Co-production extraction process of pectin, anthocyanin and dietary fibers in passion fruit peel

Abstract

The invention discloses a co-production extraction process of pectin, anthocyanin and dietary fibers in passion fruit peel. The co-production extraction process comprises the following steps: firstly,obtaining the pectin from the passion fruit peel by adopting microwave assisted extraction; secondly, carrying out ultrasonic-assisted extraction on material residues subjected to microwave assistedextraction to obtain the anthocyanin; thirdly, carrying out microbial fermentation extraction on filter residues extracted by ultrasonic-assisted extraction to obtain the dietary fibers. The co-production extraction process disclosed by the invention firstly opens up a process route for continuously extracting three active components such as the pectin, the anthocyanin and the dietary fibers in the passion fruit peel; the total extraction rates of the pectin, the anthocyanin and the dietary fibers are respectively 11.72 to 12.45 percent, 1.03 to 1.25 percent and 14.97 to 15.81 percent. The co-production extraction process disclosed by the invention has the advantages that the maximum utilization of the passion fruit peel is achieved, new resource food for food industry can be developed andthe added value of passion fruits is improved, so that a guarantee is provided for healthy and sustainable development of passion fruit cultivation industry.

Description

technical field [0001] The invention belongs to the field of food, more specifically relates to the fields of agronomy, biotechnology, microbiology and the like, in particular to a process for extracting co-production of pectin, anthocyanin and dietary fiber in passion fruit peel. Background technique [0002] Passion fruit (Passiflora edulis Sims.), also known as passion fruit and egg fruit, is mainly produced in tropical and subtropical regions. It is a perennial evergreen herbaceous or semi-woody vine climbing plant. It has a long history of planting and has formed a certain commercial scale. It is rich in more than 160 beneficial ingredients such as pectin, polysaccharides, flavonoids, alkaloids, polyphenols, vitamin A / C, dietary fiber and minerals Ca / Mg / Fe / Zn / Se / K, etc. Thirst, skin care and beauty, phlegm and cough, anti-cancer and anti-aging, calming and anti-anxiety, anti-inflammatory and antibacterial and other medical and health effects, so it is also known as the...

AI Technical Summary

Problems solved by technology

Although there have been many reports on the relevant research on the extraction process of active ingredients in passion fruit peel in recent years, there are more or less deficiencies in many extraction methods, for example, using absolute ethanol and petroleum ether to extract water-soluble pigments, The process of oil-soluble pigments has a long process, many operation steps, and a long time. Some solvents cannot be recycled and recycled, and the energy consumption is large.

Although the industrial production of pectin extraction has a relatively large scale, it is mainly an acid solution precipitation method. Generally, strong acid, high temperature and long-term heating are used to inevitably denature and decompose the pectin in the raw material, and the extracted Pectin quantity and quality are also not ideal

However, extracting dietary fiber from passion fruit peel generally adopts heat extraction method and soaking extraction method, and the extraction rate is not ideal, and there are problems such as low productivity and low product purity.

In addition, at present, most of the researches on various active ingredients in passion fruit peel at home and abroad are single-extraction studies, the cost is high, and the products are often extracted without benefit, and there are few combined products of two or more extracts. However, there is no literature report on the continuous extraction of the three active ingredients of pectin, anthocyanins and dietary fiber in the passion fruit peel.

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