scholarly journals Quality evaluation of sweetpotato-based complementary food

Agrosearch ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 94-105
Author(s):  
S.J. Olatunde ◽  
O.D. Oyewole ◽  
V.F. Abioye ◽  
G.O. Babarinde ◽  
R.O. Adetola

Complementary Food (CF) was developed using locally available food raw materials (millet, soybean and sweetpotato) to tackle infant malnutrition especially in rural areas. Four different samples of CF were formulated using different ratios of millet flour (MF), sweet potato flour (SPF), soybean flour (SBF); A (55% MF, 30% SPF and 15%SBF), B (50% MF, 30% SPF and 20%SBF), C (45% MF, 30% SPF and 25%SBF), and D (40% MF, 30% SPF and 30% SBF). Commercial complementary food (Nutribom) was used as control sample. The proximate and functional properties of the formulated CF were determined. The following range of values were obtained for all the complementary samples, moisture (2.98-9.05%), protein (5.06-13.19%), fat (2.50-8.71%), fibre (0.13-2.19%), ash (1.26-2.31%) and carbohydrate (55.6-57.6%). The protein, fat and fibre contents of the complementary food increased while moisture, ash and carbohydrate contents reduced with an increase in the level of SBF. The water absorption capacity, swelling power, and bulk density of the complimentary food samples ranged between 28.00 and 43.67 ml/g; 2.86 and5.22 (g/g) and 0.69and 0.81 g/ml, respectively. The functional properties of the complementary food increased when compared with the control. The complementary food blends that could be regarded as appropriate formulation based on the exhibited quality attributes evaluated was sample B which contained 50, 30 and 20% of MF, SPF and SBF, respectively. This product can serve as an alternative to commercial weaning food to prevent protein-energy malnutrition, which may help in the growth and development of children among the poor populace. Keywords: Complementary foods, functional properties, proximate properties and minerals contents

2020 ◽  
Vol 12 (2) ◽  
pp. 249-257
Author(s):  
Funke T. Alaka ◽  
Abiodun V. Ikujenlola ◽  
Oluwaseun P. Bamidele

Protein-energy malnutrition (PEM) and micronutrient deficiencies among infants and children in developing countries have been a major concern of the World Health Organization. Formulation of complementary food from local sources of raw materials can be of great help in solving the problems of protein energy malnutrition. This study determined the nutritional composition of four formulated complementary foods from malted yellow maize, pre-gelatinized yellow maize, soybean, and tiger nut flour. The results showed an increase in protein content (17.6, 16.9, 20.4 & 19.7 %), crude fat (14.9, 12.9, 13.0 & 12.9 %) and energy (433.1, 419.4, 421.5 & 426.6 %) when compared with the control sample. The functional properties also competed favourably with the control sample, with the formulated samples having water absorption capacity (171.9, 169.0, 184.1 & 167.4 %), swelling power (27.9, 25.2, 29.8 and 28.1 %), and bulk density at the same level for all the formulated samples (0.5 g/ml). The formulated samples contained a higher amount of iron and magnesium, and the anti-nutritional factors fell below the hazard level. In conclusion, formulated complementary food made from locally sourced raw materials has enough nutritional composition to be able to combat PEM and micronutrient deficiencies among infants and children.


Author(s):  
I. Mumbula ◽  
R. Nyunja ◽  
D. Chungu

Edible insects including termites form a suitable alternative for sustainable provision of animal protein to fight protein-energy malnutrition. It is as cardinal to study the food safety of edible termites as it is for any other food stuff. Twenty seven (27) samples were collected and analysed for total viable counts and Enterobacteriaceae. The microbial load was assessed using culture, microscopic and biochemical methods. The isolates identified in this study include Staphylococcus aureus, Escherichia coli, yeasts other than Candida albicans and Zygomycetes. Investigation of the total viable counts and Enterobacteriaceae of open air traded edible termites revealed loads higher than those recommended for minced meat 5.7 to 6.7 log10 cfu/g. The mean ranges were between 6.87 and 9.29 log10 cfu/g for total viable counts and 6.64 and 8.537 log10 cfu/g for Enterobacteriaceae. The presence of E. coli suggests faecal contamination of the sample along the value chain whereas S. aureus, yeasts other than C. albicans, and Zygomycetes indicate unhygienic handling of the food samples. Heat treatments can reduce the loads but may not be effective for enterotoxins and recontamination of the sample is possible. Poor hygiene and sanitation by handlers may contribute to contamination and recontamination of Edible termites. Food safety and hygiene education on processing and handling practices that reduce microbial loads at collection sites, transportation and display points are important especially since termites are sold as ready to eat foods in African open air Markets. Legislation on open defecation, use of toilets and promotion of hand washing hygiene can effectively reduce the risk of contamination with gastrointestinal microflora from faecal matter.


2019 ◽  
pp. 1-9
Author(s):  
D. B. Kiin-Kabari ◽  
O. M. Akusu ◽  
U. A. Udoh

Breakfast strips were produced from different blends of orange-fleshed sweet potato (Ipomea batatas), plantain (Musa paradisiaca) and soybean (Glycine max) flours with substitution ratios of 100:0:0, 90:10:0, 90:0:10, 80:10:10, 70:15:15, 60:20:20 and 50:25:25 and labelled as samples A, B, C, D, E, F and G, respectively. The blends were evaluated for functional properties, total carotene, vitamins (B2 and B6) and sensory properties of the breakfast strips with a commercial breakfast food (Flakes) as control (sample H) . For the functional properties, the water absorption capacity decreased while the oil absorption increased with an increase in substitution levels of the soybean flour. The bulk density, solubility, swelling power and swelling volume were higher in sample A. The least gelation capacity maintained a constant rate of 4% across the blends. The moisture content of the strips ranged from 7.25-9.40%. The Ash contents were below 3% for all the blends. The protein contents increased with an increase in substitution with soybean flour while sample A - breakfast strips from 100% orange-fleshed sweet potato flour showed the highest value for fats (5.62%). The fibre content ranged from 0.69 to 5.14% and carbohydrate content reduced with an increased substitution with soybean flour (72.25-78.70%). The energy value ranged from 351.90-384.80 Kcal/100 g which was within the limit recommended for breakfast foods. Total carotene content increased with increased substitution with orange-fleshed sweet potato (15.18-33.56 mg/kg) which is significantly higher than the control at 0.75 mg/kg. The result of the sensory evaluation showed that the overall acceptability of the samples produced compared favourably with the control. Sample A and B showed a vitamin B2 of 4.70 and 4.00 mg/kg, respectively. However, the values decreased with increase in the addition of soybean while vitamin B6 increased with increase in soybean.


2019 ◽  
pp. 1-12
Author(s):  
M. O. Eke ◽  
D. Ahure ◽  
N. S. Donaldben

Cookies was produced from wheat (Triticum, spp), acha (Digitaria exilis), and sprouted soybeans (Glycine max) flour blends. The acha and soybeans were processed into flour and used to substitute wheat flour at different proportions with 100:0:0 wheat, acha and sprouted soybeans flour (WAS) as the control, 60:30:10, 50:40:10, 45:45:10, 40:50:10 and 35:55:10 (WAS). The functional properties of the wheat, acha and sprouted soybeans flour blends, physical properties and proximate compositions of the cookies were determined. The functional properties of the flour samples shows that the bulk density, wettability, water absorption capacity, oil absorption capacity and gelatinization temperature ranged from 0.63 g/ml-0.99 g/ml, 10.21-12.98 g/sec, 6.53-12.52 g/g, 0.52-0.66 g/g and 63.7-65.1ºC respectively. There were significant differences (p<0.05) in all the values. The proximate composition of cookies sample showed that crude protein, crude fat, crude fibre, ash, moisture and carbohydrate content ranged from 12.14-16.48 %, 2.10-3.74 %, 1.76-2.55 %, 2.75-8.55 %, 9.18-9.50 % and 59.37-72.06 % respectively. The physical properties of cookies showed that the weight, diameter, thickness and spread ratio ranged from 15.61-17.11g; 61.59-63.20mm; 9.88-11.99mm and 5.28-6.24 respectively. The control sample cookies from 100:0:0 (WAS), wheat, acha and sprouted soybeans flour blends sample had the highest sensory scores in terms of the taste, appearance, texture, aroma and overall acceptability. There was significant difference (p<0.05) in the colour, texture and aroma but there was no significant difference (p>0.05) in the taste and overall acceptability in 60:30:10, 50:40:10, 45:45:10, 40:50:10 and 35:55:10 (WAS) samples.


2020 ◽  
Vol 18 (1) ◽  
pp. 88-102
Author(s):  
A. T. OMIDIRAN ◽  
O. A. ADERIBIGBE ◽  
O. P. SOBUKOLA ◽  
O. O. AKINBULE

This study evaluated some quality attributes of pancakes from peeled and unpeeled sweetpotato flours and cassava starch. Cassava starch was substituted up to 30% of the total composite flour. The proximate composition, colour, carotenoid and functional properties of the different flour blends were determined. The flour blends were processed into pancakes and the proximate composition and sensory acceptability of the pancakes were determined. Data obtained were subjected to analysis of variance. The result showed that they were significant differences (p<0.05) in the functional properties of the flour blends. Bulk density, Water absorption capacity, Oil absorption capacity, swelling capacity ranged from 0.70 to 0.78 g/ml, 1.87 to 2.30 g/ml, 1.02 to 1.40 g/ml and 5.18% to 6.66%  respectively. There were significant differences (p<0.05) in the proximate composition of the pancake samples. The values ranged from 42.76 to 45.53%, 2.13 to 3.98%, 9.06 to 10.34%, 5.01 to 7.18%, 3.75 to 6.01% and 29.19 to 35.33% for moisture, ash, fat, protein, crude fibre and carbohydrate contents, respectively. Pancake produced from 100:0 peeled and unpeeled sweetpotato flour had the highest score for overall acceptability which can compare favorably, with pancakes from wheat flour which is the control sample. In conclusion, sweetpotato flour blended with cassava starch at different ratio gave good proximate and functional properties which resulted in pancakes of good quality attributes.    


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8788
Author(s):  
Numrah Nisar ◽  
Faiza Mustafa ◽  
Arifa Tahir ◽  
Rashad Qadri ◽  
Yaodong Yang ◽  
...  

Background Extensive milling processes have deprived wheat flour from essential nutrients. The objective of the current study was to assess the nutritive quality of commercial wheat flour (soft flour (SF)) through analyses of proximate composition and functional properties as well as quantification of benzoyl peroxide (BPO; added as bleaching agent in the SF) by comparing the results with whole wheat flour (WF; never received any additives). Methods The samples included commercial SF purchased from the local supplier of different flour mills (who use BPO as additive) and a control sample without additives was prepared by grinding the seeds harvested from wheat (Triticum aestivum L.; Inqulab 91) crop grown in the experimental field of University of Agriculture, Faisalabad, under optimized field conditions without any fertilizers and insecticides. Functional properties (including bulk density, water absorption capacity, oil absorption capacity, emulsifying activity, foaming capacity, least gelatinization concentration and gelatinization temperature) and proximate composition (including moisture content, ash contents, crude protein, gluten and starch contents) were determined and compared for all the samples. Benzoyl peroxide (BPO) and Benzoic Acid (BA) quantification was performed through High Performance Liquid Chromatography. Finally dietary intake was estimated for BPO and BA. Results Results showed that SF had lesser fiber, protein and ash contents, whereas, higher damaged starch, fat, gluten and bulk density. A parallel experiment under selected conditions (temperature, time and solute concentration) showed dissociation of BPO into BA soon after the exposure. Observed BA range (13.77 mg/g after 16 h) in SF and exposure level assessment (44.3 ± 1.36 mg/kg/BW) showed higher intake of BA on the consumption of SF. The results revealed the superiority of WF over SF in nutritive qualities as well as free of toxicants such as BA.


2021 ◽  
pp. 45-62
Author(s):  
Joy N. Eke-Ejiofor ◽  
Adelaide E. Ojimadu ◽  
Gabriel O. Wordu ◽  
Chigozie E. Ofoedu

The progress towards exploring the potentials of underutilized indigenous food sources via product development to curb food wastage and agro-food extinction is a way of attaining food nutrition and security within a region. In this context, a comparative study involving some functional properties of complementary food from some underutilized foods (millet, African yam bean, and jackfruit) was carried out. Briefly, millet, African yam bean, and jackfruit were subjected to series of processing treatments such as malting, pre-gelatinization, drying, and milling, followed by blending into various ratios to obtain different samples of composite flours as a complementary food. From these, the functional properties, that is, water absorption capacity (WAC), loose bulk density (LBD), packed bulk density (PBD), foam capacity (FC), swelling index (SI), dispersibility, wettability, and sinkability were determined. Results showed that malting and pre-gelatinization influenced the intrinsic functional properties of the flour blends. In addition, composite flours containing malted samples had significantly lower (p<0.05) dispersibility, SI, WAC, LBD, and PBD, but significantly higher (p<0.05) wettability and sinkability. The variations in flour substitution showed no impact on the flour functionality except for SI and dispersibility. All composite flours exhibited an appreciable level of functionality and suitability to be used as a complementary food for weaning purposes. Overall, this research has demonstrated the potentials of utilizing millet, African yam bean, and jackfruit as sustainable nutrient-dense food materials for the production of complementary food.


2018 ◽  
Vol 20 (90) ◽  
pp. 22-26
Author(s):  
Y. Matsuk ◽  
I. Marchenko ◽  
V. Pasichnyi

The article is devoted to the improvement of the recipes of minced meat products with using fish raw materials and the study of organoleptic and functional and technological properties of developed minced meat systems and finished products. The research has been carried out on the rational combining of meat and fish raw materials and the expansion of assortment of minced semi-finished products. The formulations of minced meat systems for the production of meat semi-finished with a partial replacement of the main raw material to fish raw materials have been developed. The organoleptic and functional and technological parameters of minced meat systems and finished products are investigated. According to the results of the organoleptic evaluation, it was found that partial replacement of meat raw material with minced fish does not worsen the sensory characteristics of minced meat products. It is established that in comparison with the control sample there is an improvement of functional and technological indicators. In particular, the moisture content increased by an average of 6.1%, moisture absorption capacity – 5.91%, energy absorption capacity – 2.49%, fat-retaining ability – 2.52%. The obtained results confirmed the expediency of using minced meat with pollack in the technology of minced meat semi-finished products with due observance of the parameters of production cycle of heat treatment of products. It has been theoretically substantiated and experimentally confirmed the technology of meat products using minced meat and developed recipes. It has been established that with careful selection of components that are part of minced meat semi-finished products with the addition of fish raw materials can increase the organoleptic and functional and technological parameters of finished products. The obtained data suggest that the improved recipes of minced meat semi-finished products can be recommended for production by enterprises of the meat industry and restaurants


2020 ◽  
Vol 7 (1) ◽  
pp. 97-104
Author(s):  
N.J. Deedam ◽  
M.A. China ◽  
H.I. Wachukwu

The present study was aimed at utilizing soursop flour for the production of chin-chin. Soursop (SS) was processed to flour. Chin-chin was prepared from blends of wheat and soursop flours using 90:10, 80:20, 70:30, 60:40, 50:50 of wheat flour to soursop flour (SSF), and 100% wheat flour as control. Proximate and sensory analysis of the chin-chin was determined using standard methods. The samples were also stored for 3 weeks and evaluated at weekly intervals for total bacterial and fungal counts. Proximate composition of the chin-chin revealed a significant (p<0.05) increase in ash (0.42-0.96%), fat (33.31-39.29%), crude protein (5.32-7.94% protein), crude fibre (0.95-1.12%), and moisture content (4.85-7.65%) with a decrease in carbohydrate content (55.14-42.94%) as substitution of soursop flour increased. Energy content decreased as substitution of soursop flour increased, but beyond 30%, level, the energy content was observed to increase significantly. Substitution of soursop flour with wheat flour at the level of 10% compared favorably with the control sample suggesting that acceptable chin-chin could be produced at SSF substitution of up to 10%. The samples presented adequate microbiological conditions after storage of 3 weeks with counts ranging from 5.20×103-7.00×104cfu/g and 4.00×104-6.00×104cfu/g, for total bacterial and fungal counts, respectively. The study therefore showed that soursop can be utilized for the development of chin-chin with improved nutritional value over 100% wheat flour thereby serving as a nutritious household food which will help address the problem of protein-energy malnutrition.


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