Due to the high level of antioxidant activity of acorn fruits, they can be used as an ingredient the production of functional foods. The goal of the this research was to partially substitute wheat flour with varying levels (10% - 50% w/w) of debittered acorn flour and to investigate its effects on the rheological characteristics of the dough, total phenolic content (TPC), staling, colour indices and sensory properties of toast bread. The farinograph degree of softening and water absorption of the dough decreased with increasing the acorn flour content, while the stability and time of development of the dough increased. Resistance and extensibility to deformation of the samples respectively increased and decreased compared to those of the control. Toast bread with 30% acorn flour replacement was observed to have lower staling than the control. The highest TPC (9.44 mg GAE/g) and the lowest peroxide value (0.36 m eq O2/kg) were obtained for the bread having 30% acorn flour substitution. Moreover, the breads showed darker crumbs with significantly lower specific loaf volumes. Overall, the bread with 30% of acorn flour substitution showed good rheological, staling properties and reasonable anti-oxidant content compared to the control bread as well as the highest sensorial acceptability.
Aacc ; Paul M, Adom U, Sorrells K, Liu M, R. Approved Methods of the American Association of Cereal Chemists. Methods, 54, 21. St. Journal of Agricultural and Food Chemistry. 2000. p. 7825–34.
2.
Alaunyte I, Stojceska V, Plunkett A, Ainsworth P, Derbyshire E. Improving the quality of nutrient-rich teff (eragrostis tef) breads by combination of enzymes in straight dough and sourdough breadmaking. Journal of Cereal Science. 2012. p. 22–30.
3.
Aocs. Official methods and recommended practices of the american oil chemists. society. A. press; 2003.
4.
Atwater W. Experiments on the metabolism of matter and energy in the human body, 1898-1900. US Government Printing Office; 1902.
5.
Elleuch M, Bedigian D, Roiseux O, Besbes S, Blecker C, Attia H. Dietary fibre and fibre-rich by-products of food processing: Characterisation, technological functionality and commercial applications: A review. Food Chemistry. 2011. p. 411–21.
6.
Ferrari C, Torres E. Biochemical pharmacology of functional foods and prevention of chronic diseases of aging. Biomedicine & Pharmacotherapy. 2003. p. 251–60.
7.
Ghaderi-Ghahfarrokhi M, Sadeghi-Mahoonak A, Alami M, Khanegah M. Effect of processing treatments on polyphenol removal from kernel of two iranian acorns varieties. International. Food Research Journal. 2017. p. 86–93.
8.
Gray J, Bemiller J. Comprehensive Reviews in Food science and food safety. 2003. p. 1–21.
9.
Hadnadev T, Torbica A, Hadnadev M, Saravacos G, Taoukis P, Krokida M, et al. Procedia Food Science. 11th International Congress on Engineering and Food (ICEF). p. 328–34.
10.
Hartzfeld P, Forkner R, Hunter M, Hagerman A. Determination of hydrolyzable tannins (gallotannins and ellagitannins) after reaction with potassium iodate. Journal of Agricultural and Food Chemistry. 2002. p. 111155.
11.
Hu Y, Wang L, Li Z. Modification of protein structure and dough rheological properties of wheat flour through superheated steam treatment. Journal of Cereal Science. 2017. p. 222–8.
12.
Katina K, Salmenkallio-Marttila M, Partanen R, Forssell P, Autio K. Effects of sourdough and enzymes on staling of high-fibre wheat bread. 2006. p. 479–91.
13.
Korus J, Witczak M, Ziobro R, Juszczak L. The influence of acorn flour on rheological properties of gluten-free dough and physical characteristics of the bread. European Food Research and Technology. 2015. p. 1135–43.
14.
Kurek M, Wyrwisz J. The application of dietary fiber in bread products. Journal of Food Processing and Technology. 2015. p. 447–50.
15.
Lin LY, Liu HM, Yu YW, Lin SD, Mau JL. Quality and antioxidant property of buckwheat enhanced wheat bread. Food Chemistry. 2009. p. 987–91.
16.
Marpalle P, Sonawane S, Arya S. Effect of flaxseed flour addition on physicochemical and sensory properties of functional bread. 2014. p. 614–9.
17.
Mohammadzadeh A, Samadi-Maybodi A, Khodadoust S. Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy. 2013. p. 423–6.
18.
Mousavi B, Kadivar M. Effect of brine solution as a wheat conditioner, on lipase, amylase, and lipoxygenase activities in flour and its corresponding dough rheological properties. Journal of Food Processing and Preservation. 2018. p. 42.
19.
Pasqualone A, Delvecchio L, Mangini G, Taranto F, Blanco A. Variability of total soluble phenolic compounds and antioxidant activity in a collection of tetraploid wheat. Agricultural and Food Science. 2014. p. 307–16.
20.
Pasqualone A, Makhlouf F, Barkat M, Difonzo G, Summo C, Squeo G, et al. Effect of acorn flour on the physico-chemical and sensory properties of biscuits. Heliyon. 2019.
21.
Perez-Jimenez J, Saura-Calixto F. Literature data may underestimate the actual antioxidant capacity of cereals. Journal of Agricultural and Food Chemistry. 2005. p. 5036–40.
22.
Polimac M, Komlenić D. Proceedings of the 8th international congress flourbread’15, 10th croatian congress of cereal technologists, opatija, croatia. p. 177–81.
23.
Primo-Martin C, Van Nieuwenhuijzen N, Hamer R, Van Vliet T. Crystallinity changes in wheat starch during the bread-making process: Starch crystallinity in the bread crust. Journal of Cereal Science. 2007. p. 219–26.
24.
Rakić S, Maletić R, Perunović M, Svrzić G. Influence of thermal treatment on tannin content and antioxidation effect of oak acorn quercus cerris extract. Journal of Agricultural Sciences. 2004. p. 97–107.
25.
Rosell C, Rojas J, De Barber C. Influence of hydrocolloids on dough rheology and bread quality. Food Hydrocolloids. 2001. p. 75–81.
26.
Ijfs October. 2021. p. 322–33.
27.
Sabrin M. Characterization of acorn meal (Doctoral dissertation). 2009.
28.
Silva S, Costa E, Borges A, Carvalho A, Monteiro M, Pintado M. Nutritional characterization of acorn flour (a traditional component of the mediterranean gastronomical folklore). Journal of Food Measurement and Characterization. 2016. p. 584–8.
29.
Singleton V, Orthofer R, Lamuela-Raventos R. Oxidants and antioxidants. Methods in Enzymology. 1999. p. 152–78.
30.
Skendi A, Mouselemidou P, Papageorgiou M, Papastergiadis E. Effect of acorn meal-water combinations on technological properties and fine structure of gluten-free bread. Food Chemistry. 2018. p. 119–26.
31.
Taranto F, Delvecchio L, Mangini G, Del Faro L, Blanco A, Pasqualone A. Molecular and physico-chemical evaluation of enzymatic browning of whole meal and dough in a collection of tetraploid wheats. Journal of Cereal Science. 2012. p. 405–14.
32.
Wu Y, Chen Z, Li X, Li M. Effect of tea polyphenols on the retrogradation of rice starch. Food Research International. 2009. p. 322–33.
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