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Effect of high vanillin treatment on storage quality of fresh-cut apples.

Chung, H.-S., Toivonen, P.M.A., and Moon, K.D. (2009). "Effect of high vanillin treatment on storage quality of fresh-cut apples.", Food Science and Biotechnology, 18(3), pp. 636-640.

Abstract

The effect of post-cut vanillin treatment at high concentrations on changes of quality and microorganism in freshcut apples was studied. Apples (Malus domestica Borkh. cv. Fuji) were sliced, treated by dipping in different vanillin solution, 0, 40, 80, and 120 mM, packed in polyethylene bag, and then stored for up to 3 weeks at 4°. Changes in total aerobic bacteria, yeast and molds, browning, soluble solids, and titratable acidity during storage were investigated. Growth of total aerobic bacteria throughout storage was strongly inhibited by vanillin regardless of treatment concentrations. Growth of yeast and molds was inhibited by vanillin of all concentrations until 2 weeks of storage. Levels of browning index, soluble solids, and titratable acidity were not significant difference among the treatment conditions until 2 weeks of storage. However, when stored for 3 weeks, browning index increased more at 80 or 120 mM vanillin, while soluble solids and titratable acidity more be decreased by 120 mM vanillin as compared with other treatment conditions. These results show that the usage of vanillin in processing of fresh-cut apples had a limitation for maintaining quality.

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