Starch Granule Size and the Domestication of Manioc (Manihot Esculenta) and Sweet Potato (Ipomoea Batatas)1

2002 ◽  
Vol 56 (4) ◽  
pp. 335-349 ◽  
Author(s):  
Linda Perry
Keyword(s):  
Sweet Potato ◽  
Manihot Esculenta ◽  
Ipomoea Batatas ◽  
Starch Granule ◽  
Granule Size

scholarly journals Screening of Phytochemical, Antioxidant and Fiber Levels of Sweet Potato (Ipomoea batatas), Cassava (Manihot esculenta), and Binahong (Anredera cordifolia (Ten) Steenis) Leaves Extract

2020 ◽  
Vol 11 (3) ◽  
pp. 4779-4783
Author(s):  
Nurdin Rahman ◽  
Fendi Pradana ◽  
St. Ika Fitrasyah ◽  
Diah Ayu Hartini ◽  
Ariani ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Sweet Potato ◽  
Experimental Research ◽  
Manihot Esculenta ◽  
Ipomoea Batatas ◽  
Sweet Potatoes ◽  
Cassava Leaves ◽  
Average Fibre ◽  
Sweet Potato Leaves

Generally, vegetables contain various vitamins, minerals, and pigments that have antioxidant activity and can neutralise free radicals before causing damage to body cells. The research aimed to analyse phytochemical, antioxidant contents, and fibre levels of leaves extract of sweet potato, cassava, and binahong. The study was experimental research utilising leaves of sweet potato, cassava, and binahong. The leaves were removed and analysed for contents of phytochemicals, antioxidant and fibre levels. Flavonoid compounds were obtained positively on the 5-blades leaves extract of Cassavas. Polyphenol and tannin were undoubtedly discovered on the single, and 3-blades leaves extract of Sweet Potatoes and also on the five, and 7-blades leaves extract of Cassavas. Interestingly, alkaloids and steroids were identified on leaves extract of binahong, the single and 3-blades leaves extract of Sweet Potatoes and also on the five and 7-blades leaves extract of Cassavas. Consequently, 7-blades leaves extract of Cassavas contains the highest level of antioxidants (IC50), which was 44.46% (90 ppm). Nonetheless, 3-blades leaves extract of Sweet Potatoes contains the lowest. The leaves extract of binahong had an average fibre content of 28.45%, followed by 5-blades cassava leaves at 26.59%, and cassava leaves at 25%. The extract of sweet potato leaves was able to be developed as a source of antioxidants. Moreover, it contained high fibres.

scholarly journals Physical, chemical and sensory properties of cassava (Manihot esculenta) - sweet potato (Ipomoea batatas) gari

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Olayinka Ramota Karim ◽  
Balogun Mutiat Adebanke ◽  
Olaide Akinwunmi Akintayo ◽  
Wasiu Awoyale
Keyword(s):  
Sweet Potato ◽  
Manihot Esculenta ◽  
Ipomoea Batatas ◽  
Sensory Properties ◽  
Physical Chemical

scholarly journals Heavy Metals Content of Common Tubers from Selected Farm Locations in Enugu North District, South East, Nigeria

2020 ◽  
pp. 1-6
Author(s):  
Fredrick C. Asogwa ◽  
Ebo Paul ◽  
Gerald W. Ugodi ◽  
Chioma J. Asogwa
Keyword(s):  
Heavy Metals ◽  
Sweet Potato ◽  
Manihot Esculenta ◽  
Human Exposure ◽  
Ipomoea Batatas ◽  
Standard Procedure ◽  
World Health ◽  
The World ◽  
Health Organization ◽  
Cu And Zn

The concentration of heavy metals (Cd, Pb, Ni, As, Cr, Mn, Cu, and Zn) in sweet potato (Ipomoea batatas), yam (Dioscorea ssp), and cassava (Manihot esculenta) in four farm locations in some local government areas of Enugu North District was determined. Samples were prepared following standard procedure and digested with a 5:1:1 mixture of trioxonitrate (V) acid, tetraoxosulphate (VI) acid, and perchloric acid as previously reported. Metal concentration was determined using Atomic Absorption Spectrophotometer (Perkin Elmer 1100B model). The range of heavy metals concentration recorded for sweet potato in the four farm locations were 60.26±2.30-312.66±31.24 mg/kg, 20.06±1.27-40.55±4.08 mg/kg, 12.60±2.00-32.06±3.20 mg/kg, 8.20±3.00-15.00±1.07 mg/kg, 0.05±0.07-0.80±1.27 mg/kg, 0.07±0.42-0.18±0.42 mg/kg, 0.01±0.20-0.09±0.03 mg/kg and 0.02±0.07-0.03±0.08 mg/kg respectively for Mn, Ni, Cu, Zn, Cr, Pb, As and Cd while the range in yam was 18.46±2.05-380.20±10.97 mg/kg, 44.20±4.99-66.30±3.87 mg/kg, 17.80±2.18-56.08±6.73 mg/kg, 12.00±2.00-42.30±0.06 mg/kg, 0.01±0.32-0.42±0.27 mg/kg, 0.02±0.07-0.20±0.12 mg/kg, 0.04±2.03-0.10±0.00 mg/kg and 0.01±0.07-0.08±0.47 mg/kg for Mn, Cu, Zn, Ni, Cr, Pb, As and Cd respectively. In cassava, the concentration range was 74.20±10.97-312.20±31.20 mg/kg, 14.20±1.29-38.22±6.07 mg/kg, 10.88±3.03-32.00±0.70 mg/kg, 3.20±0.20-11.20±1.09 mg/kg, 0.01±0.20-0.18±1.27 mg/kg, 0.02±0.03-0.12±0.07 mg/kg, 0.01±0.03-0.10±0.07 mg/kg and 0.03±0.00-0.05±0.42 mg/kg for Mn, Ni, Zn,Cu, Cr, Pb, Cd and As respectively. While Cd was not detected in farm location B and D in all the tuber samples, arsenic was detected in all the samples except in cassava cultivated in farm location B. All the heavy metals analyzed were each below the World Health Organization (WHO) permissible concentration except chromium which was slightly higher than the recommended limit of 0.05 mg/kg. Apart from 0.80±1.27 mg/kg Cr recorded for sweet potato cultivated in location C, the concentration of chromium in all the tubers were below the China’s State Environmental Protection Administration (SEPA) permissible limit of 0.5 mg/kg. Hence, risk assessment of Cr intake was recommended to ascertain the level of human exposure to Cr through the consumption of these tubers in the study area

Batatins VII-X, glycolipid ester-type dimers from sweet potato (Ipomoea batatas)

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
D Rosas-Ramírez ◽  
R Pereda-Miranda
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas

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

Analisis Nutrisi Umbi Ubi Jalar (Ipomoea batatas (L.) Lam.) untuk Konsumsi Bayo dan Anak-anak Suku Dani di Distrik Kurulu Kabupaten Jayawijaya

Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Andrew B. Pattikawa ◽  
Antonius Suparno ◽  
Saraswati Prabawardani
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Nutritional Value ◽  
Animal Feed ◽  
Ash Content ◽  
Infants And Children ◽  
Chemical Analyses ◽  
Food Crop ◽  
Sweet Potatoes ◽  
Development Center

<em>Sweet potato is an important staple food crop especially for the local people of Central Highlands Jayawijaya. There are many accessions that have always been maintained its existence to enrich their various uses. Traditionally, sweet potato accessions were grouped based on the utilization, such as for animal feed, cultural ceremonies, consumption for adults, as well as for infants and children. This study was aimed to analyze the nutritional value of sweet potatoes consumed by infants and children of the Dani tribe. Chemical analyses were conducted at the Laboratory of Post-Harvest Research and Development Center, Cimanggu, Bogor. The results showed that each of 4 (four) sweet potato accessions which were consumed by infants and children had good nutrient levels. Accession Sabe showed the highest water content (72.56%), vitamin C (72.71 mg/100 g), Fe (11.85 mg/100 g), and K levels (130.41 mg / 100 grams). The highest levels of protein (1.44%), fat (1.00%), energy (154.43 kkal/100 gram), carbohydrate (35.47%), starch (30.26%), reducing sugar (3.44%), riboflavin (0.18 mg/100 g), and vitamin A (574.40 grams IU/100 were produced by accession Manis. On the other hand, accession Saborok produced the highest value for ash content (1.32%), vitamin E (28.30 mg/100 g), and ?-carotene (64.69 ppm). The highest level of crude fiber (1.81 %) and thiamin (0.36 mg/100 g) was produced by accession Yuaiken.</em>

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