scholarly journals PENGARUH PENGOLAHAN PANAS TERHADAP KONSENTRASI ANTOSIANIN MONOMERIK UBI JALAR UNGU (Ipomoea batatas L) (Efect of Heat Processing on Monomeric Anthocyanin of Purple Sweet Potato (Ipomoea batatas L))

2015 ◽  
Vol 35 (02) ◽  
pp. 129 ◽  
Author(s):  
Ai Mahmudatussa'adah ◽  
Dedi Fardiaz ◽  
Nuri Andarwulan ◽  
Feri Kusnandar
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Degradation Kinetics ◽  
Heat Processing ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Randomized Design ◽  
Total Anthocyanin Content ◽  
Purple Sweet Potato ◽  
Potato Flakes

potato (PSP) is one source of antocyanin consisting of 98% acylated anthocyanin of the total anthocyanin content in tuber. Anthocyanin color varies from red, purple, blue to yellow. The color and amount of anthocyanin may change due to heating processings. The purpose of this research was to observe the changes in color and anthocyanin monomericcontent in PSP during heat processing of flakes. The other purpose of this reseach was to observe the order kinetics model of effect temperature and time baking on total anthocyanin monomeric of fresh PSP and rehydration PSP flakes. The experimental applied a completely randomized design with three replications. The color and amount of anthocyanin (L * = 23.38 ± 0.71, C = 9.84 ± 0.98, Hue = 12.25 ± 1.61). Total monomeric anthocyanin in fresh PSP was 1.45 ± 0.00 mg cyanidin equivalent (CyE)/g dry basis (db). In general, the color and the amount of PSP anthocyanin changed during the flakes processing. Steamed PSP for 7 minutes turned its color into a bright purple (L * = 25.88 ± 0.47, C = 24.64 ± 0.25, Hue = 348.83 ± 0.33) with the amount of monomeric anthocyanin increased to 3.76 ± 0.01 CyE mg/g db. Flakes PSP was very bright purple (L * = 36.12 ± 0.11, C = 9.97 ± 0.18, Hue = 359.29 ± 0.31) and the amount of monomericanthocyanin was slightly lower than that of steamed sweet potato (3.19 ± 0.12 mg CyE / g db). Total monomeric anthocyanin of fresh PSP and rehydration flakes PSP decrease during baking time.Keywords: Color, anthocyanin, purple sweet potato, flakes, degradation kinetics ABSTRAKAntosianin merupakan salah satu kelompok zat warna alami yang terdapat pada tanaman, seperti daun, bunga, umbi, buah atau sayur. Salah satu sumber antosianin pada tanaman adalah ubi jalar ungu (UJU) yang mengandung lebih dari 98% antosianin terasilasi dari konsentrasi antosianin umbi. Warna antosianin bervariasi mulai dari merah, ungu,biru, sampai kuning. Warna dan konsentrasi antosianin dapat berubah karena pengaruh panas. Penelitian ini bertujuan untuk mempelajari perubahan warna dan konsentrasi antosianin monomerik sebagai akibat proses pengolahan dalam pembuatan  UJU. Penelitian ini mengkaji juga mengenai model kinetika reaksi pengaruh suhu dan waktu panggang terhadap konsentrasi antosianin UJU segar dan  rehidrasi. Penelitian menggunakan rancangan acak lengkap dengan tiga kali ulangan. Warna dan konsentrasi antosianin dari UJU segar, setelah proses pengukusandan setelah menjadi  dibandingkan. UJU segar berwarna ungu kecoklatan (L =23,38±0,71, C=9,84±0,98, Hue=12,25±1,61). Konsentrasi antosianin monomerik pada UJU segar adalah 1,45±0,00 mg setara sianidin (CyE)/gbasis kering (bk). Secara umum, warna dan konsentrasi antosianin UJU berubah selama proses pembuatan . UJU yang dikukus selama 7 menit berubah menjadi ungu cerah (L* * =25,88±0,47, C=24,64±0,25, Hue=348,83±0,33) dengan konsentrasi antosianin monomerik meningkat menjadi 3,76±0,01 mg CyE/g bk.  UJU berwarna ungu sangat cerah (L =36,12±0,11, C=9,97±0,18, Hue=359,29±0,31) dan konsentrasi antosianin monomerik sedikit lebih rendah dibandingkan ubi jalar setelah dikusus (3,19±0,12 mg CyE/g bk). Jumlah antosianin monomerik UJU segar dan rehidrasi menurun seiring dengan waktu dan suhu pemanggangan.Kata kunci: Warna, antosianin, ubi jalar ungu, kecepatan penururunan

scholarly journals Optimization of the Drum Drying Parameters and Citric Acid Level to Produce Purple Sweet Potato (Ipomoea batatas L.) Powder Using Response Surface Methodology

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1378
Author(s):  
Sri Sampath Janaka Senevirathna ◽  
Nurul Shazini Ramli ◽  
Ezzat Mohamad Azman ◽  
Nurul Hanisah Juhari ◽  
Roselina Karim
Keyword(s):  
Response Surface Methodology ◽  
Citric Acid ◽  
Response Surface ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Antioxidant Properties ◽  
Processing Condition ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Purple Sweet Potato

Purple sweet potato (PSP) is a rich source of anthocyanins, but the anthocyanin content and color can be affected by the drying method and processing condition. Response surface methodology (RSM) with a Box–Behnken design (BBD) was used to investigate the effects of citric acid (CA) concentration, steam pressure (SP) and rotation speed (DS) on the physicochemical and functional properties of drum-dried purple sweet potato powder (PSPP). The anthocyanins of the PSPP were analyzed using mass spectrometry with electrospray ionization and twelve anthocyanins were identified. The results indicated that the moisture content (4.80 ± 0.17–9.97 ± 0.03%) and water activity (0.290 ± 0.004–0.47 ± 0.001) (p < 0.05) decreased with increasing drum temperature as well as with reduced drum rotating speed. CA had a significant (p < 0.05) effect on the color and total anthocyanin content (101.83 ± 2.20–124.09 ± 2.89 mg/100 g) of the PSPP. High SP and low DS negatively affected the antioxidant properties of the PSPP. DPPH value of the PSPP ranged from 20.41 ± 0.79 to 30.79 ± 1.00 μmol TE/g. The optimal parameters were achieved at 0.59% CA, 499.8 kPa SP and 3 rpm DS.

scholarly journals Characteristics of yellow sweet potato flakes (Ipomoea batatas L.) with the addition of moringa leaf flour (Moringa oleifera)

2021 ◽  
Vol 883 (1) ◽  
pp. 012026
Author(s):  
G H Augustyn ◽  
V N Lawalata ◽  
S G Sipahelut
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Moringa Oleifera ◽  
Ash Content ◽  
Added Value ◽  
Organoleptic Properties ◽  
Organoleptic Characteristics ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Potato Flakes

Abstract Flakes made from yellow sweet potato flour are one of the products with the addition of moringa leaf flour to increase the added value of the two commodities. The purpose of this study was to characterize the chemical and organoleptic properties of yellow sweet potato flakes with the addition of moringa leaf flour and determine the best treatment. This research was designed using a Completely Randomized Design with the addition of 0%, 2%, 4%, 6%, 8% moringa leaf flour, and repeated twice. The results showed that the addition of 4% moringa leaf flour was the best treatment because it was following SNI, with chemical characteristics of 3.43% moisture content, 1.88% ash content, 7.24% fat content, 2.05% protein content, 80.54% carbohydrate content, 4.81% fiber content and organoleptic characteristics of color (3.93 like), taste (3.76 like), aroma (3.40 like), crispness (3.90 like), and overall (3.90 like).

scholarly journals Evaluation of physicochemical properties of anthocyanin extracts and powders from purple sweet potato (Ipomoea batatas L.)

Food Research ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 2020-2029
Author(s):  
T. Ekaputra ◽  
R. Pramitasari
Keyword(s):  
Citric Acid ◽  
Sweet Potato ◽  
Water Extract ◽  
Egg White ◽  
Acid Water ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Water Solvent ◽  
Purple Sweet Potato

Purple sweet potato (Ipomoea batatas L.) is one of the food commodities that contain anthocyanin. This research aimed to evaluate the physicochemical properties of anthocyanin extracts and powders from purple sweet potato. Purple sweet potato anthocyanin was extracted using a water solvent with the addition of citric acid in different concentrations (0, 2, 4, and 6 g/100 mL). Ethanol solvent was used as a control. Foam mat drying was performed using variations of egg white composition (10 and 20 mg/100 mL). The result showed that extraction using a water solvent with 2 g/100 mL of citric acid was the most effective condition to obtain the highest total anthocyanin content (p < 0.05). However, its total phenolic, flavonoid, and antioxidant activity were lower compared to others. Total anthocyanin content of foam mat dried purple sweet potato powder made from the citric acid-water extract was significantly higher than the powder made from the citric acid-ethanol extract (p < 0.05). There was no effect in the total phenolic, flavonoid, viscosity, and yellowish-red color of the powder obtained from citric acid-water extract as the increase of egg white concentration. The use of 20 g/100 mL egg white in both powders produced from citric acid-water and ethanol extracts resulted in higher total anthocyanins and solubilities than powders using 10 g/100 mL egg white. The color of the powder obtained from citric acid-water extract had a lower brightness level and higher yellowish-red color intensity compared to the powder made from citric acidethanol extract.

scholarly journals THE EFFECT OF OFFERED FERMENTED RICE HULL IN RATION SUPPLEMENTED WITH PURPLE SWEET POTATO (Ipomoea batatas L.) LEAF ON LIPID PROFILE OF DUCK MEAT

2017 ◽  
Vol 4 (2) ◽  
pp. 184
Author(s):  
T.G. Oka Susila ◽  
T.G. Belawa Yadnya ◽  
Ni Gusti Ketut Roni
Keyword(s):  
Lipid Profile ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Crude Fiber ◽  
Feed Consumption ◽  
Rice Hull ◽  
Potato Leaf ◽  
Randomized Design ◽  
Fiber Consumption ◽  
Purple Sweet Potato

This experiment was carried out to study the effect of offered fermented rice hull in ration supplemented with purple sweet potato (Ipomoea batatas L.) leaf on lipid profile of duck meat. Seven treatment rations were used in a completely randomized design (CRD) consisted of control ration A (ration   without containing rice hull and purple sweet potato leaf), ration B (ration  containing 5% rice hull), ration C (ration containing 5% fermented rice hull and purple sweet potato leaf ), ration D (ration  containing 10%  rice hull), ration E   (ration containing 10% fermented rice hull and purple sweet potato leaf), ration F (ration containing 15%  rice hull),and ration G (ration containing 15% fermented rice hull and purple sweet potato leaf). Each treatment consisted of three replicates  and each replicate consisted of five ducks. Variable observed in this study  were feed consumption, protein, crude fiber and antioxidant  consumption and lipid profile consisted cholesterol total, HDL, LDL and TGA. The results showed that feed, protein, crude fiber and antioxidant consumption on treatment A were 6414.10., 1027.70., 520.82 and 59,51g/head.  Giving  treatment B, C, D, E, F and G  decrease feed consumption (P, < 0.05), but protein consumption was increase significantly (P <0.05) except for treatment B was not significant compared with treatment A. Giving  treatments C, E and G were decrease crude fiber consumption (P<0.05).  Crude fiber consumption in treatment B increase significantly (P < 0.05), but crude fiber consumption in treatment D and F were not significantly different (P>0.05) with control (A).  Antioxidant consumption for  treatments B, C, D, E, F and G were increase significantly (P<0,05) compared with  A. Lipid profile of duck meat consisted of cholesterol total, HDL, LDL and TGA in treatment A were  75,84., 26,81., 30,04 and 100,87 mg/100g. Offered treatment B, C, E, F and G significantly decrease cholesterol total (P<0.05), but treatment D was not significantly different (P>0.05) with  treatment A . While on HDL and TGA for all treatment were not significantly different (P>0.05) except TGA for treatment C was increase significantly (P<0.05), compared treatment A. Offered  treatment C, E and G  were significantly decease LDL of  duck meat, but   treatment B, D and F   were not significantly different (P<0.05) with treatment A. Its can be concluded that offered fermented rice hull in ration supplemented with purple sweet potato (Ipomoea batatas L.) leaf improve lipid profile of  duck meat.

scholarly journals How Pullulanase Affects Resistant Starch and Antioxidant Activity in Purple Sweet Potato Powder?

2019 ◽  
Vol 7 (11) ◽  
pp. 1795
Author(s):  
Gita Nevara Addelia ◽  
Shyan Yea Chay ◽  
Kharidah Muhammad ◽  
Hasanah Mohd Ghazali ◽  
Roselina Karim
Keyword(s):  
Sweet Potato ◽  
Resistant Starch ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Plant Powders ◽  
Potato Powder ◽  
Purple Sweet Potato

Purple sweet potato (PSP) serves as a potential source for dual functionalities of resistant starch (RS) and antioxidants. This study aims to evaluate the effects of pullulanase enzyme on these functionalities. Results showed that the incorporation of pullulanase into PSP powder could significantly increase the RS content from 3.06 g/100g to 7.11 g/100g. However, total anthocyanin content and DPPH radical scavenging activity reduced significantly, due to the interference from RS fragments on anthocyanins. Securing both functionalities (RS and antioxidant) within the same sample is seemingly impossible. A compromise between RS and antioxidant properties in coloured, starchy plant powders is recommended.

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 SEMOLINA DAN TEPUNG BERAS MERAH TERHADAP KARAKTERISTIK FETUCINI BASAH

2020 ◽  
Vol 9 (3) ◽  
pp. 341
Author(s):  
Ibrahim Kholilullah ◽  
Putu Timur Ina ◽  
Ni Wayan Wisaniyasa
Keyword(s):  
Antioxidant Activity ◽  
Brown Rice ◽  
Rice Flour ◽  
Ash Content ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Randomized Design ◽  
Total Anthocyanin Content ◽  
Brown Rice Flour ◽  
Comparative Treatment

This study was conducted to determine the effect of the comparison of semolina and brown rice flour on the characteristics of fresh fettucine and to find out the comparison of semolina and brown rice flour to produce fresh fettucine with the best characteristics. The experimental design used in this study was a completely randomized design (CRD) with various types of comparative treatment of semolina and brown rice flour consisting of 6 treatments namely 100% : 0%, 90% : 0%, 80% : 20%, 70% : 30%, 60% : 40%, and 50% : 50%. All treatments were repeated three times so that they were obtained 18 experimental units. The data obtained were analyzed by variance and if the treatment had significant effect then followed by Duncan test. The results showed that the comparison of semolina and brown rice flour had a significant effect on the ash content, total anthocyanin content, antioxidant activity, texture preferences (hedonic test), and color (scoring test). Ratio of 50% semolina and 50% brown rice flour had the best characteristics that were water content of 67.23%, ash content of 0.36%, total anthocyanin content of 1.05 mg/100g, antioxidant activity of 80.08%, purplish brown color and rather liked, rather chewy and ordinary texture, overall acceptance rather liked.

scholarly journals Investigation of stability of colorant powders extracting from Japanese purple sweet potato (Ipomoea batatas (L.) Poir)

2018 ◽  
Vol 20 (K7) ◽  
pp. 28-34
Author(s):  
Anh Nguyen Quynh Phan ◽  
Nhan Thi Hong Le
Keyword(s):  
Antioxidant Activity ◽  
Low Temperature ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Inhibitory Concentration ◽  
Anthocyanin Content ◽  
Acidic Media ◽  
Anthocyanin Concentration ◽  
Purple Sweet Potato ◽  
The Stability

The stability of colorant powders from Japanese purple sweet potato (Ipomoea batatas (L.) Poir) harvested in Vinh Long province was investigated. The colorants were formed from extracting solutions which were adjusted to pH of 6, 5, 4 and 3 before converted to powder matrix. They had red-purple color and contained anthocyanin concentration of about 32 mg/g. The IC50 inhibitory concentration of the neutral powder was 292.7 μg/mL, whereas the IC50 of pH3 powder was 484 μg/mL, which antioxidant activity decreased by increasing of acidic media clearly. Stability of appearance colors, anthocyanin content, polyanthocyanin index and antioxidant capacity were investigated and they depended on storing conditions (temperature and radiation) and pH media. To avoid denaturation of anthocyanin content, the pigment should be stored in the dark and at low temperature (10 °C). The acidic media could preserve the colorant powder by protecting anthocyanins, but it reduced the biological property of the pigment.

scholarly journals KAJIAN PEMANFAATAN SEKAM PADI DIFERMENTASI Aspergillus niger DALAM RANSUM DISUPLEMENTASI TEPUNG DAUN UBI JALAR UNGU (Ipomoea batatas, L.) TERHADAP PENAMPILAN ITIK BALI UMUR 24 -36 MINGGU

2018 ◽  
Vol 21 (2) ◽  
pp. 45
Author(s):  
SUSILA T. G. O. ◽  
T. G. B. YADNYA ◽  
A. A. A. S. TRISNADEWI
Keyword(s):  
Sweet Potato ◽  
Egg Production ◽  
Ipomoea Batatas ◽  
Feed Consumption ◽  
Rice Hull ◽  
Potato Leaf ◽  
Leaf Meal ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Purple Sweet Potato

The experiment was carried out to study the effect on fermented rice hull in diets supplemented with purplesweet potato (Ipomoea batatas L.) leaves meal on performance of bali ducks. A completely randomized design withfive treatments such as diet without rice hull (A), diet contaning 10% rice hull (B), diet containing 10% fermentedrice hull (C), ration contaning 9% rice hull and 1% purple sweet potato leaf meal (D), diet containing 9% fermentedrice hull and 1% purple sweet potato leaf meal (E). Each treatment in three replications consists of 5 female ducks.The variables observed were feed consumption, antioxidant capacity, total egg weight and FCR, and total eggs, eggproduction per day, and means of eggs weight. It showed that diet feed consumption of ducks fed E treatment found3.32% lower (P<0,05), total eggs 47,56% higher (P<0,05) compared to A. In addition, E treatment can increasetotal amount of eggs, egg production per day, and 29,16%, 29,15% dan 12,12% means of eggs (P<0,05) compared toA treatment. It can be concluded that ducks fed diets containing fermented rice hull and purple sweet potato leafmeal supplemented can improve efficiency of diets and production of eggs.

Sign in / Sign up

Export Citation Format

Share Document