Biopolymer systems Biopolymers Carbohydrate Conformation Caseins Colloids Complex Mixtures Cruciform welded joint FRANC 2D/3D Fatigue Flour Food Technology Lack of penetration Milk Proteins Mixtures Plant Extracts Plants Protein Rheological properties SIF Starch Viscosity biopolymer casein chemistry colloid conformation drug mixture flour food handling milk protein