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    Agar extraction process for Gracilaria cliftonii (Withell, Miller and Kraft, 1994)

    Access Status
    Fulltext not available
    Authors
    Kumar, Vivek
    Fotedar, Ravi
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Kumar, Vivek and Fotedar, Ravi. 2009. Agar extraction process for Gracilaria cliftonii (Withell, Miller and Kraft, 1994). Carbohydrate Polymers. 78 (4): pp. 813-819.
    Source Title
    Carbohydrate Polymers
    DOI
    10.1016/j.carbpol.2009.07.001
    ISSN
    0144-8617
    Faculty
    School of Agriculture and Environment
    Department of Applied Biosciences
    Faculty of Science and Engineering
    Remarks

    The link to the journal’s home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/405871/description#description. Copyright © 2009 Elsevier B.V. All rights reserved

    URI
    http://hdl.handle.net/20.500.11937/48102
    Collection
    • Curtin Research Publications
    Abstract

    Agar extraction process was developed for Gracilaria cliftonii by investigating the effects of various extraction variables and alkali treatments on agar yield and properties. The tested variables were soaking time, soaking temperature, seaweed to water ratio of, extraction temperatures and extraction time. Alkali treatments were carried out in alkali concentrations of 1%, 2%, 3% and 5% in a water bath at 60, 70 and 80 C prior to agar extraction. The results showed that agar yield was significantly affected by all the tested variables. The agar yield was maximised when extraction process was carried out with 1 h soaking time at 30 C with seaweed to water ratio of 1:150 and extracted for 3 h at 100 C. The alkali-temperature combinations significantly influenced agar yield and properties. Irrespective of temperature, alkali treatments at 3% and 5% significantly increased the gel strength.

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