Effects of pH on Nonenzymic Browning during Storage in Apple Juice Concentrate Prepared from Bramley's Seedling Apples |
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| Authors: | DAVID O'BEIRNE |
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| Affiliation: | Author O'Beirne is with the Dept. of Food Science &Technology, An Foras Ta/iintais, Kinsealy Research Centre, Malahide Road, Dublin 17, Ireland. |
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| Abstract: | In Bramley's Seedling, adjustment of juice pH affected darkening in apple juice concentrate during storage in the order pH 2.0 > pH 3.0 > pH 4.0. Darkening was also greater in model systems corresponding to juice at pH 3.0 compared with pH 4.0. The rapid darkening in concentrate of this cultivar appeared to be due to high rates of Maillard browning reactions rather than to other forms of nonenzymic browning. |
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