Adsorptive capacity of charcoals eaten by Zanzibar red colobus monkeys : Implications for reducing dietary toxins

Colobus monkeys on the African island of Zanzibar eat charcoal from burned trees and lying near kilns, where it is produced for cooking. This behavior may be a learned response for counteracting toxicity due to phenolic and similar compounds that occur in significant concentrations in the Indian alm...

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Published in:International journal of primatology 1997-04, Vol.18 (2), p.235-246
Main Authors: COONEY, D. O, STRUHSAKER, T. T
Format: Article
Language:English
Subjects:
Adsorption
Animal behavior
Animal ethology
Biological and medical sciences
Biology
Charcoal
Colobus
Diet
Food
Fundamental and applied biological sciences. Psychology
Leaves
Mammalia
Mangifera indica
Monkeys & apes
Nutrition
Old World monkeys
Phenols
Primates
Primatology
Procolobus kirkii
Prunus dulcis
Psychology. Psychoanalysis. Psychiatry
Tanzania
Terminalia catappa
Toxins
Vertebrata
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STRUHSAKER, T. T
description Colobus monkeys on the African island of Zanzibar eat charcoal from burned trees and lying near kilns, where it is produced for cooking. This behavior may be a learned response for counteracting toxicity due to phenolic and similar compounds that occur in significant concentrations in the Indian almond (Terminalia catappa) leaves and mango (Mangifera indica) leaves which constitute a major part of their diet. Accordingly, we studied the adsorption of organic materials from hot water extracts of Indian almond and mango leaves by five charcoals collected in Zanzibar. For comparison, we also evaluated three commercial powdered activated charcoals. Three African charcoals collected at kilns adsorbed more organic material than two kinds collected from burned tree stumps. The commercial activated charcoals adsorbed the organic material best, as expected, yet the African kiln charcoals adsorbed surprisingly well. Thus, the hypothesized function of charcoal eating is supported.
doi_str_mv 10.1023/A:1026324703410
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source International Bibliography of the Social Sciences (IBSS); Springer Nature
subjects Adsorption
Animal behavior
Animal ethology
Biological and medical sciences
Biology
Charcoal
Colobus
Diet
Food
Fundamental and applied biological sciences. Psychology
Leaves
Mammalia
Mangifera indica
Monkeys & apes
Nutrition
Old World monkeys
Phenols
Primates
Primatology
Procolobus kirkii
Prunus dulcis
Psychology. Psychoanalysis. Psychiatry
Tanzania
Terminalia catappa
Toxins
Vertebrata
title Adsorptive capacity of charcoals eaten by Zanzibar red colobus monkeys : Implications for reducing dietary toxins
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