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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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INDONESIA
COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol. 7 No. 6 (2016)" : 10 Documents clear
PENGERINGAN JAGUNG (Zea mays L.) MENGGUNAKAN ALAT PENGERING DENGAN KOMBINASI ENERGI TENAGA SURYA DAN BIOMASSA Rion N. Dure; Frans Wenur; H. Rawung
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13872

Abstract

ABSTRACTAn experiment of corn drying using a dryer with a combination of solar and biomass energy have been done. The objective of this study was to determine the drying characteristics of corn using a dryer with a combination of solar and biomass energy, consist of the changes in temperature, relative humidity, the change of moisture content as well as the changes of the rate of drying. The research using experimental methods with descriptive analysis. The results showed that in the process of drying with solar energy, the air temperature in the drying chamber was determined by the intensity of solar radiation and temperature of the material varies according to the position of the rack. When using a replacement heat source, the temperature of the material also varies according to the position of the rack, where the highest was found at the bottom shelf followed by the middle shelf and the upper shelf respectively. The relative humidity (RH) of the drying chamber was vary during the drying process. On the use of heat from a biomass kiln, the average RH of air in the dryer is quite low at 51,5% compared with the RH outside the dryer where on average of 83,2 %. On the use of solar energy, the air humidity (RH) of air in the drying room is 66,1 % in average and the outside RH is 84,9 % in average. During drying the moisture content of the corn decrease from 38,6 % to 6,7 % wb at the end of drying process. The drying rate varies in each rack, where the bottom shelf was the highest in the range of 0,61 to 2,68 % / hour, followed by the middle shelf in the range of 0,45 to 1,72 % / hour and the lowest found on the top shelf with a range of 0,25 to 0,67% / hour. Keywords: Maize, solar dryng, biomass.
PENENTUAN MUTU BRIKET BIOARANG DARI BAHAN BAKU LIDI IJUK DAN SERUTAN KAYU * Gebbi Y. Ngajow; Daniel P.M. Ludong; Freeke Pangkerego; Ruland A. Rantung
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13884

Abstract

ABSTRACTThis study aimed to evaluate the briquet quality made of palm leaf-rib from sugar palm plant and wood shavings based on the water content, ash content and briquet burning capacity as well as to determine the best quality of briquet based on the water and ash content.The results of this descriptive study showed that the highest water content was observed in the palm leaf-rib briquet (12,68 %) and the lowest was in the briquet made of 66,67 % palm leaf-rib and 33,33 % wood shavings (2,58 %). The highest ash content was in the briquet made of 100 % wood shavingsKeywords ; briquet, palm leaf-rib, sugar palm plant, wood shavings, quality
PENGARUH ZAT PENGATUR TUMBUH Benzil Amino Purin (BAP) TERHADAP INDUKSI DAN MULTIPLIKASI TUNAS BROKOLI Brassica oleraceae L. var. italica Plenck Elvis Sagai; Beatrix Doodoh; Deanne Kojoh
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13885

Abstract

ABSTRACTThis study aims to find out about the effect of plant growth regulators BAP on induction and multiplication shoots of broccoli Brassica oleracae L. var. italica Plenck. This study has been carried out at the Laboratory of Biotechnology Faculty of Agriculture for 3 months starting from April to July 2016. This study used a completely randomized design (CRD), which consists of a single factor, namely the concentration of BAP with 6 treatments and 4 replications. Shoots of broccoli isolated from sterile sprouts and maintained on shoots induction medium consisting of Murashige and Skoog basic medium. Benzylaminopurine (BAP) with a concentration of 1 ppm to 5 ppm is added to the media for inducing and multiplication shoots of broccoli. Results of the study showed that with a concentration of 1 ppm BAP,2 ppm and 5 ppm induce shoots faster than other treatments while the number of buds Award BAP concentration of 1 ppm, 4 ppm and 5 ppm produced the highest number of shoots among other treatments.Keywords: Shoots of broccoli, Benzilaminopurin, induction and multiplication
INVENTARISASI PARASITOID PADA HAMA TANAMAN JAGUNG (Zea mays) DI KABUPATEN MINAHASA UTARA Andreas P. Mambu; C.I. Salaki; N Wanta
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13886

Abstract

ABSTRACTNatural enemies known as biological organisms affecting the regulation of pest populations or other organism. In a habitat or ecosystem tropical agriculture are usually found in many types of biological agents that naturally regulate the balance of nature. Insect parasitoids is small or as large as the host in deadly parasites and their hosts. Parasitoid requires only one host to perpetuate the cycle of life. This research was conducted in the District Kauditan and Dimembe, North Minahasa Regency, North Sulawesi province in July to September 2012. The aim of the study is to determine the type of parasitoid pests of corn crops in the district and sub-district Kauditan Dimembe North Minahasa Regency. The results of this study are expected to be the basic data that are important in developing biological control, in order to increase production of corn in North Sulawesi. Retrieval of data using a survey method in two districts, and each district selected two villages, namely Kauditan and Dimembe. Parasitoids on corn crop in the region is no different with Kauditan Tatelu. Almost all kinds of parasitoids were found on corn plants were also found in maize nutmeg in Kauditan. Parasitoids were found on the ecosystem corn plants totaling 16 individuals.Keywords: Corn, Parasitoid
ANALISIS KONSUMSI BAHAN BAKAR PEMBANGKIT LISTRIK TENAGA DIESEL DENGAN SUBTITUSI GASIFIKASI SABUT KELAPA Deisy Pakiti; D. Pangkerego; D. Tooy; D. Ludong
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13893

Abstract

ABSTRACTBiomass energy is an alternative energy that is converted from biological material derived from recently dead organisms into energy to be used as a power plant. The purpose of this study of was to analyze the energy consumption of gas produced biomass and its comprasion with diesel fuel. Alaysis was done by varying loading on diesel power plants with a substitution gas from gasification of biomass from coconut husk. Conversion of biomass energy as a source of electrical energy was obtained from the downdraft gasifer. This research uses experimental methods to analyze the consumption of diesel fuel in some electrical loading with the substitution of diesel with the coconut husk produced gasification. Electrical load variation are : 500W, 1000W, 1500W, 2000W. the results of the study with 12,34% water content show that the higher the electrical load is used, the grater the fuel used. The consumption of diesel fuel can be reduced by using biomass gasification. The diesel reduction generated at a load of 500W is 50,87, and the reduction of diesel fuel consumption of loads of 1000W, 1500W and 2000W are 48,81%, 46,98% and 44,48%. It is advisable to further simplify the process of providing raw materials which is prepared manually, due reques a hard effort to unifom the size of coconut husk. Keywords : gasification, solar fuel
JENIS DAN POPULASI LALAT BUAH (Bactrocera sp.) PADA TANAMAN CABAI KERITING (Capsicum annuum L.) DI KOTA TOMOHON Erionata Manoi; Jimmy Rimbing; Ventje Memah
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13894

Abstract

SUMMARYThe study aims to determine the type and population of Bactrocera sp. in pepper curls inTomohon. Results are expected to be used as consideration in the preparation of pest controlstrategies Bactrocera sp. in pepper curls in the future akang come. The experiment was conducted incropping chilli curls on three Subdistrict namely Rurukan, Kakaskasen and Wailan. Research wasconducted during ± 3 months, ie April to June 2016. The study used survey methods at severalcenters planting chilli curls in Tomohon, then set the three villages as a location for research or as asampling. Criteria for the study site by the presence of old crop curly chili fruitful. Sampling usingMethod Diagonal slices are laid randomly trap fruit flies in each sub - sampling sites. Sampling wasdone by taking the imago Bactrocera sp. trapped, then the sample was collected in a bottlecontaining pure alcohol. Samples are labeled according to location and time of uptake, then taken tothe Laboratory of Entomology and Pest Plants, Faculty of Agriculture, University of Sam Ratulangi.Sampling was performed 5 times with intervals of 6 days. The results showed that there are twotypes and pest populations Bactrocera sp. at various research sites that Bactrocera dorsalis (Hendel)and Bactrocera umbrosa (Fabricus) with a total population of 4484 individuals.Key word : Cabai Keriting, Bactrocera sp.
KAJIAN PENGGUNAAN WADAH PENGEMASAN TERHADAP MUTU CABE RAWIT (Capsicum frutescens) YANG DISIMPAN PADA RUANG PENDINGIN Diliyanti O. Kapoh; Frans Wenur; Douwes D. Malik; Stella M.E. Kairupan
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13896

Abstract

ABSTRACTThe objectives of the study were to measure the changes of water content, the weight losses, changes in color, texture and to determine the level of damage that occurs during storage chili pepper in a cold room and get the right kind of packaging to preserve the quality of chili pepper. The research uses descriptive method with three packaging treatments and three replications. The treatment consisted of (1) packing within bamboo baskets, (2) packaging in the nets sacks, and (3) packing within plastic bags, HDPE (high density polyethylene). The results showed that chili stored at cold temperatures (6-10 oC) using plastic bags deliver the lowest lost 1.37% after being stored for 20 days compared to the net bag packaging with the losses of 35.98% and packaging bamboo basket with a loss of 18.22%. Chili packed with plastic bag showed the water content of 57.8% higher than net bag packaging of 40.73% and a bamboo basket with a water content of 52.85%. The hardness value of the base was 0.00025 mm/g, the middle section of 9.89 m/g, and the end of 75.20 mm/g. The damage percentage of chili pepper stored by using bamboo basket packaging was 10.09%, and within the net bag packaging was 16.32% while packaging in the plastic bag was 8.13%.Keywords : Packaging, chili pepper, cold storage
Sensory Quality Of Candy Calamansi (Citrofortunella microcarpa) Regina Pangerapan; Thema D.J. Tuju; Jenny E.A. Kandou
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13897

Abstract

ABSTRACTCalamansi (Citrofortunella microcarpa) in the Minahasa area often referred to as lemonfish, or lemon cui, this citrus fruit in one year can be 4 times the harvest season with thefruit of 40-42 kilograms. One Calamansi citrus fruit has 12 calories composition, with abit of fat, 1.2 grams fiber, 37 milligrams of potassium, 7.3 milligrams of vitamin C,vitamin A 54.4 milligrams, 8.4 milligrams of calcium, and water 15.5. This research willexplain the use of Calamansi that it can be processed into confectionery products.This study aimed to evaluate the panelist preference level of the color, aroma, taste andtexture of candy Calamansi and test the chemical quality candies include moisturecontent, ash content, reducing sugar and total acid. This study uses a completelyrandomized design (CRD) with 4 treatments A (80% Sucrose: 20% Glucose), B (70%Sucrose: 30% Glucose), C (60% Sucrose 40% Glucose), D (50% sucrose: 50% Glucose).All the above treatments be tested by 25 panelist. All treatment most preferred analyzedthe chemical quality of water content, ash content, reducing sugar, total acid. The resultsshowed that the candy most preferred is the treatment C with 60% sucrose and 40%glucose, with a bright yellow color, aroma and citrus flavor and texture rather hardKalamansi. While the analysis of the chemical quality of sweets Calamansi mostpreferably has a moisture content of 1.80%, ash content of 0.15%, 68.03% reducing sugarand total acid 2.28%
KAJIAN KEHILANGAN HASIL PADA PEMANENAN PADI SAWAH MENGGUNAKAN MESIN MINI COMBINE HARVESTER MAXXI-M (Studi Kasus di DesaTorout Kecamatan Tompaso Baru Kabupaten Minahasa Selatan) Valentinus T. Pondan; L.C.Ch.E. Lengkey; D. Ludong
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13898

Abstract

ABSTRACTThe purpose of this study was to determine the amount of loss of rice at harvest time, lostbecause it is not harvested, lost because of lagging on the machine, lost in the threshing. andthe capacity and efficiency in the field using the Mini Combine Harvester. Research wasconducted during April-May 2016, in the of Torout village, South Minahasa district. UsedSako rice which is the local varieties. Mini Combine Harvester Maxxi Type-M is used as aharvesting machine. Results showed that losses at the stage of harvesting or cutting, (2.09 ±0.81)%, standing crop loss (1.08 ± 0.17)%, un-thressed loss (1.44 ± 0.40)% and the threshingloss (0.003 ± 0.002)%.
PENGARUH PENAMBAHAN TEPUNG TAPIOKA PADA PEMBUATAN BISKUIT BEBAS GLUTEN, BEBAS KASEIN BERBAHAN BAKU TEPUNG UBI JALAR UNGU (Ipomoae batatas L ). Penina P. Hindom; Lucia C. Mandey; Erny Nurali
COCOS Vol. 7 No. 6 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i6.13899

Abstract

ABSTRACTThis study aims to determine the amount of the addition of tapioca flour right in making biscuits purple sweet potato (ipomoea batatas L). Analyze the nutritional content of gluten and casein-free biscuits are produced. Evaluate the sensory quality of the biscuits are produced. This study uses a completely randomized design with mixing treatment with a purple sweet potato starch and tapioca starch. Each - each 4 treatments performed 3 repetitions. Treatment A (10% addition of tapioca starch), B (15% addition of tapioca starch), C (20% addition of tapioca starch), D (25% addition of starch). Variables were observed in this study is the chemical content of the biscuit the water content, ash content, protein content, fat, crude fiber, carbohydrate, calorie value. Based on test results obtained organoleptic formula mixture of sweet potato flour and tapioca flour are the preferred panelists namely D (Extra 25% starch) and has the chemical content of water content (3,25%), ash content (2,80%), fat ( 22,74%), crude fiber (0,76%), protein (2,91%), carbohydrates (68,28%), a calorofic value (490,11 kcal). Keywords : Purple Sweet Potato Starch, Tapioca Starch, Confectionery.

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