Extraction and characterization of sodium alginate from brown sea weed

Jocelyn Malini Christmas (2005) Extraction and characterization of sodium alginate from brown sea weed. Universiti Malaysia Sabah. (Unpublished)


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Sodium alginate was extracted from brown seaweed Sargassum sp. collected from Tanjung Simpang Mengayau, Kudat, Sabah. Extraction was carried out at different time (1-24 h) and concentration (0.05-0.50 M) of Na2CO3. The effect of acid (HCI 0.10 M) pretreatment on yield was also investigated. The IR spectra of all the extracts were determined and compared. The results showed that the optimum extraction time was 3 h, while percentage yield increased about five fold for ten-fold increase in Na2CO3 concentration. The alginate yield for 3 h extraction by 0.50 M Na2CO3 was 71.48 %. This yield increased to 79.84 % following acid pretreatment. All extracts exhibited identical IR spectra which showed characteristics absorption bands of sodium alginate.

Item Type: Academic Exercise
Uncontrolled Keywords: brown seaweed, sodium alginate, Na2C03, extraction, acid pretreatment
Subjects: T Technology > TX Home economics > Nutrition. Foods and food supply
Divisions: SCHOOL > School of Science and Technology
Date Deposited: 16 Aug 2013 02:35
Last Modified: 23 Oct 2017 07:33
URI: http://eprints.ums.edu.my/id/eprint/6759

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