Vol. 11, Special Issue 8 (2022)

Author(s):
Chingakham Ngotomba Singh, Vidyalakshmi R, Venkatachalapathy N and Tito Anand M

Abstract:
This experiment revealed the viability of using copper materials for collecting coconut sap regarding various physicochemical parameter changes in chilled and ambient conditions. In the different storage conditions, the sap's pH, TSS, relative density, and dry matter values all significantly decreased, although the TTA and colour values increased. The glass vessel at ambient condition showed the most significant values of pH, TSS, relative density, dry matter and TTA as 5.0 ± 0.00 to 3.4 ± 0.02, 18.9 ± 0.00 to 10.3 ± 0.14 °brix, 1.1 ± 0.00 to 1.0 ± 0.00, 1.8 ± 0.00 to 1.1 ± 0.01, and 0.0 ± 0.00 to 0.2 ± 0.00 respectively. However, all the parameters were continually maintained when the sap was in the chilled copper vessel. The colour changes in sap held in copper at ambient temperatures was the most noticeable attribute. The L value in the at ambient copper vessel ranged significantly from 12.7 ± 0.04 to 35.8 ± 5.68. Although the sap in glass exposed to ambient conditions had the most degradation, sap exposed to chilling showed less degradation in all parameters. Hence, storage of sap in chilled copper vessel is recommended.