diff --git a/api/serializers/declaration.py b/api/serializers/declaration.py
index 8f03e892..3f78a6a9 100644
--- a/api/serializers/declaration.py
+++ b/api/serializers/declaration.py
@@ -360,10 +360,10 @@ def get_galenic_formulation(self, obj):
     def get_declared_plants(self, obj):
         return [
             {
-                "nom": declared_plant.plant.name,
-                "partie": declared_plant.used_part.name,
-                "preparation": declared_plant.preparation.name,
-                "quantité_par_djr": declared_plant.quantity,
+                "nom": declared_plant.plant.name if declared_plant.plant else None,
+                "partie": declared_plant.used_part.name if declared_plant.used_part else None,
+                "preparation": declared_plant.preparation.name if declared_plant.preparation else None,
+                "quantité_par_djr": declared_plant.quantity if declared_plant.quantity else None,
                 "unite": declared_plant.unit.name,
             }
             if declared_plant.unit
@@ -374,8 +374,10 @@ def get_declared_plants(self, obj):
     def get_declared_microorganisms(self, obj):
         return [
             {
-                "genre": declared_microorganism.microorganism.genus,
-                "espece": declared_microorganism.microorganism.species,
+                "genre": declared_microorganism.microorganism.genus if declared_microorganism.microorganism else None,
+                "espece": declared_microorganism.microorganism.species
+                if declared_microorganism.microorganism
+                else None,
                 "souche": declared_microorganism.strain
                 if declared_microorganism.strain
                 else None,  # elle est normalement obligatoire mais quelques entrées ont pu être rentrées avant le required
@@ -392,7 +394,7 @@ def get_declared_substances(self, obj):
                 "quantité_par_djr": declared_substance.quantity,
                 "unite": declared_substance.unit.name,
             }
-            if declared_substance.substance.name and declared_substance.quantity and declared_substance.unit
+            if declared_substance.substance and declared_substance.quantity and declared_substance.unit
             else {}
             for declared_substance in obj.declared_substances.all()
         ]
diff --git a/data/etl/extractor.py b/data/etl/extractor.py
index 4e9d04d8..e001c3e9 100644
--- a/data/etl/extractor.py
+++ b/data/etl/extractor.py
@@ -60,6 +60,7 @@ def clean_dataset(self):
         # ---------------------------------------------------
         self.df = self.df[columns_to_keep]
         self.filter_dataframe_with_schema_cols()
+        self.df = self.df.replace({"\n": " ", "\r": " "}, regex=True)
 
     def is_valid(self) -> bool:
         files = prepare_file_validata_post_request(self.df)