Enzymatic browning causes the browning in fruits, (turning pigments brown). As when you cut an apple, or drop and apple; damaging cells. Polyphenol oxidase(tyrosinase) is released by the damaged...
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SALT AND FRUIT basically they homies from africa, they work as one. ALL.HAIL.SALTY.FRUIT.
Lemon juice
for apples ll you do is put the apple in milk or put lemon on it
Alton Brown's Fruit Salad
How to Make Sangria
How to Make Watermelon Sorbet
Orchard Diseases - Brown Rot