Coating of chaiya salted eggs with tea waste to partially replace soil from termite mound

Abstract

The research aims to study the quality of Chaiya salted eggs coated with tea waste to partially replace soil from termite mound. The residue of tea waste dried to a moisture content of 14.9% was used to prepare salt coating paste. It was found that the mixture of coating paste by substitution of termite mound soil with 10% (w/w) tea waste was appropriate to coat the duck eggs. The salt content increased in both egg yolk and egg white with increasing salt coating time. Coating egg with 10% tea waste for 24 days, egg yolk contained salt 0.83%, moisture 17.04% and weighed 19.19 grams. The pH value and hardness were 6.43 and 93.67 gram respectively. The egg white contained salt 5.27%, moisture 81.61% and pH value was 7.60. The salted boiled eggs coated by 10% tea waste treatment for 21 days were accepted by the panelists in terms of the overall liking with the level of much liking (8.67), not significantly different (p>0.05) from that of the control treatment (0% tea waste). Microorganisms in the salted boiled eggs did not excess Thai OTOP standard. A hundred general consumers accepted this product in terms of the overall liking with the level of much liking (8.00).