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Method for extracting solanine from potato peels

A potato peel and solanine technology, applied in the field of green chemical technology, can solve problems such as insufficient product quality and market competitiveness, low purity and yield, and inconspicuous efficacy, and achieve operation and product safety, environmental friendliness, The effect of theoretical novelty

Inactive Publication Date: 2011-09-14
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, although the above-mentioned methods for extracting potato solanin and separating and purifying plant-derived alkaloids can prepare potato solanin extracts with certain purity and yield, due to the limitation of technical means and the use of a large amount of toxic Organic solvents or chemical preparations make the product obviously have defects such as poor safety or low purity and yield, easy moisture absorption, ineffective efficacy, insufficient product quality and market competitiveness, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 600 grams of the above-mentioned 5mm-thick potato skins, place them in an oven at 60°C and dry them to constant weight, pass through a 0.5mm sieve after crushing, then use ethanol with a volume concentration of 70% and adjust the pH to 3 with glacial acetic acid, and press 1 kg of potato The ratio of skin powder plus 15 liters of ethanol was filtered while hot with 160W ultrasonic assisted extraction at 65°C for 20 minutes, the filtrate was cooled rapidly, and the slag was added to 1 kg of potato skin powder with a volume concentration of 70% in the ratio of 15 liters of ethanol. Glacial acetic acid adjusted the pH to 3 ethanol at 65°C with 160W ultrasonic assisted extraction for 20 minutes, then filtered while it was hot, the filtrate was cooled quickly, and the combined filtrate was passed through 200 mesh nylon cloth, and then centrifuged at 4000 rpm Centrifuge and clarify for 10 minutes, take the clarified liquid and concentrate it at -0.05~-0.09MPa, 42°C, recov...

example 2

[0021] Take 600 grams of the above-mentioned 3mm-thick potato skins, place them in an oven at 50°C and dry them to constant weight, pass through a 0.2mm sieve after crushing, and then use ethanol with a volume concentration of 30% and adjust the pH value to 6 with glacial acetic acid, press 1 kg Potato peel powder adds the ratio of 25 liters of ethanol at 30 DEG C with 300W supersonic assisted extraction for 10 minutes and filters while it is hot, the filtrate is rapidly cooled, and the ratio of 1 kg of potato peel powder plus 25 liters of ethanol is 30% and mixed with the residue. Ethanol with a pH value of 6 adjusted by glacial acetic acid was extracted with 300W ultrasound for 10 minutes at 30°C, then filtered while it was hot, and the filtrate was cooled rapidly. Centrifuge and clarify for 5 minutes at low temperature, take the clarified liquid and concentrate under reduced pressure at -0.05~-0.09MPa, 40°C, recover the edible ethanol solvent and vacuum freeze-dry to obtain ...

example 3

[0024] Take 600 grams of the above-mentioned 6mm thick potato skins, place them in an oven at 80°C and dry them to constant weight, pass through a 0.8mm sieve after being crushed, and then use ethanol with a volume concentration of 95% and adjust the pH value to 2 with glacial acetic acid to weigh 1 kg The ratio of potato skin powder plus 10 liters of ethanol was filtered while hot with 100W ultrasonic assisted extraction at 90°C for 30 minutes, the filtrate was cooled rapidly, and the residue was added to the ratio of 1 kg of potato skin powder and 10 liters of ethanol with a volume concentration of 95%. Ethanol with a pH value of 2 adjusted by glacial acetic acid was extracted with 100W ultrasonic at 90°C for 30 minutes and then filtered while it was hot. centrifuged and clarified for 15 minutes, the clarified liquid was concentrated at -0.05~-0.09MPa and 45°C, the edible ethanol solvent was recovered and vacuum freeze-dried to obtain 155.81 grams of crude potato solanin extr...

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PUM

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Abstract

The invention relates to a method for extracting solanine from potato peels. The method comprises the following steps of: safely and innocuously extracting a crude solanine extract from potato peels by using ethanol with the assistance of ultrasonic wave; and separating and purifying the crude solanine extract by using macroporous absorption resin to obtain a potato solanine extract. The method can be used for safely, effectively and industrially producing the potato solanine extract with a purity specification of 20-35 percent to realize the high-valued utilization of potato resources and the industrial production of serial products. Moreover, the solanine which is a main active constituent of the potatoes is extracted, separated and purified by adopting a chemical technology of natural products and a modernized production technology of traditional Chinese medicine, which sufficiently embodies a green chemical production concept.

Description

Technical field: [0001] The invention relates to a green chemical technology for extracting, separating and purifying physiologically active components in horticultural plants, in particular to a method for separating and purifying solanin in potato peels by using ultrasonic-assisted extraction and macroporous adsorption resin. Background technique: [0002] Potato (Solanum tuberosum L.) is an annual herbaceous plant of the Solanaceae genus Solanaceae. It has multiple titles such as potato, yam egg, Dutch potato, and yam. my country is the largest potato producer in the world, with a planting area accounting for 1 / 4 of the world and output accounting for 1 / 5. Potato tubers are rich in starch, the content of which can reach 9% to 30%. It also contains a variety of physiologically active components such as alkaloids and anthocyanins. In recent years, studies have found that the alkaloids contained in potatoes are a type of active substance called solanine, which is a steroid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/81A61P37/02A61P11/14A61P35/00A61P1/00A01N65/38A23L1/29A23L1/30A23K1/14A61K125/00A23L33/00
CPCY02P60/87
Inventor 肖文军刘仲华龚志华钟源徐树
Owner HUNAN AGRICULTURAL UNIV
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