ISSN 2375-1061
African Journal of Agricultural Marketing ISSN 2375-1061 Vol. 11 (1), pp. 001-008, January, 2023. © International Scholars Journals
Full Length Research Paper
An assessment of the preservative potentials of soursop (ANNONAMURICATA) seed oil on plantain and orange juice
Dauda A. O., Salami, K.O., Oyeyinka, S.A., Esan, O.T., Arise, A.K and Asije A.R.
University of Ilorin, Faculty of Agriculture, Department of Home Economics and Food Science, Ilorin, Kwara State, Nigeria.
Accepted 14 November, 2022
Abstract
An assessment of the preservative potentials of seed oil of soursop (ANNONAMURICATA) plant grown in the tropics of West Africa were studied. The seed oil was extracted via Soxhlet extraction method, matured unripe plantain (stage one) selected, while juice was extracted from oranges. Unripe plantain sourced was coated with the extracted oil and orange juice produced was equally treated with 0.3 to 1.5mls of the extracted oil. Phytochemical component and proximate composition of the seed oil, pH and brix of coated plantain, and microbial load of orange juice were determined using standard methods. Results showed antioxidant values to be total soluble phenols (632.91mg/100g), total carotenoid (344.15µg/100g), concentration of tocopherol (360.0µg/100g), ascorbic acid (0.21mg/100g), flavonoid (150.45mg/kg), and anthocyanins (0.01%), while the moisture, ash, crude fat, crude protein, crude fiber and carbohydrate contents were: 52.12%, 1.61%, 5.19%, 9.71%, 1.33% and 30.05% respectively. Microbial load increase of the orange juice was delayed for 3 weeks when compared to control. It has high value for both the bacteria and fungi counts (2.48 log cfu/g and 1.59 log cfu/g respectively), and treated, 1.89 log cfu/g and 0.08 log cfu/g respectively. The oil coating delayed ripening and spoilage of the plantain samples by about 10days.
Keywords: Antioxidant properties, soursop seed oil, microbial load, proximate composition, shelf life, coating.