{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T16:20:49Z","timestamp":1791303649202,"version":"4.1.0"},"reference-count":41,"publisher":"AOSIS","issue":"0","license":[{"start":{"date-parts":[[2024,8,29]],"date-time":"2024-08-29T00:00:00Z","timestamp":1724889600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>Background:\u00a0Fruits are excellent sources of micronutrients; hence, their consumption is highly recommended. However, fruit peels, often discarded, despite some being edible have been reported to contain essential nutrients and antioxidants, which contribute to disease prevention and well-being.\n\nAim:\u00a0This study sought to evaluate the micronutrient and antinutrient content of 10 edible fruit peels namely, orange, mango, pineapple, banana, lemon, mandarin, red apple, cucumber, guava and pawpaw peels.\n\nSetting:\u00a0Laboratory analyses of the fruit peels were conducted at the University of Calabar, in a well-ventilated and temperature controlled environment to ensure accurate results.\n\nMethods:\u00a0The research design was quantitative and experimental; laboratory analyses were carried out to determine the minerals, vitamins and antinutrients in fruit peels using AOAC standard methods. Data were analysed using ANOVA on SPSS version 20.0.\n\nResults:\u00a0Calcium was the most predominant of the minerals analysed, with values ranging from 33.12 \u00b1 0.05 mg\/100 g (cucumber peels) to 72.04 \u00b1 0.08 mg\/100 g (mango peels); calcium was followed by magnesium. Mandarin, banana and pineapple peels had statistically similar (p\u00a0&gt; 0.05) content of zinc (about 1.2 mg\/100g), which was significantly (p\u00a0&lt; 0.05) higher than others. Mandarin peels had significantly higher content (100.48 \u00b1 2.03 mg\/100 g) of vitamin C, while cucumber peels recorded the lowest (27.50 \u00b1 0.01 mg\/100 g). The results show significant concentrations of micronutrients such as iron, selenium and vitamin K; among the antinutrients, hydrogen cyanide had the highest concentrations, followed by phytate. The values were within safe limits.\n\nConclusion:\u00a0Therefore, the processing of fruit peels, for use as dietary additives to enrich foods and boost immunity, should be promoted.\n\nContribution:\u00a0The study shows the potential of fruit peels as food additives.<\/jats:p>","DOI":"10.4102\/hsag.v29i0.2682","type":"journal-article","created":{"date-parts":[[2024,8,29]],"date-time":"2024-08-29T03:18:47Z","timestamp":1724901527000},"update-policy":"https:\/\/doi.org\/10.4102\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Micronutrient and antinutrient content of semi-processed fruit peels: Towards boosting immunity"],"prefix":"10.4102","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6691-8269","authenticated-orcid":false,"given":"Eridiong O.","family":"Onyenweaku","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04z6c2n17","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Johannesburg"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1258-9145","authenticated-orcid":false,"given":"Hema","family":"Kesa","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04z6c2n17","id-type":"ROR","asserted-by":"publisher"}],"name":"University of Johannesburg"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2580","published-online":{"date-parts":[[2024,8,29]]},"reference":[{"key":"ref0","doi-asserted-by":"crossref","unstructured":"Aina, O.O., Oyedeji, M.B. & Adegboyega, D.A., 2019, \u2018Phytochemical screening of some selected banana peels of Musa acuminata specie\u2019, International Journal of Agriculture Environment and Biotechnology 4(6), 68\u201378. https:\/\/doi.org\/10.35410\/IJAEB.2019.4460","DOI":"10.35410\/IJAEB.2019.4460"},{"key":"ref1","doi-asserted-by":"crossref","unstructured":"Alfonzo, A.V.M., Isles, C., Geddes, C. & Deighan, C., 2006, \u2018Potassium disorders \u2013 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