Peeling is the process of trimming the material needs to be removed the outer layer or skin. According to the dictionary of food science of technology IFIS peeling is the process of releasing the outer portion that surrounds the fruit and vegetables using a knife in particular peelers, also generally release the skin or shell of the egg that has been boiled. Examples are pengeprisan carrots, parsnip, potato and others.
Figure 26. Stripping bulb using a carrot peeler
With advances in technology continue to evolve, the process of peeling or peeling not only be used with a knife, but could use other ways such as by:
boiling water vapor
alkaline solution (NaOH, KOH)
receipts infrared heat
use fire
mechanical means (corborundum rotating drums)
use high-pressure steam
how freezing
using acid
For fishery products pertenakan and skin separating process called skinning. According to the dictionary of food science of technology IFIS, skinning is the process of releasing the skin of foodstuffs such as chicken and fish before or after cooking. In the commodity shrimp, common shrimp that have been peeled and removed his fist termed peeled.
Peeled shrimp products are classified into 3 groups, namely:
a) Peeled undevined (PUD), the skin peeled, cut meat and tail intact without dumped
b) Peeled and devined (PND), the skin peeled, back split longitudinally, using a sharp knife and intestines removed and discarded tail
c) Peeled tile on (PTO) is almost the same with the peeled and devined, but the tail was not dumped
Seeding or separation of seeds
Seeding is the activity of trimming the material to separate the seeds of agricultural produce, especially fruits. Examples are pengeprisan on guava, tomato, watermelon and others. Part seeds are separated from disuse or to facilitate the process of handling or subsequent processing, for example in fruit juice processing.
Coring or separate core parts
Coring is trimming activities on materials to separate the core material from the material. Examples are pengeprisan pineapple that is taking part pineapple core and separate.