Korean J Community Nutr.  2018 Aug;23(4):333-340. 10.5720/kjcn.2018.23.4.333.

Salinity of Representative Korean Foods High in Sodium from Home Meals, Foodservices, and Restaurants

• Jiang L
• Shin D
• Lee YK

• KMID: 2420094
• DOI: http://doi.org/10.5720/kjcn.2018.23.4.333

Abstract

OBJECTIVES
This study was conducted to analyze the salinity of representative Korean foods high in sodium to generate data for use as a fundamental resource for setting salinity standards in foods.
METHODS
A total of 480 foods from 16 representative Korean foods high in sodium were collected from 10 households, 10 industry foodservice establishments, and 10 Korean restaurants in four regions (Capital area, Chungcheong Province, Gyeongsang Province, and Jeolla Province) and analyzed for salinity.
RESULTS
Among the foods, stir-fried anchovies (4.07~4.45%) showed the highest salinity, followed by pickled onion (1.86~2.62%), cabbage kimchi (1.83~2.2%), braised burdock and lotus root (1.79~2.17%), and sliced radish kimchi (1.78~1.89%) (p < 0.001). The salinity of kimchi from home meals (2.2%) was significantly higher than that of foodservice (1.83%) and restaurant (1.93%) kimchi (p < 0.05). Salinity in each group of food was highest in kimchi (1.83~2.04%), followed by braised dishes (1.54~1.78%), steamed dishes (1.0~1.22%), stir-fried dishes (1.02~1.18%), and soup or stew (0.74~1.02%) (p < 0.001). The salinity of soup and stew from restaurants (1.02%) was significantly higher than that of home meal (0.84%) and foodservice (0.74%) soup and stew.
CONCLUSIONS
Determination of the salinity of representative Korean foods known to be high in sodium by eating place is expected to be useful to establishing guidelines for reduction of salinity.

Keyword

Korean food; salinity; sodium; home meal; foodservice; restaurants

MeSH Terms

Arctium
Brassica
Eating
Family Characteristics
Lotus
Meals*
Onions
Raphanus
Restaurants*
Salinity*
Sodium*
Steam
Sodium
Steam

Reference

1. Pietinen P. Estimating sodium intake from food consumption data. Ann Nutr Metab. 1982; 26(2):90–99.

2. Fregly MJ. Estimates of sodium and potassium intake. Ann Intern Med. 1983; 98(5 part 2):792–799.

3. Meneton P, Jeunemaitre X, Wardener HE, Mac Gregor GA. Links between dietary salt intake, renal salt handling, blood pressure, and cardiovascular diseases. Physiol Rev. 2005; 85(2):679–715.

4. Cook NR, Cutler JA, Obarzanek E, Buring JE, Rexrode KM, Kumanyika SK. Long term effects of dietary sodium reduction on cardiovascular disease outcomes: observational follow-up of the trials of hypertension prevention (TOHP). BMJ. 2007; 334(7599):885–893.

5. Chobanian AV, Hill M. National heart, lung, and blood institute workshop on sodium and blood pressure: A critical review of current scientific evidence. Hypertension. 2000; 35(4):858–863.

6. de Wardner HE, MacGregor GA. Harmful effects of dietary salt in addition to hypertension. J Human Hypertens. 2002; 16(4):213–223.

7. Tsugane S. Salt, salted food intake, and risk of gastric cancer: epidemiologic evidence. Cancer Sci. 2005; 96(1):1–6.

8. Ministry of Health and Welfare, Korea Centers for Disease Control and Prevention. Korea Health Statistics 2016: Korea National Health and Nutrition Examination Survey (KNHANES VII-1). Sejong: Ministry of Health and Welfare;2017.

9. Ministry of Health and Welfare, Korea Centers for Disease Control and Prevention. Korea Health Statistics 2012: Korea National Health and Nutrition Examination Survey (KNHANES VII-1). Sejong: Ministry of Health and Welfare;2013.

10. Ministry of Food and Drug Safety. Only 8% of respondents knows recommended intake of sodium [Internet]. Ministry of Food and Drug Safety;2010. cited 2016 Oct 22. Available from: http://www.mfds.go.kr/brd/m_99/view.do?seq=13292.

11. Shin EK, Lee YK. Comparison of sodium content of workplace and homemade meals through chemical analysis and salinity measurements. Nutr Res Pract. 2014; 8(5):558–563.

12. Kim JA, Kim YH, Ann MY, Lee YK. Measurements of salinity and salt content by menu types served at industry foodservice operations in Daegu. Korean J Community Nutr. 2012; 17(5):637–651.

13. Park S, Min SH. A study on eating out behavior and recognition of salinity in restaurant food in Jecheon area. J Korean Soc Food Culture. 2015; 30(1):20–28.

14. Lim HS, Ko YS, Shin D, Heo YR, Chung HJ, Chae IS. Sodium and potassium content of school meals for elementary and junior high school students in Daegu, Masan, Gwangju, and Jeju. Korean Soc Food Sci Nutr. 2013; 42(8):1303–1317.

15. Lee HJ, Lee CH, Lee KS, Jung YJ, Ha SH, Jung YY. Survey on sodium contents in meals of school foodservice and sodium intakes of students in Busan and Gyeongsangbuk-do. Korean Soc Food Sci Nutr. 2010; 39(1):85–91.

16. Park HR, Jeong GO, Lee SL, Kim JY, Kang SA, Park KY. Workers intake too much salt from dishes of eating out and food service cafeterias; direct chemical analysis of sodium content. Nutr Res Pract. 2009; 3(4):328–333.

17. Jang MR, Hong MS, Choi BC, Han SH, Lee KA, Kim LL. Contents of sodium and potassium for restaurant dishes in Seoul. J Food Hyg Saf. 2015; 30(2):189–195.

18. Jiang L, Lee YK. Analysis of sodium content of representative Korean foods high in sodium from home meal, foodservice, and restaurants. J Nutr Health. 2017; 50(6):655–663.

19. Korea Centers for Disease Control and Prevention. Salt intake is still high in Korea [Internet]. Korea Centers for Disease Control and Prevention 2012. cited 2016 Oct 22. Available from: http://www.cdc.go.kr/CDC/notice/CdcKrIntro0201.jsp?menuIds=HOME006-MNU2804-MNU2937&cid=19415.

20. Lee KJ, Song MR. Salinity of Kimchi and soups/stews, and the acceptability and attitudes of restaurant owners toward salt in the Jeonju area. J Soc Food Culture. 2009; 24(3):279–285.

21. Song MR, Lee KJ. Salinity and consumption patterns of Kimchi and soup·stew in Jeonju area. J Food Cookery Sci. 2008; 24(1):84–91.

22. Han X. Evaluation on the effects of the education for sodium reduction of restaurants in Daegu and analysis of sodium content in target menus. [master's thersis]. Kyungpook National University;2017.

23. Lee HS. Studies on salt intake through eat-out foods in Andong area. Korean J Soc Food Sci. 1997; 13(3):314–318.

24. Park SY, Lee KA. Study on the salt and sodium content of middle school lunch meals in Gyeongsangbuk-do area: focus on application of ‘SamSam Foodservice’. J Korean Soc Food Sci Nutr. 2016; 45(5):757–764.

25. Son SM, Park YS, Lim HJ, Kim SB, Jeong YS. Sodium intakes of Korean adults with 24-hour urine analysis and dish frequency questionnaire and comparison of sodium intakes according to the regional area and dish group. Korean J Community Nutr. 2007; 12(5):545–558.

26. Moon GS, Son YS, Jeon YS. A study of famous traditional Kimchi in Pusan and near Pusan area. Korean J Soc Food Sci. 1996; 12(1):74–81.

27. Song DY, Park JE, Shim JE, Lee JE. Trends in the major dish groups and food groups contributing to sodium intake in the Korea National Health and Nutrition Examination Survey 1998- 2010. Korean J Nutr. 2013; 46(1):72–85.

28. Ministry of Food and Drug Safety. Choose the sodium reduced foods in restaurant and foodservice [Internet]. Ministry of Food and Drug Safety. 2014. cited 2016 Dec 26. Available from: http://www.mfds.go.kr/index.do?mid=675&seq=26007&cmd=v.