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All Journal Itepa : Jurnal Ilmu dan Teknologi Pangan
Putu Ari Sandhi W
Jurusan Ilmu dan Teknogi Pangan, Fakultas Teknologi Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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KEMAMPUAN DAYA HAMBAT EKSTRAK DAUN PEGAGAN (Centella asiatica (L.) Urban) TERHADAP PERTUMBUHAN Escherichia coli ATCC 8739 Tanzila Agvadila; Putu Ari Sandhi W; Ni Nyoman Puspawati
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 6 No 2 (2017): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

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Abstract

This study aims to determine the inhibition of leaf extract of pegagan (Centellla asiatica (L.) Urban) on the growth of Escherichia coli ATCC 8739 and to know its best contact time which can inhibit the growth of Escheriachia coli ATCC 8739 bacteria. The experimental metode was used in this research with consisting of 4 level in 0 hours, 6 hours, 12 hours and 24 hours. Data of research result presented in table and picture form. The data obtained were analyzed using descriptive analysis. The results showed that pegagan leaf extract contain flavonoids, tannins and saponins. Based on quantitative analysis pegagan leaf extract obtained flavonoids of 0.09% and tannin of 0.10%. Leaf extract of pegagan can inhibit the growth of Escherichia coli ATCC 8739 but less than one log cycle and contact time of pegagan extract with Escherichia coli most precisely is 12 hours with decrease of bacteria equal to 1.3 x 101 and 40.62% of bacteria test.
PENGARUH PERBANDINGAN TERIGU DENGAN PUREE LABU KUNING (Cucurbita moschata ex. Poir) TERHADAP KARAKTERISTIK KUE LUMPUR Vennyta Agustin; I Made Sugitha; Putu Ari Sandhi W
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 6 No 2 (2017): 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 | Full PDF (218.508 KB)

Abstract

The research aims to determine the effect of the comparison ofwheat flour with pumpkin (Cucurbita moschata ex. Poir) puree on the characteristics of “kue lumpur” and to determine the right ratio of pumpkin puree and wheat flour to produce “kue lumpur” with the best characteristics. The research using Completely Randomized Design with 5 treatments of ratio between pumpkin puree with wheat flour, namely : 100% wheat flour and 0% pumpkin puree, 90% wheat flour and 10% pumpkin puree, 80% wheat flour and 20% pumpkin puree, 70% wheat flour and 30% pumpkin puree, and 60% wheat flour and 40% pumpkin puree. Each treatment was repeated three times to obtain 15 experimental units. Data being acquired would be analyzed with variance analysis and if there was an effect to the variables being examined, then it would be continued with Duncan test. The result of research showed that the ratio of 70% wheat flour and 30% pumpkin puree resulted in the best “kue lumpur” characteristic with 43,33% water content, 0,70% ash, 3,88% protein, 28,67% fat, 23,42% carbohydrate, and 142,21 ?g/gbeta carotene. For sensory evaluation, thecolor scoring (yellow rather orange), color hedonic (like), flavor scoring (rather typical pumpkin), flavor hedonic (like), texture scoring (soft), texture hedonic (like), taste scoring (typical pumpkin), taste hedonic (like) and overall acceptance (like).
DAYA HAMBAT EKSTRAK DAUN CABE JAWA (Piper retrofractum Vahl.) TERHADAP PERTUMBUHAN Staphylococcus aureus I Putu Gede Krisnawan; Putu Ari Sandhi W; Agus Selamet Duniaji
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 6 No 2 (2017): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

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Abstract

The research aimed to test the inhibition of javaneese pepper leaf extract (Piper retrofractum Vahl.) using distilled solvent to the growth of Staphylococcus aureus and to determine the best concentration of the javaneese pepper leaf extract can inhibit the growth of S.aureus. This research uses a Completely Randomized Design (RAL) using 5 treatments javaneese pepper leaf extract concentration of 20%, 35%, 50%, 65%, and 80% with 3 repetitions. Inhibition testing method using the discs to determine the diameter of the growth inhibition of S.aureus. The results of this research showed that all treatments give an inhibition effect 1.40; 2.38; 2.88; 3.76 and 4.4 mm respectivily. The best consentration treatment uses produced 4.49 mm diameter inhibition of 80% extract.On findings candidate phytochemical screening test showed that the leaf extract of javaneese pepper has active compounds such as saponins and flavonoids, as well as the findings Testing The levels of flavonoids have the highest levels of flavonoids are at treatment concentrations of 80% is equal to 222. 567 ppm.
PENGARUH PENAMBAHAN TERUNG BELANDA (Solanum betaceum Cav.) TERHADAP KARAKTERISTIK MARSHMALLOW Ni Putu Anita Devi; Putu Ari Sandhi W; Ni Made Yusa
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 7 No 1 (2018): 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 | Full PDF (215.665 KB) | DOI: 10.24843/itepa.2018.v07.i01.p03

Abstract

The aim of this research is to know the effect of the addition of tamarillo (Solanum betaceum Cav) to marshmallow characteristic, and to determine the addition of the best tamarillo to produce the best characteristic marshmallow. The experimental design used was Completely Randomized Design (RAL) by treatment with fruit pulp tamarillo as follows: 30 %, 40 %, 50 %, 60 %, 70 % and 80 %. Each treatment was repeated three times to obtain 18 experimental units. The results showed that the addition of tamarillo showed significant effect on water content, ash content, total anthocyanin, vitamin C, total sugar, elasticity, color score test, taste score test, texture score test, aroma and overall acceptance and no significant effect on color hedonic test and taste hedonic test. The best characteristic of marshmallow was obtained from the addition of tamarillo of 30 g with water content of 19.44%, ash content of 0.08%, total anthocyanin 0.44 mg / L, vitamin C 8.20 mg / 100g, total sugar 75.15%, elasticity of 1.47 N, color (rather pink and rather like), aroma (rather like), texture (very chewy and like), taste (sweet and rather like), overall acceptance (like).
PENGARUH KONSENTRASI JUS DAUN PEGAGAN DAN PERBANDINGAN CMC DENGAN MAIZENA TERHADAP KARAKTERITIK SORBET Ida Susilowati; Putu Ari Sandhi W; I Desak Putu Kartika Pratiwi
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 7 No 1 (2018): 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 | Full PDF (347.215 KB) | DOI: 10.24843/itepa.2018.v07.i01.p04

Abstract

This research was conducted to determine the effect of pegagan juice and the ratio of CMC with maizena to produced the best characteristics of sorbet and to know the concentration of pegagan juice and the ratio of CMC with the right maizena to produced the best characteristics of sorbet. This study used a Completely Randomized Design (CRD) factorial consisting of two factors, the first factor is concentration of pegagan juice as follow 5%, 7,5%, 10% and the second factors is ratio of CMC with maizena as follow 0:1, 0,25:0,72, 0,5:0,5, 0,75:0,25, 1:0. The data obtained were analyzed by analysis of variance and if the treatment have an effect on the parameters observed then continued with Duncan test. The results showed that the best characteristic of sorbet at 10% of pegagan juice concentration and the ratio of CMC with maizena 0.75: 0.25 with the criteria of antioxidant activity 53.50%, Total dissolved solids 210Brix, melting power 61%, green color, sweet taste and a sense of pegagan rather strong and rather soft texture.
PENGARUH SUHU DAN LAMA PENYEDUHAN TERHADAP AKTIVITAS ANTIOKSIDAN DAN SIFAT SENSORIS TEH HERBAL DAUN ALPUKAT (Persea americana Mill.) I Putu Dewata; Putu Ari Sandhi W; I Wayan Rai Widarta
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 6 No 2 (2017): 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 | Full PDF (229.559 KB)

Abstract

Avocado leave (Persea americana Mill) is one from nature that can be used as herbal tea. This research aimed to acknowledge the temperature and the length of brewing effect on antioxidants reaction and sensory properties of the avocado leave herbal tea, with the best charateristics. This research applied Completely Randomized Design (Rancangan Acak Lengkap/ RAL) with two factors factorial pattern, which were three levels of the water temperature; 70oC, 85oC, 100oC and three different length of brewing times, which were 1 minute, 3 minutes and 5 minutes. The experiment was done two times and there were 18 unit of experiments were done in total. The data taken from the experiment were analyzed with variance and the experiment was continued with DMRT test. The results show that the temperature and length of brewing affect highly on total phenol, flavonoid, antioxidants activity, and sensory properties of the avocado leave herbal tea. The best result is the experiment with 100oC water temperature in 5 minutes of brewing that produce total phenol 291,63mg/100g, total flavonoid 16,71mg/g, antioxidants reaction 18,55% and green brown sensory properties, specific avocado leave herbal tea smell, a bit bitter, and overall beloved result.
Co-Authors Agus Selamet Duniaji I Made Sugitha I Putu Dewata I Putu Gede Krisnawan I Wayan Rai Widarta Ida Susilowati Ni Made Yusa Ni Nyoman Puspawati Ni Putu Anita Devi Tanzila Agvadila Vennyta Agustin