sissi
Former Member
After putting the yummy stuff into your mouth, it (the bolus) then has to travel through the entire gastrointestinal tract before coming out the other end. The gastrointestinal tract for the purposes of this exercise includes the oral cavity, the oesophagus, stomach, small intestine, and colon.
Food travels down the oesophagus at a rate of approximately 3 to 4 centimetres per second (1 to 2 inches), and the entire process takes about 5 to 6 seconds. In the stomach, food tends to hang around for a little longer and this depends on a variety of factors including the amount of food you have consumed, how much fat it contains, and also the acidity of the stomach. However, all food should have left the stomach within 2 to 4 hours.
In the small intestine, digestion continues and absorption occurs. From here on, the time to defecation will vary depending on the time it takes to adequately digest and absorb in the small intestine. This will usually take 5 to 6 hours. The "food then enters the colon for further digestion and water reabsorption before defecation. The time from its entering the colon to defecation is about 12 to 24 hours.
Thus, the time for food to travel from one end to the other probably ranges from about 20 to 30 hours. Although I havent had the time to look further into the rest of your question, I hazard a guess that it is unlikely that meat will hang around for a week given that the gastrointestinal tract is very effective in breaking it down with various enzymes and acidity of the stomach. Foods high in protein and fats probably would probably take a little longer to pass through than if it were carbohydrate.
Hope this helps!
David Ng, BPharm MClinPharm
PhD Candidate
School of Pharmacy and Medical Sciences
University of South Australia
North Terrace
ADELAIDE SA 5000
I can gain from this information that the transit time of the pineapple ,being where it was on autopsy , indicates it had been ingested between 7 and 10 hours before death. Once again I suggest the cracked crab was vomited around the time of death. IMO
The cracked crab could not be feces unless it was eaten approx. 20 hours before death. Her rate of rigor indicates she was murdered before 2 am. and possibly as early as 11 pm on the 25th. this doesn't allow enough time for dinner at 6 to be that far along in the digestive system. IMO
Food travels down the oesophagus at a rate of approximately 3 to 4 centimetres per second (1 to 2 inches), and the entire process takes about 5 to 6 seconds. In the stomach, food tends to hang around for a little longer and this depends on a variety of factors including the amount of food you have consumed, how much fat it contains, and also the acidity of the stomach. However, all food should have left the stomach within 2 to 4 hours.
In the small intestine, digestion continues and absorption occurs. From here on, the time to defecation will vary depending on the time it takes to adequately digest and absorb in the small intestine. This will usually take 5 to 6 hours. The "food then enters the colon for further digestion and water reabsorption before defecation. The time from its entering the colon to defecation is about 12 to 24 hours.
Thus, the time for food to travel from one end to the other probably ranges from about 20 to 30 hours. Although I havent had the time to look further into the rest of your question, I hazard a guess that it is unlikely that meat will hang around for a week given that the gastrointestinal tract is very effective in breaking it down with various enzymes and acidity of the stomach. Foods high in protein and fats probably would probably take a little longer to pass through than if it were carbohydrate.
Hope this helps!
David Ng, BPharm MClinPharm
PhD Candidate
School of Pharmacy and Medical Sciences
University of South Australia
North Terrace
ADELAIDE SA 5000
I can gain from this information that the transit time of the pineapple ,being where it was on autopsy , indicates it had been ingested between 7 and 10 hours before death. Once again I suggest the cracked crab was vomited around the time of death. IMO
The cracked crab could not be feces unless it was eaten approx. 20 hours before death. Her rate of rigor indicates she was murdered before 2 am. and possibly as early as 11 pm on the 25th. this doesn't allow enough time for dinner at 6 to be that far along in the digestive system. IMO