Isolation and characterization of 4-ipomeanol, a lung-toxic furanoterpenoid produced by sweet potatoes (Ipomoea batatas)

1972 ◽  
Vol 20 (2) ◽  
pp. 428-430 ◽  
Author(s):  
Michael R. Boyd ◽  
Benjamin J. Wilson
Keyword(s):  
Ipomoea Batatas ◽  
Sweet Potatoes ◽  
Isolation And Characterization

Production and Characterization of Exopolysaccharides from Loss Cooked Sweet Potatoes (Ipomoea batatas) by Lactobacillus Plantarum

2021 ◽  
Vol 2 (7) ◽  
pp. 01-11
Author(s):  
Robert Germain Beka ◽  
Emmanuel Akdowa Panyoo ◽  
Germaine Yadang ◽  
Pamela Homsi ◽  
Laurette Blandine Mezajoug Kenfack ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Chemical Characterization ◽  
Sweet Potatoes ◽  
Fermentation Time ◽  
Total Sugars ◽  
Titrable Acidity ◽  
Lactic Acid Content

The aim of the work was to produce and characterize the exopolysaccharides from loss cooked sweet potato (Ipomoea batatas) using fermentation with Lactobacillus. The cooked sweet potato was fermented according to the factorial design with the following factors: the time (21.51h-38.48h) and the amount of Lactobacillus (1.58*106-5*106UFC). Responses were represented by production yield, pH, and titrable acidity. Characterization of the exopolysaccharides was then done by determination of total sugars, solubility index and viscosity. The results show that the pH of unfermented cooked potatoes was between 6.23 to 6.63. The pH of fermented potatoes varies from 3.96 to 4.06. The lactic acid content was found from 7.75 to 9.9% for the fermented samples. The production yields are 1.90% for the samples fermented for 21.5 hours with 3.5*106UFC of bacteria and 5.62% for those fermented for 30 hours with the same volume of inoculum. The average viscosity of the products was 4mPas regardless of the fermentation time. Chemical characterization indicates glucose contents of 68.21 and 94.01% in fermented potato for 24h and 21h respectively. The solubility index gives values of 70.3 ± 0.16 and 88.11 ± 0.23 for fermentation times of 21h and 24h respectively. Results of this work indicated that cooked sweet potatoes ferment for 21h was a promising substrate for production of exopolysaccharides.

scholarly journals Proximate composition of Malaysian local sweet potatoes

Food Research ◽  
2021 ◽  
Vol 5 (S1) ◽  
pp. 73-79
Author(s):  
N.A. Zulkifli ◽  
M.Z.M. Nor ◽  
F.N. Omar ◽  
A. Sulaiman ◽  
M.N. Mokhtar
Keyword(s):  
Sweet Potato ◽  
Proximate Composition ◽  
Crude Protein ◽  
Ipomoea Batatas ◽  
Animal Feed ◽  
Sweet Potatoes ◽  
Crude Fibre ◽  
By Products ◽  
Different Parts

Sweet potato (Ipomoea batatas (L.) Lam) is one of the main crops worldwide. However, systematic properties characterization of this crop is still required, particularly on the Malaysian local sweet potatoes. Hence, this study aims to determine the proximate composition and the energy value of five common varieties of local sweet potato (Anggun 1, Anggun 2, Anggun 3, White, and VitAto) in Malaysia. For each variety, three different parts of the tuberous root which were the skin, the cortex, and the mixture of cambium and parenchyma were characterized. The findings indicated that VitAto exhibited the highest starch (16.95% – 17.17%) and crude protein (0.86% – 1.15%) contents in all parts as compared to other varieties, hence reflecting its potentials to be further processed for a mass starch production. Among all the parts, the skin contained the highest crude protein, crude fat, ash and crude fibre, which can be further utilized to produce by-products such as animal feed. The findings in this study serve as a baseline for the future starch and byproducts production from local sweet potatoes.

scholarly journals Pengaruh Penambahan Carboxymethyl Cellulose Terhadap Karakteristik Bioplastik Dari Pati Ubi Nagara (Ipomoea batatas L.)

2019 ◽  
Vol 7 (1) ◽  
pp. 77-85
Author(s):  
Dahlena Ariyani ◽  
Erni Puryati Ningsih ◽  
Sunardi Sunardi
Keyword(s):  
Tensile Strength ◽  
Carboxymethyl Cellulose ◽  
Ipomoea Batatas ◽  
Water Resistance ◽  
Transmission Rate ◽  
Synthesis And Characterization ◽  
Water Vapor Transmission Rate ◽  
Sweet Potatoes ◽  
Water Vapor Transmission

Synthesis and characterization of bioplastics from Nagara sweet potatoes (Ipomoea batatas L) starch with carboxymethyl cellulose (CMC) as a filler has been conducted. The purpose of this study was to evaluate the effects of CMC addition on the characteristic of bioplastics from Nagara sweet potato (Ipomoea batatas L) starch. Bioplastic synthesis was carried out by the melt intercalation method with variations in the amount of CMC 0-30% (w/w). Bioplastics were analyzed using FTIR spectrophotometer, thickness, solubility, water resistance, water vapor transmission rate, tensile strength and elongation. The values of the tensile strength of the bioplastic produced increases with increasing of CMC. The results also showed that the optimum CMC concentration in bioplastics production is 9% (w/w) with a tensile strength value 0.5281 N/mm2.

Isolation and characterization of starch from light yellow, orange, and purple sweet potatoes

2020 ◽  
Vol 160 ◽  
pp. 660-668 ◽  
Author(s):  
Honglu Wang ◽  
Qinghua Yang ◽  
Uzizerimana Ferdinand ◽  
Xiangwei Gong ◽  
Yang Qu ◽  
...  
Keyword(s):  
Sweet Potatoes ◽  
Light Yellow ◽  
Isolation And Characterization ◽  
Yellow Orange

Studies on Sweet Potatoes. Part II: Isolation and Characterization of Starch

1993 ◽  
Vol 45 (1) ◽  
pp. 8-12 ◽  
Author(s):  
B. Madhusudhan ◽  
N. S. Susheelamma ◽  
R. N. Tharanathan
Keyword(s):  
Sweet Potatoes ◽  
Isolation And Characterization

scholarly journals Pengaruh Penambahan Carboxymethyl Cellulose Terhadap Karakteristik Bioplastik Dari Pati Ubi Nagara (Ipomoea batatas L.)

2019 ◽  
Vol 7 (1) ◽  
pp. 77-85
Author(s):  
Erni Puryati Ningsih ◽  
Dahlena Ariyani ◽  
Sunardi Sunardi
Keyword(s):  
Tensile Strength ◽  
Carboxymethyl Cellulose ◽  
Ipomoea Batatas ◽  
Water Resistance ◽  
Transmission Rate ◽  
Synthesis And Characterization ◽  
Water Vapor Transmission Rate ◽  
Sweet Potatoes ◽  
Water Vapor Transmission

Synthesis and characterization of bioplastics from Nagara sweet potatoes (Ipomoea batatas L) starch with carboxymethyl cellulose (CMC) as a filler has been conducted. The purpose of this study was to evaluate the effects of CMC addition on the characteristic of bioplastics from Nagara sweet potato (Ipomoea batatas L) starch. Bioplastic synthesis was carried out by the melt intercalation method with variations in the amount of CMC 0-30% (w/w). Bioplastics were analyzed using FTIR spectrophotometer, thickness, solubility, water resistance, water vapor transmission rate, tensile strength and elongation. The values of the tensile strength of the bioplastic produced increases with increasing of CMC. The results also showed that the optimum CMC concentration in bioplastics production is 9% (w/w) with a tensile strength value 0.5281 N/mm2.

Isolation and Characterization of IbNPR1 Gene from Sweet Potato (Ipomoea batatas)

2009 ◽  
Vol 35 (12) ◽  
pp. 2218-2224 ◽  
Author(s):  
Guan-Shui CHEN ◽  
Yi-Fei ZHOU ◽  
Sheng LIN ◽  
Zheng ZHANG ◽  
Da-Ren PAN
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Isolation And Characterization
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