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Title: Zinc in soybeans. Chemical nature and bioavilability

Abstract

Soybeans were grown hydroponically and intrinsically labeled with /sup 65/Zn through root absorption, stem injection and foliar application. Stem injection resulted in the greatest accumulation of /sup 65/Zn. Regardless of the labeling technique, approximately 40-45% of the seed /sup 65/Zn was associated with the subcellular organelles. The pattern of /sup 65/Zn incorporation into soybeans did not change appreciably as a result of the labelling technique. The major portion of the soluble /sup 65/Zn was either free or associated with very low molecular weight proteins, peptides, or their complexes with phytic acid rather than the major proteins of soybeans. Zinc in soybeans is ionically bound to proteins, peptides and phytic acid. Autoclaving did not affect the chemical association of zinc with soy proteins. Solubility of protein, zinc and phytic acid was studied over the pH range of 3.5-12.0. Bioavailability of zinc to rats from soybeans was lower than from casein and rats adapted to a casein basal diet absorbed more /sup 65/Zn from both casein and soy than rats adapted to a soy basal diet.

Authors:
Publication Date:
Research Org.:
Purdue Univ., Lafayette, IN (USA)
OSTI Identifier:
5900303
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 59 BASIC BIOLOGICAL SCIENCES; ZINC; BIOLOGICAL AVAILABILITY; METABOLISM; COMPLEXES; GLYCINE HISPIDA; PH VALUE; PHYTIC ACID; PROTEINS; RATS; ROOT ABSORPTION; SOYBEANS; TRACER TECHNIQUES; ZINC 65; ABSORPTION; ANIMALS; BACTERIA; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ESTERS; EVEN-ODD NUCLEI; FOOD; INTERMEDIATE MASS NUCLEI; ISOTOPE APPLICATIONS; ISOTOPES; LEGUMINOSAE; MAGNOLIOPHYTA; MAGNOLIOPSIDA; MAMMALS; METALS; MICROORGANISMS; NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; PHOSPHORIC ACID ESTERS; PLANTS; RADIOISOTOPES; RHIZOBIUM; RODENTS; UPTAKE; VEGETABLES; VERTEBRATES; ZINC ISOTOPES; 560300* - Chemicals Metabolism & Toxicology; 550501 - Metabolism- Tracer Techniques

Citation Formats

Khan, A. Zinc in soybeans. Chemical nature and bioavilability. United States: N. p., 1987. Web.
Khan, A. Zinc in soybeans. Chemical nature and bioavilability. United States.
Khan, A. 1987. "Zinc in soybeans. Chemical nature and bioavilability". United States.
@article{osti_5900303,
title = {Zinc in soybeans. Chemical nature and bioavilability},
author = {Khan, A},
abstractNote = {Soybeans were grown hydroponically and intrinsically labeled with /sup 65/Zn through root absorption, stem injection and foliar application. Stem injection resulted in the greatest accumulation of /sup 65/Zn. Regardless of the labeling technique, approximately 40-45% of the seed /sup 65/Zn was associated with the subcellular organelles. The pattern of /sup 65/Zn incorporation into soybeans did not change appreciably as a result of the labelling technique. The major portion of the soluble /sup 65/Zn was either free or associated with very low molecular weight proteins, peptides, or their complexes with phytic acid rather than the major proteins of soybeans. Zinc in soybeans is ionically bound to proteins, peptides and phytic acid. Autoclaving did not affect the chemical association of zinc with soy proteins. Solubility of protein, zinc and phytic acid was studied over the pH range of 3.5-12.0. Bioavailability of zinc to rats from soybeans was lower than from casein and rats adapted to a casein basal diet absorbed more /sup 65/Zn from both casein and soy than rats adapted to a soy basal diet.},
doi = {},
url = {https://www.osti.gov/biblio/5900303}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Thesis/Dissertation:
Other availability
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