scholarly journals Levels of anthocyanin, βeta carotene and antioxidant activity of functional biscuits flour of purple, yellow and white fleshed sweet potato

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
ZAINAL ABIDIN ◽  
LEWI JUTOMO ◽  
TITIK SRI HARINI
Keyword(s):  
Antioxidant Activity ◽  
Sweet Potato ◽  
Wheat Flour ◽  
Beta Carotene ◽  
Potato Flour ◽  
Visible Spectrophotometry ◽  
Uv Visible ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

Abstract. Abidin Z, Jutomo L, Harini TS. 2019. Levels of anthocyanin, βeta carotene and antioxidant activity of functional biscuits flour of purple, yellow and white fleshed sweet potato. Trop Drylands 3: 22-28. This study aimed to determine the levels of anthocyanin, beta carotene and antioxidant activity of functional biscuit formulas based on flour of purple, yellow and white fleshed sweet potato from Sumba Barat Daya District, East Nusa Tenggara Province. The levels of anthocyanin, beta carotene and antioxidant activity were analyzed using UV-Visible Spectrophotometry. The results showed that the highest levels of biscuit anthocyanin (95.05 ppm) was found in 75% purple sweet potato flour + 25% wheat flour formula.  The highest beta carotene level of biscuit (10,190.44 µg/100 g) was found in 75% of yellow sweet potato flour + 25% flour formula.  In biscuit products, the highest antioxidant activity (61.57%) was found in the treatment of 75% purple sweet potato flour + 25% flour formula.

scholarly journals Pengembangan Hybrid Tepung Ubi Jalar Kaya Antioksidan

2019 ◽  
Vol 10 (2) ◽  
pp. 153
Author(s):  
Sefanadia Putri
Keyword(s):  
Antioxidant Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Sweet Potato ◽  
Block Design ◽  
Acetobacter Xylinum ◽  
Potato Flour ◽  
Total Carbohydrate ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

<p>Sweet potato is one type of tubers found in Indonesia. <em>Hybrid</em> of sweet potato flour is obtained from the modification of the processing by fermentation using lactic acid bacteria. The purpose of this study was to determine the nutritional and antioxidant content of various types of <em>hybrid</em> sweet potato flour. This research is an experimental laboratory with a true-experiment design. The experiment was arranged in a complete randomized block design (RCB) with three replications. The treatments are 6 types of sweet potatoes which include purple sweet potato Var.Antin 1, purple sweet potato val.local, white sweet potato, orange sweet potato, Japanese purple sweet potato Var.Ayamurasaki and cilembu sweet potato. The study included the fermentation process using lactic acid bacteria (Acetobacter xylinum) addition concentration of 5%, siege, analysis of nutrient content (water, ash, protein, fat, fiber and carbohydrates) and antioxidant activity of various types of <em>hybrid</em> sweet potato flour. The results showed that various types of <em>hybrid</em> sweet potato flour significantly affect the nutritional content which includes water content, ash content, fat content, protein content, fiber content and total carbohydrate. The result of antioxidant activity in various types of <em>hybrid</em> sweet potato flour after fermentation treatment in a concentration of 5% Acetobacter xylinum ranged from 29,383-53.7929%. The lowest value obtained at cilembu <em>hybrid</em> sweet potato flour and the highest value was obtained from the Japanese <em>hybrid</em> sweet potato flour var.Ayamurasaki.</p>

scholarly journals Pengaruh Substitusi Tepung Ubi Jalar Ungu Terhadap Karakteristik Kue Kering

2018 ◽  
Vol 7 (1) ◽  
pp. 30-35
Author(s):  
Helen C.D. Tuhumury ◽  
La Ega ◽  
Nuram Keliobas
Keyword(s):  
Chemical Composition ◽  
Experimental Design ◽  
Sweet Potato ◽  
Wheat Flour ◽  
Anthocyanin Content ◽  
Potato Flour ◽  
Nutritional Content ◽  
Randomized Experimental Design ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

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

scholarly journals PENGARUH PENAMBAHAN TEPUNG UBI JALAR UNGU (Ipomea batatas L. var. ayamurasaki) TERHADAP KARAKTERISTIK HEALTH-PROMOTING YOGURT

2019 ◽  
Vol 8 (4) ◽  
pp. 341
Author(s):  
Gusti Chandra Rizki ◽  
Komang Ayu Nocianitri ◽  
I Made Sugitha
Keyword(s):  
Antioxidant Activity ◽  
Lactic Acid ◽  
Sweet Potato ◽  
Block Design ◽  
Potato Flour ◽  
Randomized Block Design ◽  
Health Promoting ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato ◽  
The Right

This research aims to identify the effect of adding purple sweet potato flour to the characteristics of health-promoting yogurt and to identify the right concentration of purple sweet potato flour to produce health-promoting yogurt with the best characteristics. This research used a Randomized Block Design (RBD) of the addition of purple sweet potato flour with the concentration of 0%, 2%, 4%, 6%, 8%. Each treatment was repeated 3 times, resulting in 15 experimental units. The data were then Analyzed of Variance (ANOVA) method and if the treatment had an effect on the variable, the Duncan Multiple Range Test (DMRT) were performed. The results showed purple sweet potato flour has significant effect to lactic acid total, pH, antioxidant activity, color, texture, and taste of health-promoting yogurt and did not significantly affect LAB total, hedonic taste, aroma, and overall acceptance. The addition of 8% purple sweet potato flour resulted in the best characteristic under the following criteria: 1.23% of lactic acid total, 3.73 of pH, 90.33% of antioxidant activity, 13.19 log CFU/ml of LAB total, pink color and indefferent color, thick texture rather like, sour taste rather like, flavor and overall acceptance rather like. Keywords: health-promoting yogurt, purple sweet potato flour, antioxidant.  

scholarly journals UJI ORGANOLEPTIK DAN SIFAT KIMIA KUE SEMPRONG CAMPURAN TEPUNG UBI JALAR UNGU (IPOMOEA BATATAS) DAN TEPUNG TERIGU

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Olfita S. Montolalu ◽  
Tineke M. Langi ◽  
Teltje Koapaha
Keyword(s):  
Sweet Potato ◽  
Wheat Flour ◽  
Ipomoea Batatas ◽  
Potato Flour ◽  
Test Results ◽  
Nutritional Characteristics ◽  
Yam Flour ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato ◽  
Purple Yam

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

scholarly journals UJI AKTIVITAS ANTIOKSIDAN SOSIS ANALOG TEMPE DENGAN PENAMBAHAN TEPUNG UBI JALAR UNGU TERHADAP PENURUNAN KADAR GULA DARAH MENCIT DIABETES

Pro Food ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. 383
Author(s):  
Maelan Hairani ◽  
Satrijo Saloko ◽  
Dody Handito
Keyword(s):  
Antioxidant Activity ◽  
Blood Glucose ◽  
Blood Glucose Level ◽  
Sweet Potato ◽  
Glucose Level ◽  
Potato Flour ◽  
Diabetic Mice ◽  
Glucose Content ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

ABSTRACT This research was aimed to observe the effect of the addition of purple sweet potato flour in the making of tempeh analog sausage on antioxidant activity, anthocyanin total, reducing sugar content and antioxidant capability on decreasing of blood glucose level in diabetic mice. The method that was used in this research was Completely Randomized Design (CRD) which consist of five treatments i.e. 0%; 10%; 15%; 20% and 25% addition of purple sweet potato flour by four replications. The data were analyzed by Analysis of Variance (ANOVA) at α = 5% using Co-stat and SPSS 21 for windows software by further analyzed Polynomial Orthogonal Method (POM). The results showed that the addition of purple sweet potato flour treatments gave significant effect on antioxidant activity, anthocyanin total, and decreasing of blood glucose level in diabetic mice which feed by the tempeh analog sausage, however gave non significant effect on the reducing glucose content of the tempeh analog sausage. The 25% addition of  purple sweet potato flour was the best treatment by 31.44% of antioxidant activity; 8.22 mg/L of anthocyanin total; 1.13% of reducing glucose content and could decrease blood glucose level in diabetic mice equal to 387 mg/dL. Keywords : anthocyanin, blood glucose, purple sweet potato, tempeh analog sausage. ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh penambahan tepung ubi jalar ungu pada pembuatan sosis analog tempe terhadap aktivitas antioksidan, total antosianin, kadar gula reduksi dan kemampuan antioksidannya untuk menurunkan kadar gula darah mencit diabetes. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) yang terdiri dari lima perlakuan yakni penambahan tepung ubi jalar ungu 0%, 10%, 15%, 20% dan 25% dengan 4 kali ulangan. Hasil pengamatan dianalisis menggunakan Analysis of Variance (ANOVA) pada α = 5% menggunakan software Co-Stat dan SPSS 21 for windows dengan uji lanjut menggunakan metode ortogonal polinomial (MOP). Hasil penelitian menunjukkan bahwa perlakuan penambahan tepung ubi jalar ungu memberikan pengaruh yang signifikan terhadap aktivitas antioksidan, total antosianin dan penurunan kadar gula darah mencit diabetes yang diberi makan sosis analog tempe, namun memberikan pengaruh yang tidak signifikan terhadap kadar gula reduksi sosis analog tempe. Penambahan 25% tepung ubi jalar ungu merupakan perlakuan terbaik dengan karakteristik aktivitas antioksidan 31,44%; total antosianin 8,22 mg/L; kadar gula reduksi 1,13% dan mampu menurunkan kadar gula darah mencit diabetes sebesar 387 mg/dL. Kata kunci : antosianin, gula darah, sosis analog tempe, ubi jalar ungu

scholarly journals Karakteristik berbagai jenis tepung ubi jalar termodifikasi dengan metode autoclaving retrogradation

2021 ◽  
Vol 26 (2) ◽  
pp. 83
Author(s):  
Sefanadia Putri ◽  
Usdeka Muliani
Keyword(s):  
Antioxidant Activity ◽  
Dietary Fiber ◽  
Sweet Potato ◽  
Resistant Starch ◽  
Starch Digestibility ◽  
Potato Flour ◽  
Nutritional Content ◽  
Carbohydrate Source ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

Sweet potato has great potency to be developed as an alternative carbohydrate source in the form of modified sweet potato flour. Autoclaving retrogradation is a physical modification method to improve the physicochemical characteristics of flour. The purpose of this study was to determine the effect of the autoclaving retrogradation method on the characteristics of various sweet potato flour: dietary fiber, resistant starch, starch digestibility, nutritional content, and antioxidant, and to determine the best modified sweet potato flour. The experimental design used a non-factorial completely randomized block design with four replications. The treatment consisted of 6 types of sweet potato, namely control (purple sweet potato without treatment), orange sweet potato, purple sweet potato, honey-sweet potato, red sweet potato, and purple white sweet potato). The results showed that there were significant differences in dietary fiber, levels of resistant starch, digestibility of starch, nutritional content, and antioxidant activity amongst various types of modified sweet potato flour. The best modified sweet potato flour was found in modified red sweet potato flour which contained 44.64% dietary fiber, 19.75% resistant starch, 13.50% starch digestibility, 66.32%  antioxidant activity, with comparable nutritional content.  

scholarly journals UJI ORGANOLEPTIK JALANGKOTE UBI JALAR UNGU ( Ipomoea batatas L) SEBAGAI UPAYA DIVERSIFIKASI PANGAN

2018 ◽  
Vol 3 (1) ◽  
pp. 9-15
Author(s):  
Darni Lamusu
Keyword(s):  
Sweet Potato ◽  
Wheat Flour ◽  
Ipomoea Batatas ◽  
Research Data ◽  
Potato Flour ◽  
Randomized Design ◽  
Sweet Potato Flour ◽  
Completely Randomized Design ◽  
Purple Sweet Potato ◽  
Potato Products

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

scholarly journals Pengaruh Perbandingan Tepung Ubi Jalar Ungu Dan Tepung Kedelai Terhadap Karakteristik Flakes Sebagai Pangan Fungsional

2021 ◽  
Vol 10 (2) ◽  
pp. 268
Author(s):  
Ratna Mei Rani ◽  
I Gusti Ayu Ekawati ◽  
Anak Agung Istri Sri Wiadnyani
Keyword(s):  
Antioxidant Activity ◽  
Sweet Potato ◽  
Ash Content ◽  
Potato Flour ◽  
Soybean Flour ◽  
Duncan Multiple Range Test ◽  
Randomized Design ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato ◽  
Range Test

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.

scholarly journals Hedonic And Quality Analysis Of Chiffon Cake With Purple Sweet Potato Flour Substitution

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Tuatul Mahfud ◽  
Bambang Jati Kusuma
Keyword(s):  
Sweet Potato ◽  
Wheat Flour ◽  
Consumer Preferences ◽  
Quality Analysis ◽  
Research Approach ◽  
Second Phase ◽  
Potato Flour ◽  
Trained Panel ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

The purpose of this study is (1) to determine differences in color chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour; (2) to determine differences in flavor of chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour; (3) to determine differences in texture of chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour; (4) to determine the level of consumer preferences to color of chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour; (5) to determine the level of consumer preferences on taste of chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour; (6) to determine the level of consumer preferences on the texture of chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% of wheat flour. In this research, there are two stages of research, the first phase of preliminary studies using a type of experimental research and the second phase of research using organoleptic research approach. The population in this study is the purple sweet potato in Balikpapan and the sample used is purple sweet potato with a weight of 5 kg. Panelists were selected is a trained panel (semi-trained panel), which amounted to 25 skilled panelists. These skilled panelists are the student of Food and Beverage department in State Polytechnic of Balikpapan. Distribution of questionnaires to hedonic test and quality are done in one repetition. Data Analysis used is statistical inferential and one way ANOVE analysis using the SPSS 20.0 For Windows to see the level of preference of panelists and the hedonic quality of chiffon cake with the substitution of purple sweet potato in 50%, 75%, and 100% of the flour that includes aspects of taste, color and texture. The results showed that (1) there is a difference of color in chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% from wheat flour; (2) there is a difference of taste in chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% from wheat flour; (3) there is a differences of texture in chiffon cake which is substituted with purple sweet potato flour in 50%, 75%, and 100% from wheat flour; (4) The panelists liked the color of chiffon cake with purple sweet potato flour substitution in 100% from wheat flour; (5) panelists liked the flavor of chiffon cake with purple sweet potato flour substitution in 100% from wheat flour; (6) panelists liked the texture of chiffon cake with purple sweet potato flour substitution in 50% from wheat flour.  

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