• Reduce text
  • Restore text size
  • Increase the text
  • Print

The secrets of a delicious baguette of bread: when perception chimes with mastication and hydration

Bread offers a broad range of complex perceptions that are difficult to predict because it is in the mouth and during mastication that the texture, flavours and aromas express themselves. INRA scientists and their colleagues have now identified the volatile compounds that are indicative of the release and perception of bread aromas and the physical properties that give rise to the perception of texture and aroma.

Pain.. © INRA, SLAGMULDER Christian
Updated on 11/09/2017
Published on 08/11/2017

Emblematic of France, the baguette – or bread in general – offer a vast range of textures and aromas that titillate many of our palettes.

When eating solid foods such as bread, numerous mechanisms linked to the oral process give rise to olfactory, gustatory and texture perceptions: broken down by mastication, hydrated and lubricated by saliva, solubilised or recombined, the food is gradually transformed in the mouth into a food bolus ready to be swallowed. These mechanisms govern the release kinetics of stimuli which are then likely to interact with sensory receptors, giving rise to perceptions and hence to the acceptability of products by consumers.

For this reason, knowledge of the concentrations of palatable and aromatic compounds in the initial product is not sufficient to explain the sensory differences that may exist between products in the same family but with different structural or textural characteristics. The perception of bread products is linked not only to their characteristics (composition, structure, interactions between ingredients, etc.) but also depends on the oral process implemented by an individual when consuming the product, and the integration of all signals, including sensory interactions.

Understanding the mechanisms that cause the release of compounds of interest and their associated perceptions that will enable the controlled formulation of breads which reflect the objectives and preferences of consumers, was the goal fixed by scientists at AgroParistech and INRA, working in partnership with the company Lessaffre.

Perception of texture: it’s all in the crumb – or nearly

The scientists thus demonstrated that the structure of crumb and its hydration capacity play a major role in texture perception. Statistical models enabled the identification and ranking of the physical and physicochemical mechanisms responsible for these perceptions. Sensory properties such as “soft", "dry" and "stodgy" led the way, and were more influenced by changes to the properties of the food bolus than by the initial characteristics of the breads.

Aroma release and perception: the importance of the oral process

The team also revealed the important role of the oral process in the dynamics of aroma release and perception during the consumption of bread, with dilution of the bolus by saliva being the principal factor that influences the release of aroma compounds. Analysis of the aroma compounds present in the air exhaled by the tasters enabled characterisation of their release at three key points in the oral process which gave rise to aroma perception.

Statistically significant links were established between the sensory and olfactory perceptions of bread and the ions associated with the aroma compounds released during the oral process. Eating the crust with the crumb contributed to a perception of "toasty" and "toasted cereal" notes linked to the molecules that form during cooking and are released from the first instants of mastication. Inversely, crumb alone gave rise to fermented and aromatic notes related to the molecules released more slowly in the mouth during hydration.

Although crumb structure mainly governs the texture perceptions via the properties of boluses during the oral process, the crust has a greater influence on aroma perceptions.

Overall, these findings will be crucial to the formulation of new products – which could be rich in fibre, gluten-free or other – or the development of breads for specific populations. The impact of crumb structure on the bread hydration rate is probably an essential property that could facilitate bolus formation in older people whose mastication may be impaired. On the other hand, this property could also be modulated for people suffering from dryness of mouth.

The breads and tasters, in practice

The scientists thus offered the tasting panel breads formulated using the same raw materials but displaying different crumb and crust structures.

Evaluation of the physicochemical and sensory characteristics of of the products, and of the boluses resulting from the transformation of bread in the mouth during consumption, made it possible to construct mathematical models and identify “tracer” aroma compounds. The latter were then followed in vivo in order to understand the impact of bread structure, and how it is broken down in the mouth, on aroma release and perception.

Contact(s)
Scientific contact(s):

Associated Division(s):
Attribute Type Value
node_id string 101371
parent_node_id string 232
main_node_id string 101371
contentobject_id string 94833
contentobject_version string 76
contentobject_is_published string 1
depth string 3
sort_field string 1
sort_order string 1
priority string 1
modified_subnode string 1511440214
path_string string '/1/2/232/101371/'
path_identification_string string 'sitedept/deptunite23'
remote_id string 'c26c322a977694c26e49bd0a5862eada'
is_hidden string 0
is_invisible string 0
name string 'Science for Food and Bioproduct Engineering'
data_map array Array(33)
>seo object[eZContentObjectAttribute] Object
>title object[eZContentObjectAttribute] Object
>bloc_xml_introduction object[eZContentObjectAttribute] Object
>bloc_xml_presentation object[eZContentObjectAttribute] Object
>shortchapo object[eZContentObjectAttribute] Object
>zoom_news object[eZContentObjectAttribute] Object
>url object[eZContentObjectAttribute] Object
>mail_contact object[eZContentObjectAttribute] Object
>contact object[eZContentObjectAttribute] Object
>address object[eZContentObjectAttribute] Object
>robots object[eZContentObjectAttribute] Object
>metadescription object[eZContentObjectAttribute] Object
>centercode object[eZContentObjectAttribute] Object
>pathprefix object[eZContentObjectAttribute] Object
>display_twitterbar object[eZContentObjectAttribute] Object
>url_communitylink1 object[eZContentObjectAttribute] Object
>logo_communitylink1 object[eZContentObjectAttribute] Object
>url_communitylink2 object[eZContentObjectAttribute] Object
>logo_communitylink2 object[eZContentObjectAttribute] Object
>url_communitylink3 object[eZContentObjectAttribute] Object
>logo_communitylink3 object[eZContentObjectAttribute] Object
>url_communitylink4 object[eZContentObjectAttribute] Object
>logo_communitylink4 object[eZContentObjectAttribute] Object
>bloc_edito_intro object[eZContentObjectAttribute] Object
>bloc_edito_presentation object[eZContentObjectAttribute] Object
>jobdisplay object[eZContentObjectAttribute] Object
>visual object[eZContentObjectAttribute] Object
>credits object[eZContentObjectAttribute] Object
>mentions object[eZContentObjectAttribute] Object
>arborh object[eZContentObjectAttribute] Object
>extranet_link object[eZContentObjectAttribute] Object
>jobteaser object[eZContentObjectAttribute] Object
>urlteaser object[eZContentObjectAttribute] Object
object object[eZContentObject] Object
>id string 94833
>section_id string 1
>owner_id string 14
>contentclass_id string 50
>name string 'Science for Food and Bioproduct Engineering'
>published string 1358170199
>modified string 1507642404
>current_version string 76
>status string 1
>remote_id string 'c620494800b25e79a632d8080941f9c6'
>language_mask string 6
>initial_language_id string 2
>current object[eZContentObjectVersion] Object
>versions array Array(10)
>author_array array Array(2)
>class_name string 'Département : Site'
>content_class object[eZContentClass] Object
>contentobject_attributes array Array(33)
>owner object[eZContentObject] Object
>related_contentobject_array array Array(0)
>related_contentobject_count string 0
>reverse_related_contentobject_array array Array(0)
>reverse_related_contentobject_count string 1
>linked_contentobject_array array Array(0)
>linked_contentobject_count string 0
>reverse_linked_contentobject_array array Array(0)
>reverse_linked_contentobject_count string 1
>embedded_contentobject_array array Array(0)
>embedded_contentobject_count string 0
>reverse_embedded_contentobject_array array Array(0)
>reverse_embedded_contentobject_count string 0
>can_read boolean true
>can_pdf boolean true
>can_diff boolean false
>can_create boolean false
>can_create_class_list array Array(0)
>can_edit boolean false
>can_translate boolean false
>can_remove boolean false
>can_move boolean false
>can_move_from boolean false
>can_view_embed boolean false
>data_map array Array(33)
>grouped_data_map array Array(1)
>main_parent_node_id string 232
>assigned_nodes array Array(1)
>parent_nodes array Array(1)
>main_node_id string 101371
>main_node object[eZContentObjectTreeNode] Object
>default_language string 'eng-GB'
>content_action_list boolean false
>class_identifier string 'inra_departement'
>class_group_id_list array Array(1)
>match_ingroup_id_list boolean false
>current_language string 'eng-GB'
>current_language_object object[eZContentLanguage] Object
>initial_language object[eZContentLanguage] Object
>initial_language_code string 'fre-FR'
>available_languages array Array(1)
>language_codes array Array(1)
>language_js_array string '[{"locale":"eng-GB","name":"English (United Kingdom)"}]'
>languages array Array(1)
>all_languages array Array(2)
>can_edit_languages array Array(0)
>can_create_languages array Array(0)
>always_available integer 0
>allowed_assign_section_list array Array(1)
>allowed_assign_state_id_list array Array(1)
>allowed_assign_state_list array Array(0)
>state_id_array array Array(1)
>state_identifier_array array Array(1)
subtree array Array(145)
>0 object[eZContentObjectTreeNode] Object
>1 object[eZContentObjectTreeNode] Object
>2 object[eZContentObjectTreeNode] Object
>3 object[eZContentObjectTreeNode] Object
>4 object[eZContentObjectTreeNode] Object
>5 object[eZContentObjectTreeNode] Object
>6 object[eZContentObjectTreeNode] Object
>7 object[eZContentObjectTreeNode] Object
>8 object[eZContentObjectTreeNode] Object
>9 object[eZContentObjectTreeNode] Object
>10 object[eZContentObjectTreeNode] Object
>11 object[eZContentObjectTreeNode] Object
>12 object[eZContentObjectTreeNode] Object
>13 object[eZContentObjectTreeNode] Object
>14 object[eZContentObjectTreeNode] Object
>15 object[eZContentObjectTreeNode] Object
>16 object[eZContentObjectTreeNode] Object
>17 object[eZContentObjectTreeNode] Object
>18 object[eZContentObjectTreeNode] Object
>19 object[eZContentObjectTreeNode] Object
>20 object[eZContentObjectTreeNode] Object
>21 object[eZContentObjectTreeNode] Object
>22 object[eZContentObjectTreeNode] Object
>23 object[eZContentObjectTreeNode] Object
>24 object[eZContentObjectTreeNode] Object
>25 object[eZContentObjectTreeNode] Object
>26 object[eZContentObjectTreeNode] Object
>27 object[eZContentObjectTreeNode] Object
>28 object[eZContentObjectTreeNode] Object
>29 object[eZContentObjectTreeNode] Object
>30 object[eZContentObjectTreeNode] Object
>31 object[eZContentObjectTreeNode] Object
>32 object[eZContentObjectTreeNode] Object
>33 object[eZContentObjectTreeNode] Object
>34 object[eZContentObjectTreeNode] Object
>35 object[eZContentObjectTreeNode] Object
>36 object[eZContentObjectTreeNode] Object
>37 object[eZContentObjectTreeNode] Object
>38 object[eZContentObjectTreeNode] Object
>39 object[eZContentObjectTreeNode] Object
>40 object[eZContentObjectTreeNode] Object
>41 object[eZContentObjectTreeNode] Object
>42 object[eZContentObjectTreeNode] Object
>43 object[eZContentObjectTreeNode] Object
>44 object[eZContentObjectTreeNode] Object
>45 object[eZContentObjectTreeNode] Object
>46 object[eZContentObjectTreeNode] Object
>47 object[eZContentObjectTreeNode] Object
>48 object[eZContentObjectTreeNode] Object
>49 object[eZContentObjectTreeNode] Object
>50 object[eZContentObjectTreeNode] Object
>51 object[eZContentObjectTreeNode] Object
>52 object[eZContentObjectTreeNode] Object
>53 object[eZContentObjectTreeNode] Object
>54 object[eZContentObjectTreeNode] Object
>55 object[eZContentObjectTreeNode] Object
>56 object[eZContentObjectTreeNode] Object
>57 object[eZContentObjectTreeNode] Object
>58 object[eZContentObjectTreeNode] Object
>59 object[eZContentObjectTreeNode] Object
>60 object[eZContentObjectTreeNode] Object
>61 object[eZContentObjectTreeNode] Object
>62 object[eZContentObjectTreeNode] Object
>63 object[eZContentObjectTreeNode] Object
>64 object[eZContentObjectTreeNode] Object
>65 object[eZContentObjectTreeNode] Object
>66 object[eZContentObjectTreeNode] Object
>67 object[eZContentObjectTreeNode] Object
>68 object[eZContentObjectTreeNode] Object
>69 object[eZContentObjectTreeNode] Object
>70 object[eZContentObjectTreeNode] Object
>71 object[eZContentObjectTreeNode] Object
>72 object[eZContentObjectTreeNode] Object
>73 object[eZContentObjectTreeNode] Object
>74 object[eZContentObjectTreeNode] Object
>75 object[eZContentObjectTreeNode] Object
>76 object[eZContentObjectTreeNode] Object
>77 object[eZContentObjectTreeNode] Object
>78 object[eZContentObjectTreeNode] Object
>79 object[eZContentObjectTreeNode] Object
>80 object[eZContentObjectTreeNode] Object
>81 object[eZContentObjectTreeNode] Object
>82 object[eZContentObjectTreeNode] Object
>83 object[eZContentObjectTreeNode] Object
>84 object[eZContentObjectTreeNode] Object
>85 object[eZContentObjectTreeNode] Object
>86 object[eZContentObjectTreeNode] Object
>87 object[eZContentObjectTreeNode] Object
>88 object[eZContentObjectTreeNode] Object
>89 object[eZContentObjectTreeNode] Object
>90 object[eZContentObjectTreeNode] Object
>91 object[eZContentObjectTreeNode] Object
>92 object[eZContentObjectTreeNode] Object
>93 object[eZContentObjectTreeNode] Object
>94 object[eZContentObjectTreeNode] Object
>95 object[eZContentObjectTreeNode] Object
>96 object[eZContentObjectTreeNode] Object
>97 object[eZContentObjectTreeNode] Object
>98 object[eZContentObjectTreeNode] Object
>99 object[eZContentObjectTreeNode] Object
>100 object[eZContentObjectTreeNode] Object
>101 object[eZContentObjectTreeNode] Object
>102 object[eZContentObjectTreeNode] Object
>103 object[eZContentObjectTreeNode] Object
>104 object[eZContentObjectTreeNode] Object
>105 object[eZContentObjectTreeNode] Object
>106 object[eZContentObjectTreeNode] Object
>107 object[eZContentObjectTreeNode] Object
>108 object[eZContentObjectTreeNode] Object
>109 object[eZContentObjectTreeNode] Object
>110 object[eZContentObjectTreeNode] Object
>111 object[eZContentObjectTreeNode] Object
>112 object[eZContentObjectTreeNode] Object
>113 object[eZContentObjectTreeNode] Object
>114 object[eZContentObjectTreeNode] Object
>115 object[eZContentObjectTreeNode] Object
>116 object[eZContentObjectTreeNode] Object
>117 object[eZContentObjectTreeNode] Object
>118 object[eZContentObjectTreeNode] Object
>119 object[eZContentObjectTreeNode] Object
>120 object[eZContentObjectTreeNode] Object
>121 object[eZContentObjectTreeNode] Object
>122 object[eZContentObjectTreeNode] Object
>123 object[eZContentObjectTreeNode] Object
>124 object[eZContentObjectTreeNode] Object
>125 object[eZContentObjectTreeNode] Object
>126 object[eZContentObjectTreeNode] Object
>127 object[eZContentObjectTreeNode] Object
>128 object[eZContentObjectTreeNode] Object
>129 object[eZContentObjectTreeNode] Object
>130 object[eZContentObjectTreeNode] Object
>131 object[eZContentObjectTreeNode] Object
>132 object[eZContentObjectTreeNode] Object
>133 object[eZContentObjectTreeNode] Object
>134 object[eZContentObjectTreeNode] Object
>135 object[eZContentObjectTreeNode] Object
>136 object[eZContentObjectTreeNode] Object
>137 object[eZContentObjectTreeNode] Object
>138 object[eZContentObjectTreeNode] Object
>139 object[eZContentObjectTreeNode] Object
>140 object[eZContentObjectTreeNode] Object
>141 object[eZContentObjectTreeNode] Object
>142 object[eZContentObjectTreeNode] Object
>143 object[eZContentObjectTreeNode] Object
>144 object[eZContentObjectTreeNode] Object
children array Array(9)
>0 object[eZContentObjectTreeNode] Object
>1 object[eZContentObjectTreeNode] Object
>2 object[eZContentObjectTreeNode] Object
>3 object[eZContentObjectTreeNode] Object
>4 object[eZContentObjectTreeNode] Object
>5 object[eZContentObjectTreeNode] Object
>6 object[eZContentObjectTreeNode] Object
>7 object[eZContentObjectTreeNode] Object
>8 object[eZContentObjectTreeNode] Object
children_count string 9
view_count integer 0
contentobject_version_object object[eZContentObjectVersion] Object
>id string 448043
>contentobject_id string 94833
>creator_id string 111629
>version string 76
>status string 1
>created string 1507641776
>modified string 1507642402
>workflow_event_pos string 0
>user_id string 0
>language_mask string 7
>initial_language_id string 4
>creator object[eZContentObject] Object
>name string 'Caractérisation et élaboration des produits issus de l’agriculture'
>version_name string 'Science for Food and Bioproduct Engineering'
>main_parent_node_id string 232
>contentobject_attributes array Array(33)
>related_contentobject_array array Array(0)
>reverse_related_object_list array Array(0)
>parent_nodes array Array(1)
>can_read boolean false
>can_remove boolean false
>data_map array Array(33)
>node_assignments array Array(1)
>contentobject object[eZContentObject] Object
>initial_language object[eZContentLanguage] Object
>language_list array Array(2)
>translation boolean false
>translation_list array Array(2)
>complete_translation_list array Array(2)
>temp_main_node object[eZContentObjectTreeNode] Object
sort_array array Array(1)
>0 array Array(2)
can_read boolean true
can_pdf boolean true
can_create boolean false
can_edit boolean false
can_hide boolean false
can_remove boolean false
can_move boolean false
can_move_from boolean false
can_add_location boolean false
can_remove_location boolean false
can_view_embed boolean false
is_main boolean true
creator object[eZContentObject] Object
>id string 111629
>section_id string 2
>owner_id string 2339
>contentclass_id string 4
>name string 'Manchado-Sarni Pascale'
>published string 1362733294
>modified string 1479294604
>current_version string 2
>status string 1
>remote_id string '2c2834c1f7ce86b973f0aa1a579ed87e'
>language_mask string 3
>initial_language_id string 2
>current object[eZContentObjectVersion] Object
>versions array Array(2)
>author_array array Array(2)
>class_name string 'User'
>content_class object[eZContentClass] Object
>contentobject_attributes array Array(5)
>owner object[eZContentObject] Object
>related_contentobject_array array Array(0)
>related_contentobject_count string 0
>reverse_related_contentobject_array array Array(0)
>reverse_related_contentobject_count string 0
>linked_contentobject_array array Array(0)
>linked_contentobject_count string 0
>reverse_linked_contentobject_array array Array(0)
>reverse_linked_contentobject_count string 0
>embedded_contentobject_array array Array(0)
>embedded_contentobject_count string 0
>reverse_embedded_contentobject_array array Array(0)
>reverse_embedded_contentobject_count string 0
>can_read boolean false
>can_pdf boolean false
>can_diff boolean false
>can_create boolean false
>can_create_class_list array Array(0)
>can_edit boolean false
>can_translate boolean false
>can_remove boolean false
>can_move boolean false
>can_move_from boolean false
>can_view_embed boolean false
>data_map array Array(5)
>grouped_data_map array Array(1)
>main_parent_node_id string 312
>assigned_nodes array Array(2)
>parent_nodes array Array(2)
>main_node_id string 118313
>main_node object[eZContentObjectTreeNode] Object
>default_language string 'eng-GB'
>content_action_list boolean false
>class_identifier string 'user'
>class_group_id_list array Array(1)
>match_ingroup_id_list boolean false
>current_language string 'fre-FR'
>current_language_object object[eZContentLanguage] Object
>initial_language object[eZContentLanguage] Object
>initial_language_code string 'fre-FR'
>available_languages array Array(0)
>language_codes array Array(0)
>language_js_array boolean false
>languages array Array(0)
>all_languages array Array(1)
>can_edit_languages array Array(0)
>can_create_languages array Array(0)
>always_available integer 1
>allowed_assign_section_list array Array(1)
>allowed_assign_state_id_list array Array(1)
>allowed_assign_state_list array Array(0)
>state_id_array array Array(1)
>state_identifier_array array Array(1)
path_with_names string 'sitedept/deptunite23'
path array Array(2)
>0 object[eZContentObjectTreeNode] Object
>1 object[eZContentObjectTreeNode] Object
path_array array Array(4)
>0 integer 1
>1 integer 2
>2 integer 232
>3 integer 101371
parent object[eZContentObjectTreeNode] Object
>node_id string 232
>parent_node_id string 2
>main_node_id string 232
>contentobject_id string 219
>contentobject_version string 64
>contentobject_is_published string 1
>depth string 2
>sort_field string 9
>sort_order string 1
>priority string 2
>modified_subnode string 1511444189
>path_string string '/1/2/232/'
>path_identification_string string 'sitedept'
>remote_id string '702cee6c5bb3a0f2459eb4705cbf71aa'
>is_hidden string 0
>is_invisible string 0
>name string 'INRA Divisions'
>data_map array Array(23)
>object object[eZContentObject] Object
>subtree array Array(833)
>children array Array(17)
>children_count string 17
>view_count integer 0
>contentobject_version_object object[eZContentObjectVersion] Object
>sort_array array Array(1)
>can_read boolean true
>can_pdf boolean true
>can_create boolean false
>can_edit boolean false
>can_hide boolean false
>can_remove boolean false
>can_move boolean false
>can_move_from boolean false
>can_add_location boolean false
>can_remove_location boolean false
>can_view_embed boolean false
>is_main boolean true
>creator object[eZContentObject] Object
>path_with_names string 'sitedept'
>path array Array(1)
>path_array array Array(3)
>parent object[eZContentObjectTreeNode] Object
>url string 'sitedept'
>url_alias string 'sitedept'
>class_identifier string 'inra_site_departements'
>class_name string 'Départements : Dispatch'
>hidden_invisible_string string '-/-'
>hidden_status_string string 'Visible'
>classes_js_array string '[{"classID":57,"name":"Actualit\u00e9"},{"classID":131,"name":"Annuaire : Rubrique"},{"classID":16,"name":"Article"},{"classID":17,"name":"Article (main-page)"},{"classID":18,"name":"Article (sub-page)"},{"classID":42,"name":"Banner"},{"classID":19,"name":"Blog"},{"classID":81,"name":"Blog : Billet"},{"classID":101,"name":"Blog : Billet marque blanche"},{"classID":62,"name":"Blog : Blog"},{"classID":99,"name":"Blog : Blog marque blanche"},{"classID":82,"name":"Blog : Rubrique additionnelle"},{"classID":20,"name":"Blog post"},{"classID":127,"name":"Br\u00e8ve"},{"classID":60,"name":"Carrousel : Actu de carrousel"},{"classID":143,"name":"Carrousel : Diapositive autonome"},{"classID":168,"name":"Carrousels"},{"classID":56,"name":"Centre : Site"},{"classID":94,"name":"Centres : Dispatch"},{"classID":13,"name":"Comment"},{"classID":50,"name":"D\u00e9partement : Site"},{"classID":95,"name":"D\u00e9partements : Dispatch"},{"classID":71,"name":"Digital Asset (Media)"},{"classID":24,"name":"Documentation page"},{"classID":154,"name":"Dossier"},{"classID":116,"name":"Dossier 'Parutions'"},{"classID":76,"name":"Dossier 'Quizs'"},{"classID":169,"name":"Dossier actu secondaire"},{"classID":89,"name":"Ev\u00e9nement"},{"classID":88,"name":"Ev\u00e9nements : Racine"},{"classID":40,"name":"Event"},{"classID":41,"name":"Event calendar"},{"classID":22,"name":"Feedback form"},{"classID":28,"name":"File"},{"classID":29,"name":"Flash"},{"classID":1,"name":"Folder"},{"classID":37,"name":"Forum"},{"classID":39,"name":"Forum reply"},{"classID":38,"name":"Forum topic"},{"classID":43,"name":"Forums"},{"classID":23,"name":"Frontpage"},{"classID":35,"name":"Gallery"},{"classID":36,"name":"Geo Article"},{"classID":145,"name":"Glossaire : Mot"},{"classID":30,"name":"Image"},{"classID":25,"name":"Infobox"},{"classID":130,"name":"Instit : Fiche Annuaire"},{"classID":140,"name":"Instit : Nous trouver"},{"classID":48,"name":"Instit : Racine"},{"classID":133,"name":"Instit : Rubrique 'Actu'"},{"classID":139,"name":"Instit : Th\u00e8me 'Annuaire'"},{"classID":134,"name":"Instit : Th\u00e8me 'Missions'"},{"classID":137,"name":"Instit : Th\u00e8me 'Organisation'"},{"classID":135,"name":"Instit : Th\u00e8me 'Rep\u00e8res'"},{"classID":136,"name":"Instit : Th\u00e8me 'Strat\u00e9gie'"},{"classID":46,"name":"Kiosque : Racine"},{"classID":31,"name":"Link"},{"classID":201,"name":"Logo"},{"classID":72,"name":"Magazine"},{"classID":142,"name":"Mediath\u00e8que : Mot cl\u00e9"},{"classID":149,"name":"Mediath\u00e8que : Playlist"},{"classID":52,"name":"Mediath\u00e8que : Racine"},{"classID":150,"name":"Mediath\u00e8que : Rubrique 'Mots cl\u00e9s'"},{"classID":148,"name":"Mediath\u00e8que : Rubrique 'Playlist'"},{"classID":141,"name":"Mediath\u00e8que : Rubrique 'Zoom'"},{"classID":199,"name":"Mediath\u00e8que : Rubrique simple"},{"classID":121,"name":"M\u00e9taprogramme : Site"},{"classID":96,"name":"M\u00e9taprogrammes : Dispatch"},{"classID":161,"name":"Mon Compte"},{"classID":124,"name":"Mon Compte : Utilisateur Front"},{"classID":26,"name":"Multicalendar"},{"classID":119,"name":"Newsletter : Abonn\u00e9"},{"classID":104,"name":"Newsletter : Bloc s\u00e9l\u00e9ction"},{"classID":105,"name":"Newsletter : Bloc texte"},{"classID":103,"name":"Newsletter : Campagne simple"},{"classID":102,"name":"Newsletter : Campagne sp\u00e9ciale"},{"classID":120,"name":"Newsletter : Dossier 'Abonn\u00e9s'"},{"classID":122,"name":"Newsletter : Dossier 'D\u00e9sinscrits'"},{"classID":125,"name":"Newsletter : Dossier 'Entreprises'"},{"classID":126,"name":"Newsletter : Entreprise"},{"classID":100,"name":"Newsletter : Newsletter"},{"classID":92,"name":"Parution"},{"classID":27,"name":"Poll"},{"classID":47,"name":"Portail : Canal"},{"classID":45,"name":"Portail : Racine"},{"classID":53,"name":"Portail : Th\u00e8me"},{"classID":185,"name":"Portrait"},{"classID":163,"name":"Portrait Old"},{"classID":87,"name":"Presse : Accueil public"},{"classID":108,"name":"Presse : Biographie"},{"classID":91,"name":"Presse : Communiqu\u00e9"},{"classID":118,"name":"Presse : Dossier 'Biographies'"},{"classID":112,"name":"Presse : Dossier 'Communiqu\u00e9s'"},{"classID":115,"name":"Presse : Dossier 'Dossiers de presse'"},{"classID":203,"name":"Presse : Dossier 'Kits de presse'"},{"classID":107,"name":"Presse : Dossier de presse"},{"classID":63,"name":"Presse : Inscription"},{"classID":205,"name":"Presse : Kit de presse"},{"classID":51,"name":"Presse : Racine"},{"classID":21,"name":"Product"},{"classID":32,"name":"Quicktime"},{"classID":73,"name":"Quiz : Accueil"},{"classID":74,"name":"Quiz : Question"},{"classID":195,"name":"Quiz : question - r\u00e9ponse"},{"classID":75,"name":"Quiz : R\u00e9ponse"},{"classID":69,"name":"Racine"},{"classID":34,"name":"Real video"},{"classID":179,"name":"RH : Annonce permanente"},{"classID":176,"name":"RH : Annonce temporaire"},{"classID":181,"name":"RH : Article simple"},{"classID":172,"name":"RH : Campagne permanente"},{"classID":180,"name":"RH : Campagne temporaire"},{"classID":207,"name":"RH : Connexion Espagnole"},{"classID":187,"name":"RH : Discipline scientifique"},{"classID":193,"name":"RH : Domaine professionnel"},{"classID":165,"name":"RH : dossier 'Portraits'"},{"classID":177,"name":"RH : Dossier Reportages"},{"classID":183,"name":"RH : Fichier description"},{"classID":184,"name":"RH : Fichier inscription"},{"classID":178,"name":"RH : Folder annonces"},{"classID":197,"name":"RH : mobilit\u00e9 internationale"},{"classID":171,"name":"RH : Proc\u00e9dure"},{"classID":49,"name":"RH : Racine"},{"classID":175,"name":"RH : R\u00e9gion"},{"classID":167,"name":"RH : Rubrique"},{"classID":164,"name":"RH : Rubrique 'Actu'"},{"classID":170,"name":"RH : Rubrique emploi"},{"classID":174,"name":"RH : textes candidatures"},{"classID":189,"name":"RH : Type d'annonce"},{"classID":191,"name":"RH : Type nature de contrat"},{"classID":106,"name":"RSS : Flux"},{"classID":129,"name":"Rubrique texte simple"},{"classID":146,"name":"SEO : Robots txt"},{"classID":147,"name":"SEO : Sitemap xml"},{"classID":151,"name":"SEO : Valeurs par d\u00e9faut"},{"classID":44,"name":"Silverlight"},{"classID":166,"name":"Sites : Rubrique"},{"classID":33,"name":"Windows media"},{"classID":182,"name":"Xiti : Identifiants Home"}]'
>is_container string 1
url string 'sitedept/deptunite23'
url_alias string 'sitedept/deptunite23'
class_identifier string 'inra_departement'
class_name string 'Département : Site'
hidden_invisible_string string '-/-'
hidden_status_string string 'Visible'
classes_js_array string '[{"classID":57,"name":"Actualit\u00e9"},{"classID":131,"name":"Annuaire : Rubrique"},{"classID":16,"name":"Article"},{"classID":17,"name":"Article (main-page)"},{"classID":18,"name":"Article (sub-page)"},{"classID":42,"name":"Banner"},{"classID":19,"name":"Blog"},{"classID":81,"name":"Blog : Billet"},{"classID":101,"name":"Blog : Billet marque blanche"},{"classID":62,"name":"Blog : Blog"},{"classID":99,"name":"Blog : Blog marque blanche"},{"classID":82,"name":"Blog : Rubrique additionnelle"},{"classID":20,"name":"Blog post"},{"classID":127,"name":"Br\u00e8ve"},{"classID":60,"name":"Carrousel : Actu de carrousel"},{"classID":143,"name":"Carrousel : Diapositive autonome"},{"classID":168,"name":"Carrousels"},{"classID":56,"name":"Centre : Site"},{"classID":94,"name":"Centres : Dispatch"},{"classID":13,"name":"Comment"},{"classID":50,"name":"D\u00e9partement : Site"},{"classID":95,"name":"D\u00e9partements : Dispatch"},{"classID":71,"name":"Digital Asset (Media)"},{"classID":24,"name":"Documentation page"},{"classID":154,"name":"Dossier"},{"classID":116,"name":"Dossier 'Parutions'"},{"classID":76,"name":"Dossier 'Quizs'"},{"classID":169,"name":"Dossier actu secondaire"},{"classID":89,"name":"Ev\u00e9nement"},{"classID":88,"name":"Ev\u00e9nements : Racine"},{"classID":40,"name":"Event"},{"classID":41,"name":"Event calendar"},{"classID":22,"name":"Feedback form"},{"classID":28,"name":"File"},{"classID":29,"name":"Flash"},{"classID":1,"name":"Folder"},{"classID":37,"name":"Forum"},{"classID":39,"name":"Forum reply"},{"classID":38,"name":"Forum topic"},{"classID":43,"name":"Forums"},{"classID":23,"name":"Frontpage"},{"classID":35,"name":"Gallery"},{"classID":36,"name":"Geo Article"},{"classID":145,"name":"Glossaire : Mot"},{"classID":30,"name":"Image"},{"classID":25,"name":"Infobox"},{"classID":130,"name":"Instit : Fiche Annuaire"},{"classID":140,"name":"Instit : Nous trouver"},{"classID":48,"name":"Instit : Racine"},{"classID":133,"name":"Instit : Rubrique 'Actu'"},{"classID":139,"name":"Instit : Th\u00e8me 'Annuaire'"},{"classID":134,"name":"Instit : Th\u00e8me 'Missions'"},{"classID":137,"name":"Instit : Th\u00e8me 'Organisation'"},{"classID":135,"name":"Instit : Th\u00e8me 'Rep\u00e8res'"},{"classID":136,"name":"Instit : Th\u00e8me 'Strat\u00e9gie'"},{"classID":46,"name":"Kiosque : Racine"},{"classID":31,"name":"Link"},{"classID":201,"name":"Logo"},{"classID":72,"name":"Magazine"},{"classID":142,"name":"Mediath\u00e8que : Mot cl\u00e9"},{"classID":149,"name":"Mediath\u00e8que : Playlist"},{"classID":52,"name":"Mediath\u00e8que : Racine"},{"classID":150,"name":"Mediath\u00e8que : Rubrique 'Mots cl\u00e9s'"},{"classID":148,"name":"Mediath\u00e8que : Rubrique 'Playlist'"},{"classID":141,"name":"Mediath\u00e8que : Rubrique 'Zoom'"},{"classID":199,"name":"Mediath\u00e8que : Rubrique simple"},{"classID":121,"name":"M\u00e9taprogramme : Site"},{"classID":96,"name":"M\u00e9taprogrammes : Dispatch"},{"classID":161,"name":"Mon Compte"},{"classID":124,"name":"Mon Compte : Utilisateur Front"},{"classID":26,"name":"Multicalendar"},{"classID":119,"name":"Newsletter : Abonn\u00e9"},{"classID":104,"name":"Newsletter : Bloc s\u00e9l\u00e9ction"},{"classID":105,"name":"Newsletter : Bloc texte"},{"classID":103,"name":"Newsletter : Campagne simple"},{"classID":102,"name":"Newsletter : Campagne sp\u00e9ciale"},{"classID":120,"name":"Newsletter : Dossier 'Abonn\u00e9s'"},{"classID":122,"name":"Newsletter : Dossier 'D\u00e9sinscrits'"},{"classID":125,"name":"Newsletter : Dossier 'Entreprises'"},{"classID":126,"name":"Newsletter : Entreprise"},{"classID":100,"name":"Newsletter : Newsletter"},{"classID":92,"name":"Parution"},{"classID":27,"name":"Poll"},{"classID":47,"name":"Portail : Canal"},{"classID":45,"name":"Portail : Racine"},{"classID":53,"name":"Portail : Th\u00e8me"},{"classID":185,"name":"Portrait"},{"classID":163,"name":"Portrait Old"},{"classID":87,"name":"Presse : Accueil public"},{"classID":108,"name":"Presse : Biographie"},{"classID":91,"name":"Presse : Communiqu\u00e9"},{"classID":118,"name":"Presse : Dossier 'Biographies'"},{"classID":112,"name":"Presse : Dossier 'Communiqu\u00e9s'"},{"classID":115,"name":"Presse : Dossier 'Dossiers de presse'"},{"classID":203,"name":"Presse : Dossier 'Kits de presse'"},{"classID":107,"name":"Presse : Dossier de presse"},{"classID":63,"name":"Presse : Inscription"},{"classID":205,"name":"Presse : Kit de presse"},{"classID":51,"name":"Presse : Racine"},{"classID":21,"name":"Product"},{"classID":32,"name":"Quicktime"},{"classID":73,"name":"Quiz : Accueil"},{"classID":74,"name":"Quiz : Question"},{"classID":195,"name":"Quiz : question - r\u00e9ponse"},{"classID":75,"name":"Quiz : R\u00e9ponse"},{"classID":69,"name":"Racine"},{"classID":34,"name":"Real video"},{"classID":179,"name":"RH : Annonce permanente"},{"classID":176,"name":"RH : Annonce temporaire"},{"classID":181,"name":"RH : Article simple"},{"classID":172,"name":"RH : Campagne permanente"},{"classID":180,"name":"RH : Campagne temporaire"},{"classID":207,"name":"RH : Connexion Espagnole"},{"classID":187,"name":"RH : Discipline scientifique"},{"classID":193,"name":"RH : Domaine professionnel"},{"classID":165,"name":"RH : dossier 'Portraits'"},{"classID":177,"name":"RH : Dossier Reportages"},{"classID":183,"name":"RH : Fichier description"},{"classID":184,"name":"RH : Fichier inscription"},{"classID":178,"name":"RH : Folder annonces"},{"classID":197,"name":"RH : mobilit\u00e9 internationale"},{"classID":171,"name":"RH : Proc\u00e9dure"},{"classID":49,"name":"RH : Racine"},{"classID":175,"name":"RH : R\u00e9gion"},{"classID":167,"name":"RH : Rubrique"},{"classID":164,"name":"RH : Rubrique 'Actu'"},{"classID":170,"name":"RH : Rubrique emploi"},{"classID":174,"name":"RH : textes candidatures"},{"classID":189,"name":"RH : Type d'annonce"},{"classID":191,"name":"RH : Type nature de contrat"},{"classID":106,"name":"RSS : Flux"},{"classID":129,"name":"Rubrique texte simple"},{"classID":146,"name":"SEO : Robots txt"},{"classID":147,"name":"SEO : Sitemap xml"},{"classID":151,"name":"SEO : Valeurs par d\u00e9faut"},{"classID":44,"name":"Silverlight"},{"classID":166,"name":"Sites : Rubrique"},{"classID":33,"name":"Windows media"},{"classID":182,"name":"Xiti : Identifiants Home"}]'
is_container string 1
Science for Food and Bioproduct Engineering
Associated Centre(s):
Versailles-Grignon

Breads and tasters, in practice

Scientists have submitted to the tasters breads formulated from the same raw materials but with different structures of crumbs and crusts.

The evaluation of the physicochemical and sensory characteristics of the products and bowls resulting from the processing of breads in the mouth during their consumption made it possible to construct mathematical models and to identify "tracer" flavor molecules. The latter were then followed in vivo in order to understand the impact of the structure of the breads and their destructuring in the mouth, on the release and the perception of the aromas.

Find out more

Jourdren S. et al. 2017. Gaining deeper insight into aroma perception: An integrative study of the oral processing of breads with different structures. Food Research International, 92, 119.

Jourdren S. et al. 2017. Effect of Bread Crumb and Crust Structure on the in Vivo Release of Volatiles and the Dynamics of Aroma Perception. J. Agric. Food Chem., 65: 3330