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Rachma Wikandari
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Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia
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INDONESIA
agriTECH
Published by Universitas Gadjah Mada
ISSN : 02160455     EISSN : 25273825     DOI : 10.22146/agritech
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agritech with registered number ISSN 0216-0455 (print) and ISSN 2527-3825 (online) is a scientific journal that publishes the results of research in the field of food and agricultural product technology, agricultural and bio-system engineering, and agroindustrial technology. This journal is published by Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta in colaboration with Indonesian Association of Food Technologies (PATPI).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 25, No 1 (2005)" : 6 Documents clear
Model Perencanaan Pembangunan Pedesaan Berbasis pada Sektor Pertanian (Studi Kasus Kecamatan Moyudan Kabupaten Sleman) Lilik Sutiarso; Sigit Supadmo Arif; 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.
Prediksi Aliran Permukaan Menggunakan Modifikasi Model Bilangan Kurva Putu Sudira; Tri Purwadi; Sukresno Sukresno; Meli Nurlaili
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 (1149.153 KB) | DOI: 10.22146/agritech.13372

Abstract

The objectives of the study are (i) to predict surface runoff of watersheds using modification of curve number model, and (ii) to find out the good fit of model application at different size of watersheds. The research was conducted in Padas sub watershed (3356.48 ha)- and Goseng sub watershed (596 ha), upper Solo watershed, Central Java. The data used for analysis were daily rainfall, daily of water level in the stream, soil type, landuse, and minimum infiltration rate from 1998 up to 2002. Surface runoff was calculated using modification of Soil Conservation Service Curve Number Model, which was integrated with the model of SWRRB (Simulator for Water Resources in Rural Basins). The use of curve number model was based on the availability of data such as soil type evaluation, landuse, conservation practices, initial soil moisture contents, and the hydrologic condition of the watersheds. Results indicated that the model was not valid for bigger watershed (Padas sub watershed). This was denoted by low values of correlation coefficient between observed and predicted surface runoff The tws, indicated that observed and predicted surface runoff are significantly different. On the other hand, for the smaller one (Goseng sub watershed) the model was agreed, it was illustrated by no significantly different between observed and predicted surface runoff based on the statistical measures above.
Assessment of Irrigation System Performance and Its Associated Impacts on Poverty Murtiningrum Murtiningrum; Sigit Supadmo Arif
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.
Sifat Antioksidatif Ekstrak Buah Duwet (Syzygium cumini) Lydia Ninan Lestario; Pudji Hastuti; Sri Raharjo; Tranggono Tranggono
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 (2909.677 KB) | DOI: 10.22146/agritech.13374

Abstract

A research on Java plum (Syzygium cumini) fruit as source of natural antioxidant has been done with special emphasis on the role of anthocyanins. The aims of this research were : to determine the extraction condition which include types of solvents, length of time, and temperature of extractions. The solvents combination consisted of : methanol-HC1 1%; acetone; acetone-water (7:3); and water, which were applied for 4, 8, 12 hours extractions at room (27-29°C) and cool room (4°C) temperatures. The results showed that methanol-HCI I% gave highest extract of anthocyanins and polyphenols and antioxidant activity as compared to acetone, acetone-water (7:3), and water. Higher antioxidant activity and anthocyanin content were resulted from extraction in 4°C compared to room temperature; whereas higher polyphenol content were obtained from extraction at room temperature compared to cool room temperature. The length of extraction time. did not give significant differences in antioxidant activity, anthocyanin and polyphenol content. With regard to methanol-HC1 1% extract, there was a sienificant correlation between anthocyanin level and antioxidant activity (Y= 12,20 X + 84,40 ; r=0,900), and nonsignificant correlation between polyphenol content and antioxidant activity (Y= -0,92 X + 144 ; r=-0,805) (r table = 0,811); These facts indicated that the anthocyanin had a high antioxidant activity.Key words: Syzygium cumini, antioxidant activity, anthocyanin, polyphenol.
Perubahan Komposisi Kasein pada Permukaan Globula Minyak sebagai Pengaruh Pengingkatan Konsentrasi Fosfolipida selama Emulsifikasi Teti Estiasih
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 (1501.589 KB) | DOI: 10.22146/agritech.13375

Abstract

Casein and phospholipids are natural compounds usually used concomitantly as emulsifier. This research is conducted to elucidate the adsorbed casein composition that stabilized oil globule interface during fish oil emulsification as affected by phospholipids concentration. Each casein has different behaviour at oil globule interface. The results showed the changes of adsorbed a A and fc casein at oil globule interface because of phospholipids addition. Among caseins, a casein has prefrence to desorb, 8 casein has preference to adsorb, and K casein has no preference to adsorb Cr desorb. Their preferences to adsorb or desorb are influenced by their surface activities and layer properties. Casein compositional changes are caused by caseinsphospholipids complex formation. This complex has less preference to adsorb at oil globule interface.
Asap Cair Sebagai Pengawet Alami pada Bandeng Presto Sih Yuwanti
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 (1500.836 KB) | DOI: 10.22146/agritech.13378

Abstract

"Bandeng presto" is easily spoilage at room temperature. Liquid smoke has properties as antimicrobial and antioxidant, so liquid smoke can act as a natural preservative. The objective of this study was to evaluate the antimicrobial and antioxidant activities of liquid smoke on "bandeng presto". Three concentrations of liquid smoke (2.5%, 5% and 7.5%) together with 25% salt solution was used in immersing bandeng before being cooked under pressure, control was immersed only in salt solution. The result showed that liquid smoke was able to retard the growth of microbial and lipid oxidation on "bandeng presto". The ability of liquid smoke as antimicrobial and antioxidant on "bandeng presto" increased as the increasing of liquid smoke concentration. Liquid smoke of 7.5% prolonged the shelf life of "bandeng presto" from I day to 6 days at room temperature and from 21 days to more than 28 days at cold temperature.

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