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1995 Fiscal Year Final Research Report Summary

Nutritional evaluation of mineral intake=Comparison of the food composition table method and food duplicate-ICP analysis method

Research Project

Project/Area Number 05557025
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Hygiene
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

IKEDA Masayuki  Kyoto Univ., Fac.of Med., Professor, 医学研究科, 教授 (00025579)

Co-Investigator(Kenkyū-buntansha) SHIMBO Shinichiro  Kyoto Women's Univ.Professor, 短期大学部, 教授 (60027406)
IGUCHI Hiroshi  Kyoto Univ., Fac.of Med.Research Associate, 医学研究科, 助手 (90025643)
WATANABE Takao  Miyagi Univ.Fac.of Educ.Professor, 教育学部, 教授 (20004608)
Project Period (FY) 1993 – 1995
KeywordsFood composition tables / Food duplicate / Inductively-coupled plasma spectrometry / Japan / Mineral intake / Trace elements
Research Abstract

Daily dietary intakes of 28 trace elements were estimated from 24-food duplicate records of 456 adult women. The estimates made it possible to classify the elements into three groups of high (i.e., >1 mg/day as a median ; 7 elements of Al, Cu, Mg etc.), medium (2-985 ug/day ; 13 elements of As, B,Ba, Be etc.) and low intake (<1 ug/day ; 5 elements of Cd, Co, Li etc.). Published values for the element intake were available for 15 elements among the 28. Comparison showed that the food composition-based estimates tended to agree with the published values only when the estimated intakes were above 1 ug/day, but the discrepancies were evident for four elements of low intake (i.e., <1 ug/day). In a subsequent study, 24-hour total food duplicates were collected from 231 adult women in 9 prefectures in Japan, and dietary intakes of 5 minerals [sodium (Na), potassium (K), phosphorus (P), calcium (Ca) and iron (Fe) ] were estimated from the weights of food items in each duplicate sample by use of food composition tables. Food components in each duplicate sample was homogenized and wet-ashed for element determination by inductively-coupled plasma spectrometry (ICP). The comparison of the two sets of values, the estimates and ICP-measured values, showed that the estimates were significantly larger than the measured values in cases of Na (the ratio of the estimated over the measured ; 118%), K (115%), Ca (109%) and Fe (130%), whereas the two values did not differ from each other in case of P (the ratio ; 93%). Thus, food composition-based estimation carries the risk of over-estimation in case of Na, K,Ca and Fe, but not so in case of P.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] S. Shimbo, et al.: "Use of food composition database to estimate daily dietary intake of nutrient or trace elements in Japan, with reference to its limitation" Food Add Contam.(in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C. -S. Moon, et al.: "A comparison of food composition-based estimates of dietary mineral intake with the values measured by inductively coupled plasma spectrometry: An experience in a Japanese population." J Trace Elem Med Biol. (in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Shimbo, A.Hayase, M.Murakami, I.Hatai, K.Higashikawa, C.-S.Moon, Z.-W.Zhang, T.Watanabe, H.Iguchi and M.Ikeda: "Use of food composition database to estimate daily dietary intake of nutrient or trace elements in Japan, with reference to its limitation" Food Add Contam. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.-S.Moon, Z.-W.Zhang, S.Shimbo, S.Hokimoto, K.Shimazaki, T.Saito, A.Shimizu, Y.Imai, T.Watanabe and M.Ikeda: "A comparison of food composition-based estimates of dietary mineral intake with the values measured by inductively coupled plasma spectrometry : An experience in a Japanese population." J Trace Elem Med Biol. (in press).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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