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Journal of Food Science and Technology

, Volume 54, Issue 7, pp 2094–2103 | Cite as

Degree of roasting of carob flour affecting the properties of gluten-free cakes and cookies

  • Laura Román
  • Ana González
  • Teresa Espina
  • Manuel Gómez
Original Article

Abstract

Carob flour is a product rich in fibre obtained from by-products of the locust bean gum extraction processing. The flour is commercialised with different degrees of roasting in order to improve its organoleptic characteristics. In this study, carob flour with three different roasting degrees was used to replace rice flour (15%) in gluten-free cakes and cookies. The influence of this replacement was studied on the psychochemical characteristics and acceptability of the final products. The incorporation of carob flour increased the viscosity of cake batters and increased the solid elastic-like behaviour of the cookie doughs, indicating a stronger interaction among the formula ingredients. The inclusion of carob flour, with a low time of roasting, did not lead to any significant differences in the specific volume and hardness of the cakes, but reduced cake staling and the thickness and width of the cookies. Darker colours were obtained when carob flour was incorporated into the product. The acceptability of cakes was only reduced with the addition of highly roasted carob flour, while in the case of cookies there was a decline in the acceptability of all carob flour cookies, which was mostly perceived with the highest roasting degree, something mainly attributed to the bitter taste of the products.

Keywords

Roasted carob flour Cookie Cake Fibre Gluten-free 

Notes

Acknowledgements

The authors acknowledge the financial support of the Spanish Ministry of Economy and Competitiveness (Project AGL2014-52928-C2) and the European Regional Development Fund (FEDER). The authors are also grateful to Harinera Castellana and G.A. Torres for supplying the raw materials. They also would like to thank Montserrat Prieto for her assistance whilst carrying out product analyses.

Supplementary material

13197_2017_2649_MOESM1_ESM.jpg (458 kb)
1 Cake photographs. A) Rice flour; B) 15 g/100 g of short time roasted carob flour; C) 15 g/100 g of medium time roasted carob flour; D) 15 g/100 g of long time roasted carob flour
13197_2017_2649_MOESM2_ESM.jpg (217 kb)
2 Cookie photographs. A) Rice flour; B) 15 g/100 g of short time roasted carob flour; C) 15 g/100 g of medium time roasted carob flour; D) 15 g/100 g of long time roasted carob flour

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Copyright information

© Association of Food Scientists & Technologists (India) 2017

Authors and Affiliations

  1. 1.Food Technology Area, College of Agricultural EngineeringUniversity of ValladolidPalenciaSpain

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