According to the web search results, there are several factors that will affect the oil yield in rice bran oil production process, such as:
- The type and quality of rice bran. Different varieties of rice bran may have different oil content, antioxidant properties, and free fatty acid levels. The quality of rice bran may also depend on the storage conditions, milling methods, and freshness.
- The type and ratio of solvent. Solvents with low polarity, such as ethanol and hexane, can extract more oil from rice bran than solvents with high polarity, such as methanol. The ratio of solvent to rice bran also influences the extraction efficiency.
- The extraction time and temperature. Longer extraction time and higher extraction temperature can increase the oil yield, but they may also degrade the quality of the oil by increasing the free fatty acid content and reducing the antioxidant activity.
- The extraction method and equipment. Different extraction methods, such as solvent extraction, ultrasonic-assisted extraction, and supercritical carbon dioxide extraction, have different advantages and disadvantages in terms of oil yield, energy consumption, environmental impact, and equipment cost.
These are some of the main factors that will affect the oil yield in rice bran oil production process.
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