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Table 2 Overview of gastrointestinal parameters

From: Non-targeted and targeted analysis of collagen hydrolysates during the course of digestion and absorption

  Intake (total)150 g (water, artificial saliva, product and gastric start residue containing enzymes)
  Intake (product)8 g
  Gastric half emptying time (t½)50 min
  Gastric pH6.7 to 2.0 in 90 min
  EnzymesAmylase, lipase, pepsin
Small intestine
  Residence time~ 360 min
  Small intestinal pH6.5
  SecretionsBile and pancreatic juice (containing trypsin, amylase, lipase, protease)
Temperature37 °C ± 1 °C