crude degummed sunflower oil refinery plant in rwanda
- Usage: edible oil
- Type: whole oil refinery machine price
- Automatic Grade: Automatic
- Production Capacity: 100%
- Model Number: 1st series Doing oil refinery machine price
- Voltage: 380V
- Certification: CE and ISO
- Raw material: sunflower with shell or not
- Product: to make crude oil or refined oil
- Solvent name: n-hexane
- Capacity: from 5T to 2000T oil refinery machine price
- Oil content in sunflower: about 40%
- Oil residues: less than 1%
- Function: getting sunflower oil
- Manufacturing experience: 19 years experience in edible oil field
- Warranty: 12 months
- Material of equipment: stainless steel and carbon steel
Effect of refining on quality and composition of sunflower oil
Process flow diagramme for refining of sunflower oil. Degumming. The crude oil in the open conical tank was heated to 45 °C and degummed by adding 0.2 % phosphoric acid (50 % w/w strength) with slow agitation for 30 min. Then the oil was settled for 30 min and the water with dissolved gum was drained out.
Mechanically pressed crude sunflower oil was obtained from a local oil mill. The crude oil was kept in tin container away from the light, high temperature and oxygen to avoid auto oxidation. The oil was refined in the developed experimental unit as per the process flow diagramme shown in Fig. 1. Degumming The crude oil in the open conical tank was
Effect of degumming process on physicochemical properties
The effect of different degumming processes on physicochemical properties of crude sunflower oil was studied by means phosphorous content, acid value, peroxide value, phospholipids, iron, moisture, unsaponifiable matter, viscosity, density and color value. Three different degumming processes were evaluated: phospholipase A1 degumming process
also from sunflower oil and rapeseed oil. When water is added to a crude oil, most of the phospha- tides in the oil are hydrated and made insoluble in the oil. This forms the principle for the water degumming process (Fig. 2). The crude oil may come directly from an extraction plant and has a temperature close to the degum-
Chemical Degumming - AOCS
Crude oil, either water degummed or not, is treated by an acid, usually phosphoric acid, citric acid or malic acid in the presence of water. For oils containing relatively low amounts of NHP (e.g. sunflower oil) this process can lead to degummed oil with a lower residual phosphorus content (5 to 30 ppm) than water degumming.
The most effective degumming process was TOP degumming, that allowed to decrease the amount of phosphorus in pressed rapeseed oil to 9.6 mg kg-1 and in pressed sunflower oil to 4.5 mg kg-1. In
Influence of Chemical and Physical Refining Processes on
For the physical refining process, crude sunflower oil was degummed using the TOP degumming method. In this process, the oil was treated with 0.3% w/w phosphoric acid (75% w/w), and the H3PO4 was neutralized with 0.15% w/w sodium hydroxide (40% w/w).
The data obtained for viscosity showed that crude sunflower oil exhibited the highest resistance to flow with a viscosity value of 48.63±2.65 mPa*s, while enzymatic degummed oil samples showed the least data with no significant differences between them. The water treatment exhibited a least reduction, but it was significant statistically.
- Can sunflower oil be refined?
- An experimental oil refining unit has been developed and tested for refining of sunflower oil. Crude pressed sunflower oil obtained from a local oil mill was refined using chemical method by degumming, neutralization, bleaching and dewaxing. The quality and composition of crude and refined oil were compared.
- Does water degumming reduce the iron content of crude sunflower oil?
- As well, the iron content of crude sunflower oil was reduced to 4.15 mg/kg after degumming using the PLA2 enzyme. The results obtained also indicated that water degumming process reduced the content of this metal. This may indicate that a significant iron concentration was complexed with phospholipids ( Brevedan et al., 2000 ).
- How is crude pressed sunflower oil refined?
- Crude pressed sunflower oil obtained from a local oil mill was refined using chemical method by degumming, neutralization, bleaching and dewaxing. The quality and composition of crude and refined oil were compared. The phosphorous content, FFA content, peroxide value and wax content decreased during the refining process.
- Does enzymatic degumming reduce phospholipids in crude sunflower oil?
- The phospholipids content of crude sunflower oil was strongly reduced by the enzymatic degumming process being 95.05% and 94.28% with PLA1 and PLA2 respectively. This should be due to the hydrolysed capacity of the enzymes. The water degumming process also achieved a significant reduction in the phospholipids content.
