak.
Optimasi Derajat Grafting Stiren Akrilik pada Molekul Poli Isoprena Karet Alam untuk Pembuatan Cat Emulsi Briliantina Rossa; Syelvia Putri Utami; Bahruddin Bahruddin
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 7 No 1 (2026): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.7.1.1-12

Abstract

Natural rubber modified through graft copolymerization offers improved compatibility and performance for water-based coating applications. This study investigates the optimization of grafting efficiency of styrene–acrylate onto natural rubber latex using a free-radical mechanism. Three processing variables—dry rubber content, styrene–acrylate concentration, and binder proportion—were evaluated using Central Composite Design within the Response Surface Methodology framework. The grafting process was carried out at 60 degrees Celsius for 210 minutes, followed by gravimetric analysis to determine the degree of grafting. Experimental results showed that dry rubber content exerted the most significant effect on grafting efficiency, while styrene–acrylate and binder levels contributed secondary but supportive influences. The response surface model demonstrated strong predictive capability, with an average prediction error of 2.84 percent. Optimal conditions were achieved at 60 percent dry rubber content, 10 percent styrene–acrylate, and approximately 19.7–20 percent binder, yielding a grafting degree of 63.32–64.11 percent in prediction and 64.23–67.21 percent in experimental validation. These findings confirm the effectiveness of controlled grafting to enhance polymer–monomer interactions and improve the performance of natural-rubber-based binders. The optimized grafted latex shows potential for industrial applications in waterborne coatings requiring strong adhesion, improved wash resistance, and stable film properties.
Pengaruh Glukomanan dalam Perekat Berbasis Polyvinyl Acetate Terhadap Kuat Rekat Kayu Wahyu Suci Rahmani; Bahruddin Bahruddin; Syelvia Putri Utami
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 7 No 1 (2026): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.7.1.33-43

Abstract

Polyvinyl acetate adhesive is widely used in the wood industry; however, its application still relies heavily on synthetic materials. Therefore, modification of polyvinyl acetate with glucomannan was conducted to enhance bonding strength while reducing the use of synthetic adhesives. This study aimed to analyze the effects of glucomannan concentration in the gel, glucomannan gel content, and polyvinyl alcohol content on the bonding strength of wood adhesives, as well as to determine the optimum formulation conditions. The experimental design was conducted using Box Behnken Design with 17 experimental runs, and optimization was performed using Response Surface Methodology. Glucomannan gel was blended with polyvinyl acetate and polyvinyl alcohol, followed by testing of dry bonding strength, wet bonding strength, and total solid content. The results showed that increasing glucomannan concentration in the gel decreased bonding strength, while increasing glucomannan gel content enhanced bonding strength up to an optimum level and declined at higher concentrations. The addition of polyvinyl alcohol significantly improved the bonding strength of glucomannan–polyvinyl acetate-based adhesives. The optimum conditions were obtained at a glucomannan concentration in the gel of 10% (w/w), glucomannan gel content of 31.38% (w/w), and polyvinyl alcohol content of 3.73% (w/w), resulting in a dry bonding strength of 16.97 MPa, wet bonding strength of 5.44 MPa, and TSC of 39.88%.
Pengaruh Organic Loading Rate (OLR) Tepung Porang terhadap Kinetika Pertumbuhan mikroorganisme Anaerobik Hotnida Butar Butar; Adrianto Ahmad; Bahruddin Bahruddin
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 7 No 1 (2026): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.7.1.44-53

Abstract

Initial substrate concentration (S0) governs the balance between substrate availability, microbial growth, and biomass decay in anaerobic digestion systems. From a bioprocess engineering perspective, inappropriate initial organic load selection leads to misinterpretation of reactor performance when evaluation relies solely on macroscopic indicators. This study applies a Monod-decay kinetic framework to systematically analyze microbial responses to varying initial organic load of konjac flour in batch anaerobic reactors. Initial substrate concentration was modified by adjusting substrate concentration while maintaining identical operational conditions to ensure model consistency. Times-series data of COD, VSS, VFA, alkalinity, and pH were used for parameter estimation through nonlinear regression. Model fitting demonstrated that incorporation of biomass decay significantly improved representation of experimental dynamics, particularly under elevated to initial organic load conditions. Although higher initial organic load increased apparent organic conversion, kinetic parameters revealed a shift toward maintenance-dominated metabolism, reflected by elevated decay coefficients and diminished effective growth rates. Conversely, intermediate initial organic load provided an optimal kinetic window characterized by stable substrate affinity and lower decay intensity. These results confirm that yield formation and COD partitioning are governed by kinetic constrains rather than substrate availability alone. The study highlights the necessity of decay-inclusive models for accurate interpretation and rational design of anaerobic bioprocesses operating under variable organic load.
Pengaruh Variasi Delignifikasi NaOH dan Variasi Hidrolisis H2SO4 Terhadap Produksi Bioetanol dari Limbah Umbi Porang Menggunakan Saccharomyces cerevisiae Toety Marliaty; Adrianto Ahmad; Bahruddin Bahruddin
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 7 No 1 (2026): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.7.1.54-66

Abstract

Second-generation bioethanol from non-food biomass requires pretreatment and hydrolysis conditions that increase fermentable sugar release while keeping the hydrolysate suitable for fermentation. This study evaluated the effects of NaOH delignification (1–2% v/v) and dilute H₂SO₄ hydrolysis (0.25–0.75% v/v) on sugar formation and ethanol production from porang tuber waste using Saccharomyces cerevisiae. Porang chips (60 mesh) were pretreated at 100°C for 60 min at a 1:10 (w/v) solid-to-liquid ratio, washed to near-neutral pH, and subsequently hydrolyzed at 100°C for 60 min at 1:20 (w/v). Structural carbohydrates were quantified by the Chesson–Datta method, reducing sugars by UV–Vis spectrophotometry, and ethanol by distillation followed by refractometry. NaOH at 1.5% resulted in the most favorable compositional change, increasing cellulose to 55.3% and reducing lignin to 7.0%. The highest initial glucose in the hydrolysate (41.22 g/L) and the best ethanol performance were obtained at NaOH 1.5%–H₂SO₄ 0.5%, reaching 8.62 g/L ethanol, a yield (Yp/s) of 0.434 g/g, and 85.0% of the theoretical yield. Overall, within the tested NaOH–H₂SO₄ ranges, moderate pretreatment and hydrolysis levels provided a practical balance between sugar release and fermentation performance at bench scale. Measurement variability and uncertainty (replicates and dispersion metrics) are reported in the Results to support the observed trends
Evaluation Of The Performance Of Fatty Acid Methyl Ester (Fame) As An Alternative Solvent In Alkyd Resin-Based Paints Arya Wiranata; Bahruddin Bahruddin; Zuchra Helwani; Heni Sugesti; Yogi Chandra; Hasrul Hasrul; Trisuciati Syahwardini; Ni putu Vidya Primarista
LAVOISIER: Chemistry Education Journal Vol 5, No 1 (2026)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v5i1.20037

Abstract

The use of conventional solvents in the oil paint industry often leads to volatile organic compound (VOC) emissions and toxicity, so this study aims to evaluate the potential of Fatty Acid Methyl Ester (FAME) as an environmentally friendly alternative solvent. FAME is synthesised from vegetable oil through a transesterification reaction, then formulated into alkyd resin-based paints with varying binder content (40%, 50%, and 60%) to be compared with acetone solvent. The paint performance evaluation includes tests on drying time, gloss level, hiding power, and Whiteness and Yellowness Index. The results show that FAME-based paints have a much higher gloss level (10–26 GU) than acetone (3–6 GU) because their slower evaporation rate provides optimal levelling time, though this results in much longer drying time, namely 780–819 minutes. In addition, FAME has been proven to produce better covering power and a lower Yellowness Index (1.39–4.15) than acetone (4.09–5.74). This superiority is influenced by the nature of FAME, which minimises damage to the polymer binder and uniformly disperses pigments, preventing agglomeration. Overall, FAME has great potential as a sustainable paint solvent that can improve optical and physical properties, although its formulation still requires optimisation to accelerate drying.
OPTIMASI PROSES PEMUTIHAN ACACIA KRAFT PULP DENGAN PROSES BIOBLEACHING SEBELUM CHEMICAL BLEACHING UNTUK MENGURANGI PEMAKAIAN BAHAN KIMIA Amrizal; Adrianto Ahmad; Bahruddin
Jurnal Sains dan Teknologi Vol 15 No 1 (2016): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Proses pemutihan pulp dengan enzim (Biobleaching) sebelum pemutihan dengan bahan kimia membantu menurunkan konsumsi bahan kimia pemutih (ClO2). Penelitian ini bertujuan untuk mengetahui kondisi optimum proses biobleaching terhadap kenaikkan derajat kecerahan pulp, pengaruhnya terhadap konsumsi ClO2 dan kualitas pulp serta dampaknya terhadap lingkungan. Sampel kraft pulp, terbuat dari campuran kayu acacia mangium, acacia crassicarpa dan eucalyptus. Enzim yang digunakan xylanase dengan aktivitas enzim sebesar 5000 IU/ml. Variabel proses terdiri dari waktu (X1), suhu (X2), pH (X3), dan dosis enzim (X4). Optimasi dilakukan pada berbagai variasi waktu (30, 60, 120, 180) menit, suhu (60, 70) oC, pH (4, 5, 6, 7, 8), dan dosis (0,2, 0,5, 1,0) kg/ton pulp dimana biaya enzim dan bahan kimia sebagai faktor kendala. Hasil penelitian menunjukkan bahwa pH dan dosis enzim merupakan faktor signifikan yang berpengaruh terhadap kenaikan derajat kecerahan pulp. Hubungan antara kenaikkan derajat kecerahan (Y) terhadap pH dan dosis enzim ditunjukkan dengan persamaan Y = 0,792+0,576X3+0,688X4. Kondisi optimum biobleching diperoleh pada pH 8 dan dosis enzim 0,142 kg/Ton pulp dimana kenaikkan derajat kecerahan adalah sebesar 5,5%. Konsumsi ClO2 turun 15,2% dan kadar AOX turun 30% dibandingkan proses tanpa enzim. Kekuatan tarik pulp menunjukkan kenaikkan dari 64,2 N/m2 menjadi 65,2 N/m2 .
OPTIMASI PROSES PEMUTIHAN ACACIA KRAFT PULP DENGAN PROSES BIOBLEACHING SEBELUM CHEMICAL BLEACHING UNTUK MENGURANGI PEMAKAIAN BAHAN KIMIA Amrizal; Adrianto Ahmad; Bahruddin
Jurnal Sains dan Teknologi Vol 15 No 2 (2016): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Proses pemutihan pulp dengan enzim (Biobleaching) sebelum pemutihan dengan bahan kimia membantu menurunkan konsumsi bahan kimia pemutih (ClO2). Penelitian ini bertujuan untuk mengetahui kondisi optimum proses biobleaching terhadap kenaikkan derajat kecerahan pulp, pengaruhnya terhadap konsumsi ClO2 dan kualitas pulp serta dampaknya terhadap lingkungan. Sampel kraft pulp, terbuat dari campuran kayu acacia mangium, acacia crassicarpa dan eucalyptus. Enzim yang digunakan xylanase dengan aktivitas enzim sebesar 5000 IU/ml. Variabel proses terdiri dari waktu (X1), suhu (X2), pH (X3), dan dosis enzim (X4). Optimasi dilakukan pada berbagai variasi waktu (30, 60, 120, 180) menit, suhu (60, 70) oC, pH (4, 5, 6, 7, 8), dan dosis (0,2, 0,5, 1,0) kg/ton pulp dimana biaya enzim dan bahan kimia sebagai faktor kendala. Hasil penelitian menunjukkan bahwa pH dan dosis enzim merupakan faktor signifikan yang berpengaruh terhadap kenaikan derajat kecerahan pulp. Hubungan antara kenaikkan derajat kecerahan (Y) terhadap pH dan dosis enzim ditunjukkan dengan persamaan Y = 0,792+0,576X3+0,688X4. Kondisi optimum biobleching diperoleh pada pH 8 dan dosis enzim 0,142 kg/Ton pulp dimana kenaikkan derajat kecerahan adalah sebesar 5,5%. Konsumsi ClO2 turun 15,2% dan kadar AOX turun 30% dibandingkan proses tanpa enzim. Kekuatan tarik pulp menunjukkan kenaikkan dari 64,2 N/m2 menjadi 65,2 N/m2 .
Co-Authors Ade Putra Ade Rahayu Putri Adhy Prayitno Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Ady Maulana Afrianti, Dwi Afrila Afrila Afrilianti, Azyarah Afrilla, Nurul Ahmad Fadli Ahmad Fadli Ahmad Riadi S Hasibuan Aidil Akbar Akbar, Anif Aulia Alfian Malik Almasdi Syahza Alumni STIKES Husada Borneo Ambtenarie Jessica Sihombing, Ambtenarie Jessica Aminuyati Amir Hamzah Amrizal Amrizal ' Amun Amri Andreas Sahat Parsaulian Andri Mulia Angelina Angelina Anugerah Rifaldi Aras Mulyadi Aris Aprianto Cahyono Artha, Ulfa Dwi Arya Wiranata Arya Wiranata Arya Wiranata Bramansyah Riswanda Briliantina Rossa Cindy Oktaviani Damayanti, Elok David Andrio Deliana, Putri DESI PURNAMA SARI Dewi Maya Sari Dian Anggraini Purba Dian Eka Indriani Djaimi Bakce Donny Kurniawan Dwifirman, Widya Edi Saputra Efriyeldi, Efriyeldi Ekawati, Lestari Endro Siswoko Eri Malindo Fachry Abda El Rahman Fadhila Nursyifa Fadli, A Fauzi, Subehan Firdaus Septiawan Fitra Annisa Gede Wibowo Gunawan Gunawan Hamsar Hamsar Handayani, K.H Sri Hara Novarisa Nanda Hasrul Hasrul Hendri, Zwilla Oktoriana Heni Sugesti Herlili Peronika Herry Novriansyah Hotnida Butar Butar HS, Irdoni. Ida Zahrina Idral Amri Idral Idral Irdoni HS Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Isra, Muhammad Ivan Fadhillah Ivan Fadhillah Jabosar Ronggur Hamonangan Panjaitan Jahrizal Khairat Khairat, Khairat Khairat, Khairat KRISTINA WIJAYA Liendra Juniarti Lita Darmayanti Lubis, Abdillah Lubis, Apriadi Luci Octaria Lusiana Sri Wahyuni M. Iwan Fermi Maradona Maradona Mariatul Qiftiah Melda Helena S Melly Anggraeni Mery Christina Meysara Meysara MS, Frasucia Aquaviva Muchlis Ade Putra Mudinillah, Adam Muhammad Anshar Muhammad Muhammad Muhammad Muhammad Muhammad Nasri Katman Muhammad Nur Muhammad Reza Muhammad Rivai Nadimisia, Tiara Dwisca Ni putu Vidya Primarista Nirwana Nirwana Nonot Suwarno Nopi Andri Musfa, Nopi Andri Novriyani, Vivi Nurazizah Nurazizah, Nurazizah Nurhidayah Nurhidayah Nurul Aini Thaibil Fadhly ojsadmin Oktaviani, Cindy Pakpahan, Cindy Peji Nopeles Puskesmas Guntung Payung R Firmansyah Rani Yuliantari Razita Hariani Rina Gunarti Rizky Sandy Harahap Robby Kumar Robby Kumar Romfis, Dio Rosmawati, Putri Roy Marthin Panjaitan Rozanna Sri Irianty RS Khusus Bedah Siaga Banjarmasin Russita Martani Russita Martani Septian, Septian Septiana Veronika S Septiana Veronika s, Septiana Veronika Shaleh, Idries Hamidi Siti Sakinah Sonny Wijaya Sri Helianty Sri Helianty Sri Rezeki Muria Sri Rezeki Muria STIKES Husada Borneo Sudirman Sudirman Sugesti, Heni Sumarno Sumarno Sunardjo SUSANTO, RENO Susanty, Wenny Suwondo Suwondo Syahwardini, Trisuciati Syamsu Herman Syarfi Daud Syarfi, Syarfi Syarfie, Syarfie Syelvia Putri Utami Syelvia Putri Utami Syelvia Putri Utami Syoffinal Syoffinal Thamrin Thamrin Toety Marliaty Trisuciati Syahwardini Trisuciati Syahwardini Trisuciati Syahwardini Umar Umar Ummy Aisyah Rochaeni Viodita Rizki Vivi Novriyani W, Ririen Wahyu Suci Rahmani Wahyu Suci Rahmani Wenny Susanty Wira Bima Stevent Sembiring Wira Irawan Rossani Wiranata, Arya Yanny Sartika Yelmida Azis Yoga Deswan Suwary Yoga Pratama Yogi Chandra Yolanda, Putri Gusti Yulia, Indri Yunus, Aulia Yusnila Halawa Zainal Abidin Zuchra Helwani Zul Amraini, Said Zuliarti, Indah Zultiniar Zultiniar Zultiniar, Zultiniar