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Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology)
Published by Universitas Udayana
ISSN : 24772739     EISSN : 24772739     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) adalah jurnal ilmiah yang dikelola oleh Program Magister Ilmu dan Teknologi Pangan, Progam Pascasarjana, Universitas Udayana, Denpasar-Bali. Jurnal ilmiah ini diterbitkan dua kali setahun, mempublikasikan hasil-hasil penelitian dan ulasan ilmiah dalam bidang ilmu dan teknologi pangan.
Arjuna Subject : -
Articles 150 Documents
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Effect of Temperature and Storage Time on 2-Acetyl-1-Pyroline and Hexanal Content of Aromatic Rice bram kusbiantoro; Suhartini Suhartini
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 2 (2020): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i02.p04

Abstract

2-asetil-1-pirolina (2AP) dan heksanal adalah senyawa volatil penting dalam menentukan kualitas aroma pada beras aromatik. Kedua senyawa tersebut sangat mudah mengalami perubahan selama proses pasca panen dan mempengaruhi kualitas aroma beras. Oleh karena itu tujuan penelitian ini adalah untuk mengetahui pengaruh suhu dan lama penyimpanan terhadap senyawa 2AP dan heksanal pada beras. Penelitian dilakukan di Laboratorium Analisis Flavor Balai Besar Penelitian Tanaman Padi (BB Padi) menggunakan Gas Chromatography Mass Spectrometry (GCMS) dengan ekstraksi metode Likens-Nickerson. Sebanyak 3 varietas aromatik dengan 3 ulangan disimpan selama 9 minggu dengan dua suhu penyimpanan yang berbeda, yaitu 11 oC dan 25 oC. Seiring dengan bertambahnya waktu penyimpanan hingga 9 minggu, konsentrasi 2AP mengalami penurunan sedangkan konsentrasi heksanal mengalami peningkatan. Suhu penyimpanan 11 oC lebih baik dibandingkan dengan suhu 25 oC karena dapat mempertahankan 2AP hingga 14% dan menghambat laju peningkatan heksanal hingga 122%.
PENGARUH SUHU DAN WAKTU MASERASI TERHADAP KARAKTERISTIK EKSTRAK SABUT KELAPA GADING (Cocos nucifera var. Eburnea) SEBAGAI SUMBER SENYAWA TANIN Ni Nyoman Desi Trisnadewi; Luh Putu Wrasiati; IDG Mayun Permana
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 2 (2020): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i02.p06

Abstract

Coconut husk from ivory coconut can be utilized by taking the existing potential compounds. Tannin compounds in ivory coconut husk are obtained by extraction using maceration methods. The purpose of this study was to determine the effect of temperature and time of maceration and determine the treatment that produced the best ivory coconut husk extract. Extraction of ivory coconut husk using ethanol with temperature and maceration time which consists of 70 ± 2 °C, 80 ± 2 °C, 90 ± 2 °C and maceration time 1 hour, 2 hours, 3 hours. Based on the results of the analysis of temperature variations and maceration time yield, tannin content, solubility, pH, and color intensity of ivory coconut husk extract. The results of the effectiveness index test showed that the temperature of 80 ± 2 °C and within 2 hours was able to produce the best ivory coconut husk extract characteristics with yield characteristics of 18.371 ± 0.155%, tannin levels 13.89 ± 1.09 g TAE/100g, pH 3.15, solubility 99.46 ± 0.24 %, brightness (L *) 19.488 ± 3.190, redness (a *) 10.523 ± 0.417, yellowish (b*) 18.39, Rf value of 0.62 which is the Rf of catechin compounds. The results of the study concluded that the temperature and maceration time treatment affected the characteristics of ivory coconut husk extract. Increasing the temperature and maceration time to its optimum conditions can increase yield, tannin content, pH, solubility, redness (a *), and yellowish (b *) and decrease brightness (L *).
Optimization of Temperature and pH of Microbial Lipase in Coconut Pulp Media using Response Surface Methodology I Dewa Gde Mayun Permana; Lutfi Suhendra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 2 (2020): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i02.p03

Abstract

The aim of this study is to determine the optimum temperature and pH of microbial lipases grown on coconut pulp media. The method used to obtain the optimum temperature and pH of lipase is Response Surface Methodology (RSM) with a central composite design (CCD). The result from the D-optimally analysis of RSM shows that the lipase temperature was 39.79oC and pH 5.13 with a theoretical maximum activity of 3.47 U/ml. The lipase activity of the validation results at temperature of 39.79oC and pH 5.13 was obtained as large as 3.41 U/ml or equal to 98.27% from the D-optimaly activity. Specific activity was obtained at 1,459 U/mg protein.
Pengaruh Penggunaan Getah Pepaya (Carica Papaya L.) Pada Proses Dekafeinasi Terhadap Penurunan Kadar Kafein Kopi Robusta Media Pangan
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 4 No 2 (2017): Scientific Journal of Food Technology
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Decafeination is a process for reduction of caffeine content in coffee beans. This study is aimed to find the effects of use of papaya’s sap (Carica papaya L) to the reduction of caffeine content of robusta coffee and find the concentration of papaya’s sap (Carica papaya L.) that should be used to produce decaffeinated coffee according to the requirements. This study uses a Completely Randomized Design (CRD); by using five levels of papaya’s sap concentration; at 0%, 1.5%, 3%, 4.5% and 6%, with 3 repetition so obtained 15 experimental units. The results of the study showed that the use of papaya’s sap affects the reduction of caffeine content in robusta coffee. At a concentration of 6% addition of papaya’s sap decaffeinated coffee produce according to the requirements that the caffeine content of 0.24% by 11.34% moisture content, 0.07% ash content, and 9.72% protein content.
The PENGARUH KONSENTRASI KARAGENAN DAN SUHU PEMANASAN TERHADAP KARAKTERISTIK DAN ANTIOKSIDAN JELLY DRINK DAUN PEPAYA Ni Made Ria Oka; Gusti Putu Ganda Putra; Nengah Kencana Putra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 2 (2020): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i02.p02

Abstract

Papaya leaf is one part of the papaya plant, which has benefits as an antioxidant. Development of papaya leaves into jelly drink products is expected to make it easier for people to enjoy drinks from papaya leaves and get health benefits. This study aims to determine the effect of carrageenan concentration and heating temperature on the characteristics and antioxidant activity of papaya leaf jelly drink, obtain the best carrageenan concentration and heating temperature to produce papaya leaf jelly drink, and obtain the stability of papaya leaf jelly drink to temperature during storage. This research used a factorial randomized block design. The first factor was carrageenan concentration consisting of three levels: 0.2; 0,4 and 0.6%. The second factor was the heating temperature, which consisted of three levels: 75 ± 2oC, 85 ± 2oC, and 95 ± 2oC. The results showed that the concentration of carrageenan affected viscosity, brightness (L*), redness (a*), and yellowish level (b*) of papaya leaf jelly drink. The heating temperature affected the total phenol and antioxidant capacity of papaya leaf jelly drinks. The interaction of carrageenan concentration and heating temperature affected the color, texture, and overall acceptance of papaya leaf jelly drinks. The treatment did not affect the taste of the papaya leaf jelly drink. Carrageenan concentration of 0.2% and temperature of 75 ± 2oC produced the best papaya leaf jelly drink with the following characteristics: 9000 cps viscosity, brightness level (L*) 20.30, redness level (a*) 9.73, levels yellowish (b*) 8.48, total phenol 7.12 mg/100g, antioxidant capacity 401.24 mg GAEAC/L, taste 2.4 (rather dislike), color 3.2 (normal), texture 3.2 (ordinary), and overall acceptance 2.9 (ordinary). The best storage temperature to maintain the stability of syneresis, total phenol, and antioxidant capacity of papaya leaf jelly drink was 10oC.
Pengaruh Jenis Pelarut Dan Waktu Ekstraksi Dengan Metode Soxhletasi Terhadap Aktivitas Antioksidan Minyak Biji Alpukat (Persea Americana Mill.) Media Pangan
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 4 No 2 (2017): Scientific Journal of Food Technology
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

This research was conducted in order to determine observe and obtain the type of this solvent and extraction time to produce oil avocado seed with the highest antioxidant activity. The experimental design used in research was a factorial completely randomized design which consisted of two factors. The first factor was the type of solvent consisting of n-hexan, isopropyl alcohol, and petroleum ether. The second factor was the extraction time consisting of 1, 2, and 3 hours. The treatment was repeated twice to obtain 18 units of the experiment. Data were analyzed with analysis of variance, followed by Duncan test. The results show that the solvent of isopropyl alcohol and extraction time 2 hours resulted highest antioxidant activity with total carotenoids 140.27 ppm, total tocopherol 218.75 ppm, the antioxidant activity (carotene bleaching) 83.33%, the antioxidant activity (DPPH) 54.52% and yield 16.39%.
Characteristics of Extract Tamarillo Seeds (Cyphomandra betacea Sendtn) on the treatment of Type of Solvent and Temperature Ni Nyoman Budiasih; Ni Made Wartini; I Putu Suparthana
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 2 (2020): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i02.p01

Abstract

Tamarillo seeds have potential as a source of antioxidants. This study aims to determine the effect of the type of solvent and extraction temperature on the characteristics of the tamarillo seed extract, determine the type of solvent and extraction temperature that can produce tamarillo seed extract with the best characteristics. And 3) determine the specific temperature and pH that produces the extract Tamarillo seeds with the highest stability. This study used a randomized block design (RBD) 2 factors with 3 group. The sample extraction process used maceration method. The results showed that the treatment of solvent type and extraction temperature and their interactions affected the yield parameters, pH, total anthocyanin antioxidant capacity. The treatment of ethanol solvent and extraction temperature of 50°C was the best treatment to obtain the extract of Tamarillo seeds with the characteristics of yield, 9.98% yield, pH 3.33, total anthocyanin 27.71 mg/L, antioxidant capacity 1,956.70 mg GAE/100 g.
Studi Potensi Lactobacillus Rhamnosus A6 Hasil Isolasi Dari Air Susu Ibu Sebagai Starter Dalam Pembuatan Yoghurt Media Pangan
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 4 No 2 (2017): Scientific Journal of Food Technology
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

The aim of this research was to determine the potential of Lactobacillus rhamnosus A6 isolated from breast milk as a starter in the manufacture of yoghurt. The random design uses for the research with one factor treatment using different types of starter such as Lactobacillus rhamnosus A6 as single starter, Streptococcus thermophilus and Lactobacillus bulgaricus, Lactobacillus rhamnosus A6 and Lactobacillus bulgaricus, Lactobacillus rhamnosus A6 and Streptococcus thermophilus, and Lactobacillus rhamnosus A6 with Streptococcus thermophilus and Lactobacillus bulgaricus. Milk was pasteurized at 80°C for 15 minutes and then added 6% starter culture according to the treatment. Each treatment was repeated 3 times to obtain 15 experimental units. The data obtained were analyzed by ANOVA and if there was any difference followed by Duncan test (DMRT). The best treatment was Lactobacillus rhamnosus A6 with Streptococcus thermophilus and Lactobacillus bulgaricus with good characteristic 3,16% protein content; 3,74 x 106 CFU/ml total LAB; pH of 4,64; 0,53% total lactic acid; 408,3 mPas viscosity; color (white and like), aroma (acid and like), flavor (acid and like), texture (thick and like), and overall acceptance (like).
Characteristics of “Base Genep” Extracts on Treatment Temperature and Extraction Time Ni Luh Putu Ravi Cakswindryandani; Luh Putu Wrasiati; Lutfi Suhendra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 7 No 1 (2020): Scientific Journal of Food Technology (March)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2020.v07.i01.p02

Abstract

“Base Genep” is a Balinese spice that is usually served for all Balinese dishes and is usually served in a wet form. “Base Genep” or “Genep” seasoning must be used until finished because it is made from fresh ingredients that has a short shelf life. “Base Genep” is composed of turmeric, ginger, kencur, galangal, onion, garlic, pepper, coriander, candlenut, nutmeg, chili, shrimp paste, and salt. The content of bioactive compounds derived from the ingredients used makes “base genep” susceptible to oxidation processes that result in decreased quality and shelf life of base genep. This must be prevented by applying technologies such as extraction to increase the weakness of seasonings in the wet form. This study aims to know the effect of temperature and extraction time and determine the best treatment produce “base genep” extract. Extraction process using maceration method with ethanol solvent with temperature treatment and extraction time consisting of a temperature of 30ºC, 40ºC, 50ºC, 60ºC and time for 2, 3, and 4 hours. The results showed that the temperature and extraction time affected the characteristics of “base genep”. The higher the temperature and extraction time until the optimal conditions can increase yield, antioxidant activity, and total phenol extract “genep” seasoning. The results of the research showed a temperature of 50ºC for 4 hours was able to produce the characteristics of the best “genep” seasoning extract with a yield value of 25.392%, IC50 of 280.675 ppm, and a total phenol of 1177.97 mg/100 g.
Effect of Drying towards the Total Phenol and Antioxidant Capacity of Arabica Coffee Rind (Coffea arabica L.) Dylla Hanggaeni Dyah Puspaningrum; Ni Luh Utari Sumadewi
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 6 No 2 (2019): Scientific Journal of Food Technology (September)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITP.2019.v06.i02.p01

Abstract

The utilization of coffee processing waste in the form of rind and fruit flesh has the potential as a natural antioxidant. Coffee rind contains several secondary metabolite compounds, one of it was the polyphenol. Phenol compounds contains antioxidant, antitumor, antiviral, and antibiotic activities. Phenol compounds are known has a role in antioxidant activity. The greater the phenolic compounds so were the antioxidant activity. The drying process in the making of coffee rind have an impact on the phenol and the antioxidant capacity. The aim of the study was to determine the effect of the drying method (oven and sunlight) towards the total phenol and antioxidant capacity of Arabica coffee rind (Coffea arabica L.). Total phenol was determined by the Follin Chiocalteau Phenol method and antioxidant capacity by the DPPH method. The results of the analysis found that the highest total phenol in the green coffee rind dried by sunlight for 20 hours is equal to 1400,652 mg GAE/100g. Drying process by sunlight was able to maintain and produce high total phenols. The antioxidant capacity of green coffee rind (by sunlight) has the highest antioxidant capacity of 6,638.61 mg GAEAC/L.

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