Study on the extraction of soluble dietary fiber from sunflower seed shells and its antioxidant activity

ZANG Yan-qing; GE De-peng

doi:10.13386/j.issn1002-0306.2015.10.056

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Science and Technology of Food Industry > 2015 > (10): 307-310. > DOI: 10.13386/j.issn1002-0306.2015.10.056

ZANG Yan-qing, GE De-peng. Study on the extraction of soluble dietary fiber from sunflower seed shells and its antioxidant activity[J]. Science and Technology of Food Industry, 2015, (10): 307-310. DOI: 10.13386/j.issn1002-0306.2015.10.056

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Study on the extraction of soluble dietary fiber from sunflower seed shells and its antioxidant activity

College of Food Science, Heilongjiang Bayi Agricultural University

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Received Date: July 30, 2014

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Abstract

Abstract

The optimization of extraction technology of soluble dietary fiber (SDF) in sunflower seed shells and its anti-oxidative activities were studied. Results showed that the optimized extraction conditions were as follows:solid-liquid ratio 1∶30, extraction solvent 9.5% Na OH, extraction temperature 40℃, extraction time 30 min. Under these conditions, the extraction rate of SDF was 21.32%. The SDF showed strong scavenging activities on1, 1-Diphenyl-2-picrylhydrazyl radical (DPPH) , superoxide radical (O2-·) and hydroxyl radical (·OH) methods, the scavenging rates for the radicals were 86.67%, 70.32% and76.33%, respectively, when the concentration was 1.0mg/m L.
- soluble dietary fiber,
- sunflower seed shells,
- extraction,
- free redical,
- antioxidant activity

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