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Peony polyphenol extraction process

A peony flower polyphenols and extraction process technology, applied in the field of peony flower polyphenols extraction process, can solve the problems of long extraction time, low extraction rate, and low yield, and achieve short extraction time, increase output value, and high efficiency Effect

Inactive Publication Date: 2014-05-14
QILU UNIV OF TECH
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Problems solved by technology

[0003] At present, the anthocyanin types, antioxidant activity and volatile oil components of peony flowers are mainly studied. In addition, only the polyphenols of peony flower extracts are extracted by ultrasonic method using methanol as a solvent. The methanol used in this method has certain toxicity. , and the yield is low (0.146%), while the conventional water bath extraction method has the disadvantages of long extraction time and low extraction rate (0.192%)

Method used

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  • Peony polyphenol extraction process

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Embodiment

[0016] The present invention uses pulsed ultrasonic technology to extract phenolic substances in peony petals. The process steps are: weigh 1.0g of peony petal powder and place it in a narrow-necked flask, and add different concentration of ethanol solution (volume fraction of ethanol is 10~70%), put the narrow-mouth beaker in the water bath, and then place the ultrasonic probe in the middle of the liquid. The extraction time is 10~40min, and the ultrasonic extraction is carried out at a temperature of 30 ℃, the power is 1000w.

[0017] The present invention selects solid-liquid ratio, extraction time, ethanol volume fraction as single factor, and they are to the extraction rate of polyphenol see figure 1 , figure 2 with image 3 .

[0018] As a preferred solution, the process parameters of the present invention are: the ratio of solid to liquid is 1:500, the volume fraction of ethanol is 50%, the extraction time is 20min, the extraction temperature is 30°C, and the power ...

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Abstract

The invention relates to the field of processing of subsidiary agricultural products, and particularly discloses a peony polyphenol extraction process. The peony polyphenol extraction process adopts peony petals as a raw material and is characterized in that the peony petals are put into a narrow-mouth flask, an ethanol solution of which the volume fraction is 10-70 percent is added according to a material / liquid ratio of (1:50)-(1:600), the narrow-mouth flask is put into a water bath kettle, and then an ultrasonic probe is arranged in the middle of the solution to carry out ultrasonic extraction. The peony polyphenol extraction process disclosed by the invention is short in extraction time and high in efficiency, and the peony petals which are generally agricultural wastes are taken as the raw material for extracting an active substance, thus the production value of the peony is increased, wastes are changed into valuable substances, and resource utilization of agricultural production wastes is realized.

Description

(1) Technical field [0001] The invention relates to the field of agricultural and sideline product processing, in particular to a process for extracting peony flower polyphenols. (2) Background technology [0002] Peony is a traditional medicinal material for clearing heat and detoxifying. It has a bitter taste and flat nature, and has the effects of harmonizing, promoting blood and cooling blood. Modern analysis shows that the polyphenols in peony flowers are the material base of its essence. At present, in addition to being an important ornamental flower, peony mainly uses its root bark (ie paeonol) as a traditional Chinese medicinal material. Due to the restriction of flowering period and climatic conditions, economic, trade and tourism activities are prosperous when the flowers bloom, and bleak when the flowers fall. Due to the unfavorable management situation and the backward processing technology, a large number of peonies are wasted every year and directly thrown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/71A61K133/00
Inventor 傅茂润
Owner QILU UNIV OF TECH
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