Table 4: Vitamin C present in mango and guava juices before and after concentration and its loss percentage at each assay.

Assay Vacuum (mmHg) T (°C) Time (mim) Vit. C* (mango)
(mg ascorbic acid/100 mL juice)		 Vit C* (guava)
(mg ascorbic acid /100 mL juice)
Initial Last % Loss Initial Last % Loss
1 650 50 45 0.30 ± 0.01 0.19 ± 0.01 34.99 27.99 ± 2.97 23.79 ± 5.94 15.01
2 650 55 45 0.47 ± 0.01 0.23 ± 0.01 51.60 24.84 ± 3.63 18.84 ± 2.42 24.15
3 650 65 45 0.53 ± 0.12 0.20 ± 0.02 62.86 37.83 ± 1.98 23.82 ± 0.99 37.04
4 680 45 60 0.75 ± 0.14 0.38 ± 0.02 49.80 40.44 ± 5.20 33.82 ± 4.17 16.37
5 680 50 45 0.72 ± 0.03 0.25 ± 0.02 65.91 36.75 ± 4.16 27.92 ± 6.24 24.03
6 680 55 45 0.65 ± 0.00 0.15 ± 0.01 77.28 53.81 ± 5.07 32.3 ± 5.07 39.98
7 680 65 30 0.65 ± 0.01 0.15 ± 0.01 77.28 56.22 ± 4.07 25.22 ± 5.10 55.14

* Juice diluted at 4 °Brix for all assays.