Complex sentence: Human pancreatic lipase (HPL), is the main enzyme responsible for breaking down fats in the human digestive system, a lipase acts convert triglyceride substrates found in oils from food to monoglycerides and free fatty acids.
Split into simpler sentences: Human pancreatic lipase (HPL) is the main enzyme responsible for breaking down fats in the human digestive system. It is a lipase which converts triglyceride substrates found in oils from food to monoglycerides and free fatty acids.