Protocols

  • Proximate composition analysis of natural products and foods

Moisture, ash, fat content, protein content, carbohydrate content, titratable acidity

  • Food quality attributes

Color, texture (penetrometer tests, texture profile analysis, viscosity)

HPLC analysis of sugars and organic acids

  • Bioactive composition of natural products and foods with the employment of spectrometric assays

Total phenolics, total flavonoids, total hydroxycinnamates, total flavonols, total anthocyanins, total tannins, total carotenoids

  • Bioactive composition of natural products and foods with the employment of chromatographic techniques

Phenolic acids, flavonoids, anthocyanins, triterpenes, tocopherols

  • Evaluation of bioactivity of natural products and foods using hyphenated chromatographic techniques and TLC chromatography

HPLC-Bioassays

TLC-autobiography

  • In vitro antioxidant activity assays

DPPH, FRAP, ABTS, phosphopolybdenum, β-carotene linoleic model system, lipid oxidation inhibition (vegetable oils, oil in water emulsions, cooked comminuted pork model system), lecithin liposome system

  • Bioactivity linked to hyperglycemia

alpha-amylase & alpha glycosidase assays, antiglycation activity (BSA-glucose) assay

  • Bioactivity linked to antioxidant activity

15-Lipoxygenase activity & xanthine oxidase assays

  • Bioactivity linked to cardiovascular diseases

Angiotensin-I-converting enzyme assay

  • Extraction, fractionation and purification techniques

Solid- liquid extraction, soxhlet extraction, ultrasound assisted extraction, dispersive liquid-liquid microextraction, solid phase extraction (SPE)

  • In vitro triple-step digestion