Effect of traditional processing methods on the β-carotene, ascorbic acid and trypsin inhibitor content of orange-fleshed sweet potato for production of amala in Nigeria

2015 ◽  
Vol 96 (7) ◽  
pp. 2472-2477 ◽  
Author(s):  
Abbas Bazata Yusuf ◽  
Richard Fuchs ◽  
Linda Nicolaides
Keyword(s):  
Ascorbic Acid ◽  
Sweet Potato ◽  
Trypsin Inhibitor ◽  
Processing Methods ◽  
Traditional Processing ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene

scholarly journals Changes in physical properties of sweet potato due to effects of thermal pre-treatments for puree production

DYNA ◽  
2018 ◽  
Vol 85 (207) ◽  
pp. 135-142
Author(s):  
Sonia Gallego-Castillo ◽  
Alfredo Adolfo Ayala-Aponte
Keyword(s):  
Physical Properties ◽  
Sweet Potato ◽  
Sweet Potatoes ◽  
Pre Treatment ◽  
Physical Changes ◽  
Orange Fleshed Sweet Potato ◽  
Lower Loss ◽  
Cylindrical Samples ◽  
Intense Color ◽  
Β Carotene

In response to increasing consumer demand for high-quality, easy-to-prepare foods, it is necessary to develop innovative ways to use roots and tubers, such as sweet potatoes, in processed foods. Thus, two thermal processes were evaluated, freezing-cooking (F+C) and blanching-freezing-cooking (B+F+C) on the physical properties of the orange-fleshed sweet potato (OFSP) cultivar, which has a high content of β-carotene, in terms of drip loss (Δm), volume variation (ΔV), color, and texture. Cylindrical samples of OFSP were used. Blanched and unblanched samples were stored by freezing, at -18 °C for 2 months, and subsequently cooked at 95 °C. The blanching process was carried out at 95 °C for 2 min. The results showed that, when blanching was used as a pre-treatment for freezing-cooking, a product with fewer physical changes, with a lighter and more intense color (chroma), and with a lower loss of elasticity (Ed) and firmness (F) was obtained.

In Vitro Bioaccessibility of β-Carotene from Heat-Processed Orange-Fleshed Sweet Potato

2009 ◽  
Vol 57 (20) ◽  
pp. 9693-9698 ◽  
Author(s):  
Anton Bengtsson ◽  
Marie Larsson Alminger ◽  
Ulf Svanberg
Keyword(s):  
Sweet Potato ◽  
In Vitro Bioaccessibility ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene

Effects of high hydrostatic pressure and soaking solution on proximate composition, polyphenols, anthocyanins, β-carotene, and antioxidant activity of white, orange, and purple fleshed sweet potato flour

2019 ◽  
Vol 26 (5) ◽  
pp. 388-402
Author(s):  
Muhammad Azeem ◽  
Tai-Hua Mu ◽  
Miao Zhang
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Hydrostatic Pressure ◽  
Sweet Potato ◽  
High Hydrostatic Pressure ◽  
Anthocyanin Content ◽  
Potato Flour ◽  
Total Anthocyanin ◽  
Sweet Potato Flour ◽  
Β Carotene

Effects of high hydrostatic pressure (100, 200, and 400 MPa) and soaking solution (citric acid, calcium chloride, ascorbic acid, and distilled water) on proximate composition, polyphenols, anthocyanins, β-carotene, and antioxidant activity of white, orange, and purple fleshed sweet potato flour were investigated. Total polyphenol content was increased in sweet potato flour of Jishu 98 (white) at 200 MPa with ascorbic acid and Pushu 32 (orange) at 0.1 MPa with ascorbic acid treatment (0.51 and 0.83 mg gallic acid equivalent/g dry weight, respectively), but was decreased in Xuzishu No. 3 (purple) in both high hydrostatic pressure and soaking solution treatments. Total anthocyanin content was declined in all treated sweet potato flour. Nevertheless, high hydrostatic pressure with citric acid, calcium chloride, and distilled water significantly increased the β-carotene content in Pushu 32. Correlation analysis between total polyphenol content, total anthocyanin content, and antioxidant activity suggested that polyphenols are the most pivotal antioxidant in sweet potato flour. High hydrostatic pressure and soaking solution treated sweet potato flour could be potentially utilized in food with acceptable nutritional values.

scholarly journals PENGARUH SUBSTITUSI TEPUNG TERIGU DENGAN TEPUNG TEMPE DAN TEPUNG UBI JALAR KUNING TERHADAP KADAR PROTEIN, KADAR Β-KAROTEN, DAN MUTU ORGANOLEPTIK ROTI MANIS

2012 ◽  
Vol 1 (1) ◽  
pp. 344-351
Author(s):  
Kurniawati Kurniawati ◽  
Fitriyono Ayustaningwarno
Keyword(s):  
Protein Content ◽  
Sweet Potato ◽  
High Protein ◽  
Wilcoxon Test ◽  
Potato Flour ◽  
Carotene Content ◽  
Organoleptic Quality ◽  
Sweet Potato Flour ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene

Background: Increased of high protein and β-carotene food consumption is expected may prevent PEM and VAD. Tempeh is a high-protein food stuff, while orange-fleshed sweet potato had high β-carotene content. Sweet bread with substitution of tempeh and orange-fleshed sweet potato flours is expected could be an alternative food which had high protein and β-carotene content. Objective: Analyze the effect of tempeh and orange-fleshed sweet potato flour substitution on protein and β-carotene content, and organoleptic quality of sweet bread. Method: An one factor completely randomized experimental study used 5 level of tempeh and orange-fleshed sweet potato flour substitution, which were 0%:0%, 0%:25%, 10%:15%, 15%:10%, and 25%:0%. Statistical analysis of protein and β-carotene content used One Way ANOVA followed by Tukey and Duncan test, while analysis of organoleptic quality used Friedman and Wilcoxon test. Result: Sweet bread with 25% tempeh flour substitution had the highest protein content (14.38%) and 25% orange-fleshed sweet potato flour substitution had the highest β-carotene content (0.24 mg/100 g). Substitution of 25% orange-fleshed sweet potato flour and substitution of 10% tempeh -15% orange-fleshed sweet potato flour had significant effect on β-carotene content. Tempeh and orange-fleshed sweet potato flour substitution also had significant effect on color, aroma, texture, and taste of sweet bread, but had no but had no significant effect on its protein content. Conclusion: Tempeh flour substitution increased protein content in sweet bread and orange-fleshed sweet potato flour increased its β-carotene content. Sweet bread with 10% tempeh-15% orange-fleshed sweet potato flour substitution were recommended.

scholarly journals Daily Consumption of Orange-Fleshed Sweet Potato for 60 Days Increased Plasma β-Carotene Concentration but Did Not Increase Total Body Vitamin A Pool Size in Bangladeshi Women

2012 ◽  
Vol 142 (10) ◽  
pp. 1896-1902 ◽  
Author(s):  
Kazi M. Jamil ◽  
Kenneth H. Brown ◽  
Maleka Jamil ◽  
Janet M. Peerson ◽  
Alison H. Keenan ◽  
...  
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Pool Size ◽  
Daily Consumption ◽  
Total Body ◽  
Orange Fleshed Sweet Potato ◽  
Β Carotene
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