Hasil (
Bahasa Indonesia) 1:
[Salinan]Disalin!
All oil and fat removing process have the objective of1. Producing un damaged products2. Obtaining as much yield as economically feasible3. Producing a low fat residue of the greatest possible valuePRE TREATMENT OR PREPARATION : All treatment of the raw material previous to extraction, such as cleaning, dehulling, crushing, cooking, detoxification, etcEXTRACTION OF OILS : The Separation of material into oil and residue, called cakePOST EXTRACTION TREATMENTS : Comprising the purification of the oil and treatment of the cake according to requirements of the marketREFINED OILS AND FATSCLEANINGThe removal of foreign materials from oil seedsContoh: stems, stones --------- abrasive and contain no oil weed seed------------ contain different kinds of oil dirt, leavesCleaning is important not only to ensure the good quality of the final products oil and meal but also to avoid premature wear of the preparation equipmentCleaning machines : sreens, vibrating screens, magnets, aspirators, shape sortersDEHULLINGDehulling is a process of removing hulls from the oil seeds for obtaining high quality edible oilThe reduces fibrous content of the meal and increases the marketability as stock feedAbout 99% of oil is stored naturally in kernels and the hulls are not removed they reduce the total yield of oil by absorbing or retaining oil in the press cakeThe wax and coloring matters present in the hulls get mixed with the expressed edible oil, therefore increase the production cost of edible oilWithout dehulling reduce the capacity of the extraction equipmentCRUSHING AND FLAKINGThe extraction of oil from oil seeds, either by mechanical extraction or solvent extraction, is facilitated by reduction of the seed to small particlesFLAKINGFlaking serves to rupture the cell structure and make the oil more readily available to the pressOil seed meats are usually flattened into thin flakes:1. To help to more readily expose the oil to solvent2. It also reduces power consumption of screw press3. It also ensure a more uniform cook (if the oil seed requires cooking), because all oilseed particles are uniformily thick
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