Innovation of anthocyanin extraction technology

Anthocyanins, also known as anthocyanins, are water-soluble natural pigments that are ubiquitous in nature

In the process of processing and storage, anthocyanins have high requirements on external environmental conditions, and temperature, pH value, light, moisture and even oxygen will affect their stability

In the microcapsules of anthocyanins, the inner wall of the microcapsules can play a certain protective role and effectively improve the chemical stability of anthocyanins in different external environments

Technological innovation based on the biological properties of anthocyanins can largely solve the application problems in food production

The ultrasonic extraction method uses ultrasonic waves to accelerate the dissolution of active ingredients, thereby improving the extraction efficiency of anthocyanins

Microwave extraction The extraction rate of anthocyanins from purple corncob and purple skin grapes can be improved by microwave-assisted extraction technology

Organic solvent extraction technology Organic solvent extraction technology has been applied to the extraction of most anthocyanin-rich substances such as grape seeds, blueberries and pomegranate peels

Supercritical fluid extraction technology Supercritical fluid extraction is an extraction method that utilizes the influence of temperature and pressure on the dissolving ability of supercritical fluid.

Among the above extraction techniques, solvent extraction is easy to operate, but in practice, there are problems such as long extraction time, large solvent consumption and certain pollution to the external environment.

Anthocyanins can not only be used in the field of common food materials, but also related health care products developed using anthocyanins have gradually increased.

(Yuan Yaming)

"China Food News" (December 06, 2021 Edition 06)

(Editor-in-charge: Yang Xiaojing)