Get access

A Soybean Cultivar Lacking Lipoxygenase 2 and 3 Has Similar Calcium Bioavailability to a Commercial Variety Despite Higher Calcium Absorption Inhibitors

Authors

  • H.S.D. Martino,

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author
  • B.R. Martin,

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author
  • C.M. Weaver,

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author
  • J. Bressan,

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author
  • M.A. Moreira,

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author
  • N.M.B. Costa

    1. Authors Martin and Weaver are with Dept. of Foods and Nutrition, Purdue Univ., West Lafayette, IN 47906, U.S.A. Authors Martino, Bressan, and Costa are with Dept. de Nutrição e Saúde and author Moreira is with Dept. de Biologia Molecular, Univ. Federal de Viçosa, Viçosa-MG 36570-000, Brazil. Direct inquiries to author Weaver (E-mail: weavercm@purdue.edu).
    Search for more papers by this author

Abstract

ABSTRACT:  The aim of this study was to evaluate calcium bioavailability of a new soybean variety without 2 lipoxygenases with better taste and flavor than a commercial variety containing all 3 isozymes. Using the femur 45Ca uptake method, calcium absorption from a new Brazilian variety, UFV-116, was compared to a common Brazilian variety, OCEPAR 19. Male Sprague–Dawley growing rats weighing 150 to 170 g (10/group) received test meals of whole fat soy flour prepared from UFV-116 or OCEPAR-19 seeds labeled with 10 μCi of 45Ca. Femurs were removed after 48 h for determination of 45Ca uptake. Calcium fractional absorption was equivalent between the 2 varieties. The higher oxalate:calcium molar ratio and the higher content of oxalate and phytate (P < 0.05) found in the UFV-116 variety did not affect calcium absorption. Therefore, the new variety is a comparable source of high bioavailable calcium.

Ancillary