Czech J. Anim. Sci., 2022, 67(8):295-317 | DOI: 10.17221/42/2022-CJAS

Marine by-products and insects as a potential chitosan source for ruminant feed additivesReview

Ayu Septi Anggraeni ORCID...1,2, Anuraga Jayanegara3, Erika Budiarti Laconi3, Nur Rochmah Kumalasari3, Ahmad Sofyan4
1 Research Center for Food Technology and Processing, National Research and Innovation Agency (PR TTP-BRIN), Yogyakarta, Indonesia
2 Graduate School of Nutrition and Feed Science, Faculty of Animal Science, Bogor Agricultural University (IPB University), Jalan Agatis Kampus IPB Dramaga, Bogor, Indonesia
3 Division of Nutrition and Feed Technology, Faculty of Animal Husbandry, Bogor Agricultural University (IPB University), Jalan Agatis Kampus IPB Dramaga, Bogor, Indonesia
4 Research Center for Animal Husbandry, National Research and Innovation Agency, Bogor, Indonesia

Chitosan is a hydrophilic polysaccharide produced from chitin that has a wide range of applications. Chitosan has several functions as an anti-microbial, methane reducer, and protein protective agent. Based on this function chitosan has been explored for its potential as a feed additive. Moreover, source and extraction technique have potentially affected the yield and degree of deacetylation (DD) of chitosan products. The present review provides information on various chitosan isolation processes in marine by-products and insects and the result of their DD and yield. Chemical isolation processes are still popular in industries compared with biological processes based on their DD and yield. Chitosan properties and yield from insects are comparable with those of commercial chitosan derived from a marine by-product. The application of chitosan as a feed additive is also highlighted in this review. Moreover, chitosan as a feed additive has the capability to decrease CH4 production, increase propionate production, reduce the acetate/propionate ratio, and improve nutrient utilization efficiency, and animal performance. Chitosan has the potential to be a beneficial natural and plentiful feed additive, particularly for reducing enteric methane emissions.

Keywords: crustacean by-product; insect; chemistry extraction; biology extraction; methane mitigation; productivity enhancer; antimicrobial activity

Published: August 31, 2022  Show citation

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Anggraeni AS, Jayanegara A, Laconi EB, Kumalasari NR, Sofyan A. Marine by-products and insects as a potential chitosan source for ruminant feed additives. Czech J. Anim. Sci. 2022;67(8):295-317. doi: 10.17221/42/2022-CJAS.
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