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The technology of extracting lycopene from tomato pomace

A technology of lycopene and tomato skin residue, which is applied in extraction and purification/separation, hydrocarbon purification/separation, organic chemistry, etc., and can solve the problems of high production cost, unsuitable for large-scale production, nutrient-destroying feed, and no purification scheme, etc. problems, to achieve the effect of strong continuous operability, less residue, and suitable for large-scale industrial production

Active Publication Date: 2022-02-08
长沙卫一生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process uses acidic buffer solution and pentosan complex enzyme to carry out enzymatic extraction of tomato skin residue, which not only results in a large amount of protein, sugar, and other water-soluble impurities in the extract, which affects product quality, but also uses a large amount of acidic solution Extraction will pollute the environment; use acid buffer solution and pentosan compound enzyme to carry out enzymatic hydrolysis and extraction, and the nutrients in the tomato skin residue are completely destroyed and cannot continue to be used as feed. The high production cost is not suitable for large-scale production. Moreover, this process does not Purification and Refining Scheme

Method used

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  • The technology of extracting lycopene from tomato pomace

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Embodiment 1

[0029] Using 50kg tomato peel as raw material, crush the raw material to 20-40 mesh; add tomato peel powder into a subcritical extraction tank, then add difluoroethane 5 times the weight of tomato peel powder, and extract at 40°C for 5 30 minutes each time, the extracts were combined; the extracts were heated at 40°C to recover the solvent to obtain 485.32 g of crude lycopene; the crude lycopene was pressurized on a silica gel chromatography column and used 1-5 times the column volume A mixture of chloroform and methanol with a volume ratio of 1:1 was used for elution (pressure 0.6Kg / cm 2 ), collect the eluate from the target segment; concentrate and dry the eluate in vacuum at 40°C to obtain 18.56 g of refined lycopene; use 5 times the weight of the refined lycopene with acetic acid with a volume ratio of 9:1 The mixed solvent of ethyl ester and petroleum ether was heated and dissolved at 55°C, and then refrigerated and crystallized at 2-5°C to obtain 12.31g of high-purity ly...

Embodiment 2

[0031] Using 50kg of tomato peel as raw material, crush the raw material to 20-40 mesh; add tomato peel powder into a subcritical extraction tank, then add difluoroethane 8 times the weight of tomato peel powder, and extract at 50°C for 3 time, 60 minutes each time, and combine the extracts; heat the extracts at 50°C to recover the solvent, and obtain 493.32g of crude lycopene; pressurize the crude lycopene on a silica gel chromatography column, and use 1-5 times the column volume A mixture of chloroform and methanol with a volume ratio of 1:1 was used for elution (pressure 1Kg / cm 2 ), collect the eluate of the target segment; concentrate and dry the eluate in vacuum at 50°C to obtain 18.93g of refined lycopene; use 20 times the weight of the refined lycopene with acetic acid with a volume ratio of 9:1 The mixed solvent of ethyl ester and petroleum ether was heated and dissolved at 65°C, and then refrigerated and crystallized at 2-5°C to obtain 12.81g of high-purity lycopene c...

Embodiment 3

[0033] Using 200kg tomato peel as raw material, crush the raw material to 20-40 mesh; add tomato peel powder into a subcritical extraction tank, then add difluoroethane 7 times the weight of tomato peel powder, and extract at 45°C for 4 times, each extraction lasts for 45 minutes, and the extracts are combined; the extract is heated at 45°C to recover the solvent, and 1964.08g of crude lycopene is obtained; the crude lycopene is pressurized on a silica gel chromatography column, and the column volume is 1-5 times A mixture of chloroform and methanol with a volume ratio of 1:1 was used for elution (pressure 0.8Kg / cm 2 ), collect the eluate of the target segment; concentrate and dry the eluate in vacuum at 45°C to obtain 72.19g of refined lycopene; use 12 times the weight of the refined lycopene with acetic acid with a volume ratio of 9:1 The mixed solvent of ethyl ester and petroleum ether was heated and dissolved at 60°C, and then refrigerated and crystallized at 2-5°C to obta...

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Abstract

A process for extracting lycopene from tomato pomace. The raw tomato pomace is crushed and subcritically extracted. The extract is heated to recover the solvent. The obtained crude lycopene is eluted on a silica gel chromatography column. Collect the eluate from the target segment; then concentrate and dry the eluate in vacuum to obtain refined lycopene; heat and dissolve the refined lycopene with a mixed solvent of ethyl acetate and petroleum ether, refrigerate and crystallize to obtain high-purity tomato Red crystals. This process uses difluoroethane as the extraction solvent, the extraction conditions are mild, and the extraction selectivity of lycopene in the raw material is good. If it continues to be used as feed, zero cost of raw materials can be realized; at the same time, crude product, refined product and high-purity lycopene products with three different purities can be obtained, and the process is simple, continuous operability is strong, and it is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to extraction and separation technology of plant active components, in particular to a technology for extracting lycopene from tomato pomace. Background technique [0002] With the increase of China's tomato planting area and tomato paste production year by year, my country has become the second largest tomato paste producer and the largest tomato paste exporter in the world. In the production process of tomato paste, tomato juice, etc., the crushed tomato sauce is separated and discharged through a homogenizer, and usually 4%-5% of the tomato peel is produced. Tomato pomace contains crude protein 14.89%-23.4%, crude fat 10.3%-16.8%, acid detergent fiber 47.6%-51.67%, neutral detergent fiber 9.2%-60%, calcium 0.22%-0.54%, phosphorus 0.41% -0.6%, etc., while the tomato peel residue also contains lycopene content of 20-50mg / 100g. Lycopene is a natural pigment contained in plants, and it is one of the strongest antioxidants found i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C7/00C07C11/21C07C7/12C07C7/14C07C7/10
CPCC07C7/005C07C7/12C07C7/14C07C7/10C07C11/21
Inventor 何泽方刘喜荣
Owner 长沙卫一生物科技有限公司