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PERANCANGAN MESIN PENGHANCUR SAMPAH ORGANIK PADAT PERKOTAAN

Agrotekno Vol. 15, No. 1 Februari 2009
Publisher : Agrotekno

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Abstract

Handling municipal garbage still becomes an ever ending problem. One way to tackle this problem is to utilize the garbage as organic fertilizer. The most promising technology in converting aerobically this rubbish to organic fertilizer is known as open windrow, but the success of implementing this technology is depended upon particle size of the garbage. So, chopping machine is needed to reduce it into a homogeneous size and constructing a chopping machine became the objective of the research. Tests on physical of the machine and its performance indicated that the designed machine was better than the machine that has already been available in the field. The size of chopped garbage was relatively homogeneous and its value was 10% better than that yielded form the older machine.

KURSUS SINGKAT DAN PELATIHAN PEMANFAATAN PEPAYA (CARISA PAPAYA L.) MENJADI MANISAN KERING BUAH PEPAYA DI DESA TIMUHUN, KECAMATAN BANJARANGKAN, KABUPATEN KLUNGKUNG

Jurnal Udayana Mengabdi Volume 7 No.1 – April 2008
Publisher : Jurnal Udayana Mengabdi

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Abstract

ABSTRACT In Desa Timuhun, eventhough papaya is not primary fruit product, but usually papaya is planted among the other plants and easily to grow. Papaya has good potency to be processed to become food product. Matured papaya fruit is usually fresh served for desk fruit. On the other hand, for papaya which is not mature yet, usually used for vegetable. Papaya has high water content, so it makes papaya fruit easy to experience damage. With papaya processing, papaya which is originally assumed improper to be sold or to be consumed (mechanical damage, diseased, acid, physical damage) and will only to be thrown, finally can be used. The making of papaya dry candy is one of effort to preserve and to vary form of papaya serving. It also improves the economic value of papaya. The making of papaya can be conducted in big or small scale. The activity objectives are to introduce and give additional knowledge to society about papaya processing technology, to increase economic added value of papaya and the using of papaya which is improper to be sold or to be consumed becoming valuable food product .Realization of the objectives above are by performing an information sharing and discussion with the society about process of the making dry candy from papaya, training of papaya dry candy making, introduce simple technology of dry candy papaya making. This activity was performed at the head of Desa Timuhun office, on Friday, September 14, 2007 and was attended by 26 persons, including association of woman farmer and the staff in that office. The result of this activity shows that there was positive response of people who attend this activity, because by processing papaya fruit into dry candy, have a lot of advantage compare to sale it freshly. Beside that, this dry candy is healthy snack, without synthetic preservation, enriched with vitamins which is useful for health, also this dry candy is still good up to 1 month and of course it could to improve economic value compared to be sold freshly

Beban Kerja dan Produktivitas Kerja Operator Traktor Tangan Pada Pembajakan Sawah ’Subak Ayo’ di Desa Babahan, Kecamatan Penebel, Kabupaten Tabanan Bali

Rona Teknik Pertanian Vol 7, No 1 (2014): Volume 7, No. 1, April 2014
Publisher : Program Studi Teknik Pertanian, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Abstrak. Penelitian dengan metode survei, dari hasil penelitian diperoleh beban kerja objektif pekerja 1  dengan denyut nadi per menit pada pembajakan sawah datar, saat memindahkan traktor tangan dari sawah satu ke sawah yang lain dan miring masing-masing yaitu 111/menit, 123/menit dan 125/menit serta pekerja 2 dengan denyut nadi per menit pada pembajakan yang sama yaitu 114/menit, 120/menit dan 120/menit. Beban kerja subjektif pekerja 1 dengan keluhan sistem muskuloskeletal pada pembajakan sawah datar dari agak sakit 50% dan sakit 28,57%, pada saat memindahkan traktor tangan dari sawah satu ke sawah yang lain dengan prosen keluhan agak sakit5 3,57%, sakit 32,14% dan sakit 3,57%, dan pada sawah miring  dengan prosen keluhan agak sakit 60,71% dan sakit 50% serta pekerja pada pembajakan yang sama mempunyai keluhan muskoluskeletal masing-masing yaitu agak sakit 10,71% , 21,43%  dan agak sakit 25%. Produktivitas pekerja 1 dan pekerja 2 yaitu luas sawah per hari 10,45 are dengan penghasilan sebesar Rp.188,100 dan luas sawah 16,09 are dengan penghasilan sebesar Rp. 289,620 Productivity and Work Load of Hand Tractor Operator for Plowing Field of Subak Ayo’ in Babahan Village, Sub-district of Penebel, Tabanan BaliAbstract. This research was conducted by survey method. The results showed that operator’s objective load of operator 1 showed heartbeat per minutes when he plough flat and sloping land, when he moved his hand tractor from one part to other  fields were 111 heartbeats/minute, 123 heartbeat/minute and 125 heartbeat per minute respectively. Operator 2 working in the same works include 114 heartbeats/minute, 120 heartbeats/minute and 120 heartbeats/minute. Operator’s subjective load on operator 1 showed musculoskeletal system lamentation  on flat land  plough that were 50% less painful, and 28,57% painful when he moved the hand tractor on with percentage of lamentation were 53.57% less painful, 32.14 painful, and 3.57% very painful. On the other hand, he showed the percentage of lamentation on slopping land were 60.71 less painful, 50% painful. The research also found that the operators showed musculoskeletal system lamentation, that were 10.71% less painful and 21,43% painful and 25% very painful. Operator’s productivity of operator 1 and 2 per day was 0,11 hectare with income Rp. 188.100 and on 0,16 hectare, it generated income as high as Rp. 289,620.

Model Pengeringan Lapisan Tipis Rebung Bambu “Tabah” (Gigantochloa nigrociliata KURZ)

Rona Teknik Pertanian Vol 9, No 1 (2016): Volume 9, No. 1, April 2016
Publisher : Program Studi Teknik Pertanian, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Abstrak. Rebung bambu tabah (Gigantochloa nigrociliata KURZ) merupakan produk khas daerah Pupuan, Tabanan, Bali yang mempunyai potensi untuk dikembangkan sebagai produk yang bernilai ekonomis. Kajian awal proses pengeringan rebung untuk meningkatkan umur simpan rebung bambu Tabah dilakukan pada penelitian ini. Kurva laju pengeringan rebung bambu Tabah memberikan informasi penting untuk proses pengeringan. Oleh karena itu, tujuan penelitian ini adalah mempelajari karakteristik laju pengeringan rebung bambu Tabah melalui aplikasi model pengeringan lapisan tipis. Rebung bambu Tabah yang dibelah menjadi dua dan empat bagian dikeringkan pada suhu 50oC, 60oC, dan 70oC. Perubahan kadar air setiap saat kemudian dimodelkan dengan model Newton dan Page. Kesesuaian model yang digunakan dievaluasi dengan menentukan nilai koefisien determinasi (r2) dan RMSE dari model. Hasil menunjukkan bahwa model Page lebih baik digunakan untuk memodelkan pengeringan rebung bambu Tabah pada semua perlakuan. Model Newton menunjukkan ketidaksesuaian yang sangat tinggi pada suhu 50oC namun kesesuaiannya meningkat pada suhu yang lain.  Thin Layer Drying Model of Bamboo Shoots “Tabah” (Gigantochloa nigrociliata KURZ) Abstract. Bamboo shoots Tabah (Gigantochloa nigrociliata KURZ) is a unique product of Pupuan District, Tabanan, Bali which is potent to be developed as highly value product. Preliminary study of the bamboo shoots drying to enhance its storage life was conducted in this research. Bamboo shoots Tabah’s drying rate curve give an important information for its drying process. Therefore, the aim of this research was to study the characteristics of bamboo shoots Tabah drying by applying thin layer drying models. Bamboo shoots split into two and four pieces were dried under drying air temperatures 50oC, 60oC, and 70oC. Instantaneous moisture content of the shoots are modeled by Newton and Page model. The goodness of the models were evaluated by determining its coefficient of determination (r2) and RMSE. The results showed that Page model was better to model the bamboo shoots Tabah drying process on all drying treatments. The Newton Model indicated the worst fit on drying air temperature 50oC while showed better fit on other temperatures.

Studi Kombinasi Lama Fermentasi, Jenis Wadah dan Suhu Pengeringan Terhadap Karakteristik Kakao Kering

Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 3 No 1 (2018)
Publisher : Universitas Udayana

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Abstract

Tujuan penelitian ini adalah  mengkaji karakteristik biji kakao kering yang dihasilkan dari proses fermentasi dalam sekala kecil dan  mengkaji pengaruh penggunaan  wadah fermentasi yang berbeda pada kapasitas kecil, lama fermentasi serta pebedaan suhu pengeringan terhadap kualitas biji kakao kering yang dihasilkan.  Penelitian ini menggunakan Rancangan Acak Kelompok dengan tiga faktor. Faktor pertama adalah wadah fermentasi (A) yang terdiri dari dua jenis yaitu wadah kotak kayu dan wadah karung.  Faktor kedua adalah lama fermentasi (B) yang terdiri dari dua taraf yaitu  5 hari dan 6 hari. Faktor tiga adalah suhu pengeringan (C) yang terdiri dari 50o C dan 60o C. Masing-masing perlakuan diulang sebanyak 2 kali. Hasil penelitian menunjukan bahwa perlakuan biji kakao yang difermentasi dalam wadah kotak kayu selama 6 hari dan dikeringkan pada suhu 50oC (W1L350) menunjukkan karakteristik biji kakao yang baik, selanjutnya perlakuan tersebut merupakan perlakuan yang direkomendasikan sebagai perlakuan terbaik.

Analisis Efisiensi Biaya Distribusi Pupuk Bersubsidi di Wilayah Kabupaten Klungkung Menggunakan Metode Transportasi

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

The aim of this research was to determine the distribution pattern of subsidized fertilizer in Klungkung regency, as well as to determine the distribution pattern of subsidized fertilizer that produced the minimum distribution cost. The research method used in the study, were a survey, measuring the distance and collect secondary data. The survey was conducted to official distributors to obtain the amount of farmer groups which recieved the subsidized fertilizer. The information of farmer groups’ distance to the official distributors, received fertilizer, and the cost spent to distribute the fertilizer were needed to calculate the unit cost of distribution. All of those information were obtained by field survey and direct measurement in location. The data obtained then was analyzed by applying three methods of transportation that was North West Corner Method, the Lowest Cost Method and The Vogel's Approximation Method. The results indicated that the methods produced different costs in which the minimum distribution cost by Rp 6.065.846,00 was produces by the Lowest Cost Method. The value of the result is vsame with the transportation minimum cost that produced by the distribution pattern of subsidized fertilizer at this time in Klungkung regency, so it can be concluded that the distribution pattern of subsidized fertilizer in Klungkung regency at this time is meeting with the all criteria distribution pattern with transportation minimum cost.

Aplikasi Penggunaan Asap Cair terhadap Daya Awet Fillet Ikan Tuna

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Tuna fish is a commodity of fishery products is very easly get change of the quality. Preservation is needed to prolong the life of save the fish especially at the time when the fish season and so that the fish can reach the consumer before experiencing the decay. Preservation technology that can be applied is the giving of liquid smoke because the ingredients contain fenol who act as antioxidants. Objective of this research is to find out the shelf life of tuna fish fillets by using the liquid smoke as preservatives and stored at room temperature (27o). This research uses the method ESS (Extended Storage Studies) obtained from sensory test during storage with determine the gladness of the appearance, color , smell, texture and other parameters observed namely pH test, the level of water and protein test. Based on the research results obtained using the method ESS, shows that the quality of tuna fish fillets with the addition of liquid smoke is best obtained on the treatment of liquid smoke concentration of 6% with long storage time during 54 hours, with the main quality parameters cause damage obtained from pH test results and sensory test. Keywords:Tuna fish, liquid smoke, sensory test, shelf life, ESS