Protein Quality of Traditional Rye Breads and Ginger Cakes as Affected by the Incorporation of Flour with Different Extraction Rates

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Abstract

The aim of this study was to evaluate the effect of rye flour extraction rate on the protein amino acids content and protein quality indexes (chemical score, CS, protein efficiency ratio, PER) of traditional rye bread and ginger cake and to compare them with conventional wheat bread. Rye flour with extraction rates of 1000 g/kg and 920 g/kg (F-1000 and F-920, respectively), were used. Amino acid content was determined by HPLC and protein quality indexes were calculated. The results showed that contents of non-essential amino acids (NEAA) were not much affected by flour extraction rate in rye bread and ginger cake since only Asp and Ser were higher in F-1000 rye bread and Arg and Pro in F-1000 ginger cake. In regard to essential amino acids (EAA), only Thr and Val content was significantly higher (P≤0.05) in F-1000 rye bread, on dry weight basis. In addition, rye bread formulated with whole rye flour exhibited a higher content of total EAA than wheat bread (P≤0.05). Regarding protein quality indexes, CS values were quite low in breads and ginger cakes, being Lys the limiting amino acid. However, estimated PER values were similar among wheat and rye breads, and slightly lower for ginger cakes. Hence, whole rye flour should be considered as an approach to improve the nutritional quality of traditional rye-based products.

1. Adams J.F., Engstrom A., Dietary intake of whole grain vs. recommendations. Cereal Foods World, 2000, 45, 75-78.

2. Alsmeyer B.J., Cunningham A.E., Happich M.L., Equations predict PER from amino acid analysis. Food Technol., 1974, 28, 34-40.

3. Andlauer W., Furst P., Does cereal reduce the risk of cancer?. Cereal Foods World, 1999, 44, 76-78.

4. AOAC. Official Methods of Analysis (15th edn). In: Association of Official Analytical Chemists, 2000. Washington, DC.

5. Brennan C.S., Cleary L.J., The potential use of cereal (1→3,1→4)-b-D-glucans as functional food ingredients. J. Cereal Sci., 2005, 42, 1-13.

6. Bushuk W., Rye: Production, chemistry, and technology (2nd ed.), Amer. Assn. Cer. Chem., St. Paul, Minnesota. 2001.

7. Charissou A., Ait-Ameur L., Birlouez-Aragon I., Kinetics of formation of three indicators of the Maillard reaction in model cookies: Influence of baking temperature and type of sugar model cookies: Influence of baking temperature and type of sugar. J. Agric. Food Chem., 2007, 55, 4532-4539.

8. Capuano E., Garofalo G., Napolitano A., Zielinski H., Fogliano V., Rye flour extraction rate affects Maillard reaction development, antioxidant activity, and acrylamide formation in bread crisps. Cereal Chem., 2010, 87, 131-136.

9. FAO. Protein and amino acid requirements in human nutrition. Report of Joint WHO/FAO/UNU Expert consultation. WHO Technical Report Series 935, 2007.

10. Horszwald A., Morales F.J., Del Castillo M.D., Zieliński H., Evaluation of antioxidant capacity and formation of processing contaminants during rye bread making. J. Food Nutr. Res., 2010, 49, 149-159.

11. Horszwald A., Troszyńska A., Del Castillo M.D., Zielinski H., Protein profile and sensorial properties of rye breads. Eur. Food Res. Technol., 2009, 229, 875-886.

12. Martínez-Villaluenga C., Gulewicz P., Frias J., Gulewicz K., Vidal- Valverde C., Assessment of protein fraction of three varieties of Pisum sativum L. Effect of germination. Eur. Food Res. Technol., 2008, 226, 1465-1478.

13. Michalska A., Ceglińska A., Amarowicz R., Piskuła M.K., Szawara- Nowak D., Zieliński H., The antioxidant contents and antioxidative properties of traditional rye breads. J. Agric. Food Chem., 2007, 55, 734-740.

14. Michalska A., Miryam Amigo-Benavent M., Zielinski H., Del Castillo M.D., Effect of bread making on the formation of Mailar reaction products contributing to the overall antioxidant activity of rye bread. J. Cereal Sci., 2008, 48, 123-132.

15. Mustafa A., Aman P., Andersson R., Kamal-Eldin A., Analysis of free amino acids in cereal products. Food Chem., 2007, 105, 317-324.

16. Nyström L., Lampi A.M., Andersson A.A.M., Kamal-Eldin A., Gebruers K., Courtin C.M., Delcour J.A., Li L., Ward J.L., Fras, A., Boros D., Rakszegi M., Bedo Z., Shewry P.R., Piironen V., Phytochemicals and dietary fiber components in rye varieties in the HEALTHGRAIN diversity screen. J. Agric. Food Chem., 2008, 56, 9758-9766.

17. Pellett P.L., Young V.R., Nutritional Evaluation of Proteins Foods. The United Nations University, 1980.

18. Piekut M., Consumption of bakery products in Polish households. Przegl. Piek. Cuk., 2008, 7, 6-18 (in Polish).

19. Zieliński H., Amigo-Benavent M., Del Castillo M.D., Horszwald A., Zielińska D., Formulation and baking process affect Maillard reaction development and antioxidant capacity of ginger cakes. J. Food Nutr. Res., 2010, 49, 140-148.

20. Zieliński H., Michalska A., Ceglińska A., Lamparski G., Antioxidant properties and sensory quality of traditional rye bread as affected by the incorporation of flour with different extraction rates in the formulation. Eur. Food Res. Technol., 2008, 226, 671-680.

21. Zieliński H., Ciesarova Z., Troszyńska A., Ceglińska A., Zielińska D., Amarowicz R., Przygodzka M., Kukurova K., Antioxidant properties, acrylamide content and sensory quality of ginger cakes with different formulations. Pol. J. Food Nutr. Sci., 2012, 61, 41-50.

Polish Journal of Food and Nutrition Sciences

The Journal of Institute of Animal Reproduction and Food Research of Polish Academy of Sciences in Olsztyn

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