Effects of treatment methods on the formation of resistant starch in purple sweet potato

2021 ◽  
pp. 130580
Author(s):  
Hongrui Sun ◽  
Jieying Fan ◽  
Zhigang Tian ◽  
Linyuan Ma ◽  
Yue Meng ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Resistant Starch ◽  
Treatment Methods ◽  
Purple Sweet Potato

scholarly journals Physical properties, resistant starch content and antioxidant profile of purple sweet potato powder after 12 months of storage

2019 ◽  
Vol 22 (1) ◽  
pp. 974-984 ◽  
Author(s):  
Chay Shyan Yea ◽  
Gita Addelia Nevara ◽  
Kharidah Muhammad ◽  
Hasanah Mohd Ghazali ◽  
Roselina Karim
Keyword(s):  
Physical Properties ◽  
Sweet Potato ◽  
Resistant Starch ◽  
Starch Content ◽  
Antioxidant Profile ◽  
Potato Powder ◽  
Purple Sweet Potato

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 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.  

Effects of moist-heat treatments on color improvement, physicochemical, antioxidant, and resistant starch properties of drum-dried purple sweet potato powder

2018 ◽  
Vol 42 (1) ◽  
pp. e12951
Author(s):  
Gita Addelia Nevara ◽  
Chay Shyan Yea ◽  
Roselina Karim ◽  
Kharidah Muhammad ◽  
Hasanah Mohd Ghazali
Keyword(s):  
Sweet Potato ◽  
Resistant Starch ◽  
Heat Treatments ◽  
Moist Heat ◽  
Starch Properties ◽  
Potato Powder ◽  
Purple Sweet Potato

scholarly journals Characterization and Prebiotic Effect of the Resistant Starch from Purple Sweet Potato

Molecules ◽  
2016 ◽  
Vol 21 (7) ◽  
pp. 932 ◽  
Author(s):  
Yafeng Zheng ◽  
Qi Wang ◽  
Baoyu Li ◽  
Liangmei Lin ◽  
Rosa Tundis ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Resistant Starch ◽  
Purple Sweet Potato

Pengaruh Profilaksis Ekstrak Ubi Jalar Ungu (Ipomoea batatas L.) terhadap Kadar Malondialdehida Hepar Tikus Putih (Rattus norvegicus) Jantan Galur Wistar yang Diinduksi Karagenan

2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Wistar Rats ◽  
Group Method ◽  
Control Group ◽  
Intraplantar Injection ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Potato Extract ◽  
Purple Sweet Potato

<p>Liver is an organ with complex metabolism. When the liver is inflamed, cellular immunity will defend against inflammatory agents by stimulating immune cells to produce reactive oxygen species (ROS). Excessive ROS accumulation cause oxydative stress with increased  liver malondialdehyde (MDA) level. Some researches showed that purple sweet potato contain flavonoids (anthocyanins) that functioned as antioxydants. This study aimed to show the prophylactic effect of purple sweet potato extract to the liver MDA level of male Wistar rats induced by carrageenan.</p><p>This study used post-only control group method using 18 male Wistar rats divided into 3 groups: group of rats without treatment, group of rats induced by 0,1 ml of 1% carrageenan by intraplantar injection on day-8, and group of rats given with 872 mg/kgBW of purple sweet potato extract for 7 days and induced by 0,1 ml of 1% carrageenan. In the end of the study, the liver MDA levels were measured by Thio-Barbituric Acid method on each groups.</p><p>The results of One-Way ANOVA test showed there was no significant difference (p = 0,290) between group of rats without treatment (<em>x̅</em>= 207,50) and group of rats induced by carrageenan (<em>x̅</em>=233,17). Then, there is no significant difference (p = 0.978) between group of rats induced by carrageenan and group of rats given with prophylactic purple sweet potato extract and induced by carrageenan (<em>x̅</em>= 232,50).</p><p>The conclusion of this study is giving intraplantar injection of carrageenan can increase liver MDA level insignificantly and giving prophylactic purple sweet potato extract has an effect to decrease the liver MDA level of rats induced by carragenan insignificantly because it contains anthocyanins as antioxidants.</p><p> </p><strong>Keywords: </strong>Liver, <em>Ipomoea batatas</em> L., Malondialdehyde, Anthocyanins

Optimisation of the Preparation of Sweet Potato Resistant Starch by Dry Heating with Pectin

2020 ◽  
Vol 26 (1) ◽  
pp. 39-46
Author(s):  
Xiaoyuan Liu ◽  
Mengxue Chen ◽  
Fei Li ◽  
Jie Zeng ◽  
Guangleil Li
Keyword(s):  
Sweet Potato ◽  
Resistant Starch ◽  
Dry Heating

PENGARUH PEMBERIAN FRAKSI ETILASETAT KULIT UBI JALAR UNGU TERHADAP KADAR MALONDIALDEHID (MDA) SERUM MENCIT PUTIH JANTAN HIPERGLIKEMIA

2018 ◽  
Vol 8 (2) ◽  
pp. 144
Author(s):  
Ria Afrianti
Keyword(s):  
Blood Glucose ◽  
Statistical Analysis ◽  
Sweet Potato ◽  
Ethyl Acetate Fraction ◽  
Serum Levels ◽  
Negative Control ◽  
Control Group ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Purple Sweet Potato

This study aims to determine the effect giving of ethylacetate fraction of leather  purple sweet potato (Ipomoea batatas (L.) Lam, on levels of malondialdehyde (MDA) serum in mice hyperglicemia were induced with streptozocin dose of 50 mg/kgBW. Mice were divided into 5 groups, each group consisting of 3 tails, group I is a negative control, group II is a positive control, group III,IV and V is given ethylacetate fraction a dose of 100 mg/kgBW, 300 mg/kgBW, and 600 mg/kgBW. Ethyl Acetate Fraction leather purple sweet potato given orally for 15 days after the animal is declared hyperglicemia and measurement of blood glucose levels on 5, 10, and 15 day after giving test preparation in animal experiments. On the 16 day throughout the mice were taken serum levels measured malondialdehid. The statistical analysis results showed that giving of ethyl acetate fraction of leather purple sweet potato at a dose of 100 mg/kgBW, 300 mg/kgBW, and 600 mg/kgBW can lower blood glucose levels in mice hyperglycemia significantly (p<0.05). Malondialdehid levels on average in each group is 1.35 nmol/ml, 3.00 nmol/ml, 2.72 nmol/ml, 2.20 nmol/ml and 2.61 nmol/ml, the results of statistical analysis showed a decrease in melondialdehid serum levels were significantly (p<0.05), where a dose of 300 mg/kgBW is an effective dose for lowering blood glucose levels followed by decreased levels of malondialdehid which give effect approaching negative control.

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