Extraction of antioxidants from Chlorella sp. using subcritical water treatment

Chlorella sp. microalgae is one of the main source of natural bioactive compounds used in the food and pharmaceutical industries. Subcritical water extraction is the technique that offers an efficient, non-toxic, and environmental-friendly method to obtain natural ingredients. In this work, the extr...

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Main Authors: Zakaria, Siti Maisurah, Mustapa Kamal, Siti Mazlina, Harun, Mohd Razif, Omar, Rozita, Siajam, Shamsul Izhar
Format: Conference or Workshop Item
Language:English
Published: 2017
Online Access:http://psasir.upm.edu.my/id/eprint/61829/1/Extraction%20of%20antioxidants%20from%20Chlorella%20sp.%20using%20subcritical.pdf
http://psasir.upm.edu.my/id/eprint/61829/
https://iopscience.iop.org/article/10.1088/1757-899X/206/1/011001/meta
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Institution: Universiti Putra Malaysia
Language: English
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spelling my.upm.eprints.618292019-02-19T07:11:14Z http://psasir.upm.edu.my/id/eprint/61829/ Extraction of antioxidants from Chlorella sp. using subcritical water treatment Zakaria, Siti Maisurah Mustapa Kamal, Siti Mazlina Harun, Mohd Razif Omar, Rozita Siajam, Shamsul Izhar Chlorella sp. microalgae is one of the main source of natural bioactive compounds used in the food and pharmaceutical industries. Subcritical water extraction is the technique that offers an efficient, non-toxic, and environmental-friendly method to obtain natural ingredients. In this work, the extracts of Chlorella sp. microalgae was evaluated in terms of: chemical composition, extraction (polysaccharides) yield and antioxidant activity, using subcritical water extraction. Extractions were performed at temperatures ranging from 100°C to 300°C. The results show that by using subcritical water, the highest yield of polysaccharides is 23.6 that obtained at 150°C. Analysis on the polysaccharides yield show that the contents were highly influenced by the extraction temperature. The individual antioxidant activity were evaluated by in vitro assay using a free radical method. In general, the antioxidant activity of the extracts obtained at different water temperatures was high, with values of 31.08-54.29 . The results indicated that extraction by subcritical water was effective and Chlorella sp. can be a useful source of natural antioxidants. 2017 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/61829/1/Extraction%20of%20antioxidants%20from%20Chlorella%20sp.%20using%20subcritical.pdf Zakaria, Siti Maisurah and Mustapa Kamal, Siti Mazlina and Harun, Mohd Razif and Omar, Rozita and Siajam, Shamsul Izhar (2017) Extraction of antioxidants from Chlorella sp. using subcritical water treatment. In: 29th Symposium of Malaysian Chemical Engineers (SOMChE) 2016, 1-3 Dec. 2016, Miri Marriott Resort & Spa, Miri, Sarawak, Malaysia. (pp. 1-9). https://iopscience.iop.org/article/10.1088/1757-899X/206/1/011001/meta 10.1088/1757-899X/206/1/012035
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Chlorella sp. microalgae is one of the main source of natural bioactive compounds used in the food and pharmaceutical industries. Subcritical water extraction is the technique that offers an efficient, non-toxic, and environmental-friendly method to obtain natural ingredients. In this work, the extracts of Chlorella sp. microalgae was evaluated in terms of: chemical composition, extraction (polysaccharides) yield and antioxidant activity, using subcritical water extraction. Extractions were performed at temperatures ranging from 100°C to 300°C. The results show that by using subcritical water, the highest yield of polysaccharides is 23.6 that obtained at 150°C. Analysis on the polysaccharides yield show that the contents were highly influenced by the extraction temperature. The individual antioxidant activity were evaluated by in vitro assay using a free radical method. In general, the antioxidant activity of the extracts obtained at different water temperatures was high, with values of 31.08-54.29 . The results indicated that extraction by subcritical water was effective and Chlorella sp. can be a useful source of natural antioxidants.
format Conference or Workshop Item
author Zakaria, Siti Maisurah
Mustapa Kamal, Siti Mazlina
Harun, Mohd Razif
Omar, Rozita
Siajam, Shamsul Izhar
spellingShingle Zakaria, Siti Maisurah
Mustapa Kamal, Siti Mazlina
Harun, Mohd Razif
Omar, Rozita
Siajam, Shamsul Izhar
Extraction of antioxidants from Chlorella sp. using subcritical water treatment
author_facet Zakaria, Siti Maisurah
Mustapa Kamal, Siti Mazlina
Harun, Mohd Razif
Omar, Rozita
Siajam, Shamsul Izhar
author_sort Zakaria, Siti Maisurah
title Extraction of antioxidants from Chlorella sp. using subcritical water treatment
title_short Extraction of antioxidants from Chlorella sp. using subcritical water treatment
title_full Extraction of antioxidants from Chlorella sp. using subcritical water treatment
title_fullStr Extraction of antioxidants from Chlorella sp. using subcritical water treatment
title_full_unstemmed Extraction of antioxidants from Chlorella sp. using subcritical water treatment
title_sort extraction of antioxidants from chlorella sp. using subcritical water treatment
publishDate 2017
url http://psasir.upm.edu.my/id/eprint/61829/1/Extraction%20of%20antioxidants%20from%20Chlorella%20sp.%20using%20subcritical.pdf
http://psasir.upm.edu.my/id/eprint/61829/
https://iopscience.iop.org/article/10.1088/1757-899X/206/1/011001/meta
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