Debitterized natural rose residue extract and preparing method and application thereof

A technology of rose dregs and rose flowers, which is applied in the direction of food ingredients containing natural extracts, application, food ingredients as antioxidants, etc., can solve the problems of difficult removal of bitter and astringent substances, long cycle, time-consuming and labor-intensive, etc., to achieve rich products Effects of improving flavor, increasing added value, and reducing production cost

Inactive Publication Date: 2016-06-29
QINGDAO FENFANG XIAOZHEN DAILY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is not easy to remove the bitter and astringent substances in roses. Most of the rose food processing enterprises adopt the method of adding sugar and fermentation to remove them. The fermentation conditions need to be strictly controlled, and the cycle is long, time-consuming and laborious.

Method used

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  • Debitterized natural rose residue extract and preparing method and application thereof
  • Debitterized natural rose residue extract and preparing method and application thereof
  • Debitterized natural rose residue extract and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Fresh half-open Pingyin roses are selected for picking, and the picked flowers are frozen and pretreated at -10°C for 10 hours. Rinse the above-mentioned pretreated flowers in clean water to remove floating dust and insects on the surface of the flowers, remove and drain the water for later use.

[0040] (2) Put the above-mentioned pretreated flowers in a distiller and mix them with water at a mass ratio of 1:5, distill for 4 hours to extract the essential oil, after the distillation is completed, wait for the distiller to cool down naturally, filter and separate the flower residue and flower water in the bottle .

[0041] (3) Mix the filtered flower dregs with water at a mass ratio of 1:4, ultrasonically extract at 40°C for 30 minutes, extract the active ingredients in the flower dregs, filter and separate the flower dregs and flower water, repeat the extraction twice, and combine the filtrates , and then concentrated by rotary evaporation to obtain the flower res...

Embodiment 2

[0051] (1) Fresh half-bloomed Gansu Kushui roses were selected for picking, and the picked flowers were frozen and pretreated at -18°C for 4 hours. Rinse the above-mentioned pretreated flowers in clean water to remove floating dust and insects on the surface of the flowers, remove and drain the water for later use.

[0052] (2) Put the above-mentioned pretreated flowers in a distiller and mix them with water at a mass ratio of 1:4, distill for 3 hours to extract the essential oil, after the distillation is completed, wait for the distiller to cool down naturally, filter and separate the flower residue and flower water in the bottle .

[0053] (3) Mix the filtered flower dregs with water at a mass ratio of 1:6, ultrasonically extract at 50°C for 40 minutes, extract the active ingredients in the flower dregs, filter and separate the flower dregs and flower water, repeat the extraction twice, and combine the filtrates , and then concentrated by rotary evaporation to obtain a flo...

Embodiment 3

[0063] (1) Fresh half-open Pingyin roses are selected for picking, and the picked flowers are frozen and pretreated at -5°C for 15 hours. Rinse the above-mentioned pretreated flowers in clean water to remove floating dust and insects on the surface of the flowers, remove and drain the water for later use.

[0064] (2) Put the above-mentioned pretreated flowers in a distiller and mix them with water at a mass ratio of 1:6, distill for 4 hours to extract essential oils, and after the distillation is completed, wait for the distiller to cool naturally and filter to separate the flower residue and flower water in the bottle.

[0065] (3) Mix the filtered flower dregs with water at a mass ratio of 1:5, ultrasonically extract at 45°C for 25 minutes, extract the active ingredients in the flower dregs, filter and separate the flower dregs and flower water, repeat the extraction twice, and combine the filtrates , and then concentrated by rotary evaporation to obtain a flower residue ex...

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Abstract

The invention provides a debitterized natural rose residue extract and a preparing method and application thereof. Rose residues obtained after distillation are used as the raw material and subjected to ultrasonic extraction, filtration and concentration to obtain rose residue extraction concentrated solution, bitter substances including tannin in the concentrated solution are made to settle by means of gelatin at a low temperature, residual gelatin is removed with ethyl alcohol, the rose extract is prepared through concentration, and rose pigment and flavor substances are added to improve color and fragrance. The prepared rose residue extract has a strong and complete rose fragrance and a rosy color, and rose residues obtained after distillation can be fully recycled so that resource waste and environment pollution can be reduced and the additive value of rose can be increased. Meanwhile, tannin is removed through gelatin, and the traditional tannin removing technological process achieved through fermentation can be shortened; furthermore, unique low-temperature storage treatment is conducted, so that complete settling of tannin is achieved; residual gelatin is removed through alcohol precipitation, so that flavor components including pigment can be added conveniently in the following stages, and quality is made higher.

Description

technical field [0001] The invention belongs to a food industry method, and relates to a preparation method of debittering natural rose extract by using roses and rose dregs, and in particular to a debittering natural rose dregs extract, a preparation method and application thereof. Background technique [0002] Rose is mild in nature, soothes the liver and refreshes the spleen, nourishes the skin and detoxifies, regulates the mechanism, beautifies the skin, ventilates and activates blood circulation, resuscitates and removes blood stasis, etc. However, roses have strong seasonality and short duration, and the processing of roses is obviously affected by seasonality. [0003] Roses contain volatile oils, polyphenols, flavonoids, organic acids, waxes, β-carotene and other ingredients beneficial to the human body, which have the functions of reducing and eliminating free radicals, anti-oxidation, anti-thrombotic, anti-cancer, anti-inflammatory, Antibacterial, immune regulatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L21/15A23L5/20A23L5/43A23L33/105
CPCA23V2002/00A23V2200/02A23V2200/044A23V2200/10A23V2200/16A23V2200/30A23V2250/2104A23V2250/21A23V2300/14
Inventor 任航薛丽王静
Owner QINGDAO FENFANG XIAOZHEN DAILY CHEM CO LTD
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