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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 19, No 1 (1999)" : 6 Documents clear
Profil Gliserida, dan Kandungan EPA (Eicosapentaenoat) dan DHA (Docosaheksaenoat) Hasil Hidrolisis Minyak Hati Ikan Cod oleh Lipase Teramobil dari Mucor Miehei Erryana Martati; Tyas Utami; Pudji Hastuti
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.77 KB) | DOI: 10.22146/agritech.22383

Abstract

Hydrolysis of cod liver oil by immobilized lipase from Mucor miehei was studied to observe the hydrolysis level, glycerides profile and EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) contents in the form of glycerides and free fatty acid on various hydrolysis temperatures. Enzymatic hydrolysis of cod liver oil was carried out in a waterbath shaker at temperatures ranging from 30-60°C for 48 hours. Up to 12 hours reaction time, higher temperature gave higher hydrolysis level. Reaction time longer than 12 hours did not improve level of hydrolysis and all of them beyond 67%. This result indicated that there was possibility of acyl migration during hydrolysis. Though the hydrolysis level was high, after 48 hours reaction, EPA and DHA contents in the form of free fatty acid were low.
Penilaian Tekstur Tulang Bandeng Presto dengan Instrumen Instron dan Secara Organoleptik Jamaluddin Jamaluddin; Budi Rahardjo; Suwedo Hadiwiyoto
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.418 KB) | DOI: 10.22146/agritech.22387

Abstract

The use of Instron instrument to predict bone texture of fish have been conducted by studying the relationship of data from Instron with organoleptic scoring by the panelists. Samples were fishbone and bone from pressure cooked fish respectively. Temperature distribution during cooking was measured using Data Logger, the results showed that the time for heating up to cooking temperature were generally very short, 10-15 minutes, for any temperature range of cooking, while time for cooling down to room temperature were long, 40-60 minutes. There were significant relationship between data obtained from measurement of the bone fragility expressed in force using Instron instrument and organoleptic scoring given by panelists. Nonlinear relationships were found for all samples between organoleptic scores and objective analysis using Instron except for the range temperature of cooking between 110°C and 125°C below the force of 100 N for the sample of bone, showed by the regression of Y -20,29X + 136,90 with Y is forces and X is organoleptic scores.
Produksi Asap Rempah Cair dari Limbah Padat Rempah dengan Cara Pirolisa Purnama Darmadji; Supriyadi Supriyadi; Chusnul Hidayat
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.863 KB) | DOI: 10.22146/agritech.22388

Abstract

The new product liquid of moke from solid wastes of spices were produced by pyro 'zation for development the extraction process. The research materials were solid wastes from distillation of spices. Pyrolization process was carried at 150, 200, 250 and 300°C for 30 minutes each process. The products were evaluated for antimycrobial and antioxidation activities as well as sensory qualities. The results indicated that antimycrobial activities of the spices liquid smokes from "Eugeria" leaf and "Zingiber" increased with an increasing of pyrolization temperature while spices liquid smoke from "Citronella" leaf was higher at 150°C and decreased with increasing temperature. The antioxidation activities of spices liquid smokes were varied depended on pyrolization temperatures. The flavor of spices were dominant at 150°C pyrolization, and have a moderate mixed flavor of spices and smoke at 200°C pyrolization
Pengolahan Bahan Makanan Campuran (BMC) Sebagai Pengisi Makanan Jajanan untuk Anak Sekolah Dasar S. Widowati; A.F. Rochmadi; L. Kustiyah; D.S. Slamet; D.S. Darmadjati
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.344 KB) | DOI: 10.22146/agritech.22389

Abstract

Three formules of composite flour were prepared in this research, comprising : 1 fermented taro-corn-soybean, II. fermented taro-corn-germinated soybean, and III. fermented taro-corn-soybean cake. The formules were used as titter for traditional snack food processing. The products were evaluated for their chemical and sensory properties. Result showed that formula I, II, HI contained 26.8, 16.2, 19.8% of protein, 442, 403, 377 ca1/100 g of energy and 17.4, 8.4, 10.9 of NDpE%, respectiveley. Organoleptik test showed that all traditional snack food were acceptable. Consumption of 100 g of snack food contribuded 22.9-41.8% of protein and 19.3 - 22.3% of energy needed by children of 6 - 12 years old, respectively
Optimasi Waktu Pemasakan Bandeng Presto Suwedo Hadiwiyoto; Sri Naruki
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.394 KB) | DOI: 10.22146/agritech.22390

Abstract

A study of the optimation of processing time to produce highly acceptable "bandeng presto" was conducted by cooking '5. 1 of milidish (Chanos chanos) at 121°C and charatecterization of H. I the physical and chemical properties 15psi. Increasing cooking time gave softer fishbone and meat as shown by increasing water holding capacity (WHC) and score given by panelists. Cooking at high temperature decreased protein solubility, however by increasing time of cooking result in increasing in protein solubility The preferences of panelists were affected by appearance and flavour "bandeng presto" products. Cooking of milkfish aT121°C and 15psi for 60 minutes produced highly acceptable "bandeng presto" containing about 3% salt base on appearance, bone and meat softness, and flavour
Karl Fischer Titration as An Alternative Method for Determing The Water Content of Indonesian Spices Wahyu Supartono
agriTECH Vol 19, No 1 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (192.104 KB) | DOI: 10.22146/agritech.22391

Abstract

Karl Fischer Titration (KFT) is a well established and effective direct primary method to determine water content in various materials. It is based on a specific chemical reaction and it differs principally from the drying and distillation methods. The KFT was introduced as an alternative method to determine the water content in some Indonesian spices (clove, coriander, ginger and white pepper), which generally contain appreciable amount of volatile compounds to distract accurate moisture. The samples used were prepared by cutting and grinding with a morser. The KFT system used was one-component reagent with methanol as working medium. The samples were introduced into a KFT titration cell and titrated directly with the KFT reagent. The extraction time of determination was 60 seconds. The determination of the water content took approximately 10-20 minutes. The distillation and drying method served as control or reference method. The distillation methods which used was a mixture of toluene and xylene 95:5 (vlv) took 2 hours. The drying method was conducted at temperature of 105°C for 3-4 hours.

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