Method for jointly extracting flavone and pectin from passion fruit peel

Abstract

The invention discloses a method for jointly extracting flavone and pectin from passion fruit peel. The method comprises the following steps: cleaning, drying and crushing to obtain passion fruit peel powder; adding passion fruit peel powder into an extraction tank, adding ethanol, solubilizer triethanolamine and dimethyl carbonate, adjusting the pH value to 8.0-8.5 by using alkali, carrying out ultrasonic extraction, filtering, and separating filtrate A and filter residue A; passing the filtrate A through a column, and performing reduced pressure distillation to obtain passion fruit peel total flavonoids; taking the filter residue A, inactivating enzyme, adding water, Tween-80 and cellulase, soaking, carrying out ultrasonic extraction for 5-15 minutes, filtering, and separating filtrate B and filter residue B; and concentrating the filtrate B under reduced pressure, decolorizing, carrying out alcohol precipitation, filtering, taking a precipitate, and drying the precipitate to obtain the pectin. According to the method of the invention, the flavone and the pectin can be jointly extracted from the passion fruit peel, and comprehensive utilization of the passion fruit peel is realized.

Description

technical field [0001] The invention relates to the technical field of extraction technology, in particular to a method for jointly extracting flavonoids and pectin from passion fruit peel. Background technique [0002] Passion fruit is native to South America and is a perennial vine of the genus Passiflora in the Passiflora family. It is known for its rich aroma of bananas, pineapples, lemons, strawberries, peaches, pomegranates and other fruits from its juice. Known as "Passion Fruit", it is also a transliteration of its English name "Passionfruit". It is also known as "King of Juice" and "Money Tree" abroad. [0003] Passion fruit juice has excellent color, fragrance, taste and nutrition. It is rich in more than 160 beneficial ingredients such as 17 kinds of amino acids necessary for the human body, multivitamins, and trace elements. , skin care and beauty and other magical effects. [0004] Passion fruit in my country is mainly cultivated in Guangxi, Guangdong, Hainan ...

AI Technical Summary

Problems solved by technology

[0004] Passion fruit in my country is mainly cultivated in Guangxi, Guangdong, Hainan and other southern provinces of China and Taiwan. Among them, Guangxi is the largest passion fruit producing area in my country. Passion fruit is generally used for the production of fruit juice, jelly, fruit dew, and jam. And other products, and its peel is often discarded as waste, which causes a waste of resources and may also cause related problems such as environmental pollution