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EXPERIMENT TO INVESTIGATE THE EFFECT OF THE SIZE OF APPLE PIECES USED ON THE YIELD OF JUICE PRODUCED BY APPLES USING THE ENZYME PECTINASE. AIM The aim of this experiment is to investigate how the enzyme pectinase effects the yield of juice produced by apples and also how the size the apple pieces effects the efficiency of the enzyme pectinase. PRELIMINARY WORK To help me with my investigation, I did a preliminary experiment investigating a key element of my actual investigation - whether the enzyme pectinase actually had an effect on the yield of juice produced by apples. I also needed to work out a suitable time to leave the apple pieces filtering and I also considered the fact that a preliminary experiment would be useful in helping me acknowledge and prevent any errors that may occur in my real investigation. METHOD 1. A medium-sized apple was chopped into small pieces and...

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