• Journal of the East Asian Society of Dietary Life
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• v.18 no.5
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• pp.739-745
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• 2008

This study was conducted to determine the salt-intake from meals that were served by an institutional foodservice establishment for a month. Meals (176) were classified into 12 food groups by CAN Pro 3.0. These consisted of bap 6, mandu 5, guk 29, jjigae 9, jjim 4, gui 8, jeon 5, bokeum 25, jorim 16, fried 7, namul 49, pickled 12. The average salt content of 100 g of each menu item was significantly higher in the order of pickled>jorim>bokeum>gui>namul>jeon>jjigae>jjim>fried. The average salt and sodium contents of 1 potion of menu item was significantly higher in the order of jjigae>mandu>guk>bap>jorim>pickled>bokeum>gui>fried>jjim>gimchi>namul>jeon. The average salt contents of kim-chijjigae (6.05 g), eggjorim (7.01 g), cooked namul (2.78 g) and salted pepperleaves (4.67 g) was higher than that of the other menu items served frequently in the establishment. The average intake of salt and sodium was 23.48 g (sodium 9,310 mg) a day, 7.35 g (sodium 2,960 mg) with breakfast, 7.55 g (sodium 2,990 mg) with lunch and 8.33 g (sodium 3,300 mg) with dinner. The daily salt intake was slightly higher than that of DRIs (Dietary Reference Intakes).

• Journal of the East Asian Society of Dietary Life
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• v.18 no.4
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• pp.601-607
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• 2008

This study was examined the preferred temperature and salinity of soup in various demographic groups in order to establish the desirable serving renditions of soup for customers' satisfaction and health. Temperature and salinity were measured in August and November in order to determine the seasonal variation in preference using a digital salinity-temperature measuring device. Four demographic groups totaling 530 were from foodservice establishments in elementary schools(ES: male 68/female 59), middle-high schools(MHS: 62/69), universities(UNIV: 72/67) and companies(COM: 69/64) in Seoul. Various thin or thick soups which are typically served in foodservice establishments were served hot(below $90^{\circ}C$) and warm(below $40^{\circ}C$) in a 50mL portion: salty(1.2%) and less salty(0.4%) at $55{\pm}2^{\circ}C$. The preferred salinities and temperatures of the soups were found to be 0.74%, 0.82%, 0.64% and 0.67% and $49.65^{\circ}C$, $54.24^{\circ}C$, $57.56^{\circ}C$, $58.81^{\circ}C$ for the ES, MHS, UNIV and COM groups, respectively. The preferred temperatures of the soups were increased depending on the age, so the positive correlation was shown between temperature and age. However the preferred salinities of soups were not effected. There was no consistent tendency between men and women in temperature. For salinity, men preferred $0.04{\sim}0.12%$ higher than women in the ES, MHS and UNIV groups. There is no consistent tendency between thin and thick soup in temperature. All groups preferred higher salinity in the thick soup than in the thin soup. Most of the customers preferred a higher temperature and higher salinity in November than in August.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.3
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• pp.444-450
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• 2009

This study examined the preferred salinity levels of soups by different demographic groups in order to establish desirable serving conditions for soups with respect to customer satisfaction and health. The salinity levels were measured in August and November to determine seasonal variations using a digital salinity measuring device. Four demographic groups totaling 1,723 individuals were surveyed from institutional foodservice establishments (IFEs) in elementary schools (ES: male 202/female 194), middle-high schools (MHS: 268/216), universities (UNIV: 208/238), and companies (COM: 182/215) in Seoul. Various thin or thick soups typically offered in foodservice establishments were served salty (1.2%) and less salty (0.4%) at $55{\pm}2^{\circ}C$ in a 50 mL portion. The preferred salinities of the soups were found to be 0.71%, 0.79%, 0.76%, and 0.74% for ES, MHS, UNIV, and COM, respectively. Men had 0.02~0.08% higher preferences than women in ES, MHS and UNIV. The customers also preferred higher salinity levels in November than in August, and in thick soups than in thin soups. The salinities preferred by school children were significantly (p<0.01) lower than those of soups by the IFEs. A similar observation was made for MHS, in which each IFE served the soups with significantly (p<0.01) higher salinities than those preferred by the students. Again, at two COM IFEs, the salinities of the soups served were significantly higher than those preferred by the customers. However, for one of UNIV, the salinity of the served soup was significantly (p<0.05) higher than that preferred by the students, while in the two other UNIV no significant differences were noted between the salinity of the served soup and the level preferred by customers. The surveys showed that 9 out of 12 IFEs served soups having salinities that were significantly higher than those preferred by customers. In particular, regardless of preference, the MHS group was served soups with higher salinity levels than the other demographic groups. The salinities of the soups provided by the IFEs were unnecessarily high for the levels preferred by the customers. Therefore, IFEs should make an effort to serve soups that are less salty soups to enhance public health.