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Alginate Profile, Antioxidant, and Antibacterial Activities of Brown Algae Sargassum cristaefolium from Pane Island, North Sumatera

Jurnal Ilmiah Perikanan dan Kelautan · Vol. 15 No. 2 (2023) · hlm. 331–345

DOI
10.20473/jipk.v15i2.41621
ISSN
2528-0759, 2085-5842
Terbit
2023-04-30
Penerbit
Faculty of Fisheries and Marine Universitas Airlangga
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc-sa/4.0

Abstrak

Highlight Research Alginate content produced by Sargassum cristaefolium in three different parts of the thallus has food grade quality. The alginate chemical profile of cristaefolium in three different thallus part had a significant effect. Antioxidant activity of cristaefolium extract was in the moderate category. Antibacterial activity of cristaefolium extract against aquatic pathogenic bacteria has moderate and strong effectiveness. Abstract Sargassum, an ubiquitous variant of algae in North Sumatera, has grown wildly on Pane Island with the type, namely, Sargassum cristaefolium. This study aimed to determine the characteristics of alginates, antioxidative ability, and antibacterial ability. Alginate was extracted via the acid pathway method from three different parts of the thallus and was then characterized physically and chemically. Antioxidant activity using the DPPH method and the total phenol with a gallic acid standard. Antibacterial activity using the well diffusion method. The characteristics of alginate include yields of 53.61% ± 2.21%, viscosity of 11.44 ± 1.54 cPs, whiteness index of 56.55 ± 1.71, acidity degrees of 9.83 ± 0.34, moisture content of 9.63% ± 0.53%, ash content of 23.17% ± 0.76%, Pb and Hg levels of 0.065 ± 0.01 ppm, 0.034 ± 0.003 ppm. The IC50 value of antioxidant activity being 134.408 ± 0.04 ppm, moderate category. Extract concentration of 8 mL can inhibit the E. coli and E. tarda with inhibitions of 10.60 ± 0.72, 14.03 ± 2.97 mm. Although other pathogenic bacteria can be inhibited optimally at an extract concentration of 10 mL with inhibitions of 11.03 ± 1.43, 9.07 ± 0.20, 11.20 ± 1.56, 12.80 ± 3.01 mm. Alginates isolated in S.cristaefolium from Pane Island met food grade standards except for its viscosity. S. cristaefolium from Pane Island is a moderate antioxidant. Likewise, its antibacterial ability was moderate however it was strong against aquatic gram-negative bacteria.

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  • Universitas Sumatera Utara
  • Universitas Teuku Umar
  • Universitas Syiah Kuala
  • Tokyo University of Agriculture
  • Institute of Geography
  • Diponegoro University
  • IPB University
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Rekan penulisOrganisasiArtikel bersama
Rusdi LeidonaldUniversitas Sumatera Utara4
Mohammad BasyuniUniversitas Sumatera Utara3
Rizka AmeliaUniversitas Sumatera Utara3
Yuntha BimantaraUniversitas Sumatera Utara3
Ramadhona SavilleTokyo University of Agriculture2
‪Ahmad MuhtadiUniversitas Sumatera Utara2
Julia Syahriani HasibuanUniversitas Sumatera Utara2
LAURA F. M. SIMAMORAUniversitas Sumatera Utara2
Eddie Satria HartonoUniversitas Sumatera Utara2
ERI YUSNIUniversitas Sumatera Utara2
Rizky Febriansyah SiregarIPB University2
Muhammad Rakezza Rifzy RifzyUniversitas Sumatera Utara2
Fazril SaputraUniversitas Teuku Umar1
Dini IslamaUniversitas Teuku Umar1
Ika KusumawatiUniversitas Teuku Umar1
Sri WahyuniUniversitas Teuku Umar1
Ruth Innel GeaUniversitas Teuku Umar1
Nuraini LimbongUniversitas Teuku Umar1
Deri AnggrainiUniversitas Teuku Umar1
Ulviyya MammadovaInstitute of Geography1
Widodo Farid Ma’rufDiponegoro University1
Z A HarahapUniversitas Sumatera Utara1
Nurul NajmiUniversitas Teuku Umar1
Nanda Muhammad RaziUniversitas Syiah Kuala1
Ananingtyas S DarmariniUniversitas Teuku Umar1
Samsul KaharAfiliasi tidak diketahui1
Arida SusilowatiUniversitas Sumatera Utara1
Hatika HairaniUniversitas Sumatera Utara1
Tadashi KajitaTropical Biosphere Research Center, University of the Ryukyus1

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Sumber metadata: OAI-PMH (metadata jurnal) https://e-journal.unair.ac.id/index.php/JIPK/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Alginate Profile, Antioxidant, and Antibacterial Activities of Brown Algae Sargassum cristaefolium from Pane Island, North Sumatera</dc:title>
	<dc:creator>Dewinta, Astrid Fauzia</dc:creator>
	<dc:creator>Susetya, Ipanna Enggar </dc:creator>
	<dc:creator>Khairunnisa, Khairunnisa</dc:creator>
	<dc:creator>Suriani, Mai </dc:creator>
	<dc:creator>Addina, Syahira </dc:creator>
	<dc:creator>Fadhilah, Amanatul </dc:creator>
	<dc:subject xml:lang="en-US">Alginate</dc:subject>
	<dc:subject xml:lang="en-US">Antibacterial</dc:subject>
	<dc:subject xml:lang="en-US">Antioxidant</dc:subject>
	<dc:subject xml:lang="en-US">Phytochemical</dc:subject>
	<dc:subject xml:lang="en-US">Sargassum cristaefolium</dc:subject>
	<dc:description xml:lang="en-US">Highlight Research

Alginate content produced by Sargassum cristaefolium in three different parts of the thallus has food grade quality.
The alginate chemical profile of  cristaefolium in three different thallus part had a significant effect.
Antioxidant activity of  cristaefolium extract was in the moderate category.
Antibacterial activity of  cristaefolium extract against aquatic pathogenic bacteria has moderate and strong effectiveness.

Abstract
Sargassum, an ubiquitous variant of algae in North Sumatera, has grown wildly on Pane Island with the type, namely, Sargassum cristaefolium. This study aimed to determine the characteristics of alginates, antioxidative ability, and antibacterial ability. Alginate was extracted via the acid pathway method from three different parts of the thallus and was then characterized physically and chemically. Antioxidant activity using the DPPH method and the total phenol with a gallic acid standard. Antibacterial activity using the well diffusion method. The characteristics of alginate include yields of 53.61% ± 2.21%, viscosity of 11.44 ± 1.54 cPs, whiteness index of 56.55 ± 1.71, acidity degrees of 9.83 ± 0.34, moisture content of 9.63% ± 0.53%, ash content of 23.17% ± 0.76%, Pb and Hg levels of 0.065 ± 0.01 ppm, 0.034 ± 0.003 ppm. The IC50 value of antioxidant activity being 134.408 ± 0.04 ppm, moderate category. Extract concentration of 8 mL can inhibit the E. coli and E. tarda with inhibitions of 10.60 ± 0.72, 14.03 ± 2.97 mm. Although other pathogenic bacteria can be inhibited optimally at an extract concentration of 10 mL with inhibitions of 11.03 ± 1.43, 9.07 ± 0.20, 11.20 ± 1.56, 12.80 ± 3.01 mm. Alginates isolated in S.cristaefolium from Pane Island met food grade standards except for its viscosity. S. cristaefolium from Pane Island is a moderate antioxidant. Likewise, its antibacterial ability was moderate however it was strong against aquatic gram-negative bacteria.</dc:description>
	<dc:publisher xml:lang="en-US">Faculty of Fisheries and Marine Universitas Airlangga</dc:publisher>
	<dc:date>2023-04-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>text/xml</dc:format>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://e-journal.unair.ac.id/JIPK/article/view/41621</dc:identifier>
	<dc:identifier>10.20473/jipk.v15i2.41621</dc:identifier>
	<dc:source xml:lang="en-US">Jurnal Ilmiah Perikanan dan Kelautan; Vol. 15 No. 2 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN; 331-345</dc:source>
	<dc:source>2528-0759</dc:source>
	<dc:source>2085-5842</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://e-journal.unair.ac.id/JIPK/article/view/41621/41083</dc:relation>
	<dc:relation>https://e-journal.unair.ac.id/JIPK/article/view/41621/25753</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 Jurnal Ilmiah Perikanan dan Kelautan</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-sa/4.0</dc:rights>
</oai_dc:dc>