Dipping solutions of AA (Ascorbic Acid), CA (Citric Acid), CaCl2, and
1% chitosan were designed as follows: (1) control sample: deionized
water, (2) 1% chitosan, (3) 2% AA+0.5% CaCl2, (4) 2% AA+0.5% CaCl2+
1% chitosan.
The apple pieces were first dipped into the before four solutions
pH 3.5–4.0 fully immersed by using forceps for 2 min.
Residual solutions of slices were allowed to drip off for 1 min, The
samples were kept at 5 °C until the excess of water was drained. Then
these apple slices were placed on plastic-coated wire racks inside plastic
containers in the conditions of 8 d at 5 °C and 24 h at 20 °C before testing
Dipping solutions of AA (Ascorbic Acid), CA (Citric Acid), CaCl2, and1% chitosan were designed as follows: (1) control sample: deionizedwater, (2) 1% chitosan, (3) 2% AA+0.5% CaCl2, (4) 2% AA+0.5% CaCl2+1% chitosan.The apple pieces were first dipped into the before four solutionspH 3.5–4.0 fully immersed by using forceps for 2 min.Residual solutions of slices were allowed to drip off for 1 min, Thesamples were kept at 5 °C until the excess of water was drained. Thenthese apple slices were placed on plastic-coated wire racks inside plasticcontainers in the conditions of 8 d at 5 °C and 24 h at 20 °C before testing
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