scholarly journals Assessment of Functional and Pasting Properties of Fresh Orange Maize Hybrids and Open-Pollinated Varieties as Influenced by Genotype, Harvesting Time, and Growing Location

2021 ◽  
Vol 8 ◽  
Author(s):  
Emmanuel Oladeji Alamu ◽  
Busie Maziya-Dixon ◽  
Abebe Menkir ◽  
Michael Adesokan ◽  
Olorunfemi Olaofe

The study evaluates the effects of genotype, maturity, and growing location on the functional and pasting properties of freshly harvested orange maize hybrids and open-pollinated varieties (OPVs). Eight fresh orange maize hybrid and eight fresh maize OPV, including the control, were harvested at three stages: 20, 27, and 34 days after planting (DAP). The freshly harvested maize samples were lyophilized and characterized for the pasting and functional properties using standard laboratory methods. The peak viscosity, final viscosity, and swelling power of the OPVs increased between 20 and 27 DAP. Additionally, the water absorption capacity increased between 20 and 27 DAP for the maize hybrids, with a decreasing trend between 27 and 34 DAP. However, genotypes 2, from the orange maize hybrid, and 5, amongst the OPV, were outstanding with the highest peak viscosities, indicating good final product quality. The combined ANOVA for the fresh orange maize hybrid and OPV showed a highly significant effect (p ≤ 0.01 and p ≤ 0.001) for the maturity and location on the pasting and functional properties except for the pasting temperature, final viscosity, and pasting time which showed no significant effect. In contrast, the location by genotypes by maturity interactions had no significant effects on the pasting and functional properties of the fresh maize hybrid and the orange OPV except only for the setback, which was highly significant at p ≤ 0.001. Nutritionists, food scientists, and maize breeders could use the information from this study to select the best maize genotypes at the appropriate harvesting period suitable for the production of the preferred maize-based products of consumers.

2021 ◽  
pp. 108201322110694
Author(s):  
Ashura Katunzi-Kilewela ◽  
Leonard MP Rweyemamu ◽  
Lilian D Kaale ◽  
Oscar Kibazohi ◽  
Roman M Fortunatus

The study established the proximate composition, pasting, and functional properties of cassava flour (CF) blended with chia seeds flour (CSF). Composite flour was prepared by blending CF with CSF in the ratios of 95:05, 90:10, 85:15, 80:20, and 75:25 with CF and CSF used as controls, respectively. The effect of blending significantly (p < 0.05) increased protein, fat, fibre, and ash contents as CSF increased. On other hand, moisture and carbohydrate contents decreased significantly. Pasting properties of composite flour blends decreased significantly (p < 0.05) as the incorporation of CSF increased and a noticeable change was observed for composite flour (75:25) except for peak time and pasting temperature. Functional properties of water absorption capacity (WAC) of CSF were significantly different with CF and composite flour blends. Oil absorption capacity (OAC) of CF and CSF were significantly different, while the composite flour blends had varied OAC due to the inclusion of the different amounts of CSF. The swelling capacity (SC) of CF and CSF were not significantly different, but composite flour blends were significantly different from both CSF and CF. The least gelation concentration (LGC) and bulk density (BD) increased significantly as chia seeds increased. Increased concentration of chia CSF in the composite flour blends showed to alter the functional properties. This study recommends composite flour 75:25 for processing semiliquid products like porridge due to reduced pasting properties values that may be associated with increased energy density compared to CF.


2021 ◽  
pp. 65-73
Author(s):  
Owuno Friday ◽  
Achinewu Simeon Chituru

Chin-Chin, a traditional Nigerian snack was prepared utilizing wheat-fermented maize residue composite flour at 0 – 30% replacement levels. Effects of this addition on the functional and pasting properties of the flour composite was evaluated. The snack produced was also evaluated for its sensory attributes, proximate composition and invitro-protein digestibility (IVPD). Functional properties results showed an increase in water absorption capacity (WAC), a decrease in oil absorption capacity (OAC), decrease in Bulk Density (BD), swelling power and solubility index with residue addition. Pasting property results showed a drop in the value of peak, trough, breakdown and final viscosity with substitution while set back viscosity increased.Peak temperature decreased, but values for pasting temperature showed no significant difference between the control and the blends. Results for sensory evaluation showed equal preference for overall acceptability. Proximate composition results showed residue addition led to an increase in crude fibre and protein content with a drop in the carbohydrate value. Residue addition did not increase protein digestibility. Addition of fermented maize residue in chin-chin production can be another way of utilizing the fibre rich by-product of the production of fermented maize starch.


2020 ◽  
Vol 13 (1) ◽  
pp. 51-68
Author(s):  
O. F. Akinyele ◽  
A. V. Ikujenlola ◽  
T. O. Omobuwajo

Abstract Pupuru and pupuru analogues are fermented, smoked food products usually produced from cassava or cassava substituted with a varying ratio of breadfruit. This study aims at determining and comparing the functional and pasting characteristics of pupuru and pupuru analogues with a view to expanding the utilization of breadfruit as pupuru analogue. The functional properties (water absorption capacity (%), swelling power (g/g), solubility (%)) and pasting characteristics were determined using standard methods. The results showed that the yield of the products ranged between 24.66 and 29.65%, and it was not affected by the amount of breadfruit substituted. The water absorption capacities of the pupuru and pupuru analogues ranged between 216.0 and 449.0%; this parameter increased with temperature increase. Both swelling power and solubility had a rapid increase from 80 °C to 90 °C. Pasting temperature ranged between 73.15 and 83.66 °C, with peak time between 4.58 and 5.33 min. The final viscosity ranged between 94.08 and 391.83 RVU, and it decreased with increase in breadfruit substitution. The study concluded that adding breadfruit to cassava in pupuru analogue production improved some of the functional and pasting properties of the product.


2020 ◽  
Vol 4 ◽  
Author(s):  
Abdulazeez Olamilekan Elemosho ◽  
Emmanuel Anyachukwu Irondi ◽  
Emmanuel Oladeji Alamu ◽  
Emmanuel Oladipipo Ajani ◽  
Busie Maziya-Dixon ◽  
...  

Understanding the bioactive constituents and physicochemical components in cereals can provide insights into their potential health benefits and food applications. This study evaluated some bioactive constituents, carbohydrate profiles and pasting properties of 16 Striga-resistant hybrids, with yellow-orange kernel color and semi-flint to flint kernel texture, grown in two replications at two field locations in Nigeria. Carotenoids were quantified using HPLC, while other analyses were carried out using standard laboratory methods. The ranges of major carotenoids (μg/g) across the two locations varied from 2.6 to 9.6 for lutein, from 2.1 to 9.7 for zeaxanthin, from 0.8 to 2.9 for β-cryptoxanthin, from 1.4 to 4.1 for β-carotene; with total xanthophylls and provitamin A carotenoids (pVAC) ranging from 5.4 to 17.1 and 1.4 to 4.1 μg/g, respectively. Tannins content ranged from 2.1 to 7.3 mg/g, while phytate ranged from 0.4 to 7.1%. Starch, free sugar, amylose and amylopectin ranged from 40.1 to 88.9%, 1.09 to 6.5%, 15.0 to 34.1%, and 65.9 to 85.0%, respectively. Peak and final viscosities ranged from 57.8 to 114.9 and 120.3 to 261.6 Rapid Visco Units (RVU), respectively. Total xanthophylls, β-carotene, tannins, phytate, sugar, amylose and amylopectin levels, as well as peak and final viscosities, varied significantly (p &lt; 0.05) across the hybrids. Amylose was significantly correlated (p &lt; 0.05) with total xanthophylls, β-carotene, pVAC, phytate and pasting temperature (r = 0.3, 0.3, 0.4, 0.3, 0.3, respectively), but starch significantly correlated with tannins (r = 0.3). Hence, the Striga-resistant yellow-orange maize hybrids have a good combination of bioactive constituents, carbohydrate profile and pasting properties, which are partly influenced by hybrid.


2016 ◽  
Vol 5 (5) ◽  
pp. 67
Author(s):  
Victoria G. Aguilar-Raymundo ◽  
Jorge F. Vélez-Ruíz

Considering the nutritional and functional characteristics of chickpea, flours of two varieties of chickpea (“Blanco Noroeste” and “Costa 2004”) were prepared to know the effect of cooking. Thus the objective of this study was to compare their physicochemical and functional properties in both, raw and cooked flours. Physical properties of the grain, for the two varieties were similar, whereas the physicochemical and functional properties of the flours exhibited differences as a function of the variety and the processing. The chickpea cooked flours showed lower lightness and higher redness and yellowness with respect to raw flours. The proximal composition of cooked flours presented significant differences in fat (5.98% - 6.09%) and moisture contents (0.48% - 0.54%) with respect to raw flours. The particle size distribution determined for the raw and cooked flours samples, indicated a unimodal behavior with a wide distribution. The water absorption capacity and oil capacity showed significant difference among flour varieties. For pasting properties, a higher viscosity was measured for Costa 2004 (380 cP) and Blanco Noroeste (272 cP) raw flours, raw flour exhibited better pasting properties than cooked flours. 


2020 ◽  
pp. 38-47
Author(s):  
Obomeghei, Abdulkareem Adamu ◽  
Ebabhamiegbebho, Peter Akhere

Successful use of non-wheat flours for snacks production depends on their functional and pasting properties. The use of orange fleshed sweet potato and red Bambara groundnut flour blends for snack production have not been explored. The objective of this work was to formulate flour blends using orange fleshed sweet potato and red Bambara groundnut and to evaluate their proximate compositions and processing properties for possible application in the production of high protein and pro-vitamin A enriched  snacks for consumers especially children in developing countries. Flour blends were formulated in ratio 60:40, 50:50, 40:60, 30:70 (orange fleshed sweet potato to red bambara groundnut). The protein and fat increased from 12.95±0.05% (60:40) to 16.87±0.02% (30:70) and 2.17±0.03% (60:40) to 3.05±0.04% (30:70) respectively. Ash and carbohydrate decreased from 2.52±0.04% (60:40) to 2.27±0.05% (30:70) and 60.38±0.44% (30:70) to 69.09±0.30% (60:40). The water absorption capacities for the flour blends ranged between 28.03±0.17% and 50.40±0.40%. Oil absorption capacity was between 16.70±0.12% and 31.40±0.13%. Swelling capacities was highest in 30:70 (2.48±0.06%) and lowest in 60:40 (2.13±0.07%). Solubility was between 9.27±0.59% and 11.67±0.70%. Bulk density ranged between 0.77±0.01 g/ml and 0.87±0.02 g/ ml. Peak, breakdown, setback and final viscosities increased from 92.88±3.47 to109.34±0.23; 20.33±3.66 to 21.75±1.17; 32.16±0.84 to 44.59±0.25 and 102.71±1.00 to 132.00±1.06 RVU respectively. This study indicate that the 50% sweet potato and 50% red bambara groundnut flour blend will make a better product judging from its functional and pasting properties compared to other blends but will require a little more energy to cook comparing their pasting temperature and time.


2020 ◽  
Vol 39 (01) ◽  
Author(s):  
Anosike Francis Chidi ◽  
Nwagu Kingsley Ekene ◽  
Ekwu Francis ◽  
Nweke Friday Nwalo ◽  
Nwoba Sunday Theophilus ◽  
...  

Studies were conducted on the chemical, functional, pasting properties of the flour blends and sensory properties of ukpo oka formulated from of maize- African yam bean flour (AYBF) in order to improve the nutritional content of maize and encourage a wider utilization of the legume AYB. Supplementation of maize and African yam flour was done at 100:0, 50:50, 80:20, 60:40 and 20:80 maize: African yam bean flour, respectively. Proximate composition, functional properties, pasting properties of the flour blends was determined and sensory attributes of the products were also evaluated. The result showed that supplementation of maize with African yam bean flour significantly increased the protein, ash and fiber content of the flour blends with values ranging from 3.91 - 11.08%, 2.90 - 6.60%, 0.67 - 1.82% for protein, ash and fiber contents respectively. The protein, ash and fiber contents increased with addition of African yam bean flour while carbohydrate content of maize- African yam bean blends decreased with increase in the level of African yam bean. The values for functional properties ranged from 0.72 – 0.82g/ml, 99.33 – 323.33%, 9.01 – 19.65%, 690.00 - 978.33%, 0.67 – 1.13%, 0.484 – 1.038% for bulk density, foaming capacity, emulsion capacity, swelling capacity, water absorption capacity and oil absorption capacity respectively. Values for pasting properties of the flour blends expressed in rapid visco unit (RVU) ranges from 129.25 – 209.40, 22.55 – 67.93, 60.21 – 124.62 , 145.25 – 247.67 , 83.37 – 84.56 , 5.47 – 5.97 and 87.19 – 141.35 for peak viscosity, break down viscosity, set back viscosity, final viscosity, pasting temperature, peak time and trough respectively. Set back viscosity and final viscosity increased with increase in the levels of African yam bean while break down viscosity decrease with the increase in the levels of African yam bean. The products were highly rated in all sensory attributes evaluated however aroma decreases with increase in the levels of AYBF. Product made from flour blend 50:50 was the most preferred in terms of general acceptability.


2019 ◽  
pp. 1-16
Author(s):  
J. Eke-Ejiofor ◽  
C. U. Awajiogak

The effect of processing methods on the physicochemical, functional, anti-nutrient factors and pasting properties of Mucuna sloanei (ukpo), Brachystegia eurycoma (achi) and Daterium microcarpum (ofor) were assessed using standard methods. Flour from these seeds were produced after boiling and soaking at different time intervals.  The moisture and ash contents of the three soup thickeners ranged between 5.58- 8.92% and 1.14-5.59% with sample B1 (achi boiled for 15 min) and C4 (ofor soaked for 48 h) having the lowest while sample B2 (achi boiled for 30 min) and C1 (ofor boiled for 15 min) having the highest. Crude Fat and fibre contents ranged from 2.90-10.95% and 1.30-14.39% with samples C1 and A1 (ukpo boiled for 15 min) as the highest respectively. Crude protein and carbohydrate contents of soup thickeners ranged between 9.19 -21.31% and 45.01-71.38% with samples A3 (ukpo soaked for 24 h) and B4 (achi soaked for 48 h) as the highest. Sugar and starch contents ranged from 2.61-5.04% and from 69.00-74.27% respectively with sample C4 and A4 (ukpo soaked for 48 h) as the lowest and sample A3 and B3 (Achi soaked for 24 h) as the highest. Amylose content increased with boiling and decreased with soaking which was the reverse amylopectin. Functional properties showed bulk density and dispersibility to range between 0.56-0.76 g/ml and 32.50-48-00% with sample B3 (achi soaked for 24 h) as highest in both cases. Solubility and swelling power ranged from 32.56-107.51% and from 4.61-8.72 g/g with sample A2 (ukpo boiled for 30 min) and A1 having the highest respectively. Foam capacity ranged from 2.50-29.50% with sample C2 (ofor soaked for 48 h) having the lowest and sample A1 having the highest, while the least gelation concentration of the three soup thickeners recorded 2.00% for all the treatments. Water absorption capacity ranged between 0.67-10.46 ml/g with B1 having the lowest and sample C2 having the highest. Antinutritional factors showed that phytate recorded 0.01 g/kg for all the treatments, tannin ranged from 2.22-40.71 mg/kg, oxalate between 3.40-7.90mg/100g and saponin between 2.60-9.18% with different treatments affecting the antinutrients. Free fatty acid, peroxide value, saponification and acid values increased with an increase in treatment time while iodine value decreased as processing time increased. Pasting result showed that treatment and time affected pasting properties with the highest values as peak viscosity 16429RVU, trough viscosity 9231RVU, breakdown 7858RVU, final viscosity 19977RVU and set back viscosity 13004RVU respectively. Peak time and pasting temperature ranged between 1.60-6.10 min and between 50.25-76.18°C for the different treatments. This study shows the need for appropriate treatment and time combination for better nutrient availability and detoxification of these seeds as soup thickeners.


2020 ◽  
pp. 40-48
Author(s):  
J. A. Ayo ◽  
D. M. Atondo

The functional, sensory and cooking characteristics of noodles from blends of Acha-tigernut composite flour were investigated. The flour blends and noodles produced were analyzed for functional properties and cooking characteristics. The tiger nut flour was substituted into acha flour at 5, 10, 15 and 20% to produce Acha-tigernut composite flour which was used with other ingredients (salt and powdered ginger) to produce acha-tigernut based noodles. The functional properties of the flour, sensory and cooking characteristics of the noodles produced were determined. The water absorption capacity and swelling capacity increased from 210.59 to 215.53 (g/g) and 524.43 to 586.57, respectively with increase in tigernut flour. While oil absorption, solubility and bulk density decreases from 209.80 to 192.72 (g/g), 10.17 to 5.19 and 0.79 to 0.61 (g/ml) respectively. The swelling capacity ranged from 524.43 to 586.57 (%) with an increase in tigernut flour. The final viscosity of the samples was found to range from 2833.00to 2201.00 (m2/s). The peak properties decreased from 2680.67 to 1580.33 (RVU). The pasting temperature increases from 82.47to 87.57°C. The addition of tigernut decreased the trough, breakdown and peak time from 1730.67 to 1205.67, 985.67 to 434.67, and 5.84 to 5.71 RVU, respectively. The average mean scores for colour decreased from 6.95 to -6.30(%) While that of taste, flavor, texture and general acceptability increased from 5.55 to 6.60, 5.95 to 6.85 (%), 5.95 to 6.44 (%) and 6.70 to 6.83 (%), respectively, as the percentage of tigernut increased.


2020 ◽  
pp. 9-19 ◽  
Author(s):  
C. R. Abah ◽  
C. N. Ishiwu ◽  
J. E. Obiegbuna ◽  
A. A. Oladejo

Millet is an important nutritious ancient minor cereal food crop. This work reviews the composition, functional properties and food application of millet grains. The review shows that this cereal grains is a good source of carbohydrate and starch, with minute proteins, fat, vitamins and other nutrients. The functional properties of the cereal grains (Millet) was also evaluated and the findings gotten from various authors shows that the grains has a good functional properties in terms of their bulk density, oil absorption capacity, water absorption capacity, least gelatinization temperature and host of others. The pasting properties were also researched on and various authors attested to the potentiality of the grains in terms of the pasting properties. The food applications of the grains was not left out since the basic essence of this review is to see to the betterment of the livelihood of human, as such the various foods that can be produced from these grains were also looked into foods like millet ball “Fura”, tuwo, gruel, alcoholic beverages (like pito, burukutu) and non-alcoholic beverages (like “kunu zaki”) where all examined and conclusively the grains were rich sources of meals.


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