The invention discloses a preparation method of a blueberry
pomace extract product having hypotensive effect and an electuary. The preparation method comprises the following steps: mixing blueberry
pomace and acid
alcohol, employing ultrasonic-assisted extraction, and
drying an extract product to obtain the powdery blueberry
pomace extract product containing
anthocyanin. The electuary comprises the blueberry pomace extract product, a sour additive and
calorie-
free sugar, or comprises blueberry pomace extract product and
fruit juice powder, the sour additive is a mixture of
citric acid and
sodium citrate, and
calorie-
free sugar is
stevioside or
xylitol. According to the invention, the by-product blueberry pomace extract product produced by a blueberry
fruit juice production is used for obtaining the blueberry pomace extract product containing
anthocyanin through a reasonable technology, the blueberry pomace extract product has hypertension effect, provides a new approach for using the blueberry pomace, fully uses the blueberry resource, and blueberry
processing economic benefit is increased. Simultaneously, the
pollution problem due to by-product
discharge can be solved, and the method is simple, and the practicality is strong.