Antioxidant activities of by-products of polysaccharide extraction from brown seaweed Colpomenia peregrine

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ROSTAMI Z.; Tabarsa m.; REZAEI M.

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Journal: ELECTRONIC JOURNAL OF FOOD PROCESSING AND PRESERVATION Year:2019 | Volume:10 | Issue:2 Page(s): 151-158

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Title

Antioxidant activities of by-products of polysaccharide extraction from brown seaweed Colpomenia peregrine

Author(s)

ROSTAMI Z. | Tabarsa m. | REZAEI M. | Issue Writer Certificate

Keywords

Colpomenia peregrinaQ1

SeaweedQ3

AntioxidantQ1

PolyphenolQ1

Secondary metabolitesQ1

Abstract

Background and objectives: Seaweed Colpomenia peregrine is a marine brown macro alga from Scytosiphonaceae family. Secondary metabolites, bioactive compounds along with polysaccharides, are located in the cell wall of these algae. Considering the side effects of utilizing synthetic Antioxidants in food industries and the need to search for alternative compounds, performing new studies on Antioxidant properties of these compounds is necessary. Therefore, the aim of the current study is to evaluate the Antioxidant activity of ethanol extracts from Seaweed C. peregrina. Materials and methods: Seaweed was caught from Caspian Sea coastal area and washed with fresh water. Then, samples were dried and pulverized. The ethanol extract of dried Seaweed powder was obtained using 80% ethanol for 4h. Then, extract fractionation was employed using hexane, chloroform, ethyl acetate and water as solvents. The Antioxidant properties of crude and fractions were tested by determining DPPH and ABTS radical scavenging activity, reducing power, total Antioxidant activity and total phenolic content. Results: The extraction yield of ethanol extract from C. peregrina was calculated as 5. 4% (of dried sample). Fractionation of crude extract resulted in four fractions with the highest yield for water fraction (50%) and the lowest yield for ethyl acetate fraction (1%). Evaluation of Antioxidant activity revealed that extract fractionation is effectively capable of producing fractions with higher Antioxidant properties. Among different fractions, ethyl acetate fraction exhibited the highest activity in DPPH radical scavenging (99. 22%) at 1000 μ g/ mL. The highest ABTS radical scavenging activities were obtained for water (99. 71%) and ethyl acetate (96. 30%) fractions. The activities of hexane, chloroform and water fractions were similar to that of crude extract in ferric reducing assay. However, ethyl acetate fraction showed the highest activity in reducing ferric ion (57. 89%) and total Antioxidant assay. The amount of total phenolic content of crude and fractions was calculated between 125 to 278 mg TA/g sample. Conclusion: In general, the results of current study showed that ethanol extract of brown Seaweed C. peregrina contained major bioactive compounds suggesting its potential application in food systems as a natural Antioxidant.

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APA: Copy

ROSTAMI, Z., Tabarsa, m., & REZAEI, M.. (2019). Antioxidant activities of by-products of polysaccharide extraction from brown seaweed Colpomenia peregrine. ELECTRONIC JOURNAL OF FOOD PROCESSING AND PRESERVATION, 10(2 ), 151-158. SID. https://sid.ir/paper/381523/en

Vancouver: Copy

ROSTAMI Z., Tabarsa m., REZAEI M.. Antioxidant activities of by-products of polysaccharide extraction from brown seaweed Colpomenia peregrine. ELECTRONIC JOURNAL OF FOOD PROCESSING AND PRESERVATION[Internet]. 2019;10(2 ):151-158. Available from: https://sid.ir/paper/381523/en

IEEE: Copy

Z. ROSTAMI, m. Tabarsa, and M. REZAEI, “Antioxidant activities of by-products of polysaccharide extraction from brown seaweed Colpomenia peregrine,” ELECTRONIC JOURNAL OF FOOD PROCESSING AND PRESERVATION, vol. 10, no. 2 , pp. 151–158, 2019, [Online]. Available: https://sid.ir/paper/381523/en

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