Murtiningrum Murtiningrum
Mahasiswa Program Magister Matematika, Departemen Matematika FMIPA Universitas Indonesia

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Pemanfaatan pasta buah merah (pandanus conoideus L) sebagai bahan substitusi tepung ketan dalam pembuatan dodol Murtiningrum, Murtiningrum; Silamba, Isak
Jurnal AGROTEKNOLOGI Vol 4, No 1 (2010)
Publisher : Jurnal AGROTEKNOLOGI

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Abstract

The objectives of the reserach are to obtain the best dodol formulation of by using red fruit pasta as substitution ingredient of waxy rice flour, and to know its physicochemical electrophoresis properties and panelist preferences. The ratio between .........
Assessment of Irrigation System Performance and Its Associated Impacts on Poverty Murtiningrum, Murtiningrum; Arif, Sigit Supadmo
Agritech Vol 25, No 1 (2005)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.13373

Abstract

It is indicated that the level of performance of an irrigation systefrz affects the benefit received by farmers. Low level of performance leads on the low farmers income, which furthermore affects farmers welfare. On the opposite, farmers with low level of welfare have limited capability to manage their irrigation system so the level of performance of the system declines. This created a vicious circle of low performance and poverty. This paper aims to assess irrigation system peformance, relate the performance with poverty in the system, and examine possibilites of poverty alleviation through improvement of irrigation system performance. Irrigation performance assessment comprises of characterization of irrigation system and performance assessment by using indicators. The study has been conducted in four irrigated systems in Java, namely Klambu Kiri, Glapan, Kalibawang, and Krogowanan. Lesson learnt were drawn from cases of the selected systems to find out factors affecting irrigation performance and how irrigation system performance affects farmers welfare. Possible efforts to improve irrigation system performance to alleviate poverty are crop diversification, Irrigation Management Transfer, empowerment of Water Users Association (WUA), locally specific farming, and off farm job opportunity. To implement those efforts there are some constraints to deal with, such as limited technical capability of farmers, diversity of social and culture, and limited available data and information.
TRAIL EULER MINIMAL DI DALAM GRAF BERARAH YANG TERBOBOTI Julaeha, Siti; Murtiningrum, Murtiningrum; Novrida, Rida; Nugroho, Endang Retno
JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK
Publisher : JURNAL ISTEK

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Abstract

Suppose G is a Eulerian directed graph with an edge labeling. In this paper will discuss the literature studies an algorithm to construct Euler trail that starts at a node r with the lexicographic minimum label among all Euler trail that starts node r is.
Morfologi Buah Selama Tahap Perkembangan Buah Merah (Pandan Santoso, Budi; Murtiningrum, Murtiningrum; Sarungallo, Zita L.
Agrotek Vol 2, No 6 (2011): Agrotek
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.30862/agt.v2i6.533

Abstract

Mengukur Kinerja Manajemen Irigasi dengan Pendekatan Teori Himpunan Kekaburan: Kajian Kasus di Daerah Irigasi Van Der Wijck Arif, Sigit Supadmo; Murtiningrum, Murtiningrum; Basuki, Rochmad
Agritech Vol 27, No 2 (2007)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.9494

Abstract

This paper aims to make a comparation between the performance of irrigation system in early irrigation policy reform and that of the recent condition. Van der Wijck Irrigation System in Yogyakarta was chosen as case study. Early data was collected through questioner and participatory method. Fuzzy set theory was employed to determine the most unsustainable aspect for the irrigation system. It revealed that economic aspect was the most threaten aspect. Because of abundant water, farmers in the upper area of Van der Wijck grow rice in the entire year. However, farmers received very small amount income from their land. Recently most of them convert their rice fields into shrimp ponds because it financially gives more benefit. On the other hand this sectoral development created upper-lower conflicts among water users within the system. This policy change would affected technology and management in the system.ABSTRAKPaper ini bertujuan untuk membandingkan kinerja sistem irigasi pada awal pemberlakuan reformasi kebijakan irigasi dengan kinerja saat ini. Daerah Irigasi Van der Wijck di Yogyakarta dipilih sebagai kajian kasus. Data awal dikumpulkan dengan kuesioner maupun secara partisipatif. Teori himpunan kekaburan digunakan untuk mengetahui aspek yang paling tidak berlanjut dalam sistem irigasi. Hasilnya menunjukkan bahwa aspek ekonomi merupakan aspek yang paling terancam. Karena banyaknya air, petani di daerah hulu Daerah Irigasi Van der Wijck membudidayakan padi sepanjang tahun, namun petani tidak menerima banyak keuntungan dari budidaya ini. Beberapa tahun terakhir ini, banyak petani mengkonversi sawahnya menjadi tambak udang yang secara ekonomis memberikan banyak keuntungan. Meskipun demikian, pengembangan secara sektoral ini menimbulkan konflik hulu-hilir antar pengguna air dalam sistyem irigasi. Perubahan kebijakan ini dapat berpengaruh pada teknologi dan manajemen di dalam sistem irigasi.
PERKEMBANGAN BIODIESEL DI INDONESIA TINJAUAN ATAS KONDISI SAAT INI, TEKNOLOGI PRODUKSI & ANALISIS PROSPEKTIF Murtiningrum, Murtiningrum; Firdaus, Alfa
Jurnal PASTI Vol 9, No 1 (2015): Jurnal PASTI
Publisher : Jurnal PASTI

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Abstract

Biofuel sebagai energi terbarukan yang berpotensi untuk menggantikan peran bahan bakar minyak (BBM) belum dimanfaatkan secara maksimal di Indonesia. Pemerintah Indonesia ingin memenuhi suplai biodiesel dari industri nasional dengan penerapan mandatori penggunaan biodiesel, namun target mandatori belum terpenuhi karena pasar biofuel dalam negeri belum menarik minat pengusaha.Celah antara kapasitas produksi dengan capaian produksi masih sekitar 25% atau 1,11 juta kilo liter. Hal ini direspon oleh pemerintah dengan menerapkan CPO Fund untuk  mendorong produksi bahan bakar nabati biodiesel.Menyikapi berbagai kebijakan yang telah dikeluarkan oleh pemerintah, diperlukan ulasan mengenai kondisi terkini dari sektor biodiesel dengan tujuan untuk mendapatkan gambaran yang komprehensif dari sektor biodiesel dengan mengulas kondisi saat ini, perkembangan teknologi produksi, dan analisis prospektif.Hasil dari analisis prospektif didapatkan bahwa arah pengembangan biodiesel harus dimulai dari teknologi produksi biodiesel untuk mencapai peningkatan hasil produksi dengan biaya yang murah Karenanya, pada makalah ini kami mengusulkan teknologi produksi biodiesel in situ transesterifikasi yang akan memberikan peluang teknologi yang lebih ekonomis dibandingkan teknologi produksi esterifikasi-transesterifikasi konvensional.Kata kunci: biodiesel, analisis prospektif, transesterifikasi in situ
PERKEMBANGAN BIODIESEL DI INDONESIA TINJAUAN ATAS KONDISI SAAT INI, TEKNOLOGI PRODUKSI & ANALISIS PROSPEKTIF Murtiningrum, Murtiningrum; Firdaus, Alfa
Jurnal PASTI Vol 9, No 1 (2015): Jurnal PASTI
Publisher : Jurnal PASTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2633.018 KB)

Abstract

Biofuel sebagai energi terbarukan yang berpotensi untuk menggantikan peran bahan bakar minyak (BBM) belum dimanfaatkan secara maksimal di Indonesia. Pemerintah Indonesia ingin memenuhi suplai biodiesel dari industri nasional dengan penerapan mandatori penggunaan biodiesel, namun target mandatori belum terpenuhi karena pasar biofuel dalam negeri belum menarik minat pengusaha.Celah antara kapasitas produksi dengan capaian produksi masih sekitar 25% atau 1,11 juta kilo liter. Hal ini direspon oleh pemerintah dengan menerapkan CPO Fund untuk  mendorong produksi bahan bakar nabati biodiesel.Menyikapi berbagai kebijakan yang telah dikeluarkan oleh pemerintah, diperlukan ulasan mengenai kondisi terkini dari sektor biodiesel dengan tujuan untuk mendapatkan gambaran yang komprehensif dari sektor biodiesel dengan mengulas kondisi saat ini, perkembangan teknologi produksi, dan analisis prospektif.Hasil dari analisis prospektif didapatkan bahwa arah pengembangan biodiesel harus dimulai dari teknologi produksi biodiesel untuk mencapai peningkatan hasil produksi dengan biaya yang murah Karenanya, pada makalah ini kami mengusulkan teknologi produksi biodiesel in situ transesterifikasi yang akan memberikan peluang teknologi yang lebih ekonomis dibandingkan teknologi produksi esterifikasi-transesterifikasi konvensional.Kata kunci: biodiesel, analisis prospektif, transesterifikasi in situ
MODEL MATEMATIKA PERTUMBUHAN JUMLAH ANAKAN DAN TINGGI TANAMAN PADI YANG DITANAM DENGAN METODE SRI Murtiningrum, Murtiningrum; Purba, Willy Adi; Lubis, Sewan Delrizal; Wardana, Wisnu
JURNAL AGROTEKNOLOGI Vol 5 No 02 (2011)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

The food requirement in Indonesia is highly dependent on rice and its requirement is increasing. On the other hand, the avalability of natural resource especially land and water are getting more limited. Consequently,there is a need to increase rice production with efficient resources. On the other hand, there is a necessity to apply sustainable agriculture. SRI (System of Rice Intensification) method was developed to deal with the problems. In the field, the SRI method still shows a wide variation of yields, therefore researches are necessary to reveal the phenomena behind this method. This paper aims to develop mathematical models of rice tillers and plant height of rice growth as well as to compare the growth of rice plants at several locations and treatments. Mathematical models developed were the rice tillers’ growth model which follow the exponential polynomial function order 2 and the crop heights model which follow the monomolekuler function. The number of seedlings from one seed planted in SRI would result more tillers than conventional crops after more than 30 days after planting. Conventional crop height was relatively higher than that of SRI because close spacing and inorganic fertilizers trigger vegetative growth.Keywords: mathematical model, SRI, crop physiology, rice
Karakterisasi Umbi dan Pati Lima Kultivar Ubi Kayu (Manihot esculenta) Murtiningrum, Murtiningrum; Bosawer, Elvis F.; Istalaksana, P.; Jading, Abadi
Agrotek Vol 3, No 1 (2012): Agrotek
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.30862/agt.v3i1.557

Abstract

The aim of this research was to evaluate the chemical composition of tubers and cassava starch and cassava starch physical Masni District. This study consists of three (3) stages: preparation of materials and chemical characterization of fresh tubers, starch extraction and chemical and physical characterization of cassava. Extraction is done by using a 3:1 ratio of water and tubers. The results showed that the starch content of the fresh tubers ranged from 13.12% to 46.09% while the starch content of cassava starch between 81.40% to 89.55%. Amylose starch levels ranged from 12.28% to 27.38% while the amylopectin content ranged from 72.61% to 87.71%. Starch granule shape is round, round cut, elliptical with a size ranging between 5-25 ?m, the temperature ranges from 65-69oC gelatinization and power development starches ranged from 1.42 to 26.65.
Optimalisasi Penggunaan Pompa dalam Sistem Irigasi dengan Metode Analytical Hierarchy Process di Daerah Irigasi Pacal, Kabupaten Bojonegoro Murtiningrum, Murtiningrum; Masithoh, Rudiati Evi; Jatmiko, Meiana Wahyu
Agritech Vol 27, No 2 (2007)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.9493

Abstract

Pacal Irrigation System in Bojonegoro District is an irrigation system designed to apply surface irrigation gravitationally. Pump uses to abstract irrigation water from canals to irrigate rainfed area outside the system was against the original design. This paper aims to develop the decision making model to decide optimum pump use to achieve optimum operation pattern. The choice of optimum operation pattern was developed using the Analytical Hierarchy Procees (AHP) method to meet the irrigation management aspects. Alternatives of pump operation used were no pump, 68 pumps, 47 pumps, and 21 pumps. Criterias to choose pump operation pattern were RWS, RIS, KPA, efektiveness dan eficiency. The results showed that main criterias to affect the choice of pump operation patteren were RWS and RIS with proportion as 40,73% and 28,19% respectively. Considering all criterias, the optimum pump operation pattern was operation with 47 pumps.ABSTRAKDI Pacal di Kabupaten Bojonegoro adalah sistem irigasi teknis yang didesain untuk menerapkan irigasi permukaan dengan cara gravitasi. Penggunaan pompa yang mengambil air dari saluran irigasi untuk mengairi lahan tadah hujan di luar wilayah DI Pacal tidak sesuai dengan desain awal sistem irigasi teknis tersebut. Tujuan penelitian ini adalah membuat model pengambilan keputusan untuk penggunaan pompa dalam operasi sistem irigasi untuk mendapatkan pola operasi optimal. Pemilihan pola operasi optimal menggunakan metode The Analytical Hierarchy Procees (AHP) dengan penyesuaian dari aspek manajemen irigasi. Alternatif pola operasi yang digunakan adalah operasi tanpa pompa, operasi 68 pompa, operasi 47 pompa dan operasi 21 pompa. Kriteria yang mempengaruhi pemilihan pola operasi berupa RWS, RIS, KPA, efektivitas dan Efisiensi. Hasil analisa menunjukkan bahwa kriteria utama yang mempengaruhi pemilihan pola operasi optimal adalah RWS sebesar 40, 73% dan RIS sebesar 28,19%. Ditinjau dari berbagai kriteria, alternatif operasi dengan 47 pompa merupakan pola operasi optimal.