Abstract
The objective of this study was to evaluate the potential of paw-paw seeds as a source of edible vegetable oil. Sun-dried seeds (SDS) and oven-dried seeds (ODS) of paw-paw was subjected to Soxhlet extraction using petroleum ether as the solvent. The physicochemical parameters of the oil were investigated. Results revealed the parameters; Oil yield, Acid value, Saponification value, Iodine value, Peroxide value, Melting point and Smoke point were 47.5%, 4.635 mg/g, 32.721 mg/g, 1.269 mg/g, 0.737 mg/g, 10.55 °C, 37.33 °C and 32.1%, 4.208 mg/g, 12.805 mg/g, 0.850 mg/g, 2.337 mg/g, 9.50 °C and 36.34 °C for ODS and SDS oils respectively. The oil from paw-paw seed is a non-drying oil. It is edible and can be used as an edible source of vegetable oils. Its use in soap making is also encouraged. As a waste-to-wealth project, processing paw-paw seeds into oils could serve as a source of income to farmers.
References
[1] B. J. Burro, M. R. Frank, and C. Zhu. Absorption and metabolism and functions of beta B – cryptoxanthin. Nutrition Review, vol 74, pp. 69 – 82, 2016. [2] S. C. Iweka, F. C. Ozioko, E. D. Edafiadhe, and T. F. Adepoju. Bio-oil production from ripe pawpaw seeds and its optimal output: Box-Behnken Design and Machine Learning approach. Scientific African, vol. 21, pp. 18 – 26, 2023. https://doi.org/10.1016/j.sciaf.2023.e01826 [3] R. M. Araujo, H. A. Rodriguez – Basso, M. M. E. Ruiz, and C. N. Aguilar. Avocado by – products: Nutritional and functional properties. Trend in food science and Technology, vol. 80, pp. 51 – 60, 2018. https://doi.org/10.1016/j.tifs.2018.07.027 [4] M. S. Sarjadi, T. C. Ling and M. S. Khan. Analysis and comparison of olive cooking oil and palm cooking oil properties as biodiesel feedstock. Journal of Physics: Conference Series 1358, 012007, 2019.[5] J. F. Ayala-Zavala, V. Vea-Vega, C. Rosas-Dominguez, H. Palafox-Carlos, J. A. VillaRodriguez, and M. W. Siddiqui. Agro-industrial potential of exotic fruit byproducts as a source of food additives. Food Resource International, vol. 44, no. 7, pp. 1866 –1874, 2011. https://doi.org/10.1016/j.foodres.2011.02.021 [6] J. Senrayan, and S. Venkatacham. solvent–assisted extraction of oil from papaya (Carica papaya) seeds, evaluation of its physiochemical properties and fatty – acid composition/ Separation. Science and Technology, vol. 53, pp. 2852 – 2859, 2018. https://doi.org/10.1080/01496395.2018.1480632 [7] C. F. Ajibola, and A. Filani. Storage stability of deep-fried cowpea products (akara) incorporated with soy-flour and Aframomum danielli. British Journal of Applied Science and Technology, vol. 8, no. 2, pp. 204-212, 2015. https://doi.org/10.9734/BJAST/2015/16478 [8] N. Sultana, S. M. Z. Hossain, S. Taher, A. Khan, S. A. Razzak, and B. Haq, B. Modeling and optimization of non-edible papaya seed waste oil synthesis using data mining approaches. South African Journal of Chemical Engineering. Vol. 33, pp. 151–159, 2020. https://doi.org/10.1016/j.sajce.2020.07.009 [9] A. Legesse, T. Motuma, T. Fillipo, W. Adrian, and S. Matthew. Extraction And Characterization of Oil from Trichilia Dregeana (Luya) Seed Beans and Seed Shells. Journal of Applied Science and Environmental Management, vol. 27, no. 3, pp. 607 – 614, 2023. https://doi.org/10.4314/jasem.v27i3.27 [10] R. E. Kukwa, S. A. Shange and A. E. Innocent. Application of Moringa Oleifera oil as Sprouting Suppressants for Irish Potatoes Storage. Journal of Chemical Society of Nigeria, vol. 47, no. 4, pp. 865 – 887, 2022. [11] G. Aladekoyi, A. O. Karimu, and A. O. Jide, A. O. Physico-chemical and antibacteria evaluation of oil extracted from ripe and unripe pawpaw seed (Carica papaya). Research Journal of Food Science and Nutrition, vol. 1, no. 1, pp. 10 – 14, 2016. https://doi.org/10.31248/RJFSN2016.005 [12] A. E. Adeleke, A. P. Onifade, O. E. Isola, A, M. Oke, I. M. Olanipekun, and S. Aghanti. Phytochemicals, Physico-Chemical and Fatty Acid Composition of Oil Extracted from Carica Papaya (Papaw) Seed. Nigerian Journal of Pure & Applied Science, vol. 36, no. 2, pp. 4740 – 4750, 2023. https://doi.org/10.48198/NJPAS/23.B18 [13] F. Anwar, and U. Rashid. Physico-chemical characteristics of Moringa oleifera seeds and seed oil from a wild provenance of Pakistan. Pakistan Journal of Botany; vol. 39. no. 11, pp. 1443–1453, 2007. [14] J. K. Korang, J. M. Asomaning, S. Ibrahim, D. A. and Ofori. Extraction and Characterization of Vegetable Oil from 20 Accessions of Allanblackia parviflora Seeds in Ghana. Agricultural and Food Science Journal of Ghana, vol. 15, pp. 1543 – 1552, 2022. https://doi.org/10.4314/afsjg.v15i1.4 [15] Codex Alimentarius.Named Vegetable Oils 8, Codex Standard 2001; 210. [16] D. M. T. Ngoc, H. M. Chi, P. A. N. Viet, C. N. D. Quyen, and L. P. T. Kim. Extracting seed oil and phenolic compounds from papaya seeds by ultrasound-assisted extraction method and their properties. Chemical Engineering Transactions, vol. 78, pp. 493 – 498, 2020.