A Process to Extract Pectin and Pigment from Sunflower Heads

question 8

Multiple Choice

A process to extract pectin and pigment from sunflower heads involves washing the sunflower heads in heated water. The three dimensional graph and associated contour graph below show the percentage of pigment that can be removed from the sunflower head by washing it for t minutes in r milliliters of water per gram of sunflower heads when the water temperature is Estimate the percentage of pigment removed from 20 grams of sunflower heads if the sunflower heads are washed for 5 minutes in 30 milliliters of water at

• A) 740%
• B) 780%
• C) 37%
• D) 36%
• E) 39%

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