Process for ultrasonic extraction of anthocyanin of purple corn leaves

A technology of leaf anthocyanin and purple corn, applied in the direction of organic chemistry, etc., can solve the problems of high extraction cost and time-consuming extraction, and achieve the effect of meeting market demand

Inactive Publication Date: 2013-01-09
XUZHOU NONGJIAHUAN AGRI TECH
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Problems solved by technology

For anthocyanins, traditional extrac...

Method used

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Embodiment

[0008] A process for ultrasonically extracting anthocyanins from purple corn leaves, characterized in that: the optimal process conditions are: ultrasonic time 24-24.98min, ultrasonic power 300w, solid-liquid ratio 1:309 / mL, ethanol concentration 79.25%, extraction twice , the anthocyanin yield was 3507.7mg / 1009.

[0009] The process for ultrasonically extracting anthocyanins from purple corn leaves is characterized in that: firstly crush purple corn bracts, accurately weigh the crushed corn leaves, add citric acid acidified ethanol solvent for ultrasonic extraction, extract twice, and filter the extract , Determination of anthocyanin content after centrifugation.

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Abstract

The invention relates to extraction of corn anthocyanin, particularly relates to a process for ultrasonic extraction of the anthocyanin of purple corn leaves and belongs to the technical field of the chemical industry. The process includes that firstly purple corn bract is smashed, corn leaves is weighed accurately, the corn leaves are smashed, citric acid acidified ethanol solvent is added, ultrasonic extraction is performed for two times, and anthocyanin content is determined after extracting solution is filtered and centrifuged. Ultrasonic-assisted extraction has the advantages of being convenient, rapid, simple, safe and the like, the anthocyanin in the purple corn bract is extracted by using the ultrasonic extraction technology, and extraction process parameters are optimized so as to obtain the maximum extraction yield of the anthocyanin in the purple corn bract.

Description

technical field [0001] The invention relates to an extraction of corn anthocyanins, in particular to a process for ultrasonically extracting purple corn leaf anthocyanins, which belongs to the technical field of chemical industry. Background technique [0002] my country is a large agricultural country, and the yield of corn is very high. For the treatment of leftovers such as corn leaves, corn leaves are mostly used for weaving in northern areas, and most of them are used as feed in other areas, especially purple corn stems, leaves, and fruits. Containing a large amount of anthocyanins, the source is wide, the price is low, and it is a good source for extracting anthocyanins. The content of anthocyanin in purple corn bracts is particularly rich. Anthocyanin is a kind of pigment that widely exists in the plant kingdom and appears red to blue. Its main sources are grapes, red currants, black currants, strawberries, apples, Cherries, purple corn, etc. Purple corn anthocyanins...

Claims

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Application Information

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IPC IPC(8): C07D311/62
Inventor 孙中礼
Owner XUZHOU NONGJIAHUAN AGRI TECH
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