African Journal of Agricultural Research
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Article Number - 79E3CFA66573


Vol.12(44), pp. 3189-3197 , November 2017
https://doi.org/10.5897/AJAR2017.12687
ISSN: 1991-637X


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Full Length Research Paper

Use of house cricket to address food security in Kenya: “Nutrient and chitin composition of farmed crickets as influenced by age”



Carolyne Kipkoech
  • Carolyne Kipkoech
  • Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000-00200, Nairobi, Kenya.
  • Google Scholar
John N. Kinyuru
  • John N. Kinyuru
  • Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000-00200, Nairobi, Kenya.
  • Google Scholar
Samuel Imathiu
  • Samuel Imathiu
  • Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000-00200, Nairobi, Kenya.
  • Google Scholar
Nanna Roos
  • Nanna Roos
  • Department of Nutrition, Exercise and Sports,University of Copenhagen, Rolighedsvej 26, 1958, Frederiksberg C, Denmark.
  • Google Scholar







 Received: 23 August 2017  Accepted: 21 September 2017  Published: 02 November 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


House cricket is currently introduced for scaled-up production in farming systems in Kenya and other parts of the world, as an alternative source of animal proteins. The aim of this study was to assess the nutritional composition in farmed cricket as influenced by age in order to ascertain the optimal harvesting time for possible utilization of crickets in improving child nutrition in Kenya. Sampling was carried out between weeks 4 and 13. The moisture content was analysed by drying method, chitin by sodium hydroxide digestion, protein content by estimation of total nitrogen, crude fat by soxhlet extraction method, ash by muffle furnace incineration, available carbohydrates by subtraction, and energy by calculation method. The crude protein mean ranged from 36.00 to 60.00 g/100 g, chitin 2.20 to 12.40 g/100 g, total lipids 12.00 to 25.00 g/100 g, over the 13 weeks period. Minerals concentration was optimum at week 9, with magnesium 1.30 to 11.30 mg/100 g, calcium 1.40 to 19.70 mg/100 g, and zinc 0.20 to 16.60 mg/100 g. Findings from this study indicate that farmed cricket would be best harvested between weeks 9 and 11, when the protein and mineral content is optimum. Nutrients available in farmed crickets show that farmed crickets can be used in child food ingredients to improve child nutrition.

Key words: Farmed crickets, proximate, protein, fatty acid, omega 3, omega 6, minerals, child nutrition.

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APA Kipkoech, C., Kinyuru, J. N., Imathiu, S., & Roos, N. (2017). Use of house cricket to address food security in Kenya: “Nutrient and chitin composition of farmed crickets as influenced by age”. African Journal of Agricultural Research, 12(44), 3189-3197.
Chicago Carolyne Kipkoech, John N. Kinyuru, Samuel Imathiu and Nanna Roos. "Use of house cricket to address food security in Kenya: “Nutrient and chitin composition of farmed crickets as influenced by age”." African Journal of Agricultural Research 12, no. 44 (2017): 3189-3197.
MLA Carolyne Kipkoech, et al. "Use of house cricket to address food security in Kenya: “Nutrient and chitin composition of farmed crickets as influenced by age”." African Journal of Agricultural Research 12.44 (2017): 3189-3197.
   
DOI https://doi.org/10.5897/AJAR2017.12687
URL http://academicjournals.org/journal/AJAR/article-abstract/79E3CFA66573

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