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Bioactive profile of borno brown Vigna unguiculata grains as influenced by pre-harvest synthetic chemicals

Food Bioscience 2022年第1期45卷 223-231页

作者： Temitope Omolayo Fasuan Nneka Nkechi Uchegbu Titilope Modupe Olagunju oyenike olubunmi falola Department of Animal Health and Production Technology Federal College of Animal Health and Production TechnologyIbadanNigeria Department of Food Science and Technology University of NigeriaNsukkaNigeria Department of Agricultural and Environmental Engineering Obafemi Awolowo UniversityIle-IfeNigeria

This study investigated the impact of pre-harvest synthetic chemical treatments on the post-harvest bioactive contents,pasting,colour,and thermal properties of borno brown V.unguiculata(L.)Walp grains.Seeds of borno brown V.unguiculata(L.)Walp was planted on an already ploughed,harrowed and ridged plot of land with a portion cultivated as organic and another non-organic.After 90 days,mature grains were harvested and analyzed using standard procedures.Results showed that a total of 44.33 g bioactive compounds/100g grain was present in the organic borno brown V.unguiculata grains whereas,20.56 g bioactive compounds/100g grain was present in the non-organic(control).The identified bioactive compounds in the organic grains included[heneicosane(4.50g/100g grain)];[12-Methyl-E,E-2,13-octadecadien-1-ol(4.09/100g grain)];[3-(2-Hydroxy-6-methylphenyl)-4(3H)-quinazolinone(7.40 g/100g grain)];[Methaqualone(9.08 g/100g grain)].The non-organic contained[heneicosane(4.07g/100g grain)];[3-(2-Hydroxy-6-methylphenyl)-4(3H)-quinazolinone(5.09 g/100g grain)];[Methaqualone(10.61 g/100g grain)].Flavonoids,alkaloids,total phenolic,2,2-diphenyl-1-picryl-hydrazl(DPPH)and ferric ion reducing antioxidant power(FRAP)contents of the organic grains were 19 mgRE/100g,3.40 mg/100g,1550 mgGAE/100g,2840μmolTEAC/100g,and 20.08 mmol Fe^(2+)/100g,respectively.The non-organic grains had flavonoids(11.31 mgRE/100g),alkaloids(1.86 mg/100g),total phenolic(1110 mgGAE/100g),DPPH(1779μmolTEAC/100g)and FRAP(12.24 mmol Fe^(2+)/100g).The peak viscosity of 111.52 RVU,final viscosity(141.25 RVU)and pasting temperature(82.01℃)were obtained for the organic grains while non-organic had peak viscosity of 93.10RVU,final viscosity(95.20 RVU)and pasting temperature(80.10℃).The colour parameters L^(*),a^(*),b^(*)and ΔE were 73.10,0.68,14.47 and 12.98 for the organic and 84.25,0.30,21.10,and 0.00,respectively for non-organic grains.The thermal property showed enthalpy(ΔH)and peak temperature(T_(p))of 3.12 J/g and 78.25℃ for organic,and 2.14 J/g and 76.28℃ for non-organ

关键词： Borno brown Vigna unguiculata grains Organic Bioactive compounds Phenolic compound profile Antioxidant activities Pasting property

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