At present, the extraction methods of blueberry fruit powder mainly include organic solvent extraction, ultrasonic-assisted extraction, microwave-assisted extraction and enzymatic method.
The Extraction Method of Blueberry Extract
Solvent Extraction
Solvent extraction is one of the most commonly used extraction methods for anthocyanins. Since anthocyanins are soluble in alcohol solutions such as ethanol and methanol, ethanol or methanol is usually used as an extractant, and anthocyanins are stable under acidic conditions. Blueberry anthocyanins are usually extracted under acidic conditions.
Methanol solution is a commonly used blueberry anthocyanin extraction solvent. A small amount of hydrochloric acid or acetic acid solution can be added to improve the extraction efficiency, and the optimal process conditions can be obtained by adjusting the material-liquid ratio, extraction temperature and extraction time. However, methanol solution has certain toxicity and is not friendly to the environment, so ethanol is often used as the extraction solvent.
Ultrasonic Extraction
Ultrasound ruptures the cell wall of the blueberry and the entire blueberry fruit in an instant. It shortens the fragmentation time, and at the same time, the vibrational effect of ultrasonic waves enhances the release, diffusion and dissolution of intracellular substances. Thereby significantly improving the extraction efficiency.
The ultrasonic extraction process of blueberry anthocyanin was optimized, and the optimal extraction conditions of blueberry anthocyanin were obtained as follows: ultrasonic power 730 W, solid-liquid ratio 1:18, extraction time 40 min, and extraction temperature 55 ℃. The extraction rate was 5.79%.
Enzymatic Method
Enzymes can decompose plant tissues, thereby accelerating the release of effective substances in plant cells, thereby improving the extraction rate. The anthocyanin in blueberry pomace was extracted by cellulase, and the extraction rate of anthocyanin in the obtained blueberry pomace was 4.12%.
Where To Buy Blueberry Extract?
Qyherb is committed to the production and sales of natural ingredients blueberries and their extracts. Our products are raw materials and additives for food, supplements and health products. This product is not suitable for direct consumption. We provide extracted blueberry fruit powder in different specifications. If you have any needs, please contact us.
Summary
The content of anthocyanins in blueberries is high, and the function is good, which is a good source of anthocyanins. It has been widely used in food, medical, cosmetics and other fields. However, the stability of blueberry anthocyanins is poor, and there is a lot of loss in the production process. Therefore, how to maximize the retention of anthocyanin and its physiological activity is our goal to extract effective components.