INFLUENCE OF CHEMICAL TREATMENT ON QUALITY OF CUT APPLE (cv. JONAGORED)

The quality of a new variety of apple, 'Jonagored', after peeling and cutting was evaluated during ten days of storage in air at 4C. The objective was to evaluate the shelf-life of apple cubes by detecting the limiting parameter and to test the influence of different chemical dips on the cut apple quality with the aim of extending shelf-life. Color, i. e. browning at the cut surface, was found to be the critical quality parameter determining the shelf-life of the cut apple to less than three days. There were no significant differences between the dip treatments in measurements of CIE values. When apple cubes were treated with ascorbic acid, ascorbic acid plus calcium chloride or ascorbic acid plus calcium chloride and citric acid, the 0.75% ascorbic acid dip was found to be the most effective preservation treatment in terms of reducing color change of the cut surface. Both 0.75% ascorbic acid and 0.75% ascorbic acid plus 0.75% calcium chloride inhibited the loss of firmness of apple cubes. When citric acid was added to the dip treatment, there were color changes similar to those of the control.

[1]  J. Ponting,et al.  REFRIGERATED APPLE SLICES: PRESERVATIVE EFFECTS OF ASCORBIC ACID, CALCIUM AND SULFITES , 1972 .

[2]  H. Bolin,et al.  Physicochemical Changes and Treatments for Lightly Processed Fruits and Vegetables , 1989 .

[3]  M. Y. Coseteng,et al.  Changes in Apple Polyphenoloxidase and Polyphenol Concentrations in Relation to Degree of Browning , 1987 .

[4]  Gerald M. Sapers,et al.  Measurement of Enzymatic Browning at Cut Surfaces and in Juice of Raw Apple and Pear Fruits , 1987 .

[5]  Gustavo V. Barbosa-Cánovas,et al.  Control of Browning During Storage of Apple Slices Preserved by Combined Methods. 4-Hexylresorcinol as Anti-Browning Agent , 1993 .

[6]  M. A. Stevens,et al.  An Approach To Sensory Evaluation Of Horticultural Commodities , 1980, HortScience.

[7]  G. M. Sapers,et al.  Application of browning inhibitors to cut apple and potato by vacuum and pressure infiltration. , 1990 .

[8]  C. R. Santerre,et al.  Ascorbic Acid/Citric Acid Combinations in the Processing of Frozen Apple Slices , 1988 .

[9]  Z. Kertesz,et al.  IDENTIFICATION OF CALCIUM PECTATE AS THE TISSUE‐FIRMING COMPOUND FORMED BY TREATMENT OF TOMATOES WITH CALCIUM CHLORIDE , 1941 .

[10]  M. S. Brewer,et al.  INFLUENCE OF NACL LEVEL AND FREEZING ON ACTIN AND MYOSIN CONTENT OF EXUDATE FROM CHUNKED AND FORMED LAMB ROASTS , 1986 .

[11]  Chang Yong Lee,et al.  Apple cultivar variations in response to heat treatment and minimal processing , 1993 .

[12]  B. P. Klein,et al.  RELATIONSHIPS BETWEEN SENSORY QUALITY ATTRIBUTES AND KERNEL CHEMICAL COMPOSITION OF FRESH‐FROZEN SWEET CORN , 1994 .

[13]  Chang Yong Lee,et al.  Quality of Minimally Processed Apple Slices from Selected Cultivars , 1993 .