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agriTECH

agritech
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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 1,392 Documents

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Cemaran Aflatoksin pada Produksi Jagung di Daerah Jawa Timur Endang Sri Rahayu; Sri Raharjo; Agustina A. Rahmanianna
agriTECH Vol 23, No 4 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Penelitian ini ditujuan untuk mengindentifikasi tingkat cemaran aflatoksin pada produksi jagung di Propinsi Jawa Timur =la, dart lingkat petani, pengecer maupun pedagang sena mendapatkan data tentang praktek pasca-panen melalui kuesioner maul, 1111 peninjauan lapangan. Pemantauan dilakukan di 4 (empat) kabupaten penghasil jagung terbesar di Propinsi Jawa Thrum yaitu Malang, Tuban, Kediri dan Sï€´ï€´enep. Uji infeksi jamur menunjukkan bahwa hampir 100% biji yang diambil balk dart petani. pengumpul maupun pedagang di empat kabupaten terinfeksi oleh jaunt)â€¢ bermiselia putih dan hitam (tidak dilakukan identifikasi lanjut), Aspergillus dan Penicillium. Kadar air jagung yang diuji berkisar antara 12.60% - 20.84%. Hal ini merupakan indikator bahwa proses pasca panen belum berlangsung dengan baik. Data uji infeksi jamur aflatoksigenik menggunakan media AFPA menunjukkan bahwa sampel dengan cemaran aflatoksin tinggi (>100 ppb), rata-rata terinfeksi dengan jamur aflatoksigenik >50 %. Hasil uji aflatoksin menunjukkan bahwa dart 115 sampel yang diambil dart petani, pengumpul dan pedagang. 27 sampel (23%) tidak terdeteksi aflatoksin, sedang 48 sampel (42%) dengan cemaran aflatoksin < 20 ppb, 26 sampel (23%) dengan cemaran 20 - 100 ppb, dan 14 sampel (12%) dengan cemaran > 100 ppb. Dart hash uji diperoleh bahwa 6 sampel memiliki cemaran aflatoksin > 300 ppb, dengan cemaran tertinggi adalah sekitar 350 ppb. Secara urnum dapat disimpulkan bahwa praktek produksi jagung yang kurang balk dapat memberi peluang terhadap tingginya cemaran aflatoksin. Rekomendasi cara bercocok tanam yang tepat, pengeringan hingga kadar air 13% yang tidak boleti ditunda, penyimpanan pada ruang yang. kering dan bersih perlu disampaikan untuk petani, pengecer dan pedagang, maupun penterintah. Demikian pula insentif bagi petani, pengumpul dan pedagang yang mampu mempertahankan kebersihan bpi dart infeksi jamur Aspergillus flavus dan cemaran aflatoksin perlu ditingkatkan.

Evaluasi Karkas dan Rumah Potong Ayam Lokal di Beberapa Kabupaten di Daerah Istimewa Yogyakarta dan Jawa Tengah Wahyu Supartono; Sri Raharjo; Sofyan Iskandar
agriTECH Vol 23, No 4 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Local chickens are one of national assets which need serious consideration, because they have some advantages than imported ones. These local chicken are still used as raw material for some traditional foods or ceremonies. But the quality of their carcasses was still low, so that it was needed to observe them in the practices (at the slaughtering houses and the market). The observations were conducted in some regions; Surakarta and Sukoharjo (Middle Java), Yogyakarta city, Sleman and Bantu! (Yogyakarta Special Province). This research was focussed on chemical, physical and microbiological determination on local chicken carcasses, which were sold in the market and evaluastion on slaughtering houses in the five research locations. The results depicted, the local chicken carcasess had higher protein and calorie content, lower fat content than imported ones. Based on sensory evaluation, these chicken carcasses showed good physical appearance. The results on texture and colour test depicted, there were no significant differences among the. But the microbiological test poniled out, that all samples were containinted by Escherichia coil, Staphylococcus sp and Salmonella sp. The field observation on the slaughtering houses showed, that all houses did not implement the principles of equipment lay-out, processing flow, good sanitation and waste handling and hygienic material handling.

Analisa Kualitas Layanan pada Industri Jasa Boga Rina Inderayani; Wahyu Supartono; Didik Purwadi
agriTECH Vol 23, No 4 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The growth of income, knowledge, jobs, and work places supported the existence of the food service industry to fulfill the society's need To increase the consumer's satisfaction, it was needed to measure the service quality. The service quality was measured based on several variables: tangibles, responsiveness, reliability, assurance, and empathy, which ordered by SERVQUAL instruments. The research was conducted by using questionnaire which was spread out to the consumers. The research methodology was purposive random sampling. The data were analyzed by product moment correlation test and Alpha technique for reliability test. The assumption for the double regression model had to fulfill following criteria's: no multicolinearity no autocorrelation, and heteroscedasticity which could be ignored. The results showed, that consumer's acceptance level for service quality was high, which could be ranked as follow: reliability (highest), assurance, tangibles, responsiveness, and empathy (lowest). Double regression model for the quality service was : Y = 1.377 + 3.99x10-2X17.278x104X2â€“ 4.673x10-2X3 + 0.118X, + 2.381x10'2X3, which meant variable assurance (X4) gave the highest contribution to the consumer's satisfaction

Model Matematics Salinitas Air di Muara Sungai untuk Pengairan Tambak Udang Windu Andri Sewoko; Saiful Rochdyanto; Putu Sudira
agriTECH Vol 23, No 4 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The salacca (Salacca zalacca cv. Pondoh) fruits were stored in various modified atmosphere conditions in the impermeable cuverles with the variation of oxygen concentration of 2, 4, 6 and 8%. carbon dioxide concentration of 1, 2. 3 and 4% and nitrogen concentration as the rest. The variation of temperature was 12, 20 and 24 C. Gases within each cuvette were replaced daily. The respiration rate of the fruit was mudded based on the enzyme kinetic theory. The result showed that the respiration model Mows the Michaelis-Menten enzyme kinetic, with CO2 as the uncompetitive inhibitor. The model was fit to predict the respiration rate of the fruit.

Potensi DNA Sebagai Penguat Flavor Nuri Arum Anugrahati; C. Hanny Wijaya; Safir Abadi
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The application of DNA in food product is still limited. Meanwhile, nucleotides such as IMP and GMP have been widely used as flavour enhancer. The objectives of this research was to study the potency of DNA as a flavour enhancer. Firstly, the phsyco-chemical properties of single-stranded DNA were determined. The next step was the determination of treshold value using trained panels. Formulation of flavour enhancer premix and seasoning were also conducted in this research based on previous result. DNA was soluble in water and base solution. The viscosity of DNA solution was stable to oxygen exposure, but unstable to heat and light exposure. The water, ash, protein, fat, and carbohydrate content of single stranded DNA were 6.37%, 25.20%. 48.58%, 0.1%, and 19.75%, respectively as wet basis. DNA and MSG have shown synergistic effect. The ratio of MSG and DNA premix, which had the best organoleptic properties was 95:5, according to hedonic test result, the optimum formula for seasoning was 1 g of salt, 1 g of flavour enhancer premix, 1 g sugar, 0.8 g of garlic powder, and 0.4 g of pepper

Pengaruh Penambahan Sari Ubi Kayu terhadap Mutu Saos Tomat Krishna Purnawan Candra; Neni Suswatini; Asih Ika Suryandari
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Starch is the main composition of cassava-extract; therefore it can be used in food product as thickening agent. The purpose of this research was to know the effects of cassava-extract addition in tomato ketchup to its physical properties and consumer's acceptance. Randomized Complete Design was used in this experiment with cassava-extract volume as single factor and arranged in five treatment levels of 0, 20, 40, 60, 80 mL, each with three replications. Tomato paste of 400 mL (300 g) was added by cassava-extract according to the treatment level. The mixture was cooked for 10 minutes following addition of suitable spices. The results of the experiment showed that moisture content of tomato ketchup is around 70-80%, and its volume increase according to the increasing of cassava-extract added. Cassava-extract of 80 mL gave a tomato ketchup yield of 64%. The addition of cassava-extract in tomato ketchup processing gave influence in colour, viscosity, and sweetness of tomato ketchup. and they increased by increasing of cassava-extract addition. According to hedonic quality test, the addition of cassava extract of 60 mL and 80 mL gave a sweet, dark orange, and viscous tomato ketchup. This tomato ketchup was preferred by consumer

Optimasi Usahatani Lahan Kering dengann Evaluasi Lahan di Kecamatan Playen Kabupaten Gunung Kidul Umi Hidayati; Harsono Harsono; Tri Purwadi
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The objectives of this research were to evaluate land suitability for farming of corn, soybean, and groundnut in Playen District, Gunung Kidul Regency and to know the optimum suitable farming for corn, soybean, and groundnut in that area. This research was carried out during the planting season of 1999/2000. Land unit map was made by overlapping the maps of soil classification, climate, slope, land use, and administration. Matching was done between land qualities and land characteristics with land requirements for planting corn, soybean, and groundnut. After getting land suitability map, the further step was optimation by using linier program to get the optimum land suitability map for research area. The result of the research was 21 land units from 34 land units that can be calculated, while 13 other land units cannot be calculated because they had no agricultural land or land suitability class N2. Land suitability class for corn, soybean, and groundnut were S2, S3, and N2 for each commodity. The result of oprimation by using linier program made profit of Rp 6.196.992.577 in one year with three planting seasons and with planted area for the first planting season was 2.733,041 ha, and the third planting season was 2.843,841 ha. The suitable crop for the research area were 3 land units suitable for corn, 12 land units for soybean, and 6 land units for groundnut

Pengaruh Blanching terhadap Sifat Antioksidasi Sirup Kunir Putih (Curcuma mangga Val.) Dwiyati Pujimulyani
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The research on the effect of blancing on antioxidant properties of white saffron syrup (Curcuma mangga Val) was conducted. The general purpose of this research is to have a white saffron syrup with a high antioxidant activity. The specific objectives were to know the effect of temperature and blanching time on the linoleic acid oxidation. White saffron tubers of mangga sp. were washed, peeled, and blanched at (i) 80oC, (ii) 100oC for (i) 5 and (ii) 10 minutes in the media of (i) 0.05% citric acid solution (ii) 0.8% ascorbic acid solution and (iii) distilled water. Blanched white saffron then was grated, manually pressed with filter cloth to get white saffron juice. The juice was added with sugar (ratio 100:130) and other ingredients i.e: 0.1% CMC, 0.128% citric acid, 0.031% benzoic acid, then boiled for 20 minutes to get the syrup. The antioxidant activity of the syrup was tested according to FTC and TBA methods. The results showed that the antioxidant activity of white saffron syrup blanched at 80oC for 5 minutes was higher than its activity at 100oC and for 10 minutes, respectively. Blanching in citric acid medium at 80oC for 5 minutes resulted a highest antioxidant activity of the white saffron syrup

Perubahan Suhu, Ph Pulp dan Ph Keping Biji serta Aktivitas Polifenol Oksidase (PPO) pada Fermentasi Biji Kakao Mulia (theobroma Cocoa L.) Sri Hartanti; Novi Sulistyani
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Studies were carried out on Kedaton Estate PTPN XII at Jember-East Java to indicate the changes of temperature of cocoa beans, pH of pulp, pH of cotyledon and polyphenol oxydase activity during fermentation process. The results showed that the temperature of heap beans rose from 25oC up to 40oC for 40 hours and reached 50oC after 60 hours of fermentation. The pH of pulp increased gradually from 4.07 to 5.07, but in contrast with the pH of cotyledon decreased from 6.69 to 4.55. While polyphenol oxydase decreased from 61.968 unit/mg protein to 4.220 unit/mg protein during 60 hours fermentation

Analisis Ketersediaan Air sebuah Das Menggunakan Model NAM (Nedbor Afstromnings Model) Sumiyati Sumiyati; Sahid Santoso
agriTECH Vol 23, No 3 (2003)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

This study was conducted at Loning Watershed which is located in Magelang, Central Java and completed with Loning dam. Water yield from watershed is mainly used for water supply of the Loning irrigation area. The optimal parameter of the NAM model were CQOF = 0.001, CLOF = 0.03, CQIF = 0.01, CLIF = 0.999, Umax = 70, Lmax = 500, CBFL = 0.99, CLG = 0.675, CKBFU = 0.35, CKBFL = 59, CKI = 0.1, and CK2 = 0.1. The optimal initial value for some variables were Qif1+Qof1 = 0.5, Qif2+Qof2 = 0.01, U = 45, L = 480, BFU1 =5.55, and BFL1 = 0.45. Verification of the model indicated that statistically and graphically the NAM model is suitable to be applied for small watersheds for prediction of available water for irrigation as well. The prediction of available water for irrigatin of Loning irrigation area during the planting period of 1999/2000 indicated that there was excess of water during the period of October 1 to July 1. In contrary, lack of water was occurred during the period of July II to September II

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Contact Name
Fiametta Ayu Purwandari

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fiametta@ugm.ac.id

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+6285712601130

Journal Mail Official
agritech@ugm.ac.id

Editorial Address
Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA

Abstract

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Abstract

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Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Fiametta Ayu Purwandari

Contact Email fiametta@ugm.ac.id

Phone +6285712601130

Journal Mail Official agritech@ugm.ac.id

Editorial Address Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location Kab. sleman, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Fiametta Ayu Purwandari

Contact Email
fiametta@ugm.ac.id

Phone
+6285712601130

Journal Mail Official
agritech@ugm.ac.id

Editorial Address
Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Yogyakarta 55281, Indonesia

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA