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magss

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    May 2023
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  1. My EE research question is "How does varying concentrations of CaCO3 affect the catechin levels of green tea", but I'm running into problems into how exactly to measure it. The basis for my question is to test how does varying mineral content of water affect the taste of tea, and in my research I found that CaCO3 was one of the minerals in water, and catechin is the main component of green tea which affects the bitterness and astringency (effectively taste). I wanted to use spectroscopy but the maximum absorbance for catechin is around 270nm, which is far lower than the machine I have ava
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