Effect of extraction solvent, waste fraction and grape variety on the antimicrobial and antioxidant activities of extracts from wine residue from cool climate
被引:119
作者:
Cheng, Vern Jou
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Univ Otago, Div Sci, Dept Food Sci, Dunedin, New ZealandUniv Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
Cheng, Vern Jou
[1
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Bekhit, Alaa El-Din A.
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Univ Otago, Div Sci, Dept Food Sci, Dunedin, New ZealandUniv Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
Bekhit, Alaa El-Din A.
[1
]
McConnell, Michelle
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Univ Otago, Div Hlth Sci, Dept Microbiol & Immunol, Dunedin, New ZealandUniv Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
McConnell, Michelle
[2
]
Mros, Sonya
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Univ Otago, Div Hlth Sci, Dept Microbiol & Immunol, Dunedin, New ZealandUniv Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
Mros, Sonya
[2
]
Zhao, Jenny
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Lincoln Univ, Agr & Life Sci Div, Canterbury, New ZealandUniv Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
Zhao, Jenny
[3
]
机构:
[1] Univ Otago, Div Sci, Dept Food Sci, Dunedin, New Zealand
[2] Univ Otago, Div Hlth Sci, Dept Microbiol & Immunol, Dunedin, New Zealand
[3] Lincoln Univ, Agr & Life Sci Div, Canterbury, New Zealand
Wine residue (seeds, skin and pomace) from New Zealand were subjected to extraction process using three different solvents [50% aqueous acetone (Ace/w), 50% aqueous ethanol (Eth/w) or 50% aqueous methanol (Meth/w)] in order to study the effect of extraction solvent, fraction and variety on the phenolic profile, antioxidant and antimicrobial activity of the obtained extracts. Ace/w extracts resulted in the highest antioxidant activities (P < 0.05) of the extracts compared to other solvents. Extracts from Pinot noir (PN) were more effective against Staphylococcus aureus and Candida albicans than extracts from Pinot meunier, PM, (P < 0.05). Mixed effects were found for the extraction solvent and the residue fraction on the antimicrobial activities. Compounds that exhibited the highest antimicrobial activity are those reported in literature to be of low or modest antioxidant activity. (C) 2012 Elsevier Ltd. All rights reserved.