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

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KARAKTERISTIK MUTU MIKROENKAPSULAT MINYAK BUAH MERAH (PANDANUS CONOIDEUS) DENGAN PERBANDINGAN KONSENTRAS Sarungallo, Zita Letviany; Santoso, Budi; Murtiningrum, Murtiningrum; K. Roreng, Mathelda; Murni, Venny
Pro Food Vol 5 No 2 (2019): Pro Food (Jurnal Ilmu dan Teknologi Pangan)
Publisher : Fakultas Teknologi Pangan dan Agroindustri, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.179 KB) | DOI: 10.29303/profood.v5i2.119

Abstract

ABSTRACT             Red fruit oil is very sensitive to oxygen. One effort that can be done to improve its stability is using microencapsulation technology. This study aims to produce a stable formula of red fruit oil microencapsulated with the best quality characteristics. Formulation of emulsion of red fruit oil to be encapsulated using 11% degumed red fruit oil, mixture of emulsifier and stabilizer (maltodextrin, gum arab, gelatin, tween 80 and Carboxymethyl Celluloce (CMC)) 22%, and water 67%. The emulsion materials are homogenized and dried using a spray dryer. The parameters observed include the color, viscosity and stability of the emulsion, as well as the physicochemical character and the active components of red fruit microcapsules inamely rendemen, color, moisture content, solubility, total carotenoids and carotenoid retention. The results of this study indicate that the concentration of the coating material and the stabilizer affect the quality of the resulting red fruit oil microencapsules. The formula of stable red fruit oil microenkapulates (F4 and F5) consisting of degummed red fruit oil (11%), maltodextrin (18%), gum arab (1.8-2.6%), gelatin (0.9-1.3%) ), CMC (0.4%) and tween 80 (0.4-0.9%). Comparison of oil fraction, fraction of dry matter and water fraction which can form microencapsulated red fruit oil comprises 11% degummed red fruit oil, 22% emulsifier, coating and stabilizer; and water 67%. Characteristics of red fruit oil microenkapsulat (F4 and F5) are old orange color, 29-30% rendement, 24-25% fat content, total carotenoid 108-111 ppm, carotenoid retention 47-48%, and 73-80% solubility. Keywords: microencapsulation, emulsion, red fruit (Pandanus conoideus) oil, carotenoid.   ABSTRAK Minyak buah merah bersifat sangat sensitif terhadap oksigen, salah satu upaya yang dapat dilakukan untuk meningkatkan stabilitasnya yaitu melalui teknologi mikroenkapsulasi. Penelitian ini bertujuan untuk mempelajari karakteristik mutu mikroenkapsulat minyak buah merah dengan perbandingan konsentrasi bahan pengemulsi (tween 80 dan CMC) dan bahan pelapis (maltodekstrin, gum arab dan gelatin). Formulasi emulsi minyak buah merah yang akan dienkapsulasi menggunakan minyak buah merah hasil degumming 11%, campuran bahan pengemulsi dan penstabil (maltodekstrin, gum arab, gelatin, tween 80 dan CMC) 22% dan air 67%. Bahan-bahan emulsi dihomogenisasi dan dikeringkan menggunakan spray dryer. Parameter yang diamati meliputi warna, kekentalan dan stabilitas emulsi, serta sifat fisikokimia (rendemen, warna, kelarutan, kadar air dan kadar lemak) dan komponen aktif (total karotenoid dan retensi karotenoid) mikrokapsul buah merah. Hasil penelitian ini menunjukkan bahwa konsentrasi bahan pengemulsi dan pelapis mempengaruhi kualitas mikroenkapsulat minyak buah merah yang dihasilkan. Formula F4 dan F5 adalah mikroenkapsulat minyak buah merah yang paling stabil dengan komposisi minyak buah merah hasil degumming (11%), maltodekstrin (18%), gum arab (1,8-2,6%), gelatin (0,9-1,3), CMC 0,4% dan tween 80 0,4-0,9%. Karakteristik mikroenkapsulat minyak buah merah (F4 dan F5) yaitu warna oranye tua, rendemen 29-30%, kadar lemak 24-25%, total karotenoid 108-111 ppm, retensi karotenoid 47-48%, dan kelarutan 73-80%. Kata Kunci: mikrokapsul, minyak buah merah (Pandanus conoideus), stabilitas minyak.
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 | Full PDF (2924.884 KB) | 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.
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 | Full PDF (246.367 KB) | 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

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
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 | Full PDF (341.468 KB) | 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.
Model Perencanaan Pembangunan Pedesaan Berbasis pada Sektor Pertanian (Studi Kasus Kecamatan Moyudan Kabupaten Sleman) Sutiarso, Lilik; Arif, Sigit Supadmo; Murtiningrum, Murtiningrum
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 | Full PDF (2802.245 KB) | DOI: 10.22146/agritech.13371

Abstract

Sleman, as an area with rapid economic growth, againts the challenge of development in relation with population expansion, local autonomy and good governance. In one hand, there is lack of synergy among development stakeholders, on the other hand. information is ineffectively used during the decision making process. This paper aimed to develop a model of rural development plan based on agricultural sector using two computer softwares,(i) Geographical Information System (GIS) as spasial information system and (ii) Powersim to program the dynamic system behaviour. The model provides information on existing condition and consists of five components namely geography, development function, infrastructure, institution, and data catalog. The model was developed through formulating causal diagrams of development sectors and set it in a dynamic programming. The model was then validated in Moyudan, Sleman for the case of agriculture development, which is showed that the model was valid.
MUTU MIKROBIOLOGIS DRUPA BUAH MERAH (Pandanus conoideus Lamk.) PADA BERBAGAI JENIS KEMASAN SELAMA PENYIMPANAN Roreng, Mathelda Kurniaty; Sarungallo, Zita Letviany; Murtiningrum, Murtiningrum; Santoso, Budi; Latumahina, Rossa MM
AGROINTEK Vol 10, No 2 (2016)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v10i2.2471

Abstract

Microbiological quality is one crucial factor relating to food products quality. This quality can be measured based on the growth level of bacteria and fungi during storage of food product. The objective of this study is to determine the effect of plastic packaging types and different storage conditions on total bacteria and total fungi in fresh red fruit. The experiment was conducted using three treatments of plastic packaging, that is high-density polyethylene (HDPE), low density polyethylene (LDPE) and polypropylene (PP). Additionally, three storage conditions were applied, that is room temperature (27 °C), cold temperature (10 °C) and freezing temperatures (-18° C). The results showed that during storage, freezing conditions inhibited the growth of bacteria and fungi. Meanwhile, the type of plastic packaging did not inhibit the growth of bacteria and fungi.
PENGARUH PREPARASI UBI JALAR (Ipomoea batatas) SEBAGAI BAHAN PENGENTAL TERHADAP KOMPOSISI KIMIA DAN SIFAT ORGANOLEPTIK SAUS BUAH MERAH (Pandanus conoideusL) Murtiningrum, Murtiningrum; Lisangan, M Meilan; Edoway, Yonince
AGROINTEK Vol 6, No 1 (2012)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v6i1.1947

Abstract

The aim of this study was to determine the chemical composition and organoleptic properties of red fruit sauce due to the enriched of sweet potato as thickeners agent that was prepared in different forms. The sweet potatoes were prepared in some form, that was sweet potato starch, sweet potato flour, fresh grated sweet potato and sweet potato boiled and CMC was used for as comparison. The selection of the best treatment sauce formulations based on the total carotene content of the sauce. The red fruit sauce enriched sweet potato boiled as thickeners have the highest content of total carotenoids was 5.529 ppm and water content, ash, fat, protein, and carbohydrate were 75.44%, 8.05%, 59.97%, 8.49%, and  23.54%, respectively.  The panelists preference scores of color, flavor and textur of the best sauce formulation was 3.63 (neutral), 3.47 (neutral) and 4.17 (like), respectively.