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Jurnal Teknologi Pangan dan Gizi

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Published by Universitas Katolik Widya Mandala Surabaya

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Articles 7 Documents

Search results for , issue "Vol 14, No 2 (2015)" : 7 Documents clear

PENGARUH KONSENTRASI BUAH JAMBU BIJI MERAH TERHADAP SIFAT FISIKOKIMIA DAN ORGANOLEPTIK FRUIT LEATHER PULPKULIT DURIAN - JAMBU BIJI MERAH Putro, Candra Adi; Surjoseputro, Sutarjo; Setijawati, Erni
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

Fruit leather can be made from the pulp of durian skin. Making fruit leather pulp of durian skin has a weakness that has no taste and flavor as well as color less attractive so that material needs to be added with a strong flavor and color from the outside. One of them is with the addition of guava fruit. The concentration guava red give you different characteristics of texture, color, and flavor leather is produced. The research was done to determine the effect of concentration red guava on physicochemical and organoleptic leather pulp of durian skin red guava. The research design used was the RAK (Random Design Group) non factorial factors examined were the concentration red guava that consists of 6 (six) in the form of 10% (b/b); 20% (b/b); 30% (b/b); 40% (b/b); 50% (b/b); 60% (b/b), and repeated treatment level as many as four (4) times. The parameters tested included the physicochemical (moisture content, aw, texture (flexibility), pH, and color) and organoleptic (a fondness for taste, texture, and color). The use of red guava increased aw, moisture content, texture (flexibility), redness, on the other hand decreasing the value of pH, lightness, and yellowness of leather. The best concentration of red guava was at 40% which had pH 3.16, aw0.60, moisture content 17.35%, texture (flexibility) 36.73 N/s, lightness 43.36, redness 26.21, and yellowness 21.35 with sensory scores for flavor, texture and color were 4.59, 4.58, and 5.24 respectively with scoring 1-7.

KAJIAN KARAKTERISTIK EDIBLE FILM DARI TAPIOKA DAN GELATIN DENGAN PERLAKUAN PENAMBAHAN GLISEROL Hendra, Atika Ariani; Utomo, Adrianus Rulianto; Setijawati, Erni
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

The use of plastic as packaging material both primary and secondary is much encountered with the aim of protection to the packaged product. However, plastic can cause environmental pollution since waste from plastic is hard to decompose naturally. This can be minimized by making the packaging biodegradable and can be eaten. Edible film is a category of food packaging in the form of sheets that can be eaten together with the product. This study uses data analysis in the form of a mathematical model consisting of one factors, factors increase the concentration of glycerol, which consists of seven levels of treatment were 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3%. Repetition performed a total of three times so that there are 21 experimental units. The parameters to be tested are tensile strength, elongation, moisture content, and Water Activity (Aw). The data obtained from each test will be analyzed by finding a mathematical model using regression analysis. Differences addition of glycerol added percentage shows a very close relationship to the attractiveness, percent elongation, moisture content, and Water Activity (Aw). The higher the percentage of glycerol is added, the percent elongation and the moisture content of edible film is increasing, while the tensile strength and Aw decreases. The maximum tensile force can be arrested by a film before it was torn ranged from 9.609 to 465.904 kg/cm2, change the maximum length of the edible film to cut off ranging between 8-108%. The water content of edible film ranges between 10:46 - 13.88%, Aw values ranging between 0551-0574.

PENGARUH SUBSTITUSI TERIGU DENGAN TEPUNG KACANG MERAH PREGELATINISASI TERHADAP SIFAT FISIKOKIMIA DAN ORGANOLEPTIK COOKIES Dewi, Sandra; Trsinawati, Chatarina Yayuk; Sutedja, Anita Maya
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

ABSTRACT Substitution of wheat flour with kidney bean flour can be done because both are starch-based materials. The use of kidney bean flour can reduce the use of wheat flour and increase the utilization of local food. The use of pregelatinized kidney bean flour aimed to improve the digestibility values and eliminate the starchy taste in cookies. The aim of this study was to findout the level of substitution wheat flour with pregelatinized kidney bean flour to produce cookies that can still be accepted by the panelists. The level substitution of wheat flour with pregelatinized kidney bean flour used at 0%, 10%, 20%, 30%, 40%, 50%, 60%. The results showed that the difference of substitution of wheat flour with pregelatinized kidney bean flour gave significant effect on the physicochemical properties (moisture content, specific volume, broken power, and color) and sensory properties (preference of favoring of color, broken power, mouthfeel, taste). The higher level substitution of wheat flour with pregelatinized kidney bean flour caused increasing in moisture content and decreasing in specific volume and broken power of cookies. The level substitution of wheat flour with pregelatinized kidney bean flour chosen was 30%, with the moisture content of 2,26%; specific volume 1,54 cm3/g; broken power 2652,98 g/cm; lightness 72,65; redness 8,53; yellowness 29,13; chroma 30,16; hue 73,59; and sensoric score for color, broken power, mouthfeel, taste with each score 4,31; 5,13; 4,87; and 4,79, out of score level 1 to 7 respectively.

KAJIAN KADAR HCN DAN KARAKTERISTIK PATI PADA TEPUNG KORO PEDANG (Canavalia ensiformis) BERDASARKAN WAKTU PERENDAMAN BIJI DALAM AIR PANAS DAN LARUTAN NATRIUM BIKARBONAT (NAHCO3) Putro, Novita Tommy Lasmono; Arisasmita, Joek Hendrasari; Srianta, Ignatius
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

Jack bean (Canavalia ensiformis) is potential utilized as food ingredient because it contains high nutrients, but it contains high glucocyanide (toxin) and has hard texture. This problem can be overcome by the aim of soaking to soften the texture and reduce the toxins to produce an edible and safety flour. The research aim is to examine the influence of media types and soaking time (12, 18, 24 hours) on HCN content and starch characteristics in jack bean flour. The research design was nested randomized block using two factors (media types and soaking time). The treatments are soaking in water (95Â±2Â°C) and sodium bicarbonate solution 0,4%, for 12 ,18 ,24 hours. Dependent variables measured in this study were levels of HCN, starch content, resistant starch content, starch granule profile, and viscoamylography. The data obtained were analyzed using ANOVA at Î± = 5% for determining whether or not significant differences between treatments in the study. Data rocessing followed by LSD test (Least Significant Different) at Î± = 5% if there is a significant effect by treatment. The results showed that the characteristics of starch and HCN levels were affected by the treatment significantly. Total starch content and gelatinization temperature from soaking in hot water were 51,30%; 86Â°C while sodium bicarbonate were 44,29%; 86,38Â°C. Resistant starch contents were between 11.90% to 18.52%. HCN content from soaking during 24 hours were resulting the minimum level, where soaking in hot water and sodium bicarbonate were 9,4997 mg/kg and 10,8279mg/kg respectively.

PENGARUH PROPORSI SUKROSA DAN ISOMALT TERHADAP SIFAT FISIKOKIMIA DAN ORGANOLEPTIK SOFT CANDY SUSU KEDELAI Sutedjo, Vonny Indra; Kusumawati, Netty; Widyawati, Paini Sri
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

Soft candy is a kind of cotton candy which has a chewy and soft texture that has approximately 6-8% of water content. In this study, soy milk soft candies were made with isomalt as the replacement of sucrose that affected the physicochemical and organoleptic properties of soy milk soft candies. The design of the study was RGD (Randomized Block Design) single factor, namely the proportion of sucrose and isomalt. The proportion of sucrose and isomalt consisted of six level which are 75:25, 60:40, 45:55, 30:70, 15:85, and 0:100%(b/b)) with four replications. The parameters affected physicochemical properties (moisture content, reducing sugar levels, and texture) and the organoleptic properties preferences for taste, texture, and ease bitten). From the weighting test, it was found that the best treaement was P4 (sucrose : isomalt =30:70% (b/b)) with score of 7,52% for water content, 8,2322% of reducing sugar, hardness of 573,038 g.sec, adhesiveness of -74,644 g.sec, 4,7 for preference of taste (rather like), 4,9875 (rather like) for stickiness, and 4,2625 for chewiness (neutral).

PENGARUH KONSENTRASI GARAM TERHADAP SIFAT FISIKOKIMIA DAN ORGANOLEPTIK TELUR ASIN BELUNTAS (Pluchea indica less)-TEH HITAM (Camelia sinensis) Adventi, Brigita Santi; Widyawati, Paini Sri; Utomo, Adrianus Rulianto
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

ABSTRACT Egg is one kind of high nutritious food that can be easily damaged. Salting makes the egg shelf life longer than fresh egg, otherwise the fishy smell of fresh eggs has not been reduced. Therefore additional materials such as Pluchea leaves (Pluchea indica less) and black tea (Camelia sinensis) are needed to remove the fishy smell. The experimental design was a randomized block design (RBD) single factor, with the concentration of salts consist of 7 (seven) treatments, including 25%, 30%, 35%, 40%, 45%, 50%, and positive control. Each treatment was repeated four (4) times. Parameters tested were moisture content, salinity, texture, color, and organoleptic testing (color, flavor, and aroma). The data obtained were analyzed using ANAVA test at Î± = 5%, which aimed to determined the presence or absence of a real difference to the parameters. If the data obtained significantly different results then Duncan's Multiple Range Test Test (DMRT) with Î± = 5% was used to determine the level of treatment that gave a real difference. Research showed that the using of different salt concentrations was significantly affect the albumen and yolk salinity, hardness, adhesiveness, lightness, and chroma parameters, while cohesiveness and hue parameter were only visible in albumen and organoleptic of yolk. However, different treatment in salt concentration showed no significant difference in albumen and yolk in moisture content, while cohesiveness and hue parameters didnâ€™t have significant effect on yolk and organoleptic of albumen.

PEMBUATAN YOGHURT BUAH NAGA MERAH (Hylocereus polyrhizus L.): PROPORSI SARI BUAH DAN SUSU UHT TERHADAP VIABILITAS BAKTERI DAN KEASAMAN YOGHURT Teguh, Ryanbakti Pranata Kusuma; Nugerahani, Ira; Kusumawati, Netty
Jurnal Teknologi Pangan dan Gizi Vol 14, No 2 (2015)
Publisher : Widya Mandala Surabaya Catholic University

Red dragon fruit in yoghurt may incrase fermentation rate. This reasearch was to determine the influence of the proportion of red dragon fruit juice and UHT milk on viability of bacteria and yoghurt acidity. The experimental design used Randomized Block Design (RBD) with single factors, proportion of fresh juice and UHT milk 0:100 (M0), 5:95 (M1), 10:90 (M2), 15:85 (M3) 20:80 (M4) 25:75 (M5). The analyzed parameters were viability of bacteria, pH, and acidity of yoghurt. Obtained data statistically analyzed by ANOVA (Analysis of Varians) at Î± = 5%. If there was a significant difference, then it continued by DMRT (Duncan's Multiple Range Test) test to determine which level of proportion that gives significant differences. The difference in the proportion of red dragon fruit juice and UHT milk was significantly effect to the viability of bacteria, pH and total acid of yoghurt. The higher proportion of red dragon fruit juice increased viability of bacteria and total acid while pH decreased. Based on research, lactic acid bacteria ranged between 9,4624-10,9345 log cfu/m, pH ranged between 4,367-4,806; and total acid ranged between 24,33-48,33 oSH.

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