• 제목/요약/키워드: Food Science and Nutrition

검색결과 18,316건 처리시간 0.039초

Properties of corn Starches Isolated from Irradiated Glutinous and Non-Glutinous Corn Grains

  • Kang, Il-jun;Byun, Myung-Woo;Yook, Hong-Sun;Lee, Soo-jeong;Chung, Cha-Kwon
    • Preventive Nutrition and Food Science
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    • 제2권1호
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    • pp.23-28
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    • 1997

  • Physicohemical properties of corn starches isolated from non-glutinous and corn grains fol-lowing γ-irradiation up to 10kGy were investigated. Blue value, water binding capacity and swelling power decreased, while alkali number ad solubility increased by γ-irradiation , which was more pronounced in glu-tinous corn starch than in non-glutinous corn starch. The optical transmittance increased with an increment of heating temperature and applied irradiation doses. No significant difference was observed in Hunter's color value between both starches isolated from non- irradiated and irradiated and irradiated corn grains. Amylograph viscosities decreased remarkably as dose levels increased. The overall effects of γ-irradiation was more distinguished in glutinous starch than in non-glutinous starch.

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Potential Antioxidant Trace Mineral (Zn, Mn, Cu and Fe) Concentrations Measured by Biochemical Indices in South Koreans

  • Cho, Young-Eun;Byun, Young-Mee;Kwak, Eun-Hee;Yoon, Jin-Sook;Oh, Hyun-Mee;Kim, Jae-Wang;Shin, Hyun-Soo;Kwon, Chong-Suk;Kwun, In-Sook
    • Preventive Nutrition and Food Science
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    • 제9권4호
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    • pp.374-382
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    • 2004

  • The concern of the antioxidant micronutrient status in normal healthy people, including antioxidant trace minerals such as Cu, Zn, Mn, Fe and Se is focused since systemic oxidation is involved in various chronic diseases. In the present study, we evaluated the concentration of trace minerals (Cu, Zn, Mn, and Fe) which are considered as potential antioxidant minerals in plasma, red blood cells (RBCs) and urine in normal healthy Korean subjects. The 760 subjects (male 341, female 419; mean age 54.2 $\pm$ 18.9) were recruited from the rural, urban and metropolitan city in South Korea. Dietary intake was evaluated using 24-hours recall for general major nutrient intake assessment. The trace elements (Cu, Zn, Mn, and Fe) concentrations in plasma, RBCs, and urine were measured by inductively coupled plasma spectrophotometer (ICP) and atomic absorption spectrophotometer (AAS). Cu and Zn levels in plasma, RBCs and urine in normal healthy South Koreans were within the normal range of those mineral levels, but Mn and Fe levels were higher compared to the normal range of those mineral levels. None of the selected trace mineral levels in plasma and RBC's was lower than the normal range value. The results showed that Zn and Cu levels in plasma and RBC's in Korean were within the normal range, and plasma and urinary Mn and Fe levels were higher than the normal reference values. Potential antioxidant trace mineral (Cu, Mn, Zn and Fe) levels in Koreans are within or a bit higher than the normal range.

  • https://doi.org/10.3746/jfn.2004.9.4.374 인용 PDF KSCI