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Degradation of ascorbic acid of guava juice during storage.
Samples with the same superscripts don't differ at 5 % level of significance. S1 = Juice (without preservative) at RMT; S2 = Juice (without preservative) at RFT (4 °C); S3 = Juice contained KMS 150 ppm; S4 = Juice contained KMS 200 ppm; S5 = Juice contained KMS 250 ppm; S6 = Juice contained Sodium Benzoate 150 ppm; S7 = Juice contained Sodium Benzoate 200 ppm; S8 = Juice contained Sodium Benzoate 250 ppm.
