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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Pertanian
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 1,854 Documents
 102   103   104   105   106 
PENGARUH PERLAKUAN SODIUM TRIPOLYPHOSPHATE (STPP) PADA PATI SAGU TERMODIFIKASI TERHADAP KETEBALAN, TRANSPARANSI DAN LAJU PERPINDAHAN UAP AIR EDIBLE FILM Maharani, Yulia; Hamzah, Faizah; Rahmayuni, Rahmayuni
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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Abstract

The use of native starch in production the edible film have weakness characteristic is vulnerable. Therefore, modified of the starch was necessary improved the functional properties of native starch. The purpose of this research was to determined the best of modified starch with concentrations of sodium tripolyphosphate (STPP) in making modified starch as raw material for edible film. This research used Completely Randomized Design (CRD) with four treatments and four replication followed by DNMRT test at  5%. The treatments in this research was S1 (STPP 0%), S2 (STPP 0.5%), S3 (STPP 1,0%) and S4 (STPP 1.5%). The resultsshowed that the use of modified starch in a different concentration of sodium tripolyphosphate (STPP) with has significant affected on the transparency, water vapor transmission rate, tensile strength and elongationhowever not significant affected on the thickness. The best treatment edible film of modified starch in a different concentration of sodium tripolyphosphate (STPP) in this research was S4 (STPP 1.5%) with thickness 0.0822 mm, transparency of the value 3.3110, water vapor transmission rate 22.7418 g /m2/h, tensile strength   1.7706 MPa, and elongation 19.3269%. Keywords: modified starch, cross-linking, sodium tripolyphosphate, edible film.
Pengaruh Volume Penyiraman Air Dan Kompos Kulit Buah Kakao Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) Pada Medium PMK Di Pembibitan Utama Dedi Setiawan Marpaung; Ardian Ardian; Erlida Ariani Ariani
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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This study aims to determine the effect of the watering volume and cocoa pod husks compost in the RYP medium as well as to get the best treatment combination on the growth of oil palm (Elaeis guineensis Jacq.) seedlings in the main nursery. This research was conducted in the greenhouse of Faculty of Agriculture, University of Riau, Pekanbaru, from December 2015 to March 2016. This research conducted as an experiment using a completely randomized design (CRD) and 3 replications. Each experimental unit had  2 seedlings. Parameters those measured were seedling height, leaves number,  trunk diameter growth, roots to shoot ratio, and dry weight. Data were analyzed statistically using ANOVA and Duncan's Multiple Range's at the tier of 5%. The results suggest  that the interaction of  watering volume and cocoa pod husks compost  had no significant effect on all parameters, but watering volume significantly affected dry weight. While cocoa pod husks compost significant effect on seedling height and seedling dry weight. In implementation of  2.5 l / polybag watering volume and 200g / polybag cocoa pod husks compost provide the best treatment to all parameters.  Keywords: oil palm,  water volume watering, cocoa pod husks compost 
PENGHITUNGAN BIOMASSA DAN KARBON DI ATAS PERMUKAAN TANAH DI HUTAN LARANGAN ADAT RUMBIO KAB KAMPAR Nasib Tuah; Rudianda Sulaeman; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Forests are natural resources that can absorb carbon dioxide (CO2) in the process of photosynthesis, and convert it into carbohydrates and store them into biomass. Prohibition of indigenous Rumbio forest areas is one area of forests managed by communities’ customary law, which is the existence of indigenous forest to gain recognition by the State which has the right to control all resources. In order, it needs to know how big the potential of carbon. The study aims to determine the potential of biomass and carbon on the ground in Indigenous of Rumbio Forest. Mechanical determination of the plot and data is done by Stratified Random Sampling, which is the method of taking the sample based on strata (levels). The potential of biomass on the ground biomass is done by summing the litter, nursery, lowers plants, saplings, poles and trees that use formula algometric. Biomass litter and plant seedlings under estimated by using the Indonesian National Standard. Carbon stored value is 0.47 of biomass. The results showed that the carbon potential in the area ofIndigenous of Forests  Rumbio forest is 31922.21 ton / ha.  Keywords: forest, forest customary prohibition, biomassa, carbon
PENGARUH PENAMBAHAN KELOPAK ROSELLATERHADAP MUTU SENSORI PERMEN JELLY DARI ALBEDO SEMANGKA Meieri Adelila Saragih; Vonny Setiaries Johan; Usman Pato
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Jelly candy is one of the popular candy among people especially children. The purpose of this research was to obtain the best ratio albedo of watermelon and rosella flower petals in the manufacture of jelly candy. This research used Complete Randomized Design (CRD) Experiment with five treatments and three replications. If F count equal or bigger than F table, then will do next test DNMRT (Duncan’s New Multiple Range Test) at level 5%. The treatments in this research were A1R1 (ratio of watermelon albedo extracts and rosella petals extracts 90 : 10), A2R2 (ratio of watermelon albedo extracts and rosella petals extracts 80 : 20), A3R3 (ratio of watermelon albedo extracts and rosella petals extracts 70 : 30), A4R4 (ratio of watermelon albedo extracts and rosella petals extracts 60 : 40) and A5R5 (ratio of watermelon albedo extracts and rosella petals extracts 50 : 50). The results showed that extract albedo of watermelon and rosella petals significantly affected the description of sensory test to colour, texture, flavor, teste and hedonic test. The best formulation of jelly candy was A5R5 with organoleptic scores of A5R5 were colour 4.46 (red), taste 3.83 (acid), texture 2.91 (rather chewy), flavour 3.83 (rosella flavour) and 4.36 (hedonic over all test). Keywords: Jelly candy, albedo of watermelon, petals of rosella.
KARAKTERISTIK HABITAT Trigona spp. DI HUTAN LARANGAN ADAT DESA RUMBIO KABUPATEN KAMPAR Iqbal, Muhammad; Yoza, Defri; Budiani, Evi Sri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Forest provide great benefits to society arround forest even direct advantage or indirect advantage. Bee Trigona spp. is a type of honey bees that often kept traditionally by the rural society with used gelodok. Production’s honey of Trigona spp. a bit of limited. Before it cultivated and to get it shoukd be looking for in the forest directly, beside that the production of honey still a bit low (1-2 kg or about 2 liter per colony per year). Bee Trigona spp. can be found in tropical rain forest, one of which is in Traditional Forest the Prohibition Rumbio Village Kampar Regency. This study aims to identify the characteristics of the habitat Trigona spp. in Traditional Forest the Prohibition Rumbio Village Kampar Regency. The method of this reseacrh using  survey method. The information about the nest of Trigona spp. in Traditional Forest the Prohibition Rumbio Village consist of red chelate tree (Syzygium sp.), kempas (Koompassia malaccensis), jackfruit (Artocarpus heterophyllus) and dead tree. The average daily temprature and humidity about 28,3-31,0ºC with average about 29,8ºC and humidity about 80,5-83% with average 81,8 %.Key words: Trigona spp., Traditional Forest the Prohibition, honey.
VARIASI RASIO BAHAN PENSTABIL CMC (Carboxy Methyl Cellulose) DAN GUM ARAB TERHADAP MUTU VELVA ALPUKAT (Parsea americana Mill.) tantono, Erwin; Effendi, Raswen; Hamzah, Farida Hanum
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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The purpose of this research to obtain the best concentration ratio of stabilizer CMC and gum arabic in making of avocado velva. This research used Completely Randomized Design (CRD) with five treatments and three replications followed by DNMRT test at 5% level. The treatments in this research was CG1(stabilizer CMC:arabic gum=0:1), CG2 (stabilizer CMC:arabic gum= 1:2), CG3 (stabilizer CMC:arabic gum= 1:1), CG4 (stabilizer CMC:arabic gum= 2:1) dan CG5 (stabilizer CMC:arabic gum=1:0). The result of analyis of variance showed that variations combination of stabilizer CMC and gum arabic has significantly affected the overrun, melting rate, total dissolved solid and sensory value on descriptive and hedonic attribute texture. Variations ratio of stabilizer CMC and gum arabic on descriptive and hedonic did not significantly affected attribute colour, flavour and taste of avocado velva. The best treatment in this research was CG4 (stabilizer CMC:arabic gum= 2:1) with overrun 20.30%, melting rate 24.19 minutes, total dissolved solid 32.12 °brix, yellow colour, avocado flavour, avocado taste and soft texture. Keywords: velva, CMC, gum arabic
ANALISIS KEARIFAN LOKAL TANAMAN BUAH SALAK DI KECAMATAN ANGKOLA BARAT KABUPATEN TAPANULI SELATAN PROVINSI SUMATERA UTARA Rifsan Azizi; Eri Sayamar; Kausar Kausar
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Commodities bark (zalacca edulis) is a plant that is suitable to be developed in Indonesia. The purpose of this study are: (1) To identify the forms of local wisdom in crops of fruits from the first until now. (2) To determine the application of indigenous crops of fruits in the District of West Angkola. (3) To know the strategy in maintaining local knowledge in plant fruits. This study using interviews, questionnaires and Snowball Sampling in the number of respondents the right to obtain 15 respondents consisting of 1) village officials, 2) Elders (Datuk), 3) Religious Leaders, 4) Figures Supernatural, 5) Community Leaders, 6 ) Farmer Members, 7) Parent, 8) Agricultural extension field, 9) Vegetable Bark. In the amount of local knowledge by the farmers of fruits ago and is now at 55 local wisdom Identification. Local knowledge of plant fruits dominated by the activity pattern of human behavior, behavior, actions / activities that reflect the daily life of the local community and religion. Keywords: Local Wisdom, Identification, Farmer 
PEMBUATAN SIRUP SALAK PADANG SIDIMPUAN DENGAN PENAMBAHAN EKSTRAK KELOPAK BUNGA ROSELLA Zulfadli, Muhammad; Pato, Usman; Hamzah, Faizah
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5, No 1 (2018): Wisuda April Tahun 2018
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Syrup is one of the liguid processed products consumed by some people as a thirst releasing drink. The purpose of this research was to get the best formulation of padang sidimpuan salacca syrup with the addition of rosella flower petal extract that meet the SNI 01-3455-2013. Study was conducted experimentally using Completely Randomized Design with five treatments and four replications thus obtained 20 experimental units. The treatments in this study K0 (salacca extract 100% : rosella flower petal extact 0%), K1 (salacca extract 95% : rosella flower petal extact 5%), K2 (salacca extract 90% : rosella flower petal extact 10%), K3 (salacca extract 85% : rosella flower petal extact 15%), and K4 (salacca extract 80% : rosella flower petal extact 20%). The data obtained were analyzed by statistic using Analysis of Variance (ANOVA) followed by Duncan’s New Multiple Range Test (DNMRT) on 5% level. The result showed that ratio of salacca extract test rosella flower petal extract to making syrup significantly affected the degree of acidity (pH), sucrose, viscosity, total dissolved solid and sensory. The best treatment was K2 with pH 4.55, sucrose 69.75%, viscosity 346.64cP, total dissolved solid 69.90°brix. Syrup characteristic of treatment K2 in descriptive test had a purplish red color, scented salacca flavor, sweet little acid taste, viscous consistency, and overall assessment were liked by the panelists. Keywords: Syrup, Salacca, Rosella flower petal extract
AGRIBISNIS NENAS DI KECAMATAN TAMBANG KABUPATEN KAMPAR Lili Budianingsih; Syaiful Hadi; Susy Edwina
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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 This study was aimed at knowing agribusiness system of pineapple and determine farm income pineapple in Tambang Sub-district by using survey method.Purposive sampling method was used to get 52 pineapple farmers as sample. The result showed total cost per year was Rp.37.719.046,40-/Ha. Production of pineapple was about 34.314 Pcs/Ha/year, and profit was about Rp.56.092.199,16/year. It indicated that the pineapple farming was efficient and value of Retrun Cost Ratio (RCR) was>1 (2,49) indicated  that pineapple farming suitable to be continued too. Post harvest of pineapple farming consist of collecting, sorting, and and transportation, but saving was not done  by farmers. Marketing channel of pineapple farming consist of 4 channels and subsystem institutional was UED-SP, Counseling institution, and government institution. Supporting institution was not good at all yet.  Keywords: Agribusiness, Pineapple    
PENGARUH PERBEDAAN DOSIS LIMBAH CAIR BIOETANOL (Vinasse) TERFERMENTASI TERHADAP PERTUMBUHAN BIBIT TANAMAN KAKAO (Theobroma cacao L.) Alfen Hasiholan; Armain Armain; Sri Yoseva
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Bioethanol’s liquid waste (vinasse) is one of organic matter that pottentialy as organic fertilizer. The objective of this research was to observe the effect of vinasse and get the best dose on seedling growth of the cocoa plant. This research used completely randomized design non factorial consists of 5 treatments, they are without bioethanol’s liquid waste, 300 ml/polybag, 600 ml/polybag, 900 ml/polybag, 1200 ml/polybag. Each unit of treatment was repeated 4 times to obtain 20 units of experiment and the experimental unit comprises 4 plants, which is two of the plants used as plant samples. Parameters observed were plant height, number of leaves, steam diameter, leaf area, root volume, the ratio of crown roots and the dry weight. The results showed that significantly affect the bioethanol’s liquid waste increase in all parameters and the best treatment can be obtained by providing a dose of bioethanol’s liquid waste 600 ml/polybag. Keywords: Bioethanol’s Liquid Waste, Cocoa seedlings

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