The effect of (+)-catechin on total phenolic content (TPC) and antioxidant properties in low-fat hard cheese were examined over a 90-day ripening period at 8 degrees C. Antioxidant activity (AA) in cheese was measured by ferric reducing antioxidant power, oxygen radical absorbance capacity (ORAC) and 2,2-diphenyl-1-picrylhydrazyl assays and compared with TPC. Catechin retention coefficients in cheese curds were in the range of 0.63-0.75 and decreased the pH of cheese without affecting protein, fat or moisture content. Both TPC and AA increased during the 90-day ripening period. Oxygen radical absorbance capacity was the most suitable technique for evaluating AA in cheese due to the high correlation with TPC and suitability in both lipophilic and hydrophilic systems.
机构:
Univ Otago, Dept Food Sci, POB 56, Dunedin 9054, New Zealand
Riddet Inst, Private Bag 11 222, Palmerston North 4442, New ZealandUniv Otago, Dept Food Sci, POB 56, Dunedin 9054, New Zealand
Rashidinejad, Ali
Birch, E. John
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Univ Otago, Dept Food Sci, POB 56, Dunedin 9054, New ZealandUniv Otago, Dept Food Sci, POB 56, Dunedin 9054, New Zealand
Birch, E. John
Everett, David W.
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Riddet Inst, Private Bag 11 222, Palmerston North 4442, New Zealand
Calif Polytech State Univ San Luis Obispo, Dept Anim Sci, Dairy Innovat Inst, San Luis Obispo, CA 93407 USAUniv Otago, Dept Food Sci, POB 56, Dunedin 9054, New Zealand
机构:
Utah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USAUtah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USA
Wadhwani, R.
McManus, W. R.
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Utah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USAUtah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USA
McManus, W. R.
McMahon, D. J.
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Utah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USAUtah State Univ, Dept Nutr Dietet & Food Sci, Western Dairy Ctr, Logan, UT 84322 USA
机构:
S Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USAS Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USA
Kommineni, A.
Amamcharla, J.
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S Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USAS Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USA
Amamcharla, J.
Metzger, L. E.
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S Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USAS Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USA