Separation processes

Pressing and solvent extraction

Oilseeds contain oil, protein and starch in plant cells. Destructuring processes include cracking with corrugated rolls, dehulling, decorticating and flaking (Galloway, 1976). Seeds vary in oil content and the equipment required differs. Soybeans are solvent extracted whereas cotton seed, rape-seed, peanut, sunflower, palm and copra are examples where pressing followed by solvent extraction are undertaken (see Fig. 8.7). The main requirement is to avoid excessive damage, although cell and membrane breakage is required to open up the structure to release oil quickly. However, combination processes are actually used in secondary extraction after the majority of the oil has been removed. In addition to application of forces, elevated temperatures are used to denature proteins, decrease the oil

Heat, water

Whole beans— Cleaning — Cracking — Dehulling —Conditioning— Flaking

Healthy Chemistry For Optimal Health

Healthy Chemistry For Optimal Health

Thousands Have Used Chemicals To Improve Their Medical Condition. This Book Is one Of The Most Valuable Resources In The World When It Comes To Chemicals. Not All Chemicals Are Harmful For Your Body – Find Out Those That Helps To Maintain Your Health.

Get My Free Ebook


Post a comment