scholarly journals Evaluation of the Proximate and Functional Properties of Flours from Brown Variety of African Yam Bean (Sphenostylis stenocarpa) Seeds

2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ijeoma M. Agunwah ◽  
Ijeoma A. Olawuni ◽  
Juliana C. Ibeabuchi ◽  
Anthonia E. Uzoukwu ◽  
Serah O. Alagbaoso
Keyword(s):  
Functional Properties ◽  
Protein Composition ◽  
Food Product ◽  
Functional Results ◽  
Protein Isolate ◽  
Protein Concentrate ◽  
African Yam Bean ◽  
Significant Difference ◽  
Food Product Development ◽  
Sphenostylis Stenocarpa

Aim: To create variety of flours through food product development by checking the proximate and functional properties of flours from brown variety of African yam bean (Sphenostylis stenocarpa) seeds. Study Design: This study was made to fit into a one way Analysis of Variance. Place and Duration of Study: The research was carried out at the Department of Food Science and Technology laboratory, Federal University of Technology, Owerri, Nigeria, between July 2017 and September 2018. Methodology: Brown coloured variety of African yam bean seeds were sorted, soaked, dehulled and milled to obtain full fat flour. The full fat flour was further processed to obtain defatted flour, protein isolate and protein concentrate. The different flours were analysed to determine their proximate and functional properties. Results: From the results of the proximate composition, it showed that the protein isolate value 89.1±0.23% was higher than the protein composition of the full fat, defatted and protein concentrates which has 21.8±0.16%, 23.1±0.06% and 61.7±0.21% composition respectively. There were no significant difference (p<0.05) between the protein concentrate, protein isolate, full fat flour and defatted flour. The functional properties revealed high bulk density of (0.50± 0.01) for the defatted flour more than the full fat flour (0.35± 0.10) while the emulsion capacity of the protein concentrate and protein isolate flour was found to be (30.7±0.19%) and (35.3± 0.16%) respectively. Conclusion: The proximate and functional results obtained indicate that the starches from African yam bean will have useful technological properties for many applications both in food industries and in the production industries such as in paper and textile industries. It can also be said that African yam bean represents a source of alternative protein supplement and its protein isolates possess certain characteristics that will aid in protein enrichment for some food products.

scholarly journals In-vitro Antioxidant Capacity, Phytochemical Characterisation, Toxic and Functional Properties of African Yam Bean (Sphenostylis stenocarpa) Seed-Enriched Cassava (Manihot esculenta) Product (Pupuru)

2020 ◽  
pp. 84-98
Author(s):  
Folayemi Janet Isaac-Bamgboye ◽  
Victor Ndigwe Enujiugha ◽  
Matthew Olusola Oluwamukomi
Keyword(s):  
Antioxidant Capacity ◽  
Functional Properties ◽  
Radical Scavenging ◽  
Antioxidant Power ◽  
African Yam Bean ◽  
Significant Difference ◽  
Phytochemical Constituents ◽  
Flour Blends ◽  
Sphenostylis Stenocarpa

Aims: This study aimed at determining the In-vitro antioxidant capacity, characterise phytochemical constituents, assess toxic and functional properties of African yam bean (Sphenostylis stenocarpa) seed-enriched Cassava product (Pupuru) flour blends using standard methods. Methodology: Pupuru flour blends were produced from spontaneously-fermented cassava tubers substituted with African yam bean (Sphenostylis stenocarpa) seed (AYBS) (5% (EP5), 10% (EP10) and 15% (EP15), before toasting, cooling, milling, sieving and packaging. A commercial sample (CP) with 100% cassava and another produced in this study, were used as controls. Results: In-vitro 2,2-Azino-bis (3-ethylbenthiazoline-6-sulphonic acid) (ABTS) and 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging abilities, total flavonoid content (TFC), ferric reducing antioxidant power (FRAP) and total phenol content (TPC) increased significantly (P = .05) as AYBS enrichment levels increased. The commercial and laboratory control samples showed no significant difference (P = .05) in all the antioxidants analysed except DPPH: ABTS (7.61- 12.27%); DPPH (26.34-48.26%); TFC (0.10-0.25 mg CAE/g); FRAP (0.81-2.36 (mg/g) and TPC (15.74- 24.15 mg GAE/g). All the phytochemicals except tannins increased significantly (P = .05) as levels of enrichment with AYBS increased. Tannins, phytates, saponins, alkaloids and oxalates were 1.46 -2.87 (mg/g); 0.85-1.40 mg/100 g; 4.18-13.27 mg/g; 24.89-29.05 mg/g and 1.71-3.23 mg/g, respectively. The toxic constituent revealed that all the samples contained significantly different (P = .05) cyanide ranging from 0.87-2.51 mg/kg which reduced as AYBS level of inclusion increased. The functional properties of the samples were significantly (P = .05) enhanced with AYBS enrichment. Conclusion: Utilisation of AYBS to enrich Pupuru increased its In-vitro antioxidant capacity and phytochemical constituents, reduced the toxic cyanide content enhanced the functional properties, hence, its suitability as a nutraceutical to delay the ageing process and prevent cardiovascular diseases.

scholarly journals The Effect of Abiotic Stresses on the Protein Composition of Four Hungarian Wheat Varieties

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Dalma Nagy-Réder ◽  
Zsófia Birinyi ◽  
Marianna Rakszegi ◽  
Ferenc Békés ◽  
Gyöngyvér Gell
Keyword(s):  
Abiotic Stress ◽  
Protein Content ◽  
Functional Properties ◽  
Crop Production ◽  
Global Climate ◽  
Protein Composition ◽  
Grain Protein Content ◽  
Wheat Varieties ◽  
Significant Difference ◽  
Negative Effect

Global climate change in recent years has resulted in extreme heat and drought events that significantly influence crop production and endanger food security. Such abiotic stress during the growing season has a negative effect on yield as well as on the functional properties of wheat grain protein content and composition. This reduces the value of grain, as these factors significantly reduce end-use quality. In this study, four Hungarian bread wheat cultivars (Triticum aestivum ssp. aestivum) with different drought and heat tolerance were examined. Changes in the size- and hydrophobicity-based distribution of the total proteins of the samples have been monitored by SE- and RP-HPLC, respectively, together with parallel investigations of changes in the amounts of the R5 and G12 antibodies related to celiac disease immunoreactive peptides. Significant difference in yield, protein content and composition have been observed in each cultivar, altering the amounts of CD-related gliadin, as well as the protein parameters directly related to techno-functional properties (Glu/Gli ratio, UPP%). The extent of changes largely depended on the timing of the abiotic stress. The severity of the negative effect depended on the growth stage in which abiotic stress occurred.

scholarly journals Relationship between Salt (NaCl) Stress and Yield Components in Three Varieties of African Yam Bean (Sphenostylis stenocarpa)

2021 ◽  
pp. 14-21
Author(s):  
A. N. Osuagwu ◽  
U. L. Edem
Keyword(s):  
Salt Stress ◽  
Sustainable Use ◽  
Nacl Stress ◽  
Yield Response ◽  
Morphological Attributes ◽  
African Yam Bean ◽  
Stress Region ◽  
Significant Difference ◽  
Number Of Leaves ◽  
Sphenostylis Stenocarpa

Salinity has threatened the existence of many useful and multipurpose legumes such as Sphenostylis stenocarpa. To revert this situation effort must be made towards its sustainable use by encouraging domestication of improved varieties that can thrive in salt stress region. This research study was aimed at establishing the effect of salt-stress on seed germination, morphological attributes and yield response of three ­varieties Sphenostylis stenocarpa. Data were collected from the third-weekly for a period of three months (12 weeks) on plant height and number of leaves. At 12 weeks, data were collected on the following traits: number of flowers per plant, number of pods per plant, length of pod and number of seeds per pod. The data on number of seed germinated was also taken. Data collected were subjected to analysis of variance (ANOVA) and mean were separated using Least Significant Difference (LSD) test. Results obtained revealed that sodium chloride (NaCl+) significantly affected some important morphological traits of Sphenostylis stenocarpa evaluated. All varieties treated at various levels (1 kg/l, 2 kg/l and 3 kg/l) with NaCl performed poorly than those without treatment (control). This study revealed that there was no significant difference amongst all varieties of African yam been treated at 1 kg/l levels of NaCl. There was no significant different (p<0.05) among varieties of African yam bean at 0 kg/l in different morphological parameters evaluated. Salt stress significantly reduced (p<0.05) the germination of African yam bean.

EFFECTS OF ISOLATION CONDITIONS ON THE FUNCTIONAL PROPERTIES OF AFRICAN YAM BEAN (SPHENOSTYLIS STENOCARPA HOCHST. EX A. RICH.) PROTEINS

2012 ◽  
Vol 37 (5) ◽  
pp. 555-567 ◽  
Author(s):  
LAWRENCE A. AROGUNDADE ◽  
CATHERINE O. EROMOSELE ◽  
IGHODALO C. EROMOSELE ◽  
OLADIPO ADEMUYIWA
Keyword(s):  
Functional Properties ◽  
African Yam Bean ◽  
Sphenostylis Stenocarpa

scholarly journals Creating Value of Agro-Industrial Wastes

2018 ◽  
Vol 4 (2) ◽  
pp. 34
Author(s):  
Nafis Khuriyati ◽  
Didik Purwadi ◽  
Ibnu Wahid F.A. ◽  
Kartika Fitriani ◽  
I Putu Eldwin I.D.
Keyword(s):  
Product Development ◽  
Functional Properties ◽  
Food Processing ◽  
Food Production ◽  
Food Product ◽  
Mineral Nutrients ◽  
Industrial Wastes ◽  
Food Processing Industry ◽  
Processing Industry ◽  
Food Product Development

Food processing industry as a kind of agro-industry generates a large amount of waste. These wastes have potential since the contain vitamins, mineral nutrients, and other compounds with functional properties. This paper addresses the wastes generated from processing jackfruit and tuna industries. It was observed that the product development is an important role for creating the value of agro-industrial wastes. The wastes can be used as valuable resources for food production. Jackfruit seed and tuna skin were processed into nutritional foods. Keywords: Agro-Industrial Wastes; Food; Product Development; Value

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