Article Per Year (5 Year)
p-Index From 2021 - 2026
2.307
P-Index
This Author published in this journals
All Journal Agrotekno Buletin Udayana Mengabdi Itepa : Jurnal Ilmu dan Teknologi Pangan Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Journal of Electrical, Electronics and Informatics Jurnal Ilmiah Teknologi Pertanian Agrotechno
Agus Selamet Duniaji
Program Studi Ilmu Dan Teknologi Pangan, Fakultas Teknologi Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

Published : 51 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 51 Documents
Search

 2   3   4   5   6 
Natural Deys from Fruit Waste as a Sensitizer for Dye Sensitized Solar Cell (DSSC) I Nyoman Setiawan; Ida Ayu Dwi Giriantari; Wayan Gede Ariastina; Ida Bagus Alit Swamardika; Agus Selamet Duniaji; Nyoman Satya Kumara
Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017)
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEEI.2017.v01.i01.p06

Abstract

Dye-sensitized solar cell (DSSC) is one of the potential candidates for the next generation solar cells. One of the most attractive features of the DSSC is the low production costs. The utilization of natural dyes is a new area for investigation due to their unique capability to absorb photons from natural sunlight or artificial light and convert it into electric current. The purpose of this study is to determine the potential of natural dye from red dragon fruit waste as a dye sensitizer. Red dragon fruit peel is initially extracted using methanol and the solution absorption spectra then is characterized using UV-Vis spectrophotometer. The absorption spectra is measured within a wavelength range of 400-800 nm. The characterization results show that the maximum absorption spectrum is at a wavelength of 446 nm. The natural dye solution then is used to immerse Fluorine Tin Oxide (FTO) coated with titanium dioxide (TiO2). The glass FTO is immersed in the dye solution for 24 hours. DSSC then is prepared by sandwiching the working electrode and counter electrode. An electrolyte solution is used to fill the interface between the two electrodes. The current and voltage (I-V) characteristics of DSSC is finally measured using amperemeter and voltmeter. The results indicated that the natural dye from the peel of red dragon fruit has potential as a dye sensitizer. Further research is still required to improve the performance of the DSSC.
Pengaruh Jenis Substrat Terhadap Pertumbuhan Rhizopus oligosporus DP02 Bali dalam Pembuatan Ragi Tempe Edwin Sam Putra Surbakti; Agus Selamet Duniaji; Komang Ayu Nocianitri
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 11 No 1 (2022): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2022.v11.i01.p10

Abstract

This research aims to find out the effect of different types of substrates on the growth of Balinese local isolate Rhizopus oligosporus DPO2 in the making of tempeh yeast and to identify the right type of substrate for the growth of R. oligosporus DP02 in making tempeh yeast. This was an experimental research that was analyzed descriptively with type of substrates as the main factor that consists of 5 different flours including: rice, tapioca, corn, wheat and soybeans. Each treatment was repeated 3 times resulting 15 experimental units. The results showed that different types of substrate produced tempe yeast which has R. oligosporus DP02 Bali with dense to very dense mycelium, dry weight of mycelium 0.49 - 0.58 g, total mold 6.97 - 7.77 log CFU / g and water content. 4.47 - 6.01%. Corn flour produces tempeh yeast with the highest growth of R. oligosporus DP02 Bali, with the following characteristics: very dense mycelium, mycelium dry weight 0.58 g, total mold 7.77 log CFU / g and water content 4.55%.
Identifikasi Sifat Fisik dan Biokimia Isolat Bakteri Asam Laktat dari Minuman Kesehatan Teratai Salju (Saussuera involucrate) N.M.I.H. Arihantana; A.S. Duniaji; N.N. Puspawati; M.S.P. Mahardika
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 8 No 1 (2021): 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

Abstract

Snow lotus is a 72-hour fermented health drink from a palm sugar solution with snow lotus (Saussuera involucrate) without using other additives. Fermentation of snow lotus into lactic enzymes and active lactic acid bacteria is to help maintain the body in prime condition, establish and strengthen the immune system and is beneficial for overall health. Based on previous research, 33 isolates of lactic acid bacteria had been isolated from snow lotus health drink. From the isolates that had been successfully isolated, potential for lactic acid bacteria has no known properties as a probiotic candidate. Therefore research is necessary to obtain lactic acid bacteria isolates from snow lotus health drinks which are potential as probiotic isolates. The purpose of this study was to identify the physiological properties of the snow lotus health drink which included gram staining, observation of the shape of the colonies and cell shapes, and catalase testing and also to identify the biochemical properties which included growth at a variety of different temperatures, growth ability at low pH, growth on media containing salt or NaCl, production of CO2 from glucose, and production of dextran from sucrose. Based on the physiological properties, results showed that all 33 LAB isolates from the snow lotus health drink had negative catalase properties, positive gram staining in the form of single and chain rods, and also in the form of coccus, where 13 isolates were coccus and 20 were rod-shaped isolates. Based on the biochemical properties, from the 33 isolates, almost all LAB isolates were able to grow at temperatures of 10°C, 25°C, 37°C, 45°C, pH 2, 4, 6, and media containing salt concentrations of 4% and 6.5 %, 19 isolates were able to produce CO2 from glucose, and 15 isolates were able to produce dextran from sucrose.
Pengaruh Konsentrasi Sukrosa Terhadap Karakteristik Wine Kopi Arabika Kintamani I Putu Andriana Sastrawan; Agus Selamet Duniaji; Ni Wayan Wisaniyasa
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 11 No 3 (2022): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2022.v11.i03.p07

Abstract

This research was conducted to determine the effect of sucrose concentration on characteristic of kintamani arabica coffee wine and to determine concentration of sucrose that produced the best characteristic. The research used a Randomized Block Design with faktor of sucrose concentration that concists of 5 levels (10% ,15%, 20%, 25%, 30% ) Each treatment was repeated 3 times resulting 15 experimental units. The data were analyzed by Analysis Of Variance and the treatment show effect is observed by Duncan Multiple Range Test (DMRT). The results showed that sucrose concentration had significant effect to total Soluble solids (TSS), pH, total acid, etanol content, hedonik of taste, score of taste and overall acceptance. The concentration of 25% sucrose produced the best characteristic of Kintamani arabica coffe wine with total disollved solids 17,20 0Brix, pH 3.95, total acid 0.15%, etanol content 9,58 %, was liked color (5.53), slightly liked aroma (5.27), slightly liked flavor (5.40), sweet flavor (3.13), slightly sour flavor (2.00), slightly bitter flavor (1.73 ) and the overall acceptance is rather liked (5,20).
Pengaruh Konsentrasi Susu Skim terhadap Karakteristik Minuman Probiotik Sari Tomat Terfermentasi dengan Isolat Lactobacillus rhamnosus SKG34 Ni Luh Putu Gita Darmasari; Komang Ayu Nocianitri; Agus Selamet Duniaji
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 12 No 1 (2023): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2023.v12.i01.p13

Abstract

Tomato is one of the food commodities that have the potential to be developed as probiotic drinks. This research aims to identify the effect of skimmed milk concentration on the characteristics of fermented tomato juice and to identify the proper concentration of skimmed milk in producing fermented tomato juice with the best characteristics. Fermentation of tomato juice used Lactobacillus rhamnosus SKG34 as isolates. The research was designed using Completely Randomized Design (CRD) with concentration of skimmed milk as treatment (0%, 2%, 4%, 6%, 8%, 10%). The data were analyzed by ANOVA and if the treatment affected the variable, then proceed with the Duncan test. The results showed that skimmed milk concentration had a significant effect on total LAB, total acid, pH, hedonic of color and skoring test (color, sour taste and sweet taste). The concentration of 4% skimmed milk produceded the best characteristic of fermented tomato juice with total LAB 1.04 x 1012 CFU/ml, total sugar 6.02%, total acid 1.49%, pH 4.01, preferred orange color, preferred aroma, preferred sour and slightly sweet taste, and preferred overall acceptance.
Pengaruh Konsentrasi Ragi Terhadap Karakteristik Tempe Jagung (Zea Mays L.) I Ketut Peri Andika; Agus Selamet Duniaji; Komang Ayu Nocianitri
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 12 No 2 (2023): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2023.v12.i02.p12

Abstract

This study aims to determine the effect of yeast concentration on the characteristics of corn tempeh and to determine the concentration of yeast to produce corn tempeh with the best characteristics. This study used a completely randomized design (CRD) with yeast concentration treatment consisting of 5 levels: 0.2%, 0.4%, 0.6%, 0.8%, 1%. The treatment was repeated 3 times to obtain 15 units of experiment. The data obtained were analyzed by analysed by variance and if the treatment had an effect on the observed variables, it was continued with Duncan's Multiple Range Test (DMRT). The concentration of yeast in the making of corn tempeh has a very significant effect on water content, ash content, protein content, fat content, carbohydrate content, aroma, color, taste, texture, and overall acceptance. The yeast concentration of 0.8% produced corn tempeh with the best characteristics, namely: water content 65.6%, ash content 0.05%, fat content 6.91%, protein content 9.57%, carbohydrate content 17.9%, color , taste, aroma, texture, overall acceptance was very like, the color is white, the texture is compact and the aroma and taste are typical of tempeh.
Pengaruh Lama Fermentasi menggunakan Isolat Lactobacillus rhamnosus MY2 terhadap Karakteristik Susu Kacang Tanah (Arachis hypogaea L.) Erza Aulia; I Made Sugitha; Agus Selamet Duniaji
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 12 No 1 (2023): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2023.v12.i01.p04

Abstract

This research aims to identify the effect of fermentation time with Lactobacillus rhamnosus MY2 isolate on the characteristics of peanut milk and determine the right fermentation time to produce fermented peanut milk with the best characteristics. This research used a completely randomized design (CRD) with variations in fermentation time which consisted of 3, 6, 9, 12, and 15 hours. The treatment was repeated 3 times to produce 15 experimental units. The data obtained were analyzed using the analysis of variance (ANOVA) method and if the treatment had a significant effect (P<0.05) on the observed variables, then continued with Duncan New Multiple Range Test (DNMRT). The results showed that the treatment of fermentation time had a significant effect on the pH, total LAB, total acid, the value of preference for aroma and taste, the value of score for sour taste and viscosity, and overall acceptance but had no significant effect on protein content, fat content, the value of preference for color and texture of fermented peanut milk. The 6 hours fermentation time produce the best characteristics of fermented peanut milk with criteria pH 5.43, total LAB 8.52 Log CFU/ml, total acid 0.13%, protein content 3.27%, fat content 22.78%, the color, aroma, sour taste, texture, and overall acceptability was liked.
Pengaruh Konsentrasi Ragi Rhizopus oligosporus DP02 Bali Terhadap Karakteristik Tempe Kacang Gude (Cajanus cajan (L) Millsp) Anisha Nathania Saraswati; Agus Selamet Duniaji; Luh Putu Trisna Darmayanti
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 12 No 1 (2023): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2023.v12.i01.p09

Abstract

The research was conducted with the aims to determine the effect of mold concentration with Rhizopus oligosporus DP02 Bali on the characteristic of pigeon peas tempeh and to determine the appropriate yeast concentration to produce tempeh with the best characteristic. The experimental design that used in this research was a completely randomized design with the treatment consisting of 5 levels of mold concentration, namely: 1%, 2%, 3%, 4%, and 5%. Each treatment was repeated 3 times to obtain 15 experimental units. The data were analyzed by analysis of variance and if there was a significant effect, the Duncan Multiple Range Test were perfomed. The results showed the yeast concentration had a significant effect on water content, ash content, protein content, fat content, carbohydrate content, crude fiber content, color (hedonic and scoring test), taste (hedonic test), texture (hedonic and scoring test), and overall acceptance (hedonic test) and had no effect on the aroma (hedonic test). The result show that the tempeh with a concentration of 5% yeast resulting the best tempeh characteristic with the criteria of 62.64% water content, 0.69% ash content, 9.66% protein content, 3.31% fat content, 23.70% carbohydrate content, 11.13% crude fiber content, color sensory test, aroma, taste, texture, overall acceptance are liked.
Pengaruh Konsentrasi Ragi Rhizopus oligosporus DP02 Bali Terhadap Karakteristik Tempe Kacang Hijau (Vigna radiata, L.) Karimatul Izzah; Agus Selamet Duniaji; I Gusti Ayu Ekawati
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 12 No 1 (2023): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/itepa.2023.v12.i01.p10

Abstract

The research was conducted with the aims to determine the effect of yeast concentration with Rhizopus oligosporus DP02 Bali on the characteristics of green bean tempeh and to determine the righ yeast concentration to produce green bean tempeh with the best characteristic. The research used completely randomized design with yeast concentration consisting of 5 different levels as the treatment, namely 1%, 1,5%, 2%, 2,5%, and 3%. Each levels was repeated 3 times to obtain 15 experimental units. The data were analyzed using ANOVA, and if there was a significant effect, the Duncan Multiple Range Test were perfomed. The results showed that the treatment had a significant effect on the green bean tempeh water content, ash content, protein content, fat content, carbohydrate content, curd fiber content, aroma, taste, texture, color, and overall acceptance. Yeast concentration of 3% produced the green bean tempeh with the best characteristics with water content of 54.17%, ash content of 0.60% , protein content of 8.22%, fat content of 2.53%, carbohydrate content of 33.79%, curd fiber content of 9.48%, and characteristics of color was liked, taste was liked, texture was liked, and overall acceptance was liked.
Kandungan Antosianin dan Karakteristik Sensori Kue Pia Ubi Ungu Agus Selamet Duniaji; I A.A. Anom Jambe; Ni Nyoman Puspawati
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol. 3 No. 1 (2018): April
Publisher : Fakultas Teknologi Pertanian, Universitas Udayana Gedung GA, Fakultas Teknologi Pertanian, Universitas Udayana Jl. Raya Bukit Jimbaran, Jimbaran, Kuta Selatan, Bali Telp/Fax: (0361) 701801

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2018.v03.i01.p04

Abstract

The aim of this research is to know the anthocyanin content and Characteristics of Pia cake of Purple Sweet Potato as well as The Indonesia National standards (SNI) and has sensory properties are acceptable and preferred by consumers. Specific objectives of this study was to determine the effect of the addition of purple sweet potato anthocyanin content, moisture content and texture of thePiaPurple Sweet Potato. This research was carried out to know the substitution of purple sweet potato and wheat such as (100% : O%= T0), (95% : 5%,=T1) (90% : 10%=T2), (85 %: 15%=T3), (80% : 20%=T4 and 75% : 25%=T5). Experiments were performed with 3 repetitions. Parameters measured were anthocyanin content (Apriantono et al., 1989), the water content with the oven method (Selamet Sudarmaji, 1997) and sensory test with Scoring test. The research of results showed that the addition concentration of purple sweet potato 10% give the best results pia cake with the characteristics of the water content of 29.10%, anthocyanin 2.87%, texture preferred (score 6:06), color preferred (6:20) and the flavor is preferred (score 6:53)
Co-Authors A.A.G.N. Anom Jambe Adelya Fer Hidayat Aditya Yusril Hidayat Amelia Rovina Amna Hartiati Anak Agung Made Dewi Anggreni Anak Agung Made Dharma Puthera Anastasia Laksmi Pratiwi Anisha Nathania Saraswati Ave Regina Rosari Bryan Bryan Dewa Ngurah Suprapta Dhamas Nurhasanah Dhimas Ridwan Thoyibi Edwin Sam Putra Surbakti Elia Rose Simanungkalit Erza Aulia Fitri Maria Clarensia Sitanggang I A Mahatma Tuninggrat I A.A. Anom Jambe I B Yoga I Desak Putu Kartika I Dewa Gde Mayun Permana I Gst Ngurah Agung Anita Budiarti I Gusti Ayu Agung Mirah Widiastiti I Gusti Ayu Ekawati I Gusti Ayu Lani Triani I Gusti Ngurah Agung I Gusti Putu Bhuana Aristya Putra I Ketut Peri Andika I Ketut Suter I Made Kartana I Made Sugitha I N Satya Kumara I Nyoman Setiawan I Putu Andriana Sastrawan I Putu Gede Krisnawan I Putu Suparthana I Wayan Rai Widarta I Wayan Wisma Pradnyana Putra I. A Mahatma Ida Ayu Dwi Giriantari Ida Ayu Mahatma Tuningrat Ida Bagus A. Swamardika IGAA. Mirah Widiastiti Kahfi Ardhian Karimatul Izzah Karlina Ayu Putri Dhahana KOMANG AYU NOCIANITRI Luh Putu Trisna Darmayanti M. Indri H.A M.I. Hapsari A M.S.P. Mahardika Made Surya Permana Mahardika Masayuki Hashimoto Maya Anita Putri Maya Anita Putri N. M. I. H. Arihantana N.M.I.H. Arihantana Ni Luh Ari Yusasrini Ni Luh Putu Gita Darmasari Ni Made Gress Rakasari Nomer Ni Made Indri Hapsari Arihantana Ni Made Yusa Ni Nyoman Puspawati Ni Putu Candra Utami Ni Putu Dewi Aristyawati Ni Wayan Intan Afsari Dewi Ni Wayan Wisaniyasa Nur Wienda Permata Wulandari Putu Ari Sandhi W Thanastasya Yolanda Wayan Gede Ariastina Yemima Dwi Gita Sembiring Yemima Maria Lasmaroha Sitompul Yovanda Rizky Nasution