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Anthocyanins in Mesocarp/Epicarp and Endocarp of Fresh Acai (Euterpe oleracea Mart.) and their Antioxidant Activities and Bioavailability
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- AGAWA Sayuri
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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- SAKAKIBARA Hiroyuki
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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- IWATA Rei
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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- SHIMOI Kayoko
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka Global COE Program, University of Shizuoka
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- HERGESHEIMER August
- Abios Co. Ltd.
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- KUMAZAWA Shigenori
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
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Description
We measured anthocyanin levels in fresh açai (Euterpe oleracea Mart.), a native Amazonian palm fruit; cyanidin-3-O-glucoside (C3G) and cyanidin-3-O-rutinoside (C3R) in mesocarp/epicarp portion were 5.49 and 13.0 mg/g extracts, respectively, and these amounts were remarkably higher than that in endocarp. Hydrophilic ORAC assay suggested that açai mesocarp/epicarp extracts had potent antioxidant activity compared to blueberry extract. Following, absorption and excretion of açai anthocyanins were evaluated. After oral administration of açai extracts (400 mg/kg body weight) to rats, C3G and C3R appeared as intact forms in the plasma as maximum amounts of 101.0 ± 55.6 nmol/L at 60 min and 537.0 ± 99.1 nmol/L at 120 min after administration, respectively. Most of these anthocyanins were excreted in urine by 2 h post-administration time. In conclusion, fresh açai contained hydrophilic antioxidants including C3G and C3R, and therefore has strong antioxidant potency especially in the mesocarp/epicarp portion. Upon consumption, açai anthocyanins appeared as intact forms in plasma.
Journal
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- Food Science and Technology Research
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Food Science and Technology Research 17 (4), 327-334, 2011
Japanese Society for Food Science and Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390282679435792640
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- NII Article ID
- 10029564199
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- NII Book ID
- AA11320122
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- ISSN
- 18813984
- 13446606
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed