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Yelmira Zalfiatri
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KUALITAS PAPAN PARTIKEL DARI LIMBAH SERABUT KELAPA SAWIT DENGAN PEREKAT DAMAR Riza Fahlevi; Farida Hanum Hamzah; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Palm fiber is a waste of crude palm oil processing that has not been used optimally. This study aims to obtain the best resin adhesive concentration in the manufacture of particleboard from palm oil fibers. The research was conducted experimentally using a completely randomized design (CRD) with 5 treatments and 3 replications. The treatment in this study was the ratio of oil palm fiber and resin adhesive as follows: P1 (90: 10), P2 (88: 12), P3 (86: 14), P4 (84: 16), P5 (82: 18). The data obtained were analyzed statistically using Analysis of Variance (ANOVA) and Duncan New Multiple Range Test (DNMRT) at the 5% level. The results showed that the composition of oil palm fiber and resin adhesive had a significant effect on density, water content, water absorption, thickness expansion, modulus of elasticity, and modulus of rupture. The best treatment chosen was treatment P5 with a density value of 0.93 g/cm3, water content of 4.49%, water absorption 54%, thickness development 37%, modulus of elasticity of 1283.47 kgf/cm2, modulus of lift 13.03 kgf/cm2. Keywords: Particle board, oil palm fiber, resin adhesive 
Peningkatan Produktivitas Pulp dan Kertas dengan Pendekatan Green Productivity PT. Riau Andalan Pulp And PaperKabupatenPelalawan Fakhruni Alisya; Farida Hanum Hamzah; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The increase of consumer demand for pulp and paper encourage PT. Riau Andalan Pulp and Paper to be able to improve its production and performance in order to compete with other similar companies. However, along with the enhancement in production, it also increase the amount of waste generated. The increasing amount of waste due to the increased of production capacity encourages PT. Riau Andalan Pulp and Paper to minimize production waste by using a method called green productivity in order to improve the environmental performance. Based onresearch done in PT. Riau Andalan Pulp and Paper, there are two alternative solutions to minimize waste that also improve the productivity and environmental performance which was to burn the sludge produced from IPAL and to produce fertilizer from IPAL sludge. However, the green productivity index of the first alternativewas biggerthan the second alternative which is 3,98. The chosen alternative was toburn the sludge produced from IPAL to the power boiler. This solution increased productivity, where the initialproductivity was2,31 to 2,43. The chosen alternative solutions may improve the environmentalperformance indicator from 0,59to0,61.Keywords:   green productivity, productivity, environmental performance indicator, PT. Riau Andalan Pulp and Paper
PEMANFAATAN TEPUNG KACANG MERAH DAN PATI SAGU PADA PEMBUATAN CRACKERS Weni Mulyani Asfi; Noviar Harun; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research was to the best obtain the ratio of red bean flour and sago starch selected in the making of crackers. This research used Complete Randomized Design (CRD) with 6 treatments and 3 replications which were followed by Duncan’s New Multiple Range Test (DNMRT) at level 5%. The treatments in this research included K0S0 (ratio of red bean flour and sago starch 100 : 0), K1S1 (ratio of red bean flour and sago starch 90 : 10), K2S2 (ratio of red bean flour and sago starch 80 : 20), K3S3 (ratio of red bean flour and sago starch 70 : 30), K4S4 (ratio of red bean flour and sago starch 60 : 40), and K5S5 (ratio of red bean flour and sago starch 50 : 50). The result of analysis showed that the ratio of red bean flour and sago starch significantly affect on water content, ash content, protein content, and sensory test. The best treatment crackers was K5S5 with water content (2,33%), ash content (2,18%), protein content (8,57%), and sensory test with colour of yellowish brown, flavorful red beans and sago starch, a little taste of red beans and sago starch, crunchy texture, and overall assesment of crackers was  preferred by the panelist. Keywords: crackers, red bean flour and sago strach
Peningkatan Skala Percobaan (Scale Up Experiment) Pengolahan Limbah Cair Kilang Sagu secara Aerobik menggunakan Teknologi Simbiosis Mutualisme Mikroalga Chlorella sp. dan Agrobost Khairunnisa Amanda; Fajar Restuhadi; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research was to get selected treatment of microalgae Chlorella sp. as a reducing polutan of sago liquid waste with the concentration of Agrobost and utilize symbiotic technology between the two.  This research used a complete randomized design (CRD) with 5 treatments and 3 replications.  In this research was microalgae 800 ml/L (6.110.000 cell/ml) of sago liquid waste with 5 treatments of Agrobost (0% v/v, 2% v/v, 4% v/v, 6% v/v, and 8% v/v).  The data obtained were analyzed statistically using ANOVA and DNMRT at 5 % level.  The result showed that the concentration of Agrobost had significant affect for Nitrate, Phosphate.  The treatment chosen from the result of this research was the P4 treatment showed the highest level of reduction which had the value Phospate 3,16 mg/L, Nitrate 0,3601 mg/L. Keywords: Sago liquid waste, Agrobost, microalgae Chlorella sp.
KAJIAN SIFAT FISIKO-KIMIA TEPUNG AMPAS TAHU DITINJAU DARI LAMA PERENDAMAN DALAM NATRIUM METABISULFIT (Na2S2O5) DAN LAMA PENGERINGAN Rahot Manto Sinaga; Netti Herawati; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research is to obtain the best combination of treatments between the soaking time of sodium metabisulfite (Na2S2O5) and the drying time of the physico-chemical of tofu pulp flour. This research was conducted with nine treatment combinations and three replications. The treatment used was soaking time (L) and drying time (P). L1P1 (15 minutes, 3 hours), L1P2 (15 minutes, 4 hours), L1P3 (15 soaking, 5 hours), L2P1 (30 minutes, 3 hours), L2P2 (30 minutes, 4 hours), L2P3 (30 minutes, 5 hours), L3P1 (45 minutes, 3 hours), L3P2 (45 minutes, 4 hours), L3P3 (45 minutes, 5 hour). The treatments of selected in this research was L3P1 with  water content of 6.47 %, ash content of 1.92 %, protein content of 17.03 %, and sensory assessment produced a rather white color with a score of 3.77, the aroma was rather unpleasant with a score of 3.07, and a rather subtle texture with a score of 3.60.
Pemanfaatan Sekam Padi dan Kulit Batang Sagu terhadap Mutu Briket dengan Perekat Tapioka Yasa Rudin; Raswen Efendi; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Briquette is a biomass fuel. Biomass has the potential and benefits of being an alternative energy source to replace fossil fuels that exist today, biomass has an abundant stock or supply.The biomass used in this study was rice husk and sago steam bark. This study used a completely randomized design with a sample of four and four replications. The treatment was against the ratio of rice husk and sago bark 75:25, 50:50, 25:75, and 0: 100.). Data were statistically analyzed using anova andduncan’s new multiple range test (DNMRT) at 5% level. The results showed that the ratio of rice husk and bark significantly affected moisture, ash, density, rainfall density, fuel, and volatile material. The selected treatment in this researchrice husks and sago bark 25:75 with density of 0.500g/cm3, moisture content 5.913%, ash content 7.352%, evaporation content 2.582 %, carbon content can be used 84.152%, the heating value is 6604.630 cal/g, and the fuel power is 0.003 g/sec.  Keywords: Briquette, rice husk, sagosteam bark
PEMANFAATAN TEPUNG BIJI DURIAN DAN TEPUNG KACANG HIJAU DALAM PEMBUATAN FLAKES Luky Prasetyo; Akhyar Ali; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aimed to get the best ratio of durian seed flour and mung bean flour judging from the content of nutrients and organoleptic tests in making of flakes. The research was conducted with an experimental method using a Completely Randomized Design with five treatments and three replications. The treatments in this study were ratio of durian seed flour and mung bean flour 100%:0%, 90%:10%, 80%:20%, 70%:30%, and 60%:40%. Data were statistically analyzed by using Analysis of Variance and followed by Duncan's New Multiple Range Test at level 5%. Results of the analysis showed that ratio of durian seed flour and mung bean flour significantly affected on moisture, ash, fat, protein, carbohydrate, and crude fiber content as well as descriptive and hedonic sensory test of the flakes. Based on this research, the best treatment was ratio of durian seed flour and mung bean flour 60%:40% which had moisture 4.28%, ash 3.51%, fat 1.29%, protein 10.45%, carbohydrate 80.46% and crude fiber 2.96%. Characteristics flakes of best treatment based on descriptive test was  golden yellow color, mung bean flavor, mung beantaste, andhard texture. Keywords:Flakes, durian seed flour, mung beanflour.
Karakteristik Briket Arang Sekam Padi dengan Penambahan Arang Cangkang Biji Karet Ishak Alhafis; Raswen Efendi; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research was the to best quality briquettes from a combination of rubber seed coals and rice husk charcoal. The treatments used were the different composition of rice husk charcoal with rubber seed shell charcoal, K1 (90% rice husk charcoal:10% rubber seed shell charcoal), K2 (80% rice husk charcoal:20% rubber shell charcoal), K3 (70 % rice charcoal husk:30% rubber seed shell charcoal), K4 (60% rice husk charcoal:40% rubber seed shell charcoal), and K5 (50% rice husk charcoal:50% rubber seed shell charcoal).Data obtained were analyzed using analysis of variance and followed by Duncan’s Multiple Range Test at 5% level. The best treatment is charcoal charcoal briquettes K5(50% rice husk charcoal:50% rubber seed shell charcoal) has a water content of 3.1085%, ash content 17.0099%, density content 1.1842 g/cm3, crushing strength content 0.0127 kg/cm2, calorific value of 5403.1761 kal/g, level of volatile matter32.0165%, and bound carbon content of 47.8651%.Keywords:briquettes, charcoal rice husk, rubber seed shell charcoal
Perbedaan Ukuran Partikel Terhadap Kualitas Briket Arang Batang Pisang Erizal Thoyeb; Farida Hanum Hamzah; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Banana stem contain beneficial compounds hemicellulose, cellulose and lignin which is quite high but has not been utilized optimally. This research aims to utilize banana stems as the main ingredient in making charcoal briquettes and get good quality briquette formulations. The study was conducted experimentally using a complete randomized design method consisting of 5 treatments and 3 replications to get 15 expremintal unitsand continued with Duncan’s New Multiple Range Test (DNMRT) at level 5%. The treatments in the study were particle size differences as include: 20 mesh, 40 mesh, 60, mesh, 80 mesh and 100 mesh. The parameters observed in this study were water content, vapour content, ash content, bound carbon content, density, fueled power and calorific value. The result of analysis of variance showed that the particle size charcoal dry banana stem had a significant effect on were water content, vapour content, ash content, bound carbon content, density, fueled power and calorific value. Selected treatment was 40 mesh which has water content 5.67%, vapour content 19,49%, ash content 17,66%, bound carbon content 57,17%, density 0.51g/cm3, fueled power 59x10-4 g/sec and calorific value 5304.13 cal/g.Keywords:briquettes, dry banana stem, particle size
RASIO SUSU FULL CREAM DAN MINYAK SAWIT MERAH PADA PEMBUATAN ES KRIM UBI JALAR KUNING (Ipomea batatas L.) Muhaiminati Adlina; Netti Herawati; Yelmira Zalfiatri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Ice cream is a semi-solid food made by freezing a mixture of milk, fats of animal and vegetable, sugar, and other foodstuffs. This study aims to get the best ratio between full cream milk and red palm oil. This research used a Complete Randomized Design (CRD) with four treatments and four replications. The treatment were ratio of full cream milk : red palm oil 100:0 (E0), 97:3 (E1), 94:6 (E2), 91:9 (E3). The data were statisticallyanalyzed using Analysis of Variance (ANOVA) and Duncan's New Multiple Range Test (DNMRT) at 5%. The research observed was overrun, melting rate, total solids, protein content, fat content, and sensory test. The best treatment of ice cream from this research was E2 which have overrun 23.45%, melting rate 12.47 minutes, total solids 33.01%, fat 5.17%, and protein 2.82%.The result of ice cream’s descriptive assesment testwere  yellow colour (2.83), taste sweet (2.50), slightly flavour red palm oil (3.33), and texture creamy (2.26). Overall assessment hedonic  test of ice cream was preferred by the panelists. Keywords : Ice cream, full cream milk, red palm oil 
Co-Authors Adeline Palma Sari Agus Sutikno Ahmad Ibrahim Ahmad Ibrahim Roni Surya Hasibuan AINIL HIFDA DAULAY Akhyar Ali Andesmar Andesmar Angelia Angelia Angga Pramana Angga Pramana Angga Pramana, Angga Anjani Winursito Anne Mudya Yolanda Annisa Nazifa Salman Antoni, Fiki Fadel AR, Nur Hasnah bema, eykel sura Candra Efendi Hasibuan Carles Pernando Chandra Gunawan Chandra, Rani DAULAY, AINIL HIFDA Dewi Fortuna Ayu Dewi, Yossi Kharisma Dewi, Yossie Kharisma Dinda Yusra Danil Dini Aji Pringgondani Eko Herianto Eko Wahyudi EKO WAHYUDI Endyra, Fadlila Erizal Thoyeb eykel sura bema FADLA B. SYARIF Faizah Hamzah Faizah Hamzah Fajar Restuhadi Fajar Yuliandri Fakhruni Alisya Farida Hanum Hamzah Fung, Liem Khe GUSLIKO NURMAN Hakim Santo Hamzah, Farida Hanum Handoko, Tito Harsanto Mursyid Hasnah AR, Nur Hasnah, Nur Heni Adhianata, Heni Idwal Idwal Suripto Idwal Suripto Ihsan, Fikratul Ilhamsyah Azri Imelda Yunita Ishak Alhafis Jum'atri Yusri Jum’atri Yusri Khairunnisa Amanda Kurnia, Ridho Lasron Pahala Tua Nainggolan Luky Prasetyo Luqmanul Hakim M Fazil Melati Savira Habsari MELIYANA MELIYANA Mhd Andry Kurniawan Muhaiminati Adlina Muhammad Luthfi Muhammad Nur Cahyanto Nadya Novianti Dwi Putri Nasution, Addiena Syahvina Netti Herawati Ningsih, Arum Rovarti Nita Rimayanti Nopiani, Yanti Noviar Harun Nul Hakim, Lukman Nur Hasnah NURMAN, GUSLIKO Pasaribu, Jekson Putra, Diswanto Putri Nada Sirait Putri, Mutiara Riyanto Putri, Vivin Jenika Rahmadini Payla Juarsa Rahmah, Anania Rahmayuni Rahmayuni Rahmayuni Rahmayuni, Rahmayuni Rahot Manto Sinaga Raiyan Renadi Ramayuni Ramayuni Randa, Agustian RARA ANIRA Raswen Efendi Renadi, Raiyan Rika Afrianto Ristia, Jeany Riza Fahlevi Rizkiyah Roni, Ahmad Ibrahim Roni, Masyitah Rossi, Evy Rovarti Ningsih, Arum Rozikhin, Rozikhin RUSLI RUSTAM Saitun Saitun, Saitun Salman, Annisa Nazifa Shanti Fitriani Silaban, Mastrina Simbolon, Marita TM Siti Nuraisah Siti Nurhajijah SITI SANTUN MULIA Sunardi Setiaries Sunardi Supranto Supranto Suryo Purwono Taufiq Maulana Taufiq Maulana Trivira Wulansuci USMAN PATO Victor David Vonny Setiaries Johan Wahyudin, Cecep Ijang Wati, Listya Eka Wawan Irawan, Wawan Weni Mulyani Asfi Wulan Kumala Dewi Wulandari, Dwi Seprina Yanti Nopiani Yasa Rudin Yelly Zamaya Yulia Citra Yuliandri, Fajar Yunisa, Fina Yusmarini Yusmarini Zulhardi, Rizky Zulhayada, Nasya