1 Subjects: “...natural compounds...”

2 Subjects: “...natural compounds...”

3 Subjects: “...plant natural product...”

4 Subjects: “...natural products...”

5

6 Subjects: “...natural products...”

7 Subjects: “...natural barrier...”

8 Subjects: “...natural compounds...”

9 Subjects: “...natural filler...”

10 Subjects: “...natural filler...”

11 “... with natural components extracted from food. Polysaccharides, starch, protein, pectin, and fibre are major...”

12 “... their former extent and diversity. Natural regeneration following harvesting or during post-agricultural...”

13 “...Spruce budworm (Choristoneura fumiferana (Clem.)) outbreaks are a dominant natural disturbance...”