Evaluation of Nutritional Composition and Chlorophyll Content of Okra Accessions

Onobo Y. I., Abdulazeez B. O., Isah J. O., Aiyegbusi M. A., Aina G. E.

Abstract


Okra (Abelmoschus esculentus [L.] Moench) is an important vegetable cultivated for the edibility of the fruit and the leaves as sources of vitamins, carbohydrate and protein in nearly all developing countries. In view of its importance, the genetic variability among some accessions of the crop was assessed for the improvement of its qualitative and quantitative traits. A total of twenty (20) accessions were obtained from National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan. The accessions were evaluated for agro-morphological and yield parameters using a randomised complete block design (RCBD) with three replicates each. The nutritional and chlorophyll content were carried out under laboratory condition. Significant (p < 0.05) variation was observed in most of the parameters studied. The proximate compositions revealed that accession NGB00396 had the highest moisture content (18.22%), oil content (21.23%) and crude fibre (25.40%) but least in Nitrogen free extract (7.76%). Accessions NGB00469 and NGB00298 produced highest value in crude protein and nitrogen free extract contents with the value of 32.38% and 41.30% respectively. Highest chlorophyll a (22.72 mg/g) and b (18.49 mg/g) content was observed in NGB00331. Therefore, the high variability observed among the accessions for all the parameters studied indicate high genetic diversity in the crop. These variations however might be due to difference in their genetic makeup and environmental factors which can be exploited in further studies, notably, molecular characterization to ascertain the genetic bases in them and to arrange these accessions into suitable groups.


Full Text:

PDF

References


Adetuyi, F. O. & Komolafe, E. A. (2011). Effect of the addition of okra seed (Abelmoschus esculentus) flour on the antioxidant properties of plantain Musa paradisiaca flour. Annual Research & Review in Biology, 1(4), 143-152.

Ahiakpa, J. K., Kaledzi, P. D., Adi, E. B., Peprah, S. & Dapaah, H. K. (2013). Genetic diversity, correlation and path analyses of okra (Abelmoschus spp. (L.) Moench) germplasm collected in Ghana. International Journal of Development and Sustainability, 2(2), 1396-1415.

AOAC (Association of Official Analytical Chemist) (2003). Official Methods of Analysis of the association of official’s analytical chemists (17th ed.). Arlington, Virginia. 45-54.

Arnon, D. I. (1949). Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris. Plant Physiology. Volume 24, pp. 1-15.

Benchasri, S. (2011). Screening for yellow vein mosaic virus resistance and yield loss of okra under field conditions in Southern Thailand. Journal of Animal & Plant Sciences, 12(3), 1676-1686.

Rawat, R., Chittora, A., & Kumar, A. (2020). Review on okra (Abelmoschus esculentus (L.) Moench) production and its health benefits. Rwanda Journal of Engineering, Science, Technology and Environment, 3(1), 1–10.

Das, S., Chattopadhyay, A., Chattopadhyay, S. B., Dutta, S. & Hazra, P. (2012). Genetic parameters and path analysis of yield and its components in okra at different sowing dates in the Gangetic plains of eastern India. African Journal of Biotechnology, 11(95), 16132-16141.

Falusi, O. A., Dangana, M. C., Daudu, O. A. Y., & Teixeira da Silva, J. A. (2012). Studies on morphological and yield parameters of three varieties of Nigerian okra [Abelmoschus esculentus (L.) Moench]. African Journal of Agricultural Research, 7(45), 6055–6060.

Muñoz-Huerta, R. F., Guevara-Gonzalez, R. G., Contreras-Medina, L. M., Torres-Pacheco, I., Prado-Olivarez, J. & Ocampo-Velazquez, R. V. (2013). A review of methods for sensing the nitrogen status in plants: advantages, disadvantages and recent advances. sensors, 13(8), 10823-10843.

Nwachukwu, E. C., Nulit, R. & Go, R. (2014). Nutritional and biochemical properties of Malaysian okra variety. Advancement in Medicinal Plant Research, 2(1), 16-19.

Nwangburuka, C. C., Denton, O. A., Kehinde, O. B., Ojo, D. K. & Popoola, A. R. (2012). Genetic variability and heritability in cultivated okra [" Abelmoschus esculentus"(L.) Moench]. Spanish journal of agricultural research, 10(1), 123-129.

Okanya, A. J., Audu, S. S. & Igwe, O. E. (2021). Evaluation of the nutritional quality and phytochemical properties of okra (Abelmoschus esculentus L.) seed flour. Nigerian Research Journal of Chemical Sciences, 9(2), 296–305.

Pathak, D. V., Singh, S. & Saini, R. S. (2013). Impact of bio-inoculants on seed germination and plant growth of guava (Psidium guajava). Journal of Horticulture and Forestry, 5(10), 183-185.

Pérez-Patricio, M., Camas-Anzueto, J. L., Sanchez-Alegría, A., Aguilar-González, A., Gutiérrez-Miceli, F., Escobar-Gómez, E. & Grajales-Coutiño, R. (2018). Optical method for estimating the chlorophyll contents in plant leaves. Sensors, 18(2), 650.

Salama, A. M., Ragab, A. A., Ahmed, M. A. & Abd-Aleem, I. I. (2023). Okra seed protein isolate: Functional properties. Journal of Agriculture, Food and Environment, 4(4), 1–9.

Sanjeet, K., Sokona, D., Adamou, H., Alain, R. & Dov, P. (2010). Okra (Abelmoschus spp.) in West and Central Africa: Potential and progress on its improvement. African Journal of Agricultural Research, 25, 3590-3598.

Sreenivas, S. S. (2024). Okra (Abelmoschus esculentus L. Moench) as a nutraceutical – A concise review on health benefits. International Journal of Science and Healthcare Research, 9(4).

Ukubuiwe, A. C., Olayemi, I. K. & Jibrin, A. I. (2016). Genetic variations in bionomics of Culex quinquefasciatus (Diptera: Culicidae) mosquito population in Minna, North Central Nigeria. International Journal of Insect Science, 8, IJIS-S32516.

VarmuDy, V. (2011). Need to boost okra exports. Facts for You, 31(5), 21-23.

Yusif, B. B., Bich, K. A., Joshua, O. & Ovye, A. (2024). Comparative study of the proximate, anti-nutritional and mineral compositions of two species of processed and fresh okra pods. Research Journal of Food Science and Quality Control, 10(6), 1–11.


Refbacks

  • There are currently no refbacks.