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Activity and concentration of polyphenolic antioxidants in apple juice. 2. Effect of novel production methods.
J Agric Food Chem. 2004 May 19; 52(10):2840-8.JA

Abstract

There is a great interest in food components that possess possible health-protecting properties, as is the case with flavonoids. Previous research showed that conventional apple juice processing resulted in juices poor in flavonoids and with a low antioxidant activity. This paper shows that it is possible to improve flavonoid content in juice and its antioxidant activity by applying an alcoholic extraction either on the pulp or on the pomace. The levels of flavonoids and chlorogenic acid in enriched juice were between 1.4 (chlorogenic acid) and 9 (quercetin glycosides) times higher than in conventional apple juice. In enriched juice the antioxidant activity was 5 times higher than in conventional apple juice, with 52% of the antioxidant activity of the originating fruits present. The novel processing method had similar effects for three apple cultivars tested (Elstar, Golden Delicious, and Jonagold). The taste and color of enriched juice were different from those of conventional juice.

Authors+Show Affiliations

Product Design and Quality Management Group, Department of Agrotechnology and Food Sciences, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15137823

Citation

van der Sluis, Addie A., et al. "Activity and Concentration of Polyphenolic Antioxidants in Apple Juice. 2. Effect of Novel Production Methods." Journal of Agricultural and Food Chemistry, vol. 52, no. 10, 2004, pp. 2840-8.
van der Sluis AA, Dekker M, Skrede G, et al. Activity and concentration of polyphenolic antioxidants in apple juice. 2. Effect of novel production methods. J Agric Food Chem. 2004;52(10):2840-8.
van der Sluis, A. A., Dekker, M., Skrede, G., & Jongen, W. M. (2004). Activity and concentration of polyphenolic antioxidants in apple juice. 2. Effect of novel production methods. Journal of Agricultural and Food Chemistry, 52(10), 2840-8.
van der Sluis AA, et al. Activity and Concentration of Polyphenolic Antioxidants in Apple Juice. 2. Effect of Novel Production Methods. J Agric Food Chem. 2004 May 19;52(10):2840-8. PubMed PMID: 15137823.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Activity and concentration of polyphenolic antioxidants in apple juice. 2. Effect of novel production methods. AU - van der Sluis,Addie A, AU - Dekker,Matthijs, AU - Skrede,Grete, AU - Jongen,Wim M F, PY - 2004/5/13/pubmed PY - 2004/7/9/medline PY - 2004/5/13/entrez SP - 2840 EP - 8 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 52 IS - 10 N2 - There is a great interest in food components that possess possible health-protecting properties, as is the case with flavonoids. Previous research showed that conventional apple juice processing resulted in juices poor in flavonoids and with a low antioxidant activity. This paper shows that it is possible to improve flavonoid content in juice and its antioxidant activity by applying an alcoholic extraction either on the pulp or on the pomace. The levels of flavonoids and chlorogenic acid in enriched juice were between 1.4 (chlorogenic acid) and 9 (quercetin glycosides) times higher than in conventional apple juice. In enriched juice the antioxidant activity was 5 times higher than in conventional apple juice, with 52% of the antioxidant activity of the originating fruits present. The novel processing method had similar effects for three apple cultivars tested (Elstar, Golden Delicious, and Jonagold). The taste and color of enriched juice were different from those of conventional juice. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/15137823/Activity_and_concentration_of_polyphenolic_antioxidants_in_apple_juice__2__Effect_of_novel_production_methods_ L2 - https://doi.org/10.1021/jf0306800 DB - PRIME DP - Unbound Medicine ER -