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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 831 Documents
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KARAKTERISTIK PENGERINGAN DAGING BUAH PALA (Myristica fragrans houtt) MENGGUNAKAN ALAT PENGERING TENAGA SURYA TIPE TENDA Muara Dewa Taarae; Frans Wenur; Ireine A. Longdong
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29965

Abstract

ABSTRACT The drying of the nutmeg using a tent-type solar dryer has been carried out in order to determine the drying characteristics of the nutmeg flesh and to determine the drying efficiency. The results showed that the drying process of the material to reach a moisture content of 12-14% took 19 hours with the average solar radiation intensity on days 1, 2, and 3 being 429.06 W/m2, 446.16 W/m2, and 560.13 W/m2. This intensity resulted in temperature changes for the material temperature and room temperature of the dryer on days 1, 2 and 3 which ranged from respectively (38.5 oC and 32.88 oC), (41.5 oC and 32.88 oC), and (43.5 oC and 32.46 oC). The average humidity of the air inside and outside the dryer on days 1, 2, and 3 are (80.62% and 83.19%), (76.34% and 79.50%), and (81.19% and 81.41%). The drying rate of the nutmeg flesh for days 1, 2, and 3 varied with an initial moisture content of 85.26% (bb). The results of the calculation of drying efficiency on day 1, 2, and 3 were 28.09%, 9.03% and 2.33%, respectively. Key words: Drying characteristics, radiation intensity, drying efficiency.
PENGARUH PENGEMASAN TERHADAP MUTU BUAH PISANG KEPOK (Musa paradisiaca.L) PADA PENGANGKUTAN DARI PULAU BIARO KE MANADO Yuliana Lisawengeng; Frans Wenur; Ireine A. Longdong
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29966

Abstract

ABSTRACT The handling of Kepok bananas within inter-island transportation in Biaro, SITARO Regency is still traditionaly, therefore Kepok bananas suffer mechanical damage such as bruises, scratches, and broken wounds. Good handling steps are needed in the transportation process so that the product can arrive in the hands of consumers in good quality conditions. This study aims to determine a good packaging that is able to withstand pressure and friction during the transportation of Kepok banana fruit from Biaro to Manado. Research using the Experimental Method with Descriptive Analysis. The packaging consisting of  plastic sacks, cardboard packaging and wooden box packaging. Kepok bananas are packaged according to available packaging and transported by ship from Biaro Harbor to the Ferry Port in Munte then by land transportation to Manado. The results showed that the highest mechanical damage during transportation was found in Kepok bananas packed with plastic sacks at 41.84%, followed by Kepok bananas packed with cardboard with a damage value of 36.56%. Meanwhile, the lowest level of mechanical damage was in bananas packed with wooden boxes at 32.59%. Keywords: Postharvest Handling, Transportation, Packaging
KAJIAN MUTU WORTEL (Daucus carota L.) TEROLAH MINIMAL YANG DIKEMAS SECARA VAKUM Rusni Mirontoneng; Ireine A. Longdong; Lady Lengkey
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29967

Abstract

ABSTRACTMinimally processing of fresh carrots with vacuum packaging stored in lowtemperatures. The research objective is to assessing the quality of texture, change in weight,color, and moisture content and to determining the shelf life of minimally processed carrotsin vacuum packaging. Carrots were washed, then peeled, cut into pieces with a thickness of0.6 cm, after that rinse with water and chlorine. Then packaged according to treatment(vacuum and without vacuum) with a weight of 100 g each, after that it is stored in arefrigerator that has a temperature of 6 oC - 12 oC. The results showed that the initial watercontent of the sliced carrots day 0 has an average of 89.13%, after the 24 day for vacuumpackaging has an average of 91.13% and the packaging without vacuum has an average of90.87%. The average value of weight loss in vacuum packaging is 0.52%, and packagingwithout vacuum is 1.23%. Average value of texture on the vacuum package was 16.73 N, andthe final value of texture 12.96 N and the average texture value on the packaging withoutvacuum is 0: 17.29 N. After the 24th day is 14.85 N. Color changes on vacuum packs andwithout vacuum start on the 15th day until the 24th day from orange to orange yellow.Keywords: carrot, minimalyl processing, vacuum packaging, quality, low temperature.
ANALISIS PENGGUNAAN BEBERAPA JENIS KEMASAN PLASTIK TERHADAP UMUR SIMPAN SAYUR SELADA (Lactuca sativa L) SELAMA PENYIMPANAN DINGIN Octavianda I. C. Mamonto; Dr. Ir. Lady. C. Ch. E. Lengkey, MSi; Dr. Ir. Frans. Wenur, MS
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29974

Abstract

ABSTRACTThe objectives of this study were to analyze the weight loss, texture and colorchanges of lettuce during cold storage and determine the packaging that can be usedto store lettuce with a longer shelf life. The results of this study, lettuce using LDPEand PP type packaging at a temperature of 8.14 oC gave the best results for 9 daysof storage. Lettuce stored at 8.14 oC using LDPE and PP packages gave the smallestpercentage weight loss results, namely 4.48% and 1.03%. The hardness valuepacked with LDPE plastic at the base is 5.51 N, the middle part is 1.18 N, and thehardness value packed with PP plastic at the base is 4.23 N, the middle is 1.32 N.The last day gave the results of the hardness value packed with LDPE plastic at thebase of 8.56 N, the middle part of 1.31 N and the type of PP plastic packaging whichhad a hardness value at the base of 8.81 N, the middle part of 1.87 N with a physicalappearance still fresh and hard and the color changes to yellowish green on theleaves. LDPE and PP plastic packaging gives good results which can be used forstorage of lettuce with a longer shelf life.Keywords: Lettuce, PVC and LDPE packaging, PP
KAJIAN LIMBAH SENTRA RUMAH KAYU MINAHASA DI DESA TOMBASIAN ATAS Recard Wowor; Maria Sumakud; Hengki Walangitan
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29986

Abstract

ABSTRACKSTUDY OF MINAHASA WOOD SENTRA WASTE IN THE TOMBASIANVILLAGEThis study aims to describe the shape and amount of waste produced in themanufacture of Minahasa wooden houses, especially sawdust waste. This researchwas conducted at the center of the wooden house industry Tombasian Village, Kec.Kawangkoan Barat, Minahasa Regency. The study was conducted for approximatelythree months from November 2019 to January 2020. This research was conducted byquestionnaire survey method and direct measurement. The results of the amount ofwaste can be seen that the amount of raw material used for the construction of a 6 x5.5 m type house is approximately 6382733 cm3 after the process is seized to5571466 cm3. generated 811308 cm3 or 12.72%, thus the waste processed by thebulkhead is classified as large.ABSTRAK
PENGEMASAN VAKUM CABAI RAWIT (Capsicum frutescens L) PADA TINGKAT KEMATANGAN YANG BERBEDA Angeline Y. Lapasi; Lady C. Ch. E. Lengkey; Bertje R. A. Sumayku
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.29987

Abstract

ABSTRACTThis study aims to measure changes in moisture content, change in weight, change incolor and texture which is vacuum packed in the refrigerator to maintain the quality of cayennepepper. This study used a descriptive method, with vacuum packaging treatment at two levels ofmaturity, namely red chili and green bird's eye chilies with 3 repetitions for 17 days attemperature (6-13oC). The results showed that the initial moisture content in the vacuumpackaging of red chili peppers was 49.70% and green chili was 67.21% and the end of theobservation after 17 days in red chili was 50.70% and 82.74% in green bird's eye chilies. Thechange in weight of green chili which was vacuum packed during 17 days of storage was 0.02%.There was a change in color at the end of storage, in green bird's eye chilies, namely dark (greenyellow) and changes in red bird's eye chilies, namely dark brown (red). The texture of greenbird's eye chilies can be better preserved during 17 days of cold storage at 6-13 oC with the base5.47 mm / N, the middle 4.33 mm / N, and the tip 5.37 mm / NKeywords: Cayenne pepper, vacuum packaging, level of maturity, cold storage
KAJIAN PENGENDALIAN HAMA PENGGEREK BATANG CENGKEH ( Hexamitodera semivelutina Hell. ) MENGGUNAKAN METABOLIT SEKUNDER JAMUR Metarhizium DAN Beauveria DENGAN METODE INFUS AKAR Fini Natalia Tumewan; Jackson Watung; Maxi Lengkong; Dewi R.
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30054

Abstract

SUMMARYThis research aims to determine the effectiveness of the use of secondarymetabolites of Metarhizium and Beauveria fungi by infusion of roots in clove plantsagainst H. semivelutina larvae. The results of the study are expected to benefitfarmers in controlling H. semivelutina pests with secondary metabolites of thefungus Metarhizium and Baeveria in clove plants by means of a root infusion.The study was conducted in a clove plantation area owned by farmers in TonsawangVillage, Tobatu District, Southeast Minahasa Regency, North Sulawesi. Theresearch lasted for 3 (three) months, from February to April 2020. This study useda Randomized Block Design (RBD) method on farmers' clove plants.Determination of plants that will be applied to the root infusion is done by lookingat plants that are attacked by H. semivelutina pests by looking at the hole that emitsliquid mixed with feces in the clove plants in Tonsawang Village, Tombatu District.In this study using secondary metabolites of Metarhizium fungus and Beauveriafungus in H. semivelutina pest control by means of root infusion.The results showed that the average effectiveness of the use of secondarymetabolites in controlling H. semivelutina reached 78.52%, with a percentage ofeffectiveness of the secondary metabolite of Metarhizium fungus at 81.05% whichwas not significantly different from the secondary metabolite of Beauveria that was75.59%, but significantly different from the control of 10.57 %.Keywords: Effectiveness, secondary Metarhizium metabolites of fungus,Beauveria, H. semivelutina, Tombatu.Keywords: Effectiveness, secondary metabolites of Metarhizium fungus,Beauveria, H. semivelutina, Tombatu.
ANALISIS ENERGI PADA PENGERINGAN PARING DI PT. ROYAL COCONUT AIRMADIDI Yulian Sagrim; Prof. Ir. Robert Molenaar, MS, PhD; Dr. Ir. Frans Wenur, MS
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30055

Abstract

ABSTRACTThis study aims to identify the use of energy sources at the stage of the paring process,calculate the total energy used at the stage of the paring process and calculate the energyefficiency in this case, the efficiency of drying at the paring drying process. From the results ofthis study found the total energy used for paring drying at PT. Royal Coconut Airmadidi of22,808,070,020,500 joules. While the drying efficiency was found to be 33.2%, it means that outof 100% of the energy expended, only 33.2% was actually used in the paring drying process.Keywords: Energy Analysis, Paring Drying.
KAJIAN POROSITAS TANAH LEMPUNG BERPASIR DAN LEMPUNG BERLIAT YANG DITANAMI JAGUNG DENGAN PEMBERIAN KOMPOS (STUDY OF SANDY LOAM AND CLAY LOAM SOIL POROSITIES ON PLANTED MAIZE WITH COMPOST APPLICATION) Armiselin Ch. Salawangi; Jeanne Lengkong; Djoni Kaunang
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30588

Abstract

ABSTRACTThe research aims to determine the effect of compost on soil porosity of sandy loam and claysoils and to see its effect on the growth of Maize plants. This research was conducted at Greenhouseand at Soil Physics and Soil Conservation Laboratory from May until June 2017. The results showedthat the addition of compost to soil can increase soil porosity and also the addition of compost to clayeytextured soil increased the porosity compared to the sandy loam textured soils. Application of composttends to increase plant height and dry weight on all age of plants; i.e. 10 days after planting, 30 daysafter planting and 40 days after planting. Application of compost at a dose of 10 tonnes/ha gives thehighest plant height on sandy loam soils and the heaviest plant dry weight on clayey loam soils.Keywords:Compost, Porosity
KAJIAN KUALITAS AIR IRIGASI TALAWAAN SEBAGAI SUMBER AIR PERSAWAHAN DI DESA TALAWAAN KECAMATAN TALAWAAN KABUPATEN MINAHASA UTARA Billy Fandy. Sagai; Sofia Wantasen; Annie E. arore
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30589

Abstract

ABSTRACTWater has a very important role in life because all living things in this world need water.Plants and animals are mostly composed of water. Plant cells contain more than 75% waterand animal cells contain more than 67%. Less than 0.5% of water can be used directly forhuman purposes. Less than 0.5% of water can be used directly for human purposes. Thepurpose of this study was to determine the Talawaan irrigation water quality associated withSodium Adsorption Ratio (SAR) in Talawaan District, North Minahasa Regency. Talawaanirrigation water quality in Talawaan District includes SAR parameters in the TertiaryIrrigation Channel (1) of 1.56 me / L and SAR in Tertiary Irrigation Channels (2) of 0.92 me /L meets the requirements of irrigation water quality in the good category.Keywords: Water Quality, Sungai Talawaan, Irigation Water

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