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All Journal Jurnal Hortikultura Indonesia (JHI) Forum Pasca Sarjana Jurnal Teknik Industri Agrotekno Buletin Udayana Mengabdi JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Ilmiah Teknologi Pertanian Agrotechno Jurnal Ilmiah Rekayasa Pertanian dan Biosistem AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Journal of Agricultural and Biosystem Engineering Research
Yohanes Setiyo
Program Studi Teknik Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Hydrocooling dan Jenis Plastik Terhadap Mutu Jagung Manis (Zea mays L. Saccharata) Selama Penyimpanan Dingin Ni Luh Putu Sarasulistian; Ida Ayu Rina Pratiwi Pudja; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i01.p06

Abstract

ABSTRAK Hydrocooling merupakan cara sederhana untuk menurunkan suhu bahan pangan secara cepat sampai suhu bahan mendekati suhu penyimpanan yang akan dilakukan. Selain itu, perlakuan pengemasan bahan pangan mampu menghambat laju susut bobot dan kualitas produk. Rancangan Acak Lengkap (RAL) yang terdiri dari dua faktor. Faktor pertama adalah lama perendaman pada proses hydrocooling (tanpa perendaman, perendaman selama 60 detik, dan perendaman 120 detik (suhu air perendaman 5oC )) dan faktor kedua adalah jenis plastik (jenis plastik Polypropylene (PP) dan plastik High Density Polyethylene (HDPE)). Setiap unit percobaan dilakukan pengulangan sebanyak 3 kali dan semua unit percobaan disimpan pada lemari pendingin dengan suhu 10oC . Parameter diamati adalah a) susut bobot b) kekerasan bahan, c) warna, d) kadar air, e) laju pendinginan. Pengamatan dilakukan selama 8 hari dengan interval pengambilan data selama 2 hari sekali. Hasil pengamatan selama 8 hari menunjukan kombinasi perlakuan terbaik diperoleh pada perlakuan hydrocooling selama 2 menit dengan kemasan Polypropylene (H2P1) sebagai dengan jagung manis yang disimpan mengalami susut bobot 0,33%, kekerasan 34,20 N, warna L 50.00, a 16.69, b 51.81, kadar air 74,167%, dan laju pendinginan 2.3982 oC/30 menit. ABSTRACT Hydro cooling is a simple way to quickly lower the temperature of the food until the material temperature near the storage temperature. In addition, food packaging treatment can inhibit the rate of weight loss and product quality. This study used a completely randomized design (CRD) which consisted of two factors. The first factor was the immersion time in the hydrocooling process (without soaking, 1 minute immersion, and 2 minutes of immersion (immersion water temperature 5oC ± 1)) and the second factor was the type of plastic (Polypropylene (PP) plastic-type and High-Density Polyethylene (HDPE) plastic). Each experimental unit was repeated 3 times and all experimental units were stored in a refrigerator with a temperature of 10oC ± 1. The parameters observed were a) moisture content, b) weight loss, c) material hardness, d) color, and e) cooling rate. Observations were made for 8 days with data retrieval intervals for 2 days. During cold storage sweet corn undergoes many physical changes. These changes began to appear on the 6th day. On the 6th day, sweet corn stored in cold storage experienced physical changes, namely wilting, wrinkling, starting to pale, and brownish color appeared at the tip to the base of the surface of the sweet corn. On the 8th day sweet corn experienced a decrease in weight loss and moisture content in the treatment without hydro cooling and without packaging, while the hydro cooling treatment (1 minute and 2 minutes) and packed (with Polypropylene (PP) plastic and High-Density Polyethylene plastic (HDPE) also experienced a decrease in water content and weight loss but still had a high average value of moisture content and weight loss. The result of the decrease in moisture content and weight loss affected the hardness of sweet corn, color, and cooling rate. The best treatment combination was obtained in the hydro cooling treatment for 2 minutes with Polypropylene (H2P1) packaging with a weight loss value of 0.33%, hardness 34.20 N / mm2, color L 50.00, a 16.69, b 51.81, water content 74.167%, and a cooling 2.3982 oC / 30 minutes.
Pengembangan Sistim LEISA untuk Meningkatkan Produktivitas dan Kualitas Umbi Kentang (Solanum Tuberosum L.) Yohanes . Setiyo; Ketut Budi Susrusa; I G.A. Lani Triani; I D.G. Mayun Permana
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 1 No 2 (2016)
Publisher : Universitas Udayana

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Abstract

Tujuan penelitian aplikasi sistem LEISA (Low External Input on Sustainable Agriculture) padabudidaya kentang adalah untuk peningkatan produktivitas dan kualitas kentang. Percobaandirancang dengan rancangan acak kelompok (RAL) dengan lima perlakuan dosis pemupukankompos kotoran ayam. Dosis pemupukan kompos adalah: 0 kg/ha (kontrol), 10 kg/ha, 12,5 ton/ha,15 ton/ha, dan 17,5 ton/ha, dan 20 ton/ha yang dikombinasikan dengan pupuk NPK dosis 250kg/ha. Parameter yang diamati adalah: sifat fisik tanah, kesuburan lahan, populasi bakteri di tanah,produktivitas lahan dan kualitas umbi kentang. Sistim LEISA dengtan dosis pupuk kompos 20ton/ha mampu menghasilkan kentang menjadi 30,7 ton/ha atau 1,17 kg/pohon. Jumlah umbikentang konsumsi hasil penelitian 2016 adalah sebesar 76,84–87,71 %, sedangkan kentang kelasbibit adalah 9,25–22,06 %. Porositas tanah mencapai 50 % dengan kemampuan tanah menahanair 28 % pada dosis pemupukan kompos kotoran ayam 15 ton/ha. Pada dosis ini kandungan bahanorganic tanah lebih dari 5 % dengan KTK 23,8 me/100g atau lahan pada kategori subur. Selainitu, pada kondisi pH mendekati netral (6,8–6,9) bakteri yang ada dengan populasi 2,2 x 103–4,7 x108 cfu The research objective of applications LEISA (Low External Input on Sustainable Agriculture)system on the cultivation of potatoes was to increase productivity and quality of potatoes tubers.The experiment was designed with a randomized block design (CRD) with six treatments ofchicken manure compost fertilizer dosage. Dose fertilizing compost are: 0 ton/ha (as control), 10tons/ha, 12.5 tons/ha, 15 tons/ha, and 17.5 tons/ha and 20 tons/ha. This fertilizer was combinedwith NPK fertilizer 250 kg/ha. Parameters measured were: the physical properties of the soil, landfertility, the population of bacteria in the soil, land productivity and quality of potato tubers.LEISA systems with dose of compost 20 tons/ha are able to produce potatoes to 30.7 tons/ha or1.17 kg/tree. Total consumption of potato tuber from the research was 76.84 - 87.71%, while theclass of seed potatoes was 9.25 - 22.06%. Porosity of the soil was more than 50% with the abilityof soil to retain water 28 % w.b at doses of chicken manure fertilizer compost 15 tons/ha. At thisdose soil organic matter content of more than 5% with CEC was 23.8 me/100g or land wascategorized fertile soil. In addition, at pH close to neutral (6.8 to 6.9) existing bacterial populationwas 2.2 x 103 - 4.7 x 108 cfu.
Kajian Proses Fermentasi Bioslurry Kotoran Sapi dengan Penambahan Molase I Made Mudiarta; Yohanes Setiyo; I Wayan Widia
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 3 No 1 (2018)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2018.v03.i01.p03

Abstract

Penelitian ini bertujuan untuk mengetahui interaksi perlakuan penambahan molase dan penggunaan aerator pada proses fermentasi bioslurry kotoran sapi dan untuk mengetahui perlakuan terbaik pada proses fermentasi bioslurry kotoran sapi sesuai dengan persyaratan teknis minimal pupuk organik cair No.70./Permentan/SR.140/10/2011. Penelitian ini menggunakan rancangan acak kelompok faktorial dengan dua faktor dan tiga taraf perlakuan. Faktor pertama adalah penambahan 0, 2 dan 3 persen molase dan faktor kedua adalah penggunaan aerator 0, 1 dan 2. Masing-masing perlakuan diulang sebanyak tiga kali. Parameter yang diamati adalah suhu, biochemical oxygen demand, pH, total dissolved solids, electrical conductivity, C-organik, N-total, rasio C/N dan warna bioslurry. Hasil penelitian menunjukkan bahwa interaksi perlakuan penambahan molase dan penggunaan aerator berpengaruh pada proses fermentasi bioslurry kotoran sapi. Interaksi perlakuan penambahan molase 2 - 3 persen dengan penggunaan aerator 1-2 dapat mempercepat proses fermentasi bioslurry kotoran sapi dari 15 hari menjadi 10 hari. Hal ini ditandai dengan nilai biochemical oxygen demand yang sudah menurun pada hari ke 10 fermentasi. Dari sembilan perlakuan pada proses fermentasi bioslurry kotoran sapi, penambahan molase 3 persen dengan penggunaan 2 aerator merupakan perlakuan yang terbaik yaitu, menghasilkan total dissolved solids 6270 ppm, electrical conductivity 3,36 mS, C-organik 6,75 persen, N-total 0,44 persen, rasio C/N 15,82 dan warna hitam. Hasil ini sudah sesuai dengan standar No.70/Permentan/SR.140/10/2011. Namun, untuk kandungan N-total bioslurry belum cukup memenuhi standar Permentan yaitu 3 - 6 persen.
Optimasi Sifat Fisik Tanah di Zone Perakaran untuk Peningkatan Produksi dan Kualitas Umbi Kentang I Made Nada; Made Merta; Yohanes Setiyo
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 2 No 1 (2017)
Publisher : Universitas Udayana

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Abstract

Perbaikan sifat fisik tanah di zone perakaran dapat dilakukan dengan bahan organic yangdekomposisinya agak sulit seperti kompos kotoran ayam yang mengandung sekam. Penelitiandengan perlakuan : (1) jenis kompos, dan (2) dosis pemupukan. Jenis kompos yang dipergunakanadalah kompos kotoran ayam dan kompos kotoran sapi. Dosis pemupukan dengan kompos adalah15 ton/ha, 17.5 ton/ha, 20 ton/ha, 22,5 ton/ha dan 25 ton/ha. Setiap unit percobaan diulang 3 kali,sehingga secara keseluruhan ada 36 unit percobaan. Setiap unit percobaan berukuran 1 m x 10 m.Teknik pemupukan menggunakan kompos kotoran ayam dan kotoran sapi mampu memperbaikisifat fisik tanah terutama porositas, dan kemampuan tanah mengikat air, kompos kotoran ayammampu meningkatkan porositas menjadi lebih dari 50 % dengan kemampuan menahan air naik0,9 % jika dosis ditingkatkan 1 ton/ha. Produksi kentang konsumsi varietas granola meningkatdari 17 ton/ha menjadi 23,22 – 27.8 ton/ha. Peningkatan produksi juga diikuti dengan pergeserankelas umbi kentang konsumsi yang dihasilkan, jumlah umbi kentang konsumsi adalah sebesar16,43 – 30,44 %.
Unjuk Kinerja Sistem Aerasi Dalam Kotak Penyimpanan Kentang (Solanum tuberrosum L) Tipe Kotak Yohanes Setiyo; Dandy Zulfikar Sulthan Siata; I Gusti Ketut Arya Arthawan
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p01

Abstract

The purpose of this study was to determine the performance of the box type potato storage aeration system in terms of changes in temperature and RH of the air during storage. Research on a box type aeration system for potato storage was carried out by measuring the temperature and RH of the incoming air, the temperature and the RH of the outgoing air during storage of potatoes for 21 days. In addition, calculating the heat of respiration, heat to increase the temperature of potatoes, heat to evaporate water and heat lost to the environment using a simple mathematical model approach. The results showed that the temperature and RH of the room and the incoming air flow tended to form a linear pattern, while the RH of the process room and the outgoing air flow tended to form a polynomial pattern. The temperature of the potato storage room was in the range of 24.07-25.70oC and the RH was in the range of 56.0-65.6%. The heat value of respiration varied between 261.42 - 311.88 k.Joule/kg potato tubers, because the storage temperature was 24.07-25.70oC. The heat generated by the respiration process used to evaporate water from the potato tubers to the environment is 6.01±0.3% on average, the average heat to raise the temperature of the potato tubers and the air temperature around the potato is 24.08±1, 3%, and the average heat loss to the environment with the flowing air is 59.89±3.4%.
Analisis Iklim Mikro di Greenhouse dengan Atap Tipe Arch untuk Budidaya Bunga Krisan Potong Yohanes Setiyo; S Sumiyati; Ni Putu Yuliasih
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 4 No 1 (2019)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2019.v04.i01.p04

Abstract

Petani di Desa Candikuning membangun greenhouse untuk budidaya bunga krisan potong tanpa melakukan perhitungan teknis. Greenhouse tersebut dibangun berdasarkan pada ketersediaan bahan baku lokal, biaya tersedia dan topografi wilayah. Analisis iklim mikro pada greenhouse dengan atap tipe arch untuk optimasi kecepatan pertumbuhan dan kualitas bunga krisan yang dihasilkan menjadi obyek penelitian. Data-data yang dikumpulkan adalah: data iklim mikro (suhu, kelembaban, dan intensitas cahaya), data pertumbuhan tanaman krisan (tinggi tanaman) dan data kualitas bunga (jumlah dan diameter bunga). Hasil penelitian terhadap intensitas cahaya rata-rata di greenhouse dengan tinggi atap 2,5 m, 3,0 m dan 3,5 m masing-masing adalah : 27.6 ± 5.5 k.lux, 27,5 ± 4,3 k.lux dan 29.5 ± 2,5 k.lux dengan suhu rata-rata adalah 21,1 ±0,2 oC, 27,5 ±0,17 oC dan 21,2 ±0,3 oC. Intensitas cahaya yang memasuki ruangan greenhouse sebesar 20 – 30 % dari intensitas cahaya yang mengenai atap bangunan. Kelembaban udara di ruang greenhouse tersebut masing-masing adalah 73,3 ± 0,5%, 77,5 ± 0,4 %, dan 86,3 ± 0,7 %. Hal ini menunjukkan bahwa jumlah energi radiasi matahari yang diterima atap dan dinding greenhouse untuk menaikkan suhu ruangan dan intensitas cahaya dari greenhouse secara efektif untuk mendukung proses fotosintesis, sehingga tanaman berbunga pada ketinggian 70-80 cm dengan bunga pertama berdiameter rata-rata 7,5 ± 0,6 cm. Farmers in Candikuning Village built a greenhouse for chrysanthemum cut flowers cultivation without performing technical calculations. The greenhouse was built based on the availability of local raw materials, available costs, and regional topography. Micro-climate analysis on roof-type greenhouse with arch type to optimize the growth speed and quality of the chrysanthemum produced is the object of research. The data collected are microclimate data (temperature, humidity, and light intensity), data on the growth of chrysanthemum plants (plant height) and flower quality data (number and diameter of flowers). The results of the study on the average light intensity in greenhouses with roof height of 2.5 m, 3.0 m and 3.5 m respectively are: 27.6 ± 5.5 k.lux, 27.5 ± 4.3 k.lux and 29.5 ± 2.5 k.lux with an average temperature of 21.1 ± 0.2 oC, 27.5 ± 0.17 oC and 21.2 ± 0.3 oC. The intensity of the light entering the greenhouse room is 20-30% of the intensity of light that affects the roof of the building. The air humidity in the greenhouse space is 73.3 ± 0.5%, 77.5 ± 0.4%, and 86.3 ± 0.7%, respectively. This shows that the amount of solar radiation energy received by the roof and walls of the greenhouse to increase the room temperature and light intensity from the greenhouse effectively to support photosynthesis so that the plants flower at an altitude of 70-80 cm with the first flower with an average diameter of 7.5 ± 0.6 cm
Education and Training on the Production of Organic Fertilizers and Biopesticides for Cocoa Farmers in Pulukan Village, Jembrana, to boost organic cocoa production: Education and Training on Making Organic Fertilizers and Biopesticides for Cocoa Farmers I Nyoman Rai; I Made Sudana; Setiyo Yohanes; I Wayan Wiraatmaja
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 7 No. 1 (2023)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (480.973 KB) | DOI: 10.29165/ajarcde.v7i1.207

Abstract

Pulukan Village, located in the Jembrana Regency of Bali, is one of the primary communities that produce organic cocoa. The huge demand for organic cocoa beans has not been satisfied due to the poor production per hectare. One of the causes is that cocoa farmers in the village have trouble obtaining the recommended volumes of organic fertilizers and biopesticides. To raise the yield of organic cocoa, this service is provided to farmers to enhance their knowledge and ability to create organic fertilizers and biopesticides from local components. The activities are implemented through counselling and training on producing organic fertilizers and biopesticides, followed by support in applying organic fertilizers and biopesticides. Participants in training and mentoring are encouraged to work together and learn concurrently. The implementation of the counselling on the production of organic fertilizers and biopesticides was excellent, as indicated by the fact that 93.33 per cent of participants said they comprehended the material presented very well, and 100 percent said it was fascinating and very beneficial. Participants could produce excellent organic fertilizers and biopesticides due to training activities involving direct practice. As a result of training in plots, organic fertilizers, and biopesticides can improve farmers' ability to directly implement fertilizing methods and disease pest management in organic cocoa farming. Applying organic fertilizers and biopesticides in the plot revealed that cocoa trees treated with organic fertilizers and biopesticides had greater growth and fewer disease-causing insect infestations than control trees.This motivated the service volunteers to implement the plot's best practices on their organic cocoa crops.
Studi Variasi Konsentrasi Asam Stearat dan Amonium Molibdat terhadap Karakteristik Fisik Kemasan Cerdas Bioplastik Ni Putu Ayu Prya Chandani; Ni Luh Yulianti; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p09

Abstract

Abstrak Kemasan cerdas merupakan kemasan yang memiliki kemampuan untuk memberikan informasi tentang mutu produk yang dikemas secara langsung dengan memanfaatkan sejumlah senyawa yang berperan sebagai indikator mutu produk yang dikemas, sehingga penelitian tentang kemasan cerdas layak untuk dilakukan. Penelitian ini bertujuan untuk mendapatkan pengaruh konsentrasi asam stearat dan amonium molibdat terhadap karakteristik fisik kemasan cerdas bioplastik; menentukan perlakuan yang menghasilkan karakteristik fisik kemasan cerdas bioplastik terbaik sesuai SNI serta mendapatkan respon indikator kemasan cerdas bioplastik terhadap tingkat kematangan buah alpukat. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dua faktor. Faktor pertama adalah konsentrasi asam stearat yang terdiri dari 3 taraf, yaitu 0,4%, 0,5% dan 0,6%. Faktor kedua adalah konsentrasi amonium molibdat yang terdiri dari 3 taraf, yaitu 1g, 2g dan 3g. Hasil penelitian menunjukkan bahwa interaksi antar perlakuan memberikan pengaruh yang signifikan terhadap parameter pemanjangan, kuat tarik, penyerapan air, ketebalan dan elastisitas. Perlakuan terbaik diperoleh pada penggunaan konsentrasi asam stearat 0,4% dan amonium molibdat 1g yang menghasilkan nilai kuat tarik sebesar 13,85 MPa, nilai pemanjangan sebesar 3,60%, nilai elastisitas sebesar 384,93 MPa, nilai penyerapan air sebesar 0,81% dan nilai ketebalan bioplastik sebesar 0,23 mm. Kesimpulan yang didapatkan dari penelitian ini yaitu perlakuan konsentrasi asam stearat 0,4% dan amonium molibdat 1g merupakan perlakuan terbaik yang mampu memberikan respon terhadap tingkat kematangan buah alpukat berupa perubahan warna kemasan yang dihasilkan. Abstract Smart packaging is packaging that has the ability to provide information about the quality of packaged products directly by utilizing a number of compounds that act as indicators of the quality of the packaged product, so that research on smart packaging is feasible. This study was conducted to obtain the influence of stearic acid concentrations and ammonium molybdate on the physical characteristics of bioplastic smart packaging; determine the treatment that produces the physical characteristics of the best bioplastic smart packaging according to SNI and get the response of bioplastic smart packaging indicators to the maturity level of avocado fruit. This study used a two-factor Randomized Group Design. The first factor is the stearic acid concentration which consists of 3 levels, specifically 0.4%, 0.5%, and 0.6%. The second factor is the concentration of ammonium molybdate which consists of 3 levels, specifically 1g, 2g, and 3g. The results showed that the interaction between treatments had a significant influence on the parameters of elongation, tensile strength, swelling, thickness, and elasticity. The best treatment was obtained in the use of a stearic acid concentration of 0.4% and 1g of ammonium molybdate which resulted in a tensile strength value of 13.85 MPa, elongation value of 3.60%, an elasticity value of 384.93 MPa, a swelling value of 0.81% and a bioplastic thickness value of 0.23 mm. The conclusion of this study is that the treatment of stearic acid concentration of 0.4% and 1g of ammonium molybdate is the best treatment that is able to respond to the maturity level of avocado fruits in the form of a change in the color of the resulting packaging.
Teknik Pendinginan dengan Konsentrasi Es Kering dan Lama Waktu Penyimpanan Dingin terhadap Mutu Sawi Putih Ni Wayan Diana Sepriani; Ida Ayu Rina Pratiwi Pudja; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p10

Abstract

Abstrak Sawi putih merupakan salah satu sayuran yang memiliki nilai gizi cukup tinggi sebagai sumber vitamin dan mineral. Penelitian ini bertujuan untuk memperoleh lama waktu penyimpanan dan suhu terbaik selama penyimpanan dingin terhadap mutu sawi putih. Rancangan Percobaan Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) satu faktor yang terdiri dari 3 taraf yaitu (P0) sebagai kontrol/tanpa es kering, (P1) menggunakan 1 kg es kering dan (P2) menggunakan 2 kg es kering yang di simpan dalam kotak styrofoam selama 8 jam dengan waktu pengamatan setiap 0 jam, 2 jam, 4 jam, 6 jam dan 8 jam untuk memvalidasi penelitian ini maka dilakukan pengulangan sebanyak tiga kali ulangan. Parameter yang diamati pada penelitian meliputi suhu bahan, laju pendinginan, susut bobot, color difference, dan umur simpan. Hasil penelitian menunjukkan bahwa penggunaan es kering dapat mempertahankan mutu sawi putih di bandingkan dengan tanpa menggunakan es kering pada waktu penyimpanan. Waktu penyimpanan terbaik yaitu 8 jam dan suhu terbaik yaitu 13oC sampai dengan 10oC. Jumlah es yang dibutuhkan untuk mencapai suhu optimal pada penyimpanan dingin adalah lebih dari 1 kg dan atau kurang dari atau sama dengan 2 kg es kering untuk 3 kg sawi putih. Abstract Chinese cabbage is one of the vegetables that have a high enough nutritional value as a source of vitamins and minerals. This study aims to obtain the best storage time and temperature during cold storage on the quality of Chinese cabbage. Experimental Design This study used a one-factor Completely Randomized Design (CRD) consisting of 3 levels, namely (P0) as a control/without dry ice, (P1) using 1 kg of dry ice, and (P2) using 2 kg of dry ice stored in a styrofoam box for 8 hours with observation times every 0 hours, 2 hours, 4 hours, 6 hours and 8 hours to validate this research, it was repeated three times. Parameters observed in this study include material temperature, cooling rate, weight loss, color difference, and shelf life. The results showed that the use of dry ice could maintain the quality of cabbage compared to those without using dry ice during storage. The best storage time is 8 hours and the best temperature is 13oC to 10oC. The amount of ice needed to reach the optimal temperature in cold storage is more than 1 kg or less than or equal to 2 kg of dry ice for 3 kg of Chinese cabbage.
Dinamika Suhu dan Kelembaban Udara pada Penyimpanan Kentang (Solanum tuberosum L.) Bibit Tipe Para-Para M Ikram; Yohanes Setiyo; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p16

Abstract

Abstrak Petani di Bali belum mampu menghasilkan bibit yang baik akibat kegagalan di tahap penyimpanan dan masih tergantung pada bibit kentang kelompok G2-G4 yang didatangkan dari luar. Tujuan penelitian ini adalah untuk mengetahui dinamika suhu udara dan kelembaban udara (RH) selama penyimpanan kentang bibit dan perubahan fisik umbi bibit kentang hasil penyimpanan. Parameter yang diukur antara lain suhu dan kelembaban selama penyimpanan kentang, analisis neraca massa dan energi, perhitungan panas respirasi, panas untuk menaikan suhu kentang, panas untuk menguapan air serta panas yang hilang ke lingkungan dengan pendekatan model matematik sederhana. Hasil penelitian menunjukkan bahwa suhu cenderung membentuk pola polinomial orde dua atau kuadratik, sedangkan RH cenderung membentuk pola linier. Suhu ruang penyimpanan kentang berada pada kisaran 29,50 ºC - 29,09 ºC dan RH berada pada kisaran 73,00% - 81,80%. Nilai panas respirasi bervariasi antara 470,26 - 491,30 Watt. Panas yang dihasilkan dari proses respirasi adalah sebesar 72 -143 watt, panas untuk menaikan suhu umbi kentang sekitar kentang adalah 2,02 Watt; 1,81 Watt; 3,80 Watt; 2,60 Watt; 10,70 Watt; dan 15,20 Watt. Panas yang hilang ke lingkungan membentuk pola linier. Para-Para mampu menciptakan kondisi penyimpanan dan penyediaan oksigen yang, untuk perubahan fisik hampir tidak ada. Abstract Farmers in Bali have not been able to produce good seeds due to failures at the storage stage and are still dependent on potato seeds from the G2-G4 group imported from outside. The aim of this study was to determine the dynamics of air temperature and humidity (RH) during the storage of potato seeds and the physical changes of potato seed tubers after storage. Parameters measured included temperature and humidity during storage of potatoes, analysis of mass and energy balances, calculation of respiration heat, heat for increasing the temperature of potatoes, heat for water evaporation, and heat lost to the environment with a simple mathematical model approach. The results showed that temperature tends to form a quadratic polynomial pattern, while RH tends to form a linear pattern. The temperature of the potato storage room was in the range of 29.50 ºC - 29.09 ºC and the RH was in the range of 73.00% - 81.80%. Respiration heat value varies between 470.26 - 491.30 Watts. The heat generated from the respiration process is 72 -143 watts, the heat to raise the temperature of the potato tubers around the potatoes is 2.02 Watts; 1.81 Watts; 3.80 Watts; 2.60 Watts; 10.70 Watts; and 15.20 Watts. The heat lost to the environment forms a linear pattern. Para-Para is capable of creating conditions for the storage and supply of oxygen that, for physical change, are almost non-existent.
Co-Authors Ali Husyain Sakti Arief Sabdo Yuwono Dandy Zulfikar Sulthan Siata Desak Agung Hepi Dewa Bagus Putu Prabha Diptaya Gede Jaya Kusuma Putra Guna, Kadek Mahendra Adhi Gusti Bagus Eka Chandra Hadi K. Purwadaria Handayani Nofiyanti, Sri Henggar Jaya, Gigieh I B Werdi Putra I Dewa Gde Mayun Permana I Gusti Ayu Lani Triani I Gusti Ketut Arya Arthawan I Gusti Ketut Arya Arthawan I Gusti Ngurah Apriadi Aviantara I K. Satriawan I Kadek Ari Andika I Made Andi Purnama Wijaya I Made Anom Sutrisna Wijaya I Made Dwijantara Putra I Made Merta I Made Mudiarta I Made Nada I Made Nanda Suastika I Made Sudana I Made Suphartha Utama I NYOMAN RAI I Nyoman Semadi I Nyoman Sucipta I Putu Gde Suhartana I Putu Gede Budisanjaya I Putu Surya Wirawan I Putu Tantra Ardika I Wayan Arsa I Wayan Budiarta I Wayan Edy Wirawan I Wayan Krispedana I Wayan Satrio Wiantara I Wayan Sugiana I Wayan Tika I Wayan Tika I Wayan Widia I Wayan Widia I WAYAN WIRAATMAJA I. A. G. Bintang Madrini Ida Ayu Inten Dwi Sulatri Ida Ayu Mahatma Tuningrat Ida Ayu Rina Pratiwi Pudja Ida Ayu Rina Pratiwi Pudja Ida Ayu Rina Puja Ida Bagus Putu Gunadnya Ida Bagus Wayan Gunam Jarinsen Yanardo Purba Kadek Mila Adiani KETUT BUDI SUSRUSA Komang Sri Diah Nirmala Dewi Komang Suteja Pramana Lutfi Suhendra M Ikram M. Ahkam Subroto Made Arya Bhaskara Putra MADE MERTA Made Pila Putra Made S Utama Merisa - Aritonang Muhdan Syarovy Muna, Mukhes Sri Ni luh Devi Widyanti Ni Luh Putu Sarasulistian Ni Luh Trimayanti Ni Luh Yulianti Ni Made Eva Yulia Dewi Ni Nyoman Sulastri Ni Putu Ayu Prya Chandani Ni Putu Yuliasih Ni Putu Yuliasih Ni Wayan Diana Sepriani NYOMAN SEMADI ANTARA Putu Citra Dewi Rina Pratiwi Pudja I. A Ronni Agriva Sembiring roy zulkarnaen Sebastiao Massa Sukma Elvayani, I Gusti Ayu Evi Sumiyati - Sumiyati - Sumiyati Sumiyati Sumiyati Sumiyati Sumiyati Utama, Made S Wayan Tika Yosika, Nur Ida Winni Yudha Kristyanto Leksono Zainul Arifin