By studying the size of the anode copper and zinc anode. The number of electric cells. The quantity of electrolyte aqueous solution and duration in fermentation shell. Beef and pineapple core 7 days 14 days 21 days and 35. Day
The sample size of copper and zinc. Number of cells Electrolyte volume of solution. And duration of the fermentation, peel and core the pineapple flesh, 7, 14, 21 and 35 days.
By studying the size of electrode copper and zinc electrode of electric cells. The quantity of aqueous electrolyte. And fermentation time shell meat and pineapple core 7 days 14 days 21 days and 35 days.