The effect of time and duration of tapping and the addition of laru as natural preservative in coconut sap quality

Abstract

This study was aimed to obtain the optimal quality of coconut sap at the tapping stage related to tapping time and duration and addition of natural preservative named laru. The study was designed as factorial design with complete randomized block. The factors applied were tapping time at morning to noon (06.00 - 14.00 AM) and at afternoon to evening (14.00 - 22.00 PM), tapping duration in 2, 4, 6, and 8 hours and laru addition in 0 and 2%. The results showed that the quality of coconut sap (volume, discharge, acidity level/pH and sucrose content) from tapping at afternoon to evening time was higher and better than tapping at morning to noon time. In tapping coconut sap without laru addition, the optimal time duration of tapping at the morning to noon is 6 hours, while tapping time at the afternoon to evening is 8 hours. In tapping coconut sap with the addition of laru, the optimal limit of tapping time at the morning to noon is 8 hours, while for tapping in the afternoon to night is more than 8 hours.