Samples of savory cup custard obtained from the food service industry were analyzed for the concentration of egg solution by the amount of protein, for the ratio of egg yolk solution by the total amount of phophorous, and for the quantity of dried bonito by the amount of histidine.
The concentration of egg solution in the samples of savory cup custard prepared by the food service industry varied from 21.9% to 33.2%. The ratio of egg yolk to egg solution and the bonito concentration in the samples from special shops were larger than in those from general shops.
The sensory evaluation result showed that the savory cup custard with an egg solution concentration of 25%, a breaking strength of 3734±267 Pa and a storage modulus of 135±18 Pa was most favored by the panelists.
The ratio of egg yolk to egg solution corresponded to the breaking strength. It is clear that both the 30∼40% and 65∼80% ratio of egg yolk to whole egg contributed to the firmness of a good savory cup custard. It is suggested that the addition of egg yolk to whole egg is the best method for preparing savory cup custard. The samples prepared at the ratio of 65∼80% egg yolk to whole egg did not have a smooth texture and strong egg yolk flavor which is not a desirable feature in a good-quality savory cup custard.
