Comparative study on proximate, functional, mineral and anti-nutrient composition of fermented, defatted and protein isolate of Parkia biglobosa seed

Abstract

The use of plant-derived foods in the prevention, treatment, and management of metabolic diseases especially diabetes has gained prominence; this has been associated with their physicochemical properties. This study was conducted to compare the proximate, functional, mineral, and antinutrient composition of the fermented seeds, the defatted seeds, and the protein isolate from Parkia biglobosa seeds. The results showed that the fermented, defatted, and protein isolate varied in composition within the parameters studied. The proximate analysis revealed that the protein isolate had the highest ash (6.0%) and protein (59.4%) as well as the lowest fat (5.7%) and moisture (5.1%) content when compared to the fermented and defatted samples. In like manner, the functional properties of the protein isolate were relatively better than those of the fermented and defatted samples, with oil absorption capacity of 4.2% and emulsion capacity of 82%. The magnesium and zinc content of the protein isolate were significantly higher when compared with the fermented and defatted samples, while a negligible amount of antinutrient was present in all the samples, with the protein isolate having the lowest quantity. The overall data suggest that the protein isolate had better proximate, mineral, functional, and antinutrient properties when compared to the fermented and defatted samples. Therefore, the synergistic effect of all these components present in the protein isolate from P. biglobosa seed in association with its low carbohydrate and high protein/ash contents could play a vital role in the management of diabetes and its associated complications. 140

Comparative biochemical profile of protein-rich products obtained from industrial rapeseed meal

“…Both protein-rich products, obtained in our study, were rich in microelements with the main elements being Cu (64.29 mg kg (Table 3). The contents of the studied elements in the one or both protein-rich products exceeded the respective values established for protein isolates prepared from soybean (García et al, 1998) and Parkia biglobosa seeds (Ogunyinka et al, 2017). Most probably, the extent of the interaction of microelements with proteins as well as the stability of the respective complexes under the conditions of the isoelectric precipitation contributed to the different contents observed in PI and ASP.…”

Nutritional potential of underutilized gum arabic tree seeds (acacia nilotica) and locust bean seeds (Parkia biglobosa)

“…This may signify that legumes are good sources of magnesium. Although, the value from a study carried out by Ogunyinka et al (2017) is higher than the magnesium content of these seeds. This may be due to the time the study was carried out.…”

“…It is required for a number of biological functions, including proper functioning of the immune system, electron transfer reactions, gene regulation, cell growth and differentiation as well as binding and transport of oxygen (Siddiqui et al, 2014). The values from the fermented seed samples are higher than that of Ogunyinka et al (2017) who carried out a study on fermented P. biglobosa. Magnesium is the only predominant mineral amongst the three seed samples.…”

Comparative Study on Chemical Composition and Antioxidant Activity of Annona Muricata Plant Parts Cultivated in Covenant University, Ota, Ogun State, Nigeria

“…26 Proteins are essential components of diets required for energy generation, maintenance of body tissues and synthesis of enzymes, hormones as well as other substances required for healthy functioning. 27,28 The crude protein content of the leaves and roots shows A. muricata may be used as a natural protein supplement for animals. The protein and fat content of the leaves are higher than the 12.5% and 1.49% reported for Nauclea latifolia leaf but lower than the reported protein (27.74% and 20.72%) content for Vitex doniana and Moringa oleifera leaves respectively.…”