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Journal : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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SIMBIOSIS MUTUALISME MIKROALGE Chlorella sp DENGAN BAKTERI PENGURAI B-DECO3 DALAM MENURUNKAN KADAR POLUTAN LIMBAH CAIR SAGU Pasaribu, Jekson; Restuhadi, Fajar; Zalfiatri, Yelmira
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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Liquid waste containing high levels of pollutants sago, so need to do processing of biological, physical and chemical.This research was to study the symbiotic system of a complex microorganisms contained in B-DECO3 as a decomposer agent, with the addition of photosynthetic microoalgae Chlorella sp as an oxygen producer in reducing organic loads of sago milling effluent. The method used in the experiment with completely randomized design (CRD) comprised of 5 treatments and 3 replications. The treatments were concentration variations of microorganisms B-DECO3 (0, 0.27, 0.55, 0.82 and 1.09 per cent v/v, respectively) with 800 ml/L (6.6 x 106 cell/ml) microalgae Chlorella sp. added up with waste sago milling effluent 1 liters of the liquid. Observations were made on day 0 and day to-7, except for the parameters pH, DO, and an abundance of cells is done every day. Data were analyzed statistically using Analysis of Variance (ANOVA) and Duncan’s Multiple Range Test (DNMRT) at 5% level. The results showed the role of symbiotic mutualism can reduce levels of pollutants wastewater sago. The best treatment is the addition of bacterial decomposition P4 B-DECO3Chlorella sp 20 ml and 800 ml (abundance of 6.6 x 106 cells / mL). P4 treatment lowers the value of COD 90.29%, 82.74% BOD, TSS 84.52%, 82.85% Nitrate and Phosphate 98.66%, and increasing the pH value of 97.56%, 73.82% DO, and cell abundance 72.44% Chlorella sp.  Keywords: B-DECO3 microorganisms, Microalgae Chlorella sp, liquid waste sago
PEMANFAATAN CANGKANG KELAPA SAWIT DALAM PEMBUATAN BRIKET DENGAN PENAMBAHAN PELEPAH KELAPA SAWIT Wiranata, Leo Candra; Hamzah, Faizah; Restuhadi, Fajar
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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Briquettes is one of the renewable energy alternatives that have uniformity of size, shape, density, and energy content. The purpose of this study was to examine the characteristics of briquettes consisting of a mixture of shells and midrib, and to determine the composition of the raw materials that can produce a briquettes with the best quality. The raw materials used were a mixture of shells and midrib with the proportion of 90%:10%, 80%: 20%%, 70%: 30%, 60%: 40%, and 50%: 50%. Types of tests performed on briquettes include crushing strength, moisture content, volatile matter, ash content, carbon bonded, and calorific value. The results of the tests showed briquettes crushing strength 3,54-6,07 kg/cm2, moisture content 3,24-4,14%, volatile matter 11,55-16,61%, ash content 4,94-5,23%, carbon bonded 74,01-80,25%, and calorific value 4181,04-6122,40 kal/g. The best quality of biopelet was in the percentage of shells and fronds was 80%: 20%.Keywords: Briquettes, palm shell, palm midrib, renewable energy
ANALISIS PEMETAAN KESUKAAN KONSUMEN PADA PRODUK KERIPIK TEMPE ORIGINAL DI KALANGAN MAHASISWA FAKULTAS PERTANIAN UNIVERSITAS RIAU Febrianto, Wegi Eko; Restuhadi, Fajar; Rossi, Evy
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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The purpose of this research is to know the position of the product and the best original tempe chips attributes from various kinds of original tempe chips are used, such as Qtela Tempe Chips, Ayu Bersaudara Tempe Chips, N & R Tempe Chips, Puspa Malay Tempe Chips, Reza Snack Tempe Chips, Big One Chips, MAK Snack Tempe Chips, Winda Snack Tempe Chips. It aims to determine the level of consumer preference to a product. In addition there is still a lack of effort in developing products towards the manufacturer at this time. This research is conducted by mapping methods of internal and external preferences with objects of eight different product types. Sensory analysis used was hedonic and descriptive test. The results of cluster analysis of hedonic test and the main component analysis of the descriptive test were then analyzed by using the preference mapping technique, with the sensory attributes used in tempe chips products were greasy, oily, savory, bitter, salty, crispy, brittle, thick, soybean, rancid, From the results of the analysis conducted, the Qtela tempe chips products, Ayu Bersaudara tempe chips and Winda Snack tempe chips most favored by the panelists.keyword: Original Tempe Chips, AHC, PCA, Preference Mapping
HUBUNGAN ANTARA KADAR ETANOL, KADAR GULA REDUKSI DAN JUMLAH SEL DALAM PRODUKSI BIOETANOL DARI AIR KELAPA KENTALDENGAN PENAMBAHAN TWEEN80TM Meisela, Elsy '; Restuhadi, Fajar '; ', Rahmayuni '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This study was conducted to determine the best concentration of Tween80™  in the manufacture of bioethanol from coconut water condensed by Saccharomyces cerevisiae. This study withincreasingthe urea and Tween80™ varying concentrations of this study conducted an experiment with four treatments and measurement in duplicate. Concentration of Tween80 ™ were T10 (0%), T2 (0.1%), T3 (0.2%) and T4 (0.3%). Observations were made every 24 hours; including ethanol content, sugar content and the number of cells. Data were analyzed descriptively by using a tabulation and graphs. The best treatment was a combination of T2 (urea 0.4 g / l and 0.1% Tween80™), which produced the largest ethanol 12%. Keywords: Coconut Water, Tween80™, Saccharomyces cerevisiae, Bioethanol, Veryhigh gravity
PEMBUATAN ES KRIM DENGAN PENAMBAHAN TEH KOMBUCHA SEBAGAI SUMBER ANTIOKSIDAN Pangestu, Dio Ajie; Yusmarini, Yusmarini Yusmarini; Restuhadi, Fajar
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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The research aimed to know the characteristics quality and sensory ice cream with the addition of different concentration of kombucha tea, as well as to know the best formulation that fulfill’s SNI (01-3713-1995). The research was conducted with five treatments and three replications. The treatments in this study were kombucha tea addition of 0, 10, 20, 30, and 40%. Data were statistically analyzed by using analysis of variance and followed by duncan ‘s new multiple range test at level 5%. The result of analysis of variance showed that the addition of kombucha tea significantly affected total dissolved solid, fat level, sucrose level, and antioxidant but did not significantly affect protein level. Kombucha tea ice cream treatment selected from the tested parameters was the treatment T2 (addition of 20% kombucha tea). The ice cream obtained had a fat 15.58%, protein 3.72%, sucrose 10.37%, total solids 30.22%, antioxidants 56.48 ppm.Keywords: ice cream, kombucha tea, antioxidant.
HUBUNGAN ANTARA KADAR GULA REDUKSI, JUMLAH SEL MIKROB DAN ETANOL DALAM PRODUKSI BIOETANOL DARI FERMENTASI AIR KELAPA DENGAN PENAMBAHAN UREA Putri, Santi Andriani; Restuhadi, Fajar '; ', Rahmayuni '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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This research was conducted to determine the best concentration of urea in bioethanol fermentation from coconut water using Saccharomyces cerevisiae in increasing ethanol production. This research was done experimentally using four treatments and two replications. The combination of urea levels were U1 (without urea), U2 (0,2 g/l), U3 (0,4 g/l) and U4 (0,6 g/l). Observations were made every 24 hours for 3 days include ethanol production, sugar reduction and the number of cells microbes. Data obtained from the analysis descriptively using tabulation and graphs. The best treatment was found in U3 (urea 0,4 g/l) with the highest ethanol’s yield of 11,25%, reduction of residual sugar amount of 168,13 g/l and the number of cells/mL of 1,0x109 in the three day.   Keywords: bioethanol, coconut water, urea, fermentation  
SINTESIS BIODIESELDARI MINYAK JELANTAHMENGGUNAKAN KATALIS BASA HETEROGEN BERBAHAN DASAR CANGKANG TELUR AYAM Dalimunthe, Imam S.; Restuhadi, Fajar '; Efendi, Raswen '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Conducted research of biodiesel methyl ester of wastecooking oil and methanol with use of ash as a catalyst. This study was done to optimize the manufacture of biodiesel from used cooking oil. This study uses a completely randomized design with four treatments, T1 (Reaction tansesterifikasi 2 hours), T2 (transesterification reaction 3 hours), T3 (transesterification reaction 4 hours) and T4 (transesterification reaction 5 hours) with three replications. The data were analyzed using ANOVA, continued by DNMRT at 5% level. The results showed that the transesterification reaction time was significantly (P<0.05) influenced the acid number, total glycerol, viscosity, flash point and levels of methyl ester, but did not significantly affect (P>0.05) on the water content. The analysis has been carrried obtained the best treatment is T4 with the results said saponification (114,223 mg KOH/g), the acid value (0,495 mg KOH/g), total glycerol (0.137%), viscosity (3.376 cSt ), water content (0.002%), flash point (195.750°C) and the level of methyl ester (99.738%). Keywords: Biodiesel, waste cooking oil, catalyst transesterification reaction.
Peningkatan Skala Percobaan (Scale Up Experiment) Pengolahan Limbah Cair Sawit secara Aerobik Menggunakan Teknologi Simbiosis Mutualisme Mikroalga Chlorella sp. dan Agrobost Yuliandri, Fajar; Restuhadi, Fajar; Zalfiatri, Yelmira
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
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This research was aimed to get the best various additions of Agrobost which symbiotic microalgae Chlorellasp. in accelerating to reduce of pollutants level in palm oil mill effluent using the scale up experimenttechnology.  This research used Completely Randomized Design with 5 treatments and 3 repetition.  This research used microalgae(with abundance ± 6,985,000 cfu/ml) and palm oil mill effluent with 5 treatments of Agrobost (0% v/v, 4% v/v, 8% v/v, 12% v/v and 16% v/v).  The data were obtained from statistical analytic using ANOVA and DNMRT in 5% level.  The results showed that the concentration of Agrobost had significant affects for nitrate and phosphate.  The selected treatment was 16% v/v addition Agrobost with the highest reduction level had nitrate of 3.40 mg.L-1 and phosphate of 8.18 mg.L-1. Keywords:palm oil mill effluent, Agrobost, microalgae Chlorella sp., scale up
Analisis Rantai Pasok dan Nilai Tambah Kopi (Studi Kasus di CV Kiniko Nagari Tabek Patah Kecamatan Salimpaung Kabupaten Tanah Datar) Supply Chain Analysis and Value Added of Coffee (Study Case at CV Kiniko Nagari Tabek Patah Salimpaung District Tanah Datar Regency) Sebayang, Aulia Shafira; Hamzah, Farida Hanum; Restuhadi, Fajar
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 purpose of this research was to identify the coffee supply chain, value added analysis received by the supply chain actors, and arrange alternative strategies by evaluating the internal and external factors to determine strategic priorities for CV Kiniko development. This study used descriptive quantitative and qualitative method. Descriptive qualitative used to describe the coffee supply chain using Vorst’s framework for chain design and set alternative strategies for CV Kiniko development by the internal factors evaluation and external factors evaluation matrix using SWOT analysis and rating the strategic priorities for CV Kiniko development using analytical hierarchy process (AHP). Descriptive quantitative used for measuring value added using Hayami method. The coffee supply chain started from the coffee farmers, coffee middleman, CV Kiniko, distributor and sales. The value added ratio of the actors as follow: coffee farmers 32% (medium value added ratio category), coffee middleman 4% (low value added ratio category) and CV Kiniko 55% (high value added ratio category). The strategic priorities that CV Kiniko has to do to improve the value added is expand the marketing networks by using the development of technology and information (0.358). Keywords: coffee, supply chain, value added, SWOT, AHP
ASAP CAIR DARI SABUT KELAPA MUDA SEBAGAI BAHAN PENGGUMPAL TAHU Sari, Manja; Efendi, Raswen; Restuhadi, Fajar
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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This research aimed to study the characteristic of tofu produced by using young coconut shell liquid smoke as coagulant. This research was experimentally conducted with four treatments dan four replications. The treatment used in this study were AC0 (3% acetic acid), AC1 (1% liquid smoke + 2% acetic acid), AC2 (2% liquid smoke + 1% acetic acid), and AC3 (3% liquid smoke). The results showed that using of young coconut shell liquid smoke as coagulant of tofu significantly affected yield, number of bacteria, ash contents, water contents, protein contents, descriptive sensory test of colour, aroma, and texture, hedonic test of colour and aroma, and hedonic overall test. The selected treatment in this study was AC1 (1% liquid smoke + 2% acetic acid). The tofu had 163.90%yield, 5.4pH, 81.79%water content, 0.15% ash content, 14.30%protein content, and 5.8x105cfu.ml-1 number of bacteria. Sensory characteristic of tofu was white colour, tofu’s characteristical flavor and rather soft texture. Based on hedonic test of colour, aroma, texture, and overall test, the panelists like the tofu. Keywords: tofu, coagulant, liquid smoke, young coconut shell  
Co-Authors ', AKHYAR ALI ', Akhyarali ', Eliza ', FADRO ', Mukmin ', Rahmayuni ' ', RASWEN EFENDI ', RIGUAN EPENDI ', RIKO PAMORI Abid, Hussein Rasool Adi Ruslan Agung Setiawan Framadya Agus Ika Putra Ahmad Fadli Ahmad Ibrahim Ahmad Ibrahim Roni Surya Hasibuan Ahmad Rifai Ahmad Rifai Ahmad Rifai Akhmad Ibrahim R. S. Hasibuan Akhyar Ali AKHYAR ALI &#039; Akhyarali &#039; Alexander Hutagaol Alfi Mawaddah Almira Nugroho Amun Amri Andri Gunawan Purba Andriani, Yulia Andriyani Fadmi Angelia Angelia Angga Pramana Angga Pramana Angraini, Elisya Anjelia, Yuni Annisa Rahma Ari Sandhyavitri Arifudin arifudin Arifudin Arifudin Ariyanda Putra Arvin Arvin Azhar, Muhammad Rizwan Beltaser Tuahta Benhard F Situmorang Beny Setiawan, Beny BUNGA RIA YULIANA SIAHAAN Carles Pernando Cepriadi Chairul &#039; Ciary Jannah Mangkay Conni Simarmata, Conni Dahliyusmanto, Dahliyusmanto Debby Anggina Dede putra pranata Delvi Andika Derita Lamtiar Pasaribu Desi Heltina Desy Tri Artika Devinda Desi Indra Murti Dewi Fortuna Ayu Dewi, Yossie Kharisma Dian Martha Darman Dian Martha Darman Didi Muwardi Dini Aji Pringgondani Diyah Suriani Djaimi Bakce Djaimi Bakce Djaimi Bakce Dodi Saputra Dodi Saputra Duafrizal Joycorleon Manik Edo Saputra Edy Saputra Eka Ramadhansyah Eliza &#039; Eliza Eliza Elka Roza Elsa Novitasari Elsyintia Dwi Putri Eri Sayamar Erick Gunawan Bahar Et, Elfa Azani Evy Maharani Fadel Al Barra FADLA B. SYARIF FADRO &#039; Faizah &#039; Hamzah Faizah Hamzah Faizah Hamzah Fajar Yuliandri Febrianto, Wegi Eko Febrina Ayuningtyas Febrizal Ujang Fitri Santi Fitri, Mozhalita Desta Gervilon Darvis Gustrinazul Hadi , Syaiful Hamidi, M. Rasyid Hamidi, Muhammad Rasyid Hamzah, Farida Hanum Hanifaturrahmi, Hanifaturrahmi Hartini, Fitri HARUN SIANTURI Hendri Winardo Ikhsan, Muhammad Ikhsan Ilham Apandi Imam Hidayat Imam S. Dalimunthe, Imam S. Imanuel &#039; Sianipar Indra Budiman indriana, fitrisya Irwandi Jaswir Ismail Haridsyah Iva Ancewita Saragih Jayawarsa, A.A. Ketut Jonrio Canway Juliati Samosir Juliati Samosir Jumatri Yusri Jumatri Yusri Jumatri Yusri Yusri Jum’atri Yusri Kausar &#039; Kausar, Kausar Khairunnisa Amanda Kurnia, Deby Kurnia, Deby Lela Natalia Lena Marjelita Lukmanasari, Putri M. Bayu Purwanto Manik, Marjohan ' Matius Teddy Ginting Megawati Megawati Meisela, Elsy ' Meki Herlon MITA SAPUTRI Monica Valentina Therescova Simbolon, Monica Valentina Therescova Muhammad Akbar Hasibuan Mukmin &#039; Mustaqim Mustaqim, Mustaqim Nadia Novianti Tamba Netti Herawati Ningsih, Arum Rovarti Novia Dewi Novia Dewi Novia Dewi Novian Novian, Novian Noviar Harun Novrianto &#039; Nuke Fatmasari Nuke Fatmasari Nuratika, Nuratika Nurfitasari, Mimi OKTANIYA OKTANIYA OKTANIYA, OKTANIYA Pangestu, Dio Ajie PARLUHUTAN PARLUHUTAN PARLUHUTAN, PARLUHUTAN Pasaribu, Jekson Pradita Arnandasari Prawiranegara, Barata Aditya Quan Paulus Giovan Rahmawati Ulfah Rahmayuni Rahmayuni Rahmayuni Rahmayuni, Rahmayuni Rano Raswen Efendi RASWEN EFENDI &#039; Ratih Ardia Sari Rezita Azizah Rici &#039; Mainaki Ricki Mustapa Ridanil Hanif Rifai, Ahmad Riftyan, Emma RIGUAN EPENDI &#039; Rika Afrianto RIKO PAMORI &#039; Rizki Ananda Rizky Zulhardi Rizza &#039; Novita Rosma, Iswadi Hasyim Rosnita Rosnita Rosnita Rosnita Rosnita Rosnita Rosnita Rossi, Evy Royyan Firdaus Roza Yulida Roza Yulida Roza Yulida Ryan E Syahrial Sabam Mael Beri M Sadzvirani, Sastiana Sakti Hutabarat Santi Andriani Putri, Santi Andriani SAPUTRI, MITA Sari, Manja Sebayang, Aulia Shafira Septya, Fanny Shorea Khaswarina SIANTURI, HARUN Simatupang, Dewi SISPA PEBRIAN Soewignjo Agus Nugroho Sri Haryati Sugiono Sugiono Sujantara, Defri Aire Sukri Rizki Ilahi Syafrini Rizki Rahmah SYAIFUL BAHRI Syaiful Hadi Taufik Setiawan Taufiq Maulana Taufiq Maulana Tengku Dahril, Tengku Teresia, Yossi Tika Fadilah Tri Azrul Disyamto Turnip, Titus T Ulfa Rizki Pradini Ulfah, Fatia USMAN PATO Utama, Panca Setia Vina Octavia Vonny Setiaries Johan Wahyu Sartika Wasisso Tunggul Pawenang Winda Kusuma Dewi Wiranata, Leo Candra Yelmira &#039; Zalfiatri Yelmira Zalfiatri Yeni Kusumawaty Yulia Andriani Yulia Andriani, Yulia YULIANA SIAHAAN, BUNGA RIA Yuliandri, Fajar Yunita Ariani Zebua Yunita Ariani Zebua Yusmarini Yusmarini Yusri , Jum'atri Yusri, Jum'atri Zulhamid Ridho Zulhardi, Rizky Zulkifli