Escudo de la República de Colombia
Panel de Accesibilidad

Laboratory for physicochemical analysis of foods

Thanks to the work team made up of two qualified operators, two technicians, a specialized professional and a teacher, the laboratory carries out research, teaching and extension activities. It has several work areas, infrastructure and equipment for the development of proximal analysis, physicochemical indexes of food quality, instrumental and sensory-instrumental analysis. It has an area for receiving samples, washing material and storing reagents, as support areas.
The laboratory provides analytical services for academic and research purposes to internal and external users. In addition, it supports subjects and formative research work of the Universidad Nacional in food science and technology.
It is part of the laboratories that benefited from the support of the National Metrology Institute (INM) in the Colombia Mide project, through which the quality management system was updated and improved under the guidelines of ISO 17025:2017, with which it seeks to join the National Laboratory Network and expand the scope of service provision. The laboratory is currently developing a special cooperation agreement between the Instituto Nacional de Metrología - INM and the Instituto de Ciencia y Tecnología de Alimentos - ICTA Universidad Nacional de Cololmbia - UNAL, which seeks to generate analysis guides for the determination of quality parameters in foods of agroindustrial importance in Colombia, especially total fat content in Hass avocados.

Laboratory services

  • Free Acidity in Pollen (Acid-Base Titration)
  • Free and Lactonic Acidity in Honey (Acid-Base Titration)
  • Titratable Acidity: Meats and Derivatives (Acid-Base Titration)
  • Titratable Acidity in Other Matrices (Acid-Base Titration)
  • Total Acidity (Acid-Base Titration)
  • Volatile Acidity (Distillation; Acid-Base Titration)
  • Antioxidant Activity TEAC (Spectrophotometry)
  • Antioxidant Activity FRAP (Spectrophotometry)
  • Antioxidant Activity DPPH (Spectrophotometry)
  • Diastase Activity in Honey (Spectrophotometry)
  • Chromatographic Analysis of Organic Acids (HPLC Chromatography)
  • Chromatographic Analysis of Sugars (HPLC Chromatography)
  • Texture Profile Analysis (Instrumental Measurement with Texture Analyzer)
  • Texture Profile Analysis (According to Sample Type)
  • Proximate Analysis with Sugars
  • Proximate Analysis with Sugars and Dietary Fiber
  • Proximate Analysis with Dietary Fiber
  • Proximate Analysis without Fiber
  • Proximate Analysis with Sugars for Confectionery Samples (Including Cocoa)
  • Proximate Analysis with Sugars for Flour Samples
  • Proximate Analysis with Sugars and Dietary Fiber for Confectionery Samples
  • Proximate Analysis with Sugars and Dietary Fiber for Flour Samples
  • Monomeric Anthocyanins in Ethanolic Extracts (Differential pH)
  • Reducing Sugars (Oxidation-Reduction Titration)
  • Total Sugars (Oxidation-Reduction Titration)
  • Reducing and Non-Reducing Sugars for Flour Samples (AOAC 939.03)
  • Total Sugars for Confectionery Samples (JCAM 108-R2 Method)
  • Nutritional Table Calculation (Mathematical Calculation)
  • Total Carotenoids: Excluding Drying Procedure (Spectrophotometry)
  • Ash Content (Muffle Furnace Incineration)
  • Color: Tristimulus Colorimetry (CIELAB or RGB Space)
  • Honey Color: Spectrophotometry (Pfund Scale)
  • Electrical Conductivity in Honey (Conductimetry)
  • Total Phenol Content: Fruits and Derivatives (Folin-Ciocalteu Spectrophotometry)
  • Total Phenol Content: Apicultural Products (Folin-Ciocalteu Spectrophotometry)
  • Mineral Content: Na, K, Ca, Mg, Fe, Cu, or Zn (Each) (Atomic Absorption Spectrophotometry)
  • Total Volatile Nitrogen Content (Distillation; Acid-Base Titration)
  • Density in Liquids (Pycnometry)
  • Crude Fiber (Acid and Alkaline Hydrolysis, Drying, and Calcination)
  • Dietary Fiber: Total (Enzymatic-Gravimetric Method)
  • Phosphorus (Spectrophotometry)
  • Alcoholic Strength (Distillation; Densimetry)
  • Brix Degrees (Refractometry)
  • Total Fat (Solvent Extraction)
  • Total Fat (Mojonnier Method)
  • Total Fat with Hydrolysis (Acid Hydrolysis; Solvent Extraction)
  • Hydroxymethylfurfural: HMF (Spectrophotometry)
  • Moisture (Oven Drying)
  • Moisture in Honey (Refractometry)
  • Acid Index: Fats and Oils (Acid-Base Titration)
  • p-Anisidine Index (Spectrophotometry)
  • Peroxide Index: Fats and Oils (Oxidation-Reduction Titration)
  • Refractive Index: Fats and Oils (Refractometry)
  • Aromatic Profile by Electronic Nose (10 MOS-Type Sensors)
  • pH (Potentiometry)
  • Protein (Kjeldahl)
  • Oxidative Rancidity: Meats and Derivatives (2-Thiobarbituric Acid Method)
  • Apparent Sucrose in Honey (Oxidation-Reduction Titration)
  • Insoluble Solids in Honey (Gravimetry)
  • Soluble Solids (Refractometry)
  • Total Solids in Milk (Oven Drying)