Extraction method of shaddock peel pectin

An extraction method, pomelo peel pectin technology, applied in the field of food production extraction technology, can solve the problems of unsatisfactory extraction effect and high cost, and achieve the effects of good appearance and taste, retention of properties, and reduction of damage

Inactive Publication Date: 2019-07-19
FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE
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Problems solved by technology

The above-mentioned several methods that are widely used in industrial production include acid method, alkali method and enzymatic method, among which the acid extraction method is the most common. Other methods have not been widely used because of high cost or unsatisfactory extraction effect. In the stage of experimental exploration and research

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  • Extraction method of shaddock peel pectin
  • Extraction method of shaddock peel pectin
  • Extraction method of shaddock peel pectin

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Embodiment Construction

[0032] The technical scheme of the present invention will be further described below in conjunction with specific examples:

[0033] A method for extracting pomelo peel pectin, comprising the following steps:

[0034] (1) Pre-treatment of pomelo peel: Wash fresh pomelo peel, cut into small particles, put into boiling water and heat for more than 10 minutes, destroy the activity of pectinase in grapefruit peel (because pectinase has a certain decomposing effect on pectin, Therefore, it is necessary to inactivate the grapefruit peel), make it inactivated, and then rinse it with boiling water two to three times to remove the pigment, bitterness, sugar and some soluble non-colloid substances in the grapefruit peel until the water is colorless or light Place the rinsed pomelo peel in an oven at 60°C to dry, then pulverize it with a universal grinder, pass through a 100-mesh sieve, and put the sieved pomelo peel powder into a fresh-keeping bag for future use;

[0035] (2) Microwave...

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Abstract

The invention discloses an extraction method of shaddock peel pectin. The method comprises the steps of shaddock peel pretreatment, microwave-composite enzymolysis assisted extraction, extracting solution centrifugation, filtrate vacuum concentration, rapid cooling, pectin precipitation and the like. The method has the advantages that the pectin yield is more than 30%, the extraction rate is higher than that of the conventional shaddock peel pectin extraction method, the operation is simple and convenient, the physical and chemical properties of the pectin extracted by the method are better than those of the pectin extracted by the conventional acid extraction method, the extraction conditions are mild, the energy consumption is low, the pollution is low, the property of the shaddock peelpectin is greatly retained, and the damage is reduced. Meanwhile, the jelly and the fruit soft sweets prepared from the pectin extracted by the method have better appearance and taste than those of the pectin extracted by a traditional acid extraction method, and the method is more suitable for being applied to food industrial production, and is popularized and used for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of food production extraction technology, in particular to a method for extracting pomelo peel pectin. Background technique [0002] Natural pectin is a kind of hydrophilic plant glue, which often exists in the roots, stems, leaves and fruits of higher plants. It is a natural polysaccharide polymer compound extracted from the cell wall of plant tissues. Its chemical formula is C 5 h 10 o 5 , It is white to yellow-brown powder. In 1824, French pharmacist Bracennot extracted it from carrot for the first time and named it "pectin", with a relative molecular mass of 10,000-400,000. [0003] With the development and research of functional polysaccharides, pectin, as the soluble dietary fiber in the seventh largest nutrient for human beings, has been paid more and more attention. Relevant data show that the annual demand for pectin in the world is about 20,000 tons, of which China consumes more than 2,000 ton...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
CPCC08B37/0048
Inventor 谢勇陈倩倩林学英
Owner FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE
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