Air-water interface Capital social (Sociología)--Perú Drainage Foam Foam stability Gums HORMIGÓN Helianthus Hydrocolloid Participación ciudadana--Perú Polysaccharide Protein Redes sociales--Perú Sociedad civil--Perú Valores sociales--Perú chemical structure conference paper flow kinetics foam foam stability pH polysaccharide protein hydrolysis protein interaction protein isolation stabilizing agent sunflower vegetable protein viscosity xanthan