scholarly journals PENGARUH SUBSTITUSI TEPUNG UBI JALAR UNGU TERMODIFIKASI (Ipomoea batatas var Ayamurasaki ) TERHADAP KARAKTERISTIK WAFFLE

2019 ◽  
Vol 8 (2) ◽  
pp. 160
Author(s):  
Ni Kadek Ayu Anggarawati ◽  
I Gusti Ayu Ekawati ◽  
Anak Agung Istri Sri Wiadnyani

The study aims to determine the effect substitution of modified purple sweet potato flour on the characteristics of waffle and to know the best substitution of modified purple sweet potato flour with pregelatinization. The study design used was randomized group design with the treatment substitution of modified purple sweet potato flour and wheat flour, which consists of 6 levels such as: 0% : 100%, 20% : 80%, 40% : 60%, 60% : 40%, 80% : 20%, 100% : 0%. The treatment was repeated 3 times to obtained 18 units of the experiment. The data were analysed by analysis variance and if the treatment had an effect on the variable then continued with Duncan test. The result showed substitution of modified purple sweet potato flour and wheat flour had a significant effect on the content of ash, crude fiber, antioksidan capacity, texture, criteria hedonic and skor of colour, texture  and taste. Substitution of modified purple sweet potato flour 100% had the best characteristics, with 41,84% water content, 1,94% ash content, 7,17% coarse fiber content, 81,65 (mg GAEAC/kg) antioksidan capacity, 1,64 N texture, criteria skor colour dark brown, texture soft, taste of purple sweet potato very strong  and criteria hedonic colour, aroma, texture, taste and overall acceptance were like.

Author(s):  
Olfita S. Montolalu ◽  
Tineke M. Langi ◽  
Teltje Koapaha

ABSTRACTThe aim of this research is to produce a quality semprong cookies by mixing purple sweet potato flour and flour properly, based on the panelists' preference level and the nutritional characteristics of the "semprong" cake. The organoleptic test results of the "semprong" cake which are preferred in terms of color, taste, aroma and texture are treatment A (10g purple yam flour + 90g wheat flour). The results of the proximate content analysis of "semprong" cakes for water content ranged from 3.16% - 3.77%, ash content ranged from 1.32% - 2.09%, fat content ranged from 16.26% - 20.95%, content protein ranges from 7.06% - 8.95%, carbohydrate content ranges from 66.31% - 71.21%.Keywords : Semprong Cake, Purple Sweet Potato Flour, Wheat Flour


2018 ◽  
Vol 3 (1) ◽  
pp. 9-15
Author(s):  
Darni Lamusu

This study aims to determine the organoleptic test of purple sweet potato jalangkote The analysis of research data is designed with Completely Randomized Design which is arranged with 1 factor that is purple sweet potato (J) : J0 = 50% purple sweet potato flour + 50% wheat flour; J1 = 60% purple sweet potato flour + 40% wheat flour; J2 = 70% purple sweet potato flour + 30% wheat flour; J3 = 80% purple sweet potato flour + 20% flour. Based on the results of organoleptic tests showed that the panelist's assessment of jalangkote sweet potato products gave a very real effect on the color, aroma and texture of jalangkote, Then give no real influence on jalangkote sweet potato flavor purple. The best treatment based on panelist appraisal was treatment of J3 ie 80% purple sweet potato flour + 20% flour in color (4.15) and flavor (4.25). Then the best treatment on the scent (4.50) and texture (4.45) is the treatment of 50% purple sweet potato flour + 50% wheat flour


2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Abdul Rahim ◽  
Rostiati Rostiati ◽  
Pratiwi Pratiwi

Sweet potatoes in general, including vines that have tubers as a producer of carbohydrates, but the quantity and quality is very different from other tubers. Instant noodles are generally made from raw materials of wheat flour, but with the abundance of sweet potatoes found, noodles are made using purple sweet potato flour instead of wheat flour. The purpose of this study was to determine the effect of purple sweet potato flour substitution at various concentrations on the physical, chemical and sensory tests of instant noodles. The study was conducted at the Agroindustry Laboratory, Faculty of Agriculture, University of Tadulako, from June to December 2019. The experiment was arranged using a Completely Randomized Design (CRD) with 1 factor, namely the substitution of instant noodles purple sweet potato flour at a concentration of 0.5,10,15, 20.25 and 30%. The treatment was repeated 3 times so that 21 units of the experiment were obtained. For sensory testing using a Randomized Block Design (RBD) with a panelist of 30 people. Observation parameters consisted loss of solids due to cooking (KPAP), water absorption, water content, ash content and sensory tests. The results of the study of purple sweet potato flour substitution at various concentrations gave the best effect on the concentration of 30% on instant noodles produced based on physical, chemical and sensory properties. With the highest loss of solids due to cooking ( KPAP). The absorption of instant noodles decreases with increasing concentration of purple sweet potato flour. Instant noodle water content tends to be constant in every treatment. Ashes of instant noodles increase with increasing concentration of purple sweet potato flour and the sensory properties of color, texture, aroma, and taste of instant noodles produced increase with increasing concentration of purple sweet potato flour with hedonic scale categories like. Noodles substituted with purple sweet potato flour can be consumed as instant noodles such as those circulating in the market.


2018 ◽  
Vol 7 (1) ◽  
pp. 30-35
Author(s):  
Helen C.D. Tuhumury ◽  
La Ega ◽  
Nuram Keliobas

The objective of the study was to determine the concentation ratio between purple sweet potato flour and wheat flour in order to produce purple sweet potato cookies having particular nutritional content and preffered by consumers. A completely randomized experimental design was applied in this study. One experimental factor which was ratio of purple sweet potato flur and wheat flour consisting five level of treatments, was as signed i,e 100%: 0%, 80:20%, 60%:40%, and 20%: 80% respectively. Variables measured were chemical composition (protein, fat, moisture, anthocyanin content) and sensory properties (colour, taste, texture, overall likeness). Results showed that most variables were influenced by the ratio of sweet potato flour and wheat flour, excluding moisture content. The ratio of 80% sweet potato flour : 20% wheat flour resulted in cookies with good characteristics and mostly preffered by parelists. Anthocyamin content of this particular cookies (80%: 20%) was similar to that of sweet potato flour.  Keywords: cookies, purple sweet potato flour, wheat flour   ABSTRAK  Penelitian ini bertujuan untuk menentukan konsentrasi tepung ubi jalar ungu dan tepung terigu yang tepat untuk menghasilkan kue kering ubi jalar ungu dengan kandungan gizi tertentu dan disukai. Rancangan yang digunakan adalah rancangan acak lengkap yang terdiri satu faktor dengan lima taraf perlakuan yaitu : Perbandingan tepung ubi jalar ungu dan tepung terigu 100% : 0%, 80% : 20%, 60% : 40%, 40% : 60%, 20% : 80%. Peubah yang di amati adalah komposisi kimia (penentuan kadar protein, kadar lemak, kadar air, kandungan antosianin) dan uji organoleptik (warna, rasa, tekstur, tingkat kesukaan). Hasil penelitian menunjukan bahwa perlakuan perbadingan tepung ubi jalar ungu dan tepung terigu mempengaruhi peubah-peubah yang diamati, sedangkan untuk kadar air tidak berbeda nyata. Berdasarkan hasil penelitian perlakuan perbandingan tepung ubi jalar ungu dan tepung terigu 80% : 20% dapat menghasilkan kue kering yang terbaik dan disukai. Kandungan antosianin kue kering ubi jalar dengan formulasi 80 : 20% tidak berbeda jauh dengan kandungan antosianin tepung ubi jalar. Kata kunci: kue kering, tepung terigu, tepung ubi jalar ungu


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Nurfitrianti Bulotio ◽  
Adnan Engelen ◽  
Nursia Lateka

This study aimed to test the physical and chemical quality characteristics of corn tortillas with substitute purple sweet potato flour. This study used a completely randomized design (CRD) and LSD test if there was a significant effect. The tests carried out included organoleptic tests, air content analysis, ash content analysis, color analysis and texture analysis. The results showed that the best formulation of tortillas chips was a P4 treatment with the addition of 75% purple sweet potato flour: 25% corn, with a texture value of 4.267, taste 4.75 and aroma 4.56 and for the best color treatment found in the addition of P3 had a value of 4.31. The best treatment in the chemical analysis is the P4 treatment had a color value of -10.93, moisture content of 8.94 and ash content of 2.57. For texture analysis test the highest treatment was P2 treatment with the addition of 25% purple sweet potato flour: 75% corn with a value of 1139.15.


2019 ◽  
Vol 8 (3) ◽  
pp. 248
Author(s):  
Putri Ayu Wulandari ◽  
I Made Sugitha ◽  
Ni Made Indri Hapsari Arihantana

This research was aimed to identify the comparison effect of rice flour and purple sweet potato (Ipomoea batatas L. Poir) paste on the characteristics of cendol and to identify the right ratio of rice flour and purple sweet potato paste to produce cendol with the best characteristics. Completely randomized design was used in this research with treatment ratio of rice flour and purple sweet potato paste which consisted of 6 levels :  50% : 50%, 40% : 60%, 30% : 70%, 20% : 80%, 10% : 90%, and 0% : 100 %. Each treatment was repeated 3 times, resulting in 18 experimental units. The data were then analyzed with analysis of variance and if the treatment had an effect on the variable, the Duncan test was performed. The results showed that rice flour and purple sweet potato paste ratio had significant effect on water content, ash content, crude fiber content, antioxidant activity, anthocyanin, color, texture, flavor, taste, and overall acceptance of cendol. Making purple sweet potato cendol without using rice flour resulted the best characteristic under the following criteria: 89,47%  water content, 0,14% ash content, 1,44% crude fiber content, 93,42 mg/mL antioxidant activity, 1,37 mg/100g  anthocyanin, dark purple and very liked color, texture chewy and liked, flavor typical of purple sweet potato and liked, taste very typical of purple sweet potato and liked, and overall acceptance very liked.   Keyword : cendol, purple sweet potato paste, rice flour


2021 ◽  
Vol 10 (2) ◽  
pp. 268
Author(s):  
Ratna Mei Rani ◽  
I Gusti Ayu Ekawati ◽  
Anak Agung Istri Sri Wiadnyani

The research aim to determine the effect of ratio purple sweet potato flour and soybean flour on characteristics functional flakes and determine the exact ratio of purple sweet potato flour and soybean flour which can produce functional flakes with the best characteristics. The Completed Randomized Design was used in this research consisting ratio of purple sweet potato flour and soybean flour including (P1) 90% : 10%, (P2) 80% : 20%, (P3) 70% : 30%, (P4) 60% : 40%, (P5) 50% : 50%. The data obtained were analyzed by variance and if the treatment had significant effect followed by Duncan Multiple Range Test (DMRT). The result showed that flakes with comparison of 70% purple sweet potato flour and 30% soybean flour is the best treatments with criteria moisture content of 3.05%, ash content of 2.09%, protein content of 17.04%, crude fiber 3.76%, anthocyanin total 21.07 mg/100g, antioxidant activity 39.55%, water absorption 165.66% and color is purple and like, aroma is like, texture is crispy and like, taste is like and overall acceptance is like.


2021 ◽  
pp. 1-17
Author(s):  
O. A. Kure ◽  
C. C. Ariahu ◽  
B. D. Igbabul

Bread was produced from wheat (Trititum spp) orange flesh sweet potato (Ipomoea batatas L.) flour, starch and non-starch residue blends. The orange-fleshed sweet potatoes were washed, peeled, sliced, dried and milled to flour. The starch and non-starch residue were also produced from the orange-fleshed sweet potatoes. Different proportions of wheat and flour, wheat and starch and wheat and non-starch residue of orange-fleshed sweet potato with increasing level of orange-fleshed sweet potato at 10, 20, 30 and 40% addition in wheat were prepared. Control samples were 100% wheat flour (A0), 100% orange-fleshed sweet potato flour (A1), 100% orange-fleshed sweet potato starch (B1) and 100% orange-fleshed sweet potato non-starch residue (C1). Breads from these different proportions were formulated. The proximate, mineral, vitamin, physical properties and sensory attributes of the bread samples and their composites were determined. The GENSTAT Statistical Software (version 17.0) was used for data analyses. The Proximate compositions of the bread ranges as follows; moisture 26.30-36.21%, protein 0.85-7.89%, fat 6.33-8.93%, fiber 0.82-4.92%, ash 0.56-2.11% and carbohydrates 41.26-64.84%. The physical properties of the breads ranged from 210.60-254.00 g, 0.05-2.40 mm, 317.60-440.60 cm3 and 1.25-2.10 for loaf weight, oven spring, loaf volume and specific volume respectively. Mineral and vitamin composition for breads samples ranged respectively thus for calcium 18.45-33.21 zinc 0.92-6.27, magnesium 0.28-19.33, phosphorus 31.00-319.60 and potassium 56.30-352.60, vitamin B1, 0.10-0.37, vitamin B2, 0.07-1.23, vitamin B6, 0.09-1.25, vitamin B12 0.04-1.13 mg/100 g, vitamin C 0.12-14.17 mg/100 g and vitamin A 0.00-8193 µg/100 g.The sensory evaluation results indicated that up to 20% substitution of wheat flour with orange-fleshed sweet potato flour, starch and non-starch residue flours was acceptable in bread formulation.


2019 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Hervelly Velly

The aim of this study was obtained ratio of wheat flour and modified sweet potato flour that exactly on dried noodle, sweet bread and biscuits which can accepted by consumer.The experimental Randomized Block Design (RBD) was used in this study with one factor and two times replicated. The factor was recearched as between wheat flour and modified sweet potato flour with leves a0 (100% : 0%), a1 (0% : 100%), a2 (5% : 95%), a3 (10% : 90%), a4 (15% : 85%), a5 (20% : 80%), a6 (25% : 75%), a7 (30% : 70%) and a8 (35% : 65%).The result of study indicated that ratio between wheat flour and modified sweet potato flour was significantly effected on texture, flavour and taste of dried noodle, sweet bread and biscuits.The result of organoleptic test for dried noodle, sweet bread and biscuits obtained the best comparison between wheat flour and modified sweet potato flour of a8 (35% flour and 65% modified sweet potato flour. The results analysis of dried noodle was moisture 6,4039%, starch 29,6665 %, protein 6,2191% and cooking loss 18,7121%.The results analysis of sweet bread was mouisture 24,7525%, starch 32,9982% and protein 9,0174%. and the results anaysis of biscuits was mouisture 2,4390%, starch 4,8007% and protein 3,9785%.


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