Method for sweep-frequency ultrasonic wave enhanced subcritical water extraction of nutritional components from Sagittaria sagittifolia Linm

A technology of subcritical water and swept-frequency ultrasound, applied in separation methods, chemical instruments and methods, solvent extraction, etc., can solve the problems of low extraction rate of nutritious components of Cigu and achieve the effect of high content

Pending Publication Date: 2018-08-21
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method of frequency-sweeping ultrasonic-enhanced subcritical water extraction of sagittarius nutrient components, making fu

Method used

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  • Method for sweep-frequency ultrasonic wave enhanced subcritical water extraction of nutritional components from Sagittaria sagittifolia Linm

Examples

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Effect test

Embodiment 1

[0022] After washing, removing impurities, and slicing the fresh Arrowhead, immediately add 1% citric acid water with a mass-volume ratio of 1:10, beating for 5 minutes, and then pour the beating liquid into the ultrasonic pool, and pulse the vibrating plate transducers on the lower and upper sides of the ultrasonic pool. The input power of the instrument is 600W, the lower (bottom) frequency combination is 68kHz-68kHz, and the upper is 22Hz-22kHz. When the ultrasonic is working, the distance between the upper and lower plates is fixed at 15cm. . After 20 minutes of ultrasonic treatment to the beating liquid, filter to obtain filtrate I and residue; continue to add the residue to the mass concentration of 1% citric acid water with a mass volume ratio of 1:10 (g:mL), and pump it into subcritical water In the extraction kettle, turn on the magnetically coupled stirrer, control the rotation speed to 300 rpm, extract the pressure to 12 MPa and extract the temperature to 100°C. Aft...

Embodiment 2

[0025] After washing, removing impurities, and slicing the fresh Sagittarius, immediately add 1% citric acid water with a mass-volume ratio of 1:10, beating for 10 minutes, and then inject the beating liquid into the ultrasonic pool, pulse the vibrating plate transducers on the lower and upper sides of the ultrasonic pool The input power of the instrument is 600W, the lower (bottom) frequency combination is 68kHz-40kHz, and the upper is 33Hz-22kHz. When the ultrasound is working, the distance between the upper and lower plates is fixed at 5cm, the frequency sweep period is 1s, and the ratio of pulse ultrasonic time to rest time is 10s / 5s . After the beating liquid was ultrasonically treated for 15 minutes, it was filtered to obtain the filtrate I and the residue; the residue was continuously added to the mass concentration of 1% citric acid water with a mass volume ratio of 1:10 (g:mL), and it was pumped into the subcritical water In the extraction kettle, turn on the magnetic...

Embodiment 3

[0028] After washing, removing impurities, and slicing the fresh Sagittarius, immediately add 1% citric acid water with a mass-volume ratio of 1:10, beating for 10 minutes, and then inject the beating liquid into the ultrasonic pool, pulse the vibrating plate transducers on the lower and upper sides of the ultrasonic pool The input power of the instrument is 600W, the lower (bottom) frequency combination is 40kHz-33kHz, and the upper is 28Hz-22kHz. When the ultrasonic is working, the distance between the upper and lower plates is fixed at 10cm, the frequency sweep period is 800s, and the ratio of pulse ultrasonic time to rest time is 80s / 5s . After the beating liquid is ultrasonically treated for 10 min, filter to obtain the filtrate I and the residue; continue to add the residue to the mass concentration of 1% citric acid water with a mass volume ratio of 1:10 (g:mL), and pump it into the subcritical water In the extraction kettle, turn on the magnetically coupled stirrer, co...

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Abstract

The invention discloses a method for sweep-frequency ultrasonic wave enhanced subcritical water extraction of nutritional components from Sagittaria sagittifolia Linm, and relates to the technical field of processing of agricultural products. The method is performed according to the following steps: slicing fresh Sagittaria sagittifolia Linm, immediately adding the sliced Sagittaria sagittifolia Linm into a citric acid aqueous solution, carrying out pulping, then injecting an obtained pulp into an ultrasonic pool of an ultrasonic wave treatment system, subjecting the pulp to sweep-frequency ultrasonic treatment, and after completion of sweep-frequency ultrasonic treatment, filtering an obtained pulp so as to obtain a filtrate I and residues; andn continuing adding the citric acid aqueous solution into the residues, pumping an obtained mixture into a subcritical water extraction kettle, controlling the pressure and temperature of extraction, after a period of time of extraction, releasing an extract, carrying out filtering so as to obtain a filtrate II, and combining the filtrate I with the filtrate II so as to be able to obtain a Sagittaria sagittifolia Linm solution rich in nutritional components. The Sagittaria sagittifolia Linm solution prepared by using the method provided by the invention is used as a raw material or an auxiliary material for a variety of nutritious products or medicinal products, and also can be used for preparing active components like polysaccharides, proteins, polypeptides and polyphenols of Sagittaria sagittifolia Linm through separation/enrichment. The method provided by the invention has simple process and realizes comprehensive nutritional components.

Description

technical field [0001] The invention relates to the technical field of agricultural product processing, in particular to a method for extracting nutrient components of sagittarius with frequency-sweeping ultrasound enhanced subcritical water. Background technique [0002] Sagittaria sagittifolia Linm (Sagittaria sagittifolia Linm), also known as Cigu and Cigu, is a perennial shallow-water herb of the Alismataceae Sagittifolia genus. my country is the origin of Cigu, mainly in southern water towns, and most of them are cultivated, especially in Baoying County, Yangzhou City, Jiangsu Province, which has a large planting area and good quality. Logo product. The edible bulbs of Sagittarius are rich in starch, protein and multivitamins, dietary fiber, alkaloids, polyphenols, iron, calcium, zinc, phosphorus, boron and other trace elements needed by the human body, and its average nutritional value is higher than that of The average nutritional value of aquatic vegetables such as ...

Claims

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Application Information

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IPC IPC(8): B01D11/02B01J19/10
CPCB01D11/0257B01D11/0265B01D11/0284
Inventor 段玉清张海晖张继贤罗孝平任晓锋马海乐张迪
Owner JIANGSU UNIV
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