scholarly journals Nutrient composition and functional properties: Suitability of flour of sweet potatoes (Ipomea batatas) for incorporation into food production

2021 ◽  
Vol 15 (3) ◽  
pp. 897-908
Author(s):  
G.R. Nipuni Nayanathara Waidyarathna ◽  
Sagarika Ekanayake
Keyword(s):  
Dietary Fiber ◽  
Sweet Potato ◽  
Functional Properties ◽  
Food Production ◽  
Crude Protein ◽  
Nutrient Composition ◽  
Composite Flour ◽  
Sweet Potatoes ◽  
Total Carbohydrate ◽  
Total Dietary Fiber

Sweet potatoes are effortlessly grown and high yielding food crop. However, these are considered as underutilized produce with limited incorporation into food industry. Hence the objectives of this study were to determine the nutrient composition and functional properties of twelve (12) sweet potato varieties available in Sri Lanka to study the potential to be incorporated into food production. The varieties analysed were Ama, Dhawala, Wariyapola White, Wariyapola Red, Shanthi, Hordi Malee, CARI 09, CARI 273, Ranabima, Gannoruwa White, Chithra and Makandura Purple. Determination of moisture, ash, crude protein, crude fat, dietary fiber (soluble/insoluble), carbohydrates and functional properties were by standard methods. Ash, crude fat and crude protein contents comprised less than 7% (dry matter; DM) with total carbohydrate content varying between 49-80% DM in studied sweet potatoes. Total dietary fiber comprises approximately 8.5% (DM) with the highest proportion being insoluble dietary fiber. Functional properties resulted a swelling capacity of 15-27 mL with high oil absorption capacity (120-220%), emulsion activity (42-48%) and stability (above 35%), and bulking density (0.62-0.95 g/cc) with least gelation concentration of 18-30%. The results prove the ability of the studied sweet potato flours to be incorporated in composite flour mixtures and novel food products.

scholarly journals Comparative analysis of nutrient composition and glycaemic indices of nine sweet potatoes (Ipomoea batatas) varieties

2021 ◽  
Vol 15 (4) ◽  
pp. 1410-1420
Author(s):  
Galahitiya Ralalage Nipuni Nayanathara Waidyarathna ◽  
Sagarika Ekanayake ◽  
Anoma Chandrasekara
Keyword(s):  
Dietary Fiber ◽  
Sweet Potato ◽  
Crude Protein ◽  
Ipomoea Batatas ◽  
Dry Weight ◽  
Nutritional Composition ◽  
Nutrient Composition ◽  
Weight Basis ◽  
Sweet Potatoes ◽  
Total Dietary Fiber

Sweet potatoes are one of the major tuberous roots consumed around the world. The objective of the present study was to determine the nutritional composition, glycaemic indices and glycaemic loads of selected Sri Lankan sweet potato varieties, in order to address the inadequacy of information and the controversial findings on glycaemic indices. Nutrient composition (moisture, ash, digestible carbohydrates, dietary fiber, crude protein and fat) of boiled sweet potatoes, GI and glycaemic loads (GL) of nine varieties were determined using standard methods. Digestible carbohydrate content ranged between 29-88% on dry weight. Ash, crude protein and crude fat contents of the varieties ranged between 3.1-5.0%, 3.0-5.9% and 2.6-5.3% on dry weight basis (DW) respectively. The total dietary fiber content was above 9.5% DW in the studied varieties. Moisture content of boiled sweet potato tubers were 72-81% on fresh weight basis and both the GIs (86-119) and GLs (>20) were high. However, the GL reduced to medium or low when considering an actual edible portion for all the varieties except for two varieties. Sweet potatoes are a good source of highly available carbohydrates which elicit high GIs.

scholarly journals Nutrient composition of full fat and defatted rice bran

2018 ◽  
Author(s):  
Neeta Kumari ◽  
Neelam Khetarpaul ◽  
Vinita . ◽  
Priyanka Rani
Keyword(s):  
Dietary Fiber ◽  
Rice Bran ◽  
Crude Protein ◽  
Protein Digestibility ◽  
Nutrient Composition ◽  
Crude Fiber ◽  
Total Dietary Fiber ◽  
Defatted Rice Bran ◽  
Total Carbohydrates ◽  
Removal Of Fat

The present investigation was conducted to evaluate the nutrient composition of full fat/defatted rice bran. The content of crude protein, crude fiber, ash, total carbohydrates and total dietary fiber of full fat and defatted rice bran were 11, 13.80; 10.90, 13.10; 9.20, 11.60; 49.92, 61.46; 21.63, 24.50 per cent, respectively. The amount of total Ca, P, Mg, Fe and K of full fat and defatted rice bran were 69.23, 69.80; 1331, 1345; 798, 826; 32.80, 33.31 and 1435, 1456 mg per 100g, respectively. The protein digestibility of full fat rice bran (65.86%) was less as compared to that of defatted rice bran (66.56%). Defatted rice bran had 6.21 mg available iron and 17.57 mg available calcium per 100g which were significantly (P less than 0.05) higher than those of full fat rice bran. Because of removal of fat, the relative amounts of other nutrients changed proportionately in defatted rice bran.

scholarly journals Corn Flour Formulation and Fortification Tests: Evaluation of Acceptability of Local Derived Product Called “Kabato” Case of Napalakaha, Nibolikaha and Tiangakaha of Region of Korhogo

2020 ◽  
Vol 9 (1) ◽  
pp. 41
Author(s):  
Kouassi Amenan Elodie ◽  
Gbogouri Grodji Albarin ◽  
Ndri Yao Denis ◽  
Niaba Koffi Pierre Valery ◽  
Amoakon Léonce ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Dietary Habits ◽  
Composite Flour ◽  
Potato Flour ◽  
Soya Flour ◽  
Nutritional Knowledge ◽  
Corn Flour ◽  
Sweet Potatoes ◽  
Sweet Potato Flour ◽  
Method Analysis

The good use of food is one of the fundamental points of the food security of the populations especially in the developing countries. Therefore, for convincing results, the methods of strengthening nutritional knowledge by improving the culinary practices of vulnerable populations must take into account the dietary habits of the targets. The objective of the present study was to contribute to the consumption of the project crops to develop food formulations. In practice, eight (8) cornmeal formulas using soybeans and orange-fleshed sweet potatoes have been proposed and submitted to the grantees. The different proportions of ingredient to be mixed were obtained by the Pearson's Square method. Analysis of the sensory evaluation data was possible to the Statistical Package for Social Sciences (SPSS) software version 21 and the different results were presented in the form of radar graphs. The results showed that simultaneously flours and “kabato” accepted by the populations of the study area were formulations of: - E: 72.26 percent of maize flour and 27.74 percent of sweet potato flour - F: 53.76 percent of corn flour and 46.24 percent of sweet potato flour - G: 89.3 percent of composite flour (maize and sweet potato) and 10.7 percent of soya flour - H: 78.09 percent of composite flour (maize and sweet potato) and 21.91 percent of soya flour So, it can be envisaged to implement a strategy for a better vulgarization of these methods.

scholarly journals Karakteristik Kimia Biskuit dari Tepung dan Serat Ubi Jalar Ungu

2020 ◽  
Vol 11 (2) ◽  
pp. 64-68
Author(s):  
Stefani Limanto ◽  
Elisa Julianti ◽  
Zulkifli Lubis
Keyword(s):  
Dietary Fiber ◽  
Sweet Potato ◽  
Fiber Content ◽  
Calorie Intake ◽  
Potato Flour ◽  
Total Dietary Fiber ◽  
Insoluble Dietary Fiber ◽  
Daily Energy ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

Purple sweet potato is one type of tuber that is rich in carbohydrates in the form of starch and fiber. It also contains purple anthocyanin pigments. In this research, purple sweet potato was processed into flour and starch. Starch processing solid waste can be utilized by processing it into fiber flour. Purple sweet potato flour and fiber were then used as the basis for making biscuits at a ratio of 75: 25 and compared to biscuits made from 100% purple sweet potato flour and wheat flour. The resulting biscuits were then analyzed for their chemical characteristics. The results showed that the ratio of flour gave a very significantly different effect on the value of water content, total dietary fiber content, insoluble dietary fiber content and % nutritional adequacy rate of food fiber, and had no significant effect on the value of ash content, protein content, fat content, content carbohydrates, total flavonoids, insoluble dietary fiber content, calorie intake and fulfillment of daily energy adequacy.

Urea Enzymatic Dialysis Procedure for Determination of Total Dietary Fiber

1989 ◽  
Vol 72 (4) ◽  
pp. 677-681
Author(s):  
Joseph L Jeraci ◽  
Betty A Lewis ◽  
J Peter ◽  
Van J Soest ◽  
James B Robertson
Keyword(s):  
Dietary Fiber ◽  
Crude Protein ◽  
Gravimetric Method ◽  
New Method ◽  
Locust Bean Gum ◽  
Total Dietary Fiber ◽  
Insoluble Dietary Fiber ◽  
Aoac Method ◽  
Locust Bean

Abstract A method that uses urea and enzymes for determination of total dietary fiber (TDF) in foods has been developed and compared with the AOAC enzymatic-gravimetric method (43.A14-43.A20). In the evaluation, results for crude protein and ash contamination were higher by the AOAC method, particularly for samples that form gels during ethanol precipitation. The new urea enzymatic dialysis (UED) method quantitatively recovered, with less variation, more of the purified and semipurified dietary fiber products. TDF recoveries for carboxymethylcellulose and locust bean gum were 98% (SD 3.3) and 95% (SD 6.1) by the AOAC method and 99% (SD 1.0) and 100% (SD 0.6) by the UED method, respectively. The UED method was the more effective in removing starch. For kale samples, starch recovery was 3.5 and 0.2% from TDF residues obtained using the AOAC and UED methods, respectively. Differences were not significant among replicate values for determination of TDF in foods by the UED method (P >0.01). Preliminary studies suggest that the new method can separately determine soluble and insoluble dietary fiber. The data indicate that the UED method is more precise and accurate than the AOAC method.

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 Karakteristik Pati Ubi Jalar Crem (Ipomea batatas) Termodifikasi HMT pada Berbagai Kondisi Kadar Air dan Temperatur

2016 ◽  
Vol 8 (2) ◽  
pp. 61
Author(s):  
Virna Muhardina ◽  
Lukmanul Hakim ◽  
Zaidiyah Zaidiyah ◽  
Anshar Patria ◽  
Ismail Sulaiman
Keyword(s):  
High Temperature ◽  
Moisture Content ◽  
Water Content ◽  
Dietary Fiber ◽  
Sweet Potato ◽  
Potato Starch ◽  
Total Dietary Fiber ◽  
Heat Moisture Treatment ◽  
Moisture Treatment ◽  
Sweet Potato Starch

Sweet potato starch characteristic of local variety using heat moisture treatment with different level of moisture content and temperatureThe aim of this study is to modify local variety sweet potato starch (cream flesh color) in order to produce the optimal dried-noodle based starch. Native starch was maintained in varied water content (20%, 25% and 30%) and heat moisture treatment (HMT) by exposing the starch in high temperature, i.e. 90oC, 95oC, 100oC and 110oC for 3 h. The treated starch was analyzed using some parameters such as: swelling power, solubility, SEM (scanning electron microscopy) and total dietary fiber. Based on this study, swelling power shows decreasing as increasing both HMT temperature and starch water content. In other hand, solubility shows not significant different among all treatments. The treated-starch granule which is exposed to high temperature has irregular shape compared to granule in lower temperature. Furthermore, total dietary fiber shows significant different among the starch moisture content and the temperature treatment. HMT modification at 100oC and starch water content of 30% is chosen as the best results

scholarly journals Sifat fisik makanan padat (foodbar) berbasis tepung komoditas lokal

2020 ◽  
Vol 4 (1) ◽  
pp. 32-38
Author(s):  
Anni Nuraisyah
Keyword(s):  
Sweet Potato ◽  
Fast Food ◽  
Raw Materials ◽  
Content Volume ◽  
Composite Flour ◽  
Potato Flour ◽  
Sweet Potatoes ◽  
Green Beans ◽  
Bean Flour ◽  
Sweet Potato Flour

Consumption of fast food continuously can be detrimental to human health. An effective solution is to make innovative food that is able to meet the adequacy of nutrition, one of which is foodbar. The raw materials used in the manufacture of foodbar come from local commodities which are flourished, including sweet potatoes, green beans and Moringa and added porang to unite the three ingredients. Yellow sweet potato flour contains 77.7% carbohydrates with high digestibility (98%), while Moringa leaf flour contains 27.1 grams / 100 grams protein. Mung bean flour is used as a flavoring agent, while porang flour which is rich in glucomannan acts as a binder agent to produce foodbar products that are not easily destroyed. The treatment in this study used two factors, namely the composition of the composite flour and the composition of the addition of porang. Observations made include physical properties including water content, volume expansion, kamba density and texture of the foodbar. The best treatment on the foodbar was the combination treatment of 100 grams of yellow sweet potato flour (40 grams) green bean flour (60 grams) moringa leaf flour and (4%) porang (P3T1).

scholarly journals DIETARY FIBER AND ANTIOXIDANT ACTIVITY OF GLUTEN-FREE COOKIES WITH COFFEE CHERRY FLOUR ADDITION

2019 ◽  
Vol 14 (4) ◽  
pp. 493 ◽  
Author(s):  
Damat Damat ◽  
Rista Anggriani ◽  
Roy Hendroko Setyobudi ◽  
Peeyush Soni
Keyword(s):  
Antioxidant Activity ◽  
Dietary Fiber ◽  
Food Production ◽  
Gluten Free ◽  
Total Dietary Fiber ◽  
Coffee Pulp ◽  
Coffee Husk ◽  
Physical Chemical ◽  
Nutraceutical Properties ◽  
Arrowroot Starch

<p>Coffee husk and coffee pulp are by-product of coffee fruit and bean processing, can be considered as potential functional ingredients for food production as coffee cherry flour (CCF).  The CCF contains a lot of carbohydrates, proteins, caffeine, tannins, and polyphenols. In this study, CCF was combined with modified arrowroot starch (MAS) and modified cassava flour (MOCAF) into cookies and improvement on the physical, chemical, and nutraceutical properties of the cookies were studied. The cookies consisted of 20 % of MOCAF and 80 % mixed of modified arrowroot starch and CCF in five levels (80 %:0 %; 75 %:5 %; 70 %:10 %; 65 %:15 %; 60 %:20 %) and objective physical, chemical, and nutraceutical properties of the cookies were assessed. The results showed that the total dietary fiber content was enhanced from 11.69 % to 19.48 % with a high proportion of 20 % CCF. The cookies added with CCF displayed enhanced antioxidant activity. Acceptable cookies were obtained by adding 5 % CCF. Thus, the results implied that cookies with CCF addition obtained dietary fiber enriched cookies with improved antioxidant activity.</p>

Sign in / Sign up

Export Citation Format

Share Document