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Hydrothermal treatment and malting of barley improved zinc absorption but not calcium absorption in humans.
Eur J Clin Nutr 2003; 57(12):1507-13EJ

Abstract

OBJECTIVE

To study whether hydrothermal treatment or malting of barley (cv. Blenheim) improves zinc and calcium absorption in humans.

DESIGN

: Two groups of 10 and 12 healthy subjects, respectively, were in a period of 2 months in a fasting state, served two single meals each containing porridge or breakfast cereals prepared from processed or unprocessed (control) barley (60 g). The meals included 200 g of milk, extrinsically labelled with (65)Zn and (47)Ca. Whole-body retention of both minerals was measured.

SETTING

The study was carried out at the Department of Radiation Physics, Sahlgrenska University Hospital, Göteborg.

SUBJECTS

The subjects were recruited among students at the Göteborg University. None dropped out.

INTERVENTIONS

The activities of (65)Zn and (47)Ca were measured by whole-body counting four to five times over a 4-week period after each meal.

RESULTS

Zinc absorption from hydrothermally treated barley porridge, containing 28 mg P as inositol tri- to hexaphosphates (InsP(3)-InsP(6)), was significantly higher (P<0.001) than from control porridge containing 111 mg P as InsP(3)-InsP(6), 25.2+/-6.9 vs 11.0+/-2.5% (n=12). Calcium absorption did not differ (P>0.05), 21.1+/-6.8 vs 19.5+/-4.7% (n=12). Zinc absorption from breakfast cereals of malted barley with phytase activity and containing 70 mg P as InsP(3)-InsP(6,) was significantly higher (P<0.05) than from flakes of barley, containing 108 mg P as InsP(3)- InsP(6) and no phytase activity, 22.9+/-5.8 vs 14.8+/-4.6% (n=10). The calcium absorption was 21.3+/-6.5 vs 18.5+/-4.3% (n=10) and did not differ significantly (P>0.05).

CONCLUSION

Improvements of zinc absorption in breakfast meals can be achieved by optimised hydrothermal treatment or malting of barley. Calcium absorption was not influenced in the meals in this study.

SPONSORSHIP

Supported by Semper AB, Sweden, Oy Lahden Polttimo, Finland, the SL-Foundation, Sweden, Swedish National Board for Industrial and Technical Development (NUTEK), the Nordic Industrial Foundation, Swedish Council for Forestry and Agricultural Research (SJFR, project no 50.0306/97).

Authors+Show Affiliations

Department of Food Science, Chalmers University of Technology, Box 5401, SE 402 29 Göteborg, Sweden. mlw@fsc.chalmers.se

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

14647214

Citation

Fredlund, K, et al. "Hydrothermal Treatment and Malting of Barley Improved Zinc Absorption but Not Calcium Absorption in Humans." European Journal of Clinical Nutrition, vol. 57, no. 12, 2003, pp. 1507-13.
Fredlund K, Bergman EL, Rossander-Hulthén L, et al. Hydrothermal treatment and malting of barley improved zinc absorption but not calcium absorption in humans. Eur J Clin Nutr. 2003;57(12):1507-13.
Fredlund, K., Bergman, E. L., Rossander-Hulthén, L., Isaksson, M., Almgren, A., & Sandberg, A. S. (2003). Hydrothermal treatment and malting of barley improved zinc absorption but not calcium absorption in humans. European Journal of Clinical Nutrition, 57(12), pp. 1507-13.
Fredlund K, et al. Hydrothermal Treatment and Malting of Barley Improved Zinc Absorption but Not Calcium Absorption in Humans. Eur J Clin Nutr. 2003;57(12):1507-13. PubMed PMID: 14647214.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hydrothermal treatment and malting of barley improved zinc absorption but not calcium absorption in humans. AU - Fredlund,K, AU - Bergman,E-L, AU - Rossander-Hulthén,L, AU - Isaksson,M, AU - Almgren,A, AU - Sandberg,A-S, PY - 2003/12/4/pubmed PY - 2004/5/5/medline PY - 2003/12/4/entrez SP - 1507 EP - 13 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 57 IS - 12 N2 - OBJECTIVE: To study whether hydrothermal treatment or malting of barley (cv. Blenheim) improves zinc and calcium absorption in humans. DESIGN: : Two groups of 10 and 12 healthy subjects, respectively, were in a period of 2 months in a fasting state, served two single meals each containing porridge or breakfast cereals prepared from processed or unprocessed (control) barley (60 g). The meals included 200 g of milk, extrinsically labelled with (65)Zn and (47)Ca. Whole-body retention of both minerals was measured. SETTING: The study was carried out at the Department of Radiation Physics, Sahlgrenska University Hospital, Göteborg. SUBJECTS: The subjects were recruited among students at the Göteborg University. None dropped out. INTERVENTIONS: The activities of (65)Zn and (47)Ca were measured by whole-body counting four to five times over a 4-week period after each meal. RESULTS: Zinc absorption from hydrothermally treated barley porridge, containing 28 mg P as inositol tri- to hexaphosphates (InsP(3)-InsP(6)), was significantly higher (P<0.001) than from control porridge containing 111 mg P as InsP(3)-InsP(6), 25.2+/-6.9 vs 11.0+/-2.5% (n=12). Calcium absorption did not differ (P>0.05), 21.1+/-6.8 vs 19.5+/-4.7% (n=12). Zinc absorption from breakfast cereals of malted barley with phytase activity and containing 70 mg P as InsP(3)-InsP(6,) was significantly higher (P<0.05) than from flakes of barley, containing 108 mg P as InsP(3)- InsP(6) and no phytase activity, 22.9+/-5.8 vs 14.8+/-4.6% (n=10). The calcium absorption was 21.3+/-6.5 vs 18.5+/-4.3% (n=10) and did not differ significantly (P>0.05). CONCLUSION: Improvements of zinc absorption in breakfast meals can be achieved by optimised hydrothermal treatment or malting of barley. Calcium absorption was not influenced in the meals in this study. SPONSORSHIP: Supported by Semper AB, Sweden, Oy Lahden Polttimo, Finland, the SL-Foundation, Sweden, Swedish National Board for Industrial and Technical Development (NUTEK), the Nordic Industrial Foundation, Swedish Council for Forestry and Agricultural Research (SJFR, project no 50.0306/97). SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/14647214/Hydrothermal_treatment_and_malting_of_barley_improved_zinc_absorption_but_not_calcium_absorption_in_humans_ L2 - http://dx.doi.org/10.1038/sj.ejcn.1601718 DB - PRIME DP - Unbound Medicine ER -