A beetroot juice shot is a significant and convenient source of bioaccessible antioxidants

Peter C Wootton-Beard; Lisa Ryan

doi:10.1016/j.jff.2011.05.007

A beetroot juice shot is a significant and convenient source of bioaccessible antioxidants

Peter C Wootton-Beard, Lisa Ryan

Oxford Brookes University

Research output: Contribution to journal › Article › peer-review

160 Citations (Scopus)

Abstract

The total antioxidant capacity (TAC) and total polyphenol (TP) content of a beetroot juice shot (70 mL) was examined following in vitro digestion. TAC was assessed using the ferric reducing antioxidant power (FRAP) assay and TP content was measured using the Folin Ciocalteu (FC) method (measured as gallic acid equivalents (GAE) before and after an in vitro digestion procedure with simulated gastric (GAS) and duodenal (DUO) phases. The beetroot shot had a high TAC (697.9 ± 1.6 lmol/70 mL) and TP content (68.4 ± 0.3 mg GAE/70 mL). FRAP values increased approximately 3-fold after GAS (2361.2 ± 20.9 lmol/
70 mL) and remained high following DUO (1740.3 ± 21.1 lmol/70 mL). TP content increased 5-fold following GAS (341.6 ± 4.8 mg GAE/70 mL) and remained 3.3-fold higher following DUO (223.2 ± 5.4 mg GAE/70 mL). The beetroot shot delivers a high amount of bioaccessible antioxidants and may be a cost effective and convenient method of increasing antioxidant status.

Original language	English
Pages (from-to)	329-334
Number of pages	6
Journal	Journal of Functional Foods
Volume	3
Issue number	4
Early online date	22 Jun 2011
DOIs	https://doi.org/10.1016/j.jff.2011.05.007
Publication status	Published - 01 Oct 2011
Externally published	Yes

Keywords

beetroot
antioxidants
in vitro digestion
polyphenols
FRAP
folin ciocalteu
vegetable juice
total antioxidant capacity

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title = "A beetroot juice shot is a significant and convenient source of bioaccessible antioxidants",

abstract = "The total antioxidant capacity (TAC) and total polyphenol (TP) content of a beetroot juice shot (70 mL) was examined following in vitro digestion. TAC was assessed using the ferric reducing antioxidant power (FRAP) assay and TP content was measured using the Folin Ciocalteu (FC) method (measured as gallic acid equivalents (GAE) before and after an in vitro digestion procedure with simulated gastric (GAS) and duodenal (DUO) phases. The beetroot shot had a high TAC (697.9 ± 1.6 lmol/70 mL) and TP content (68.4 ± 0.3 mg GAE/70 mL). FRAP values increased approximately 3-fold after GAS (2361.2 ± 20.9 lmol/70 mL) and remained high following DUO (1740.3 ± 21.1 lmol/70 mL). TP content increased 5-fold following GAS (341.6 ± 4.8 mg GAE/70 mL) and remained 3.3-fold higher following DUO (223.2 ± 5.4 mg GAE/70 mL). The beetroot shot delivers a high amount of bioaccessible antioxidants and may be a cost effective and convenient method of increasing antioxidant status.",

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N2 - The total antioxidant capacity (TAC) and total polyphenol (TP) content of a beetroot juice shot (70 mL) was examined following in vitro digestion. TAC was assessed using the ferric reducing antioxidant power (FRAP) assay and TP content was measured using the Folin Ciocalteu (FC) method (measured as gallic acid equivalents (GAE) before and after an in vitro digestion procedure with simulated gastric (GAS) and duodenal (DUO) phases. The beetroot shot had a high TAC (697.9 ± 1.6 lmol/70 mL) and TP content (68.4 ± 0.3 mg GAE/70 mL). FRAP values increased approximately 3-fold after GAS (2361.2 ± 20.9 lmol/70 mL) and remained high following DUO (1740.3 ± 21.1 lmol/70 mL). TP content increased 5-fold following GAS (341.6 ± 4.8 mg GAE/70 mL) and remained 3.3-fold higher following DUO (223.2 ± 5.4 mg GAE/70 mL). The beetroot shot delivers a high amount of bioaccessible antioxidants and may be a cost effective and convenient method of increasing antioxidant status.

AB - The total antioxidant capacity (TAC) and total polyphenol (TP) content of a beetroot juice shot (70 mL) was examined following in vitro digestion. TAC was assessed using the ferric reducing antioxidant power (FRAP) assay and TP content was measured using the Folin Ciocalteu (FC) method (measured as gallic acid equivalents (GAE) before and after an in vitro digestion procedure with simulated gastric (GAS) and duodenal (DUO) phases. The beetroot shot had a high TAC (697.9 ± 1.6 lmol/70 mL) and TP content (68.4 ± 0.3 mg GAE/70 mL). FRAP values increased approximately 3-fold after GAS (2361.2 ± 20.9 lmol/70 mL) and remained high following DUO (1740.3 ± 21.1 lmol/70 mL). TP content increased 5-fold following GAS (341.6 ± 4.8 mg GAE/70 mL) and remained 3.3-fold higher following DUO (223.2 ± 5.4 mg GAE/70 mL). The beetroot shot delivers a high amount of bioaccessible antioxidants and may be a cost effective and convenient method of increasing antioxidant status.

KW - beetroot

KW - antioxidants

KW - in vitro digestion

KW - polyphenols

KW - FRAP

KW - folin ciocalteu

KW - vegetable juice

KW - total antioxidant capacity

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DO - 10.1016/j.jff.2011.05.007

M3 - Article

SN - 1756-4646

VL - 3

SP - 329

EP - 334

JO - Journal of Functional Foods

JF - Journal of Functional Foods

IS - 4

ER -

A beetroot juice shot is a significant and convenient source of bioaccessible antioxidants

Abstract

Keywords

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