Occurrence of natural toxicants in food plants: A mini-review

Aim: To review the occurrence of natural toxicants in plant food and their toxicological implications. Materials and Methods: A search in chemical and CAB abstracts, review of books and available literatures on the subject. Results: While the great importance of plants as a major source of human foo...

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Main Author: Ikechukwu E Ezeagu
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2005-01-01
Series:International Journal of Medicine and Health Development
Subjects:
Online Access:http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2005;volume=10;issue=1;spage=34;epage=42;aulast=Ezeagu;type=0
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author Ikechukwu E Ezeagu
author_facet Ikechukwu E Ezeagu
author_sort Ikechukwu E Ezeagu
collection DOAJ
description Aim: To review the occurrence of natural toxicants in plant food and their toxicological implications. Materials and Methods: A search in chemical and CAB abstracts, review of books and available literatures on the subject. Results: While the great importance of plants as a major source of human food is recognized, the inherent limitations associated with plant-derived food stuffs, as a result of the occurrence of various antinutritional factors and toxicants, is reviewed. The quality and safety of food could be threatened by a host of factors, including a diverse range of natural compounds capable of precipitating deleterious effects in animals. The toxicants include, trypsin (protease) inhibitors, tannins and polyphenols, phytohemagglutinins (lectins), oxalate, phytic acid, cyanogenic glycosides, goitrogens, nitrates/nitrites, saponins, alkaloids and mycotoxins. The toxicological implications of these factors were highlighted. Mycotoxins fron fungi that contaminate staple food grains are a danger to humans and animals alike and their economic importance in international trade is considerable. Conclusion: Presence of antinutrients and toxicants in plant derived-food stuffs is a notable disadvantage as regards their utilization if unprocessed. Plant foods for human consumption should therefore be adequately processed such that toxicity is largely eliminated.
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spelling doaj.art-d86646c03dd643d4bea25763219730d62022-12-22T04:39:24ZengWolters Kluwer Medknow PublicationsInternational Journal of Medicine and Health Development2635-36952005-01-011013442Occurrence of natural toxicants in food plants: A mini-reviewIkechukwu E EzeaguAim: To review the occurrence of natural toxicants in plant food and their toxicological implications. Materials and Methods: A search in chemical and CAB abstracts, review of books and available literatures on the subject. Results: While the great importance of plants as a major source of human food is recognized, the inherent limitations associated with plant-derived food stuffs, as a result of the occurrence of various antinutritional factors and toxicants, is reviewed. The quality and safety of food could be threatened by a host of factors, including a diverse range of natural compounds capable of precipitating deleterious effects in animals. The toxicants include, trypsin (protease) inhibitors, tannins and polyphenols, phytohemagglutinins (lectins), oxalate, phytic acid, cyanogenic glycosides, goitrogens, nitrates/nitrites, saponins, alkaloids and mycotoxins. The toxicological implications of these factors were highlighted. Mycotoxins fron fungi that contaminate staple food grains are a danger to humans and animals alike and their economic importance in international trade is considerable. Conclusion: Presence of antinutrients and toxicants in plant derived-food stuffs is a notable disadvantage as regards their utilization if unprocessed. Plant foods for human consumption should therefore be adequately processed such that toxicity is largely eliminated.http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2005;volume=10;issue=1;spage=34;epage=42;aulast=Ezeagu;type=0antinutritional factorsnatural toxicantsfood plantsreview
spellingShingle Ikechukwu E Ezeagu
Occurrence of natural toxicants in food plants: A mini-review
International Journal of Medicine and Health Development
antinutritional factors
natural toxicants
food plants
review
title Occurrence of natural toxicants in food plants: A mini-review
title_full Occurrence of natural toxicants in food plants: A mini-review
title_fullStr Occurrence of natural toxicants in food plants: A mini-review
title_full_unstemmed Occurrence of natural toxicants in food plants: A mini-review
title_short Occurrence of natural toxicants in food plants: A mini-review
title_sort occurrence of natural toxicants in food plants a mini review
topic antinutritional factors
natural toxicants
food plants
review
url http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2005;volume=10;issue=1;spage=34;epage=42;aulast=Ezeagu;type=0
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