|MadSci Network: Other|
Hi Ashley, You have made an interesting observation with your experiment with lemons and limes. There are a number of possible reasons for your observations. First, do you know if the age of the lemons and limes (time from when they were harvested) was the same. One of the fruits may have been much older than the other. The methods of harvesting can also influence the number of microorganisms on the surface of the fruit. The more spoilage organisms (bacteria, yeasts & molds) on the surface the faster the rate of spoilage once they are introduced into the pulp. The method you used to cut a piece out of the fruit can also influence the number of microorganisms that enter the pulp. Did you wash the fruit before making the cut? Did you use a washed and sanitized knife to make the cuts? Did you make the cut in the lemon first and than used the same knife (without washing and sanitizing) to cut the lime? All of these things can influence the rate at which a food product will spoil. I hope this information may provide several resons for the observations you made with your lemon and lime experiment. Sincerely, Al Bushway Professor of Food Science
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