scholarly journals Formulation Sunscreen Emulgel of Sweet Potatoes Leaves Extract (Ipomoea batatas (L.)) Antin-3 Variety

2020 ◽  
Vol 5 (2) ◽  
pp. 49-54
Author(s):  
Damaranie Dipahayu
Keyword(s):  
Phase Separation ◽  
Ipomoea Batatas ◽  
Ph Value ◽  
Skin Aging ◽  
Uv Exposure ◽  
Sweet Potatoes ◽  
Brown Colour ◽  
White Colour ◽  
Light Brown Colour

Ultraviolet radiation intensively causes oxidation and premature skin aging. UV B radiation causes sunburn and pigmentation. Sunscreen is used to protect the skin due to excessive sun UV exposure. The purpose of this study was to determine the physical characteristics and SPF value of emulgel containing purple sweet potatoes leaves extract (Ipomoea batatas (L.)) Antin-3 variety. Determination of the SPF value using the UV-VIS spectrophotometer method. Both of Antin-3 emulgel and base emulgel were not show phase separation after mechanically tested. Their not only had a homogeneous and soft consistency but also fresh on the skin. Antin-3 emulgel had a light brown colour and leaves extract scent while base emulgel had a white colour and base scent. Spread capacity and pH value of Antin-3 emulgel and base emulgel in a row were 3.6 cm; 6.28 and 3.2 cm; 6.41. SPF value of Antin-3 emulgel was 6.50 and base emulgel was 1.17. Antin-3 emulgel have extra potency to protect against UV B radiation.

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.

Determination of Thiabendazole Residues in White and Sweet Potatoes by Liquid Chromatography with Fluorescence Detection

1995 ◽  
Vol 78 (6) ◽  
pp. 1455-1458 ◽  
Author(s):  
Rene V Arenas ◽  
Hafizur Rahman ◽  
Nelson A Johnson
Keyword(s):  
Cation Exchange ◽  
Fluorescence Detection ◽  
Ipomoea Batatas ◽  
Animal Feed ◽  
Feed Additive ◽  
Extraction Column ◽  
Sweet Potatoes ◽  
White Potato ◽  
Potato Waste

Abstract A liquid chromatographic (LC) method was developed for determination of thiabendazole (TBZ) residues in or on whole, unwashed white potatoes (Solarium tuberosum) and sweet potatoes (Ipomoea batatas). TBZ is extracted from the potato homogenate with ethyl acetate and the extract purified and concentrated on a cation-exchange, solidphase extraction column. The extract is analyzed for TBZ residues by column LC with a cation-exchange column and fluorescence detection. Recoveries of TBZ from whole white potatoes fortified with TBZ at 0.05–20 ppm and from whole sweet potatoes fortified with TBZ at 0.005–0.1 ppm averaged 100 and 94%, respectively. The method is also applicable for quantitation of TBZ residues in white potato waste (dried peel) used as an animal feed additive. The present method for monitoring TBZ residues in white and sweet potatoes and white potato waste (dried peel) is simple, rapid, and sensitive.

scholarly journals Interference of Weeds in Sweet Potato Genotype Growth (Ipomoea batatas (L.) Lam.)

2018 ◽  
pp. 1-11
Author(s):  
J. T. Cavalcante ◽  
P. V. Ferreira ◽  
J. L. X. L. Cunha ◽  
L. L. M. Nobre ◽  
M. T. da Silva ◽  
...  
Keyword(s):  
Leaf Area ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Dry Mass ◽  
Sweet Potatoes ◽  
Evaluation Stage ◽  
Potato Genotype ◽  
Forced Air ◽  
Air Circulation

The experiment was carried out in the Experimental Area of ​​the Plant Genetic Improvement Sector of the Agricultural Sciences Center of the Federal University of Alagoas (SMGP-CECA-UFAL), in the year 2013, where periods of control and weed coexistence of sweet potatoes were evaluated. The experimental design was carried out in randomized blocks in the 3 x 14 factorial scheme with three replications, with three sweet potato genotypes in 14 periods of interference, and distributed in seven control periods (0, 10, 20, 30, 40, 50 and 60 days after planting - DAP), from which the weeds were controlled, and seven coexistence periods, from which the weeds coexisted with the crop. The evaluations consisted of sweet potato genotype shoot samplings at 30, 60, 90, and 120 days after planting (DAP), using one working area plant per plot in each evaluation stage. In the determination of the leaf area, a mechanical integrator was used, and to obtain the shoot dry mass, the material was taken to a forced air circulation oven at 65 ºC for 72 h, with subsequent weighing. According to the results, it can be observed that, in the coexisting treatments, there was a significant reduction in the shoot growth rates, in comparison to the treatments in which the weeds were controlled, especially the reduction of the leaf area at 120 DAP, where clone 6 and Sergipana showed a reduction of 89.0% and 88.0%, respectively. As for Clone 14, this reduction occurred at 90 DAP, at about 52.0%, which was less expressive, whereas in relation to the shoot dry mass, clones 6, 14, and the Sergipana variety showed a reduction at 120 DAP of 86%, 51%, and 46%, respectively.

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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