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1 – 4 of 4Victoria A. Jideani, Rasheedat Alamu and Israel A. Jideani
This paper seeks to examine the production of wheatless bread from acha flour and to determine consumer acceptability of the product.
Abstract
Purpose
This paper seeks to examine the production of wheatless bread from acha flour and to determine consumer acceptability of the product.
Design/methodology/approach
Wheatless bread was baked from acha (Digitaria exilis) and Irish potato starch blends of 80:20 respectively with varying (1‐4 per cent) quantity of carboxymethylcellulose (CMC). The loaves were assessed for loaf volume (LV) and specific loaf volume (SLV) as well as consumer acceptability.
Findings
The addition of CMC gave an increase in LV of 40.0 per cent in acha bread (AB) with 1 per cent CMC to 59.5 per cent in AB with 4 per cent CMC. The SLV of the acha loaves did not differ significantly from one another. There were significant differences (p < 0.05) between AB without CMC, AB with 1‐3 per cent CMC and wheat bread in appearance, crust colour, crumb texture, crumb colour and general acceptability (p < 0.05). However, there was no significant difference between the AB with 4 per cent CMC and wheat bread in crumb texture, crumb colour and general acceptability. AB with 4 per cent CMC compared favourably with wheat bread in sensory characteristics.
Research limitations/implications
This work was a preliminary work to determine the possibility of producing bread with acha. Further research will investigate the functional and nutritional qualities of AB with 4 per cent CMC found to be comparable with wheat bread.
Practical implications
The study demonstrated the possibility of producing AB using CMC.
Originality/value
Acha has been identified as a major food for diabetic patients in Nigeria by medical practitioners. The AB developed will be of great benefit to countless diabetic patients in Nigeria.
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Mpho Edward Mashau, Afam Israel Obiefuna Jideani and Lucy Lynn Maliwichi
The purpose of this paper is to determine the effect of adding Aloe vera powder (AVP) in the production of mahewu with the aim of determining its shelf-life and sensory qualities.
Abstract
Purpose
The purpose of this paper is to determine the effect of adding Aloe vera powder (AVP) in the production of mahewu with the aim of determining its shelf-life and sensory qualities.
Design/methodology/approach
Mahewu was produced at home (Sample B) and in the laboratory (Sample C) using a standard home-made procedure with the addition of AVP. A control mahewu (Sample A) was produced without AVP. Shelf-life was determined by following the chemical, microbiological, physical properties at 36 ± 2 °C for 60 days and the sensory properties of the products were also evaluated.
Findings
Physicochemical analysis revealed decreases in pH ranging between 3.3 and 2.4 from day 15–60 days of storage in all three samples. There was a significant increase (p < 0.05) in titratable acidity (0.2–1.8%) of all mahewu samples during storage. Total soluble solids were different amongst the samples from day 15 to day 60. The colour of the products was significantly different (p = 0.05) with respect to L*, a* and b* throughout the storage period. Microbiological results revealed an increase in coliforms bacteria, lactic acid bacteria, and yeast during storage. Sensory analysis showed that the control mahewu was more preferred than AVP added mahewu.
Practical implications
The study may help small-scale brewers to increase the shelf-life of mahewu.
Originality/value
Results of this study showed that the addition of AVP extended shelf-life of mahewu up to 15 days at 36 ± 2 °C.
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Khavhatondwi Rinah Netshiheni, Mpho Edward Mashau and Afam Israel Obiefuna Jideani
White maize-based porridge is a staple food for about 80 per cent consumers in South Africa and in other sub-Saharan African countries contributing significantly to the diet of…
Abstract
Purpose
White maize-based porridge is a staple food for about 80 per cent consumers in South Africa and in other sub-Saharan African countries contributing significantly to the diet of rural population in developing countries. White maize is deficient in some amino acids and over-dependency on its porridge may lead to high prevalence of malnutrition-related health conditions. Moringa oleifera (MO) and termite (Macrotermes falciger) are known to contain substantial amount of protein. The purpose of this study was to determine the effect of powders from MO leaves and termite on the nutritional and sensory properties of instant maize porridge.
Design/methodology/approach
Inclusion of MO and termite powder in instant maize porridge, using different treatments were considered using a completely randomised design. Factor levels were control (maize flour) cooked, blanched and uncooked MO samples. Data were analysed using SPSS version 23.
Findings
Protein content of fortified instant maize porridge (FMP) significantly increased from 10.0 to 21.2 per cent compared to unfortified porridge, and this could be attributed to the substitution effect, as fresh uncooked MO leaves are reported to be high in protein. Mineral content of FMP was higher in zinc, iron, calcium and magnesium. Calcium values of FMP were higher (276.8 mg/100 g) compared to unfortified porridge (7.1 mg/100 g). Upon the addition of MO leaves and termite powder, the zinc content increased from 3.4 mg/100to 7.6 mg/100 g. Higher iron values (27.9-36.9 mg/100 g) were observed among fortified samples. The sensory result showed that control sample had higher acceptance than the fortified samples (p = 0.02). Sensory analysis showed that among fortified porridges, blanched sample was rated high for colour and texture, cooked sample was higher in taste and uncooked sample was higher for aroma. Control sample had higher acceptance than fortified porridges for taste. The results of this study showed that the addition of MO leaves and termite powder to instant maize porridge has led to a substantial increase in the nutritional value of FMP.
Originality/value
This study was carried out to develop instant maize porridge fortified with MO leaves and termite powder suitable for infants, pregnant mothers and other maize consumers. The author aimed at improving the nutritional content of instant maize porridge by combining it with MO leaves and termite powders. The results showed that the addition of MO leaves and termite powders to instant maize porridge has led to a substantial increase in the nutritional value of FMP. Therefore, powder from MO leaves and termites could be used in complementary foods to increase protein and mineral contents.
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Victoria Adaora Jideani, Rosemary Aina Salami and Israel Afam Jideani
The purpose of this paper is to report on a study to produce wheatless bread from acha/fonio (Digitaria exilis) flour with sprouted soybean flour (SSF) using Irish potato starch…
Abstract
Purpose
The purpose of this paper is to report on a study to produce wheatless bread from acha/fonio (Digitaria exilis) flour with sprouted soybean flour (SSF) using Irish potato starch (IPS) as gluten replacer and determine the sensory qualities of the product.
Design/methodology/approach
Acha bread (AB) was baked from acha flour with varying quantities of yeast and IPS added as determined by the 32 factorial design arrangement. Nine different formulations of acha were produced. The loaves were assessed for loaf volume (LV), specific loaf volume (SLV), loaf firmness (LF), proximate composition and consumer acceptability to determine the effect of IPS, yeast and SSF.
Findings
The different levels of yeast and IPS gave significant (p < 0.05) changes in firmness of the loaves. A negative effect was observed for yeast and positive effect for IPS. Beyond 4 per cent yeast the effect of yeast on LV was not significant. Hence, the optimal level of yeast was between 2 to 4 per cent. The effect of IPS significantly (p < 0.05) increased the LV. The product with 2 per cent yeast +20 per cent IPS +5 per cent SSF was judged the best recipe for consumer acceptable acha bread. Addition of SSF made the bread softer and significantly increased the crude protein and fibre content of the loaf. The acha bread had apparent yield stress of 286.6 to 546.8 kN/m2 and specific loaf volume of 2.05 to 2.16 cm3/g.
Research limitations/implications
A deliberate attempt was made to remove sugar from this product and as such is believed to serve as a good alternative to wheat bread for diabetic individuals and those allergic to gluten. Further research will investigate the functionality of IPS and SSF in AB making and nutritional qualities of the product.
Practical implications
The study demonstrates that IPS was effective in retaining gas evolved during baking and that SSF significantly increased the nutritional quality of acha bread.
Originality/value
The results of this research contribute to development of specialty cereal based foods for diabetic individuals in Africa and Dominican Republic where acha (fonio) is grown.
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