_____ content is reduced if fruit is exposed to air by bruising or cutting, or to alkali or copper through cooking or processing.
a. Glucose and fructose
b. Diphenylisatin
c. Soluble fiber
d. Vitamin C
e. Iron and potassium
Question 2
Enzymatic browning in fruit is catalyzed by
a. melanins.
b. polyphenol oxidase.
c. cellulase and hemicellulase.
d. all of the above answers are correct
e. none of the above answers is correct