Grégory Véricel

Country: France
Company: CHOPIN Technologies
Connect: LinkedIN

Biography

Got a Bachelor’s degree in Biology from the University Lyon 1 in 2004.
Hold an Engineering degree in Biochemistry and food industry from French Engineering school Polytech’ Clermont-Ferrand, graduated in 2007.
Worked on various research applications in France, Canada and the UK from 2004 to 2006.
In 2007 and 2008, worked on the development of biodegradable and bio-sourced plastics with the multinational company Limagrain.
Joined CHOPIN Technologies in 2009 as Products Manager to develop business in the USA and Canada, based in Goshen, NY, USA.
After 3 years successfully developing the North American business, came back in 2012 to CHOPIN head office in France to join the Marketing Department as global products manager.
Since 2015, handles all aspects of operational marketing for CHOPIN Technologies’ products.

BPC2019

Selection and Evaluation of Rice Flours for Gluten-Free Cookies

More and more people are now choosing a gluten-free diet. Over the past decade, various products have been utilized to replace wheat, which is high in gluten. Rice is often chosen for its neutral flavor, its whiteness, it is easy to digest, low in sodium, and has hypoallergenic properties.

The rice flours available on the market vary widely in the terms of suitability to replace wheat flour. This complicates their use in gluten-free preparations, since it has a direct impact on the quality of the finished products. The goals of this study were to determine the rheological properties of different rice flours using the Mixolab, evaluate the impact of the rice origin on cookie quality and draw correlations between rheological data and cookie characteristics.

Significant variations during mixing, pasting and gelling were noticed among the rice flours depending on their botanical origin. Mixolab Cmax, Cs, C2, C3, C4 and C5 varied from 0.59 to 3.33 Nm, 0.26 to 1.20 Nm, 0.31 to 1.44 Nm, 0.93 to 2.54 Nm, 0.74 to 1.93 Nm and 1.42 to 3.29 Nm, respectively. Looking at the results of the cookie tests baking, one can notice that all rice flours were able to produce cookies with correct shape and color. However, significant variations in cookie weight and thickness were noticed, in agreement with the rheological findings using Mixolab. Cookie weight and thickness varied, respectively, from 9.5 to 11.60 g and 48 to 64 mm. Results also revealed high correlations between technological tests results and rheological Mixolab characteristics. Correlation coefficients (R²) were 0.88 and 0.64 between cookie weight and C5 and cookie thickness and C4, respectively.

This study confirmed the strong variability in the quality of rice flours depending on their botanical origin. Cookie baking tests revealed significant differences between cookies in terms of weight and thickness. Significant correlations were found between rheological and test baking performances.

G. Tawil, O. Le Brun, A. Dubat and G. Vericel
CHOPIN Technologies, Villeneuve-La-Garenne, France

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