Journal List > Korean J Community Nutr > v.21(6) > 1038568

Jeong, Lee, Kim, and Om: A Study on Vitamin C Content of Nutrition Emphasized Products

Abstract

Objectives

Vitamin C has various functions such as antioxidative effect and supporting absorption of iron (Fe). Aim of this present study was to provide vitamin C nutrition information and to briefly evaluate absorption interaction of vitamin C and Fe content of vitamin C emphasized products.

Methods

Vitamin C emphasized foods including beverages, cereal, snacks, chocolate products, other cocoa products, and sugary products were examined by HPLC. Fe contents in samples after dry-ashing were examined by ICP.

Results

Vitamin C content ranges in various products tested were the following: beverages (n=11) 20.15 ± 0.08~845.41 ± 6.07 mg, cereal (n=11) 52.50 ± 0.23~262.50 ± 0.07 mg, snacks (n=1) 50.00 ± 0.25 mg, chocolate products (n=1) 311.73 ± 2.44 mg, other cocoa products (n=1) 311.73 ± 2.44 mg, other sugary products (n=2) 52.50 ± 0.23~262.50 ± 0.07 mg. Vitamin C (n=27) analysis values ranged from 82 to 450% of the labeled value. Vitamin C content in vitamin C emphasized food (n=6) was estimated 7.7 times~56.6 times more than Fe content.

Conclusions

Analyzed samples ranged more than 80% of the labeled value in vitamin C emphasized products, which complied with food labeling regulation. But, beverages (n=3), cereal (n=4), chocolate products (n=1) were 2 times more than the labeled value. To provide accurate nutrition information, food manufactures should supervise nutrition labeling and understand the interactions between nutrients. Also, consumer should decide about the adequate amount of nutrient intake by thoroughly checking nutrition labeling.

Figures and Tables

Table 1

Analysis instrument condition of vitamin C by HPLC system

kjcn-21-574-i001
Table 2

Precision of Vitamin C and Iron measurements

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Table 3

Vitamin C contents analysis in vitamin C nutrition claim on beverage products

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1) (Analyzed value / Labeled value) × 100

2) Mean±SD

Table 4

Vitamin C contents analysis in vitamin C nutrition claim on cereal products

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1) (Analyzed value / Labeled value) × 100

2) Mean±SD

Table 5

Vitamin C contents analysis in vitamin C nutrition claim on other products

kjcn-21-574-i005

1) (Analyzed value / Labeled value) × 100

2) Mean±SD

Table 6

Analysis contents of iron and vitamin C in emphasized products

kjcn-21-574-i006

1) Mean±SD

Acknowledgments

This research was supported by a grant (14162MFDS124) from Ministry of Food and Drug Safety in 2015. We thank JaeYeon Kim for proofreading.

References

1. Lee MS. Lipid composition and differences in crude fat contents in wheat flour and dry noodles according to determination methods. Korean J Food Nutr. 2010; 23(3):381–385.
2. Lim SH, Kim JB, Cho YS, Choi YM, Park HJ, Kim SN. National standard food composition tables provide the infrastructure for food and nutrition research according to policy and industry. Korean J Food Nutr. 2013; 26(4):886–894.
3. Kwon KI, Park SH, Lee JH, Kim JY, Yoo KS, Lee JS. Prevalence of nutrition labeling and claims on processed, and packaged foods. Korean J Community Nutr. 2007; 12(2):206–213.
4. Murphy SP, White KK, Park SY, Sharma S. Multivitamin-multimineral supplements' effect on total nutrient intake. Am J Clin Nutr. 2007; 85(1):280S–284S.
5. Kim SH, Han JH, Kim WY. Consumption of health functional foods by elementary schoolchildren in Korea. Korean J Nutr. 2010; 43(2):161–170.
6. Kim MG, Kim YS, Kim YS, Lee SB, Ryu KS, Yoon MH. A study on the content of minerals in fortified food. J Food Hyg Saf. 2014; 29(2):99–104.
7. Ministry of Food and Drug Safety. Ministry of Food and Drug Safety Notification. Appendix 1 [Internet]. Ministry of Food and Drug Safety;2015. [cited 2015 Aug 10]. Available from: http://www.law.go.kr/admRulInfoP.do?admRulSeq=2100000035462#AJAX.
8. Voko Z, Hollander M, Hofman A, Koudstaal PJ, Breteler MM. Dietary antioxidants and the risk of ischemic stroke: the Rotterdam Study. Neurology. 2003; 61(9):1273–1275.
9. Hamilton IM, Gilmore WS, Benzie IF, Mulholland CW, Strain JJ. Interactions between vitamins C and E in human subjects. Br J Nutr. 2000; 84(3):261–267.
10. Phillips KM, Tarragó-Trani MT, Gebhardt SE, Exler J, Patterson KY, Haytowitz DB, et al. Stability of vitamin C in frozen raw fruit and vegetable homogenates. J Food Compost Anal. 2010; 23(3):253–259.
11. Frei B, Lawson S. Vitamin C and cancer revisited. Proc Natl Acad Sci. 2008; 105(32):11037–11038.
12. Brewster MA. Nutritional Elements and Clinical Biochemistry: Role of Vitamin C in Health and Disease. NY: Springer US;1980. p. 69–115.
13. Layrissem M, Mariunez-torres C, Gonzales M. Measurement of the total daily dietary iron absorption by the extrinsic tag model. Am J Clin Nutr. 1974; 27(2):152–162.
14. Rossander L, Hallberg L, Bjorn-Rasmussen E. Absorption of iron from breakfast meals. Am J Clin Nutr. 1979; 32(12):2484–2489.
15. Charnley M, Abayomi J. Micronutrients and the use of vitamin and mineral supplements during pregnancy and lactation. Br J Midwifery. 2016; 24(6):405–414.
16. Institute of Medicine (US) Panel on Micronutrients. Dietary reference intakes for vitamin A, vitamin K, arsenic, boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, silicon, vanadium, and zinc. Washington: National Academies Press;2000. p. 290–300.
17. Shin Y, Kim SD, Kim BS, Yun ES, Chang MS, Jung SO. The content of minerals and vitamins in commercial beverages and liquid teas. J Food Hyg Saf. 2011; 26(4):322–329.
18. Chang SO. The evaluation of nutrients and health functional elements presented at nutrition labels of various beverages in the market. Korean J Nutr. 2007; 40(6):558–565.
19. Ministry of Food and Drug Safety. Korean food standard codex. 2nd ed [Internet]. Ministry of Food and Drug Safety;2013. [cited 2015 Aug 10]. Available from: http://www.foodsafetykorea.go.kr/foodcode/01_01.jsp.
20. Choi WS, Kim YJ, Jung JY, Kim TJ, Jung BM, Kim ER. Research for selecting the optimized vitamin C analysis method. Korean J Food Sci Technol. 2005; 37(6):861–865.
21. Aust SD, Morehouse LA, Thomas CE. Role of metals in oxygen radical reactions. J Free Radic Biol Med. 1985; 1(1):3–25.
22. Miller DM, Buettenr GR, Aust SD. Transition metals as catalysts of “Autoxidation” reactions. Free Radic Biol Med. 1990; 8(1):95–108.
23. World Health Organization. Scurvy and its prevention and control in major emergencies. Geneva, Swiss: World Health Organization;1999. p. 17. p. 22.
24. Kim OH, Kim ES. A study on the mineral content of calciumfortified foods in Korea. J Korean Soc Food Sci Nutr. 2003; 32(1):96–101.
25. Jacob RA, Sotoudeh G. Vitamin C function and status in chronic disease. Nutr Clin Care. 2002; 5(2):66–74.
26. McLean-Meyinsse PE. An analysis of nutritional label use in the Southern United States. J Food Distrib Res. 2001; 32(1):110–114.
27. Teucher B, Olivares M, Cori H. Enhancers of iron absorption: ascorbic acid and other organic acids. Int J Vitam Nutr Res. 2004; 74(6):403–419.
28. Sayers MH, Lynch SR, Charlton RW, Bothwell TH, Walker RB, Mayet F. Iron absorption from rice meals cooked with fortified salt containing ferrous sulphate and ascorbic acid. Br J Nutr. 1974; 31(3):367–375.
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Ae-Son Om
https://orcid.org/http://orcid.org/0000-0002-9452-9647

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