Story: Seaweed

A carrageenan-producing seaweed

A carrageenan-producing seaweed

Carrageenan is an important chemical that is extracted from types of red seaweed. It is used extensively in the food industry as a gelling agent. High-quality carrageenans are produced by this native species, Gigartina atropurpurea. It forms wide leafy blades up to 50 centimetres long and is common on intertidal rocks all around the North Island, northern South Island and Chatham Islands.

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NIWA – National Institute of Water and Atmospheric Research

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How to cite this page:

Maggy Wassilieff, 'Seaweed - Modern uses and future prospects', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/4606/a-carrageenan-producing-seaweed (accessed 14 August 2020)

Story by Maggy Wassilieff, published 12 Jun 2006