Dehydrated mango peel of 20 g was weighed in a 1000 mL
borosil glass beaker and pH of extractant was adjusted to 1.45 using
hydrochloric acid and water mixed in the ratio of 1:25 (1 part of
peel and 25 parts of extractant) allowed to soak for 20 min at
30 ± 2 C