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Resource utilization method of incompletely ripe tomatoes

An incomplete and resource-based technology, applied in the field of food ingredient production, can solve the problems of cytotoxicity, embryo toxicity, vomiting, diarrhea, etc., and achieve the effect of improving the utilization rate

Active Publication Date: 2020-12-25
JIANGNAN UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of tomatine is high, which makes it have a bitter taste, and it may cause vomiting, diarrhea and other intestinal symptoms after eating too much. It has certain cytotoxicity and embryotoxicity, which is one of the reasons why immature tomatoes are difficult to use

Method used

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  • Resource utilization method of incompletely ripe tomatoes
  • Resource utilization method of incompletely ripe tomatoes
  • Resource utilization method of incompletely ripe tomatoes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: a kind of method of resourceful utilization of immature tomato

[0039] (1) Screening of raw materials: select fresh and intact tomatoes at the ripening stage, free of mildew and rot, as raw materials, clean them, beat them, and filter them to remove seeds.

[0040] (2) Pectinase treatment: add pectinase 1500U / L tomato pulp, enzymolysis temperature 55°C, enzymolysis time 45min.

[0041] (3) Centrifugal separation: the tomato pulp after enzymolysis is cooled and then centrifuged at a speed of 8000r / min to achieve solid-liquid separation, remove part of the water-soluble matter in the raw material, and obtain concentrated tomato pulp.

[0042] (4) Vacuum drying: vacuum-dry the concentrated slurry obtained in step (3), dry at 0.07MPa, 60°C for 1h, and finally obtain tomato powder with a moisture content of 34.2%, phytoene and phytoene The total content is 0.85mg / g, and the lycopene content is 2.12mg / g.

[0043] (5) Solvent extraction: Weigh 20g of low-moist...

Embodiment 2

[0048] (1) Screening of raw materials: select fresh and intact tomatoes at the ripening stage, free of mildew and rot, as raw materials, clean them, beat and sieve, filter and remove seeds.

[0049] (2) Pectinase treatment: add pectinase 2000U / L tomato pulp, enzymolysis temperature 60°C, enzymolysis time 30min.

[0050] (3) Centrifugal separation: the tomato pulp after enzymolysis is cooled and then centrifuged at a speed of 6000r / min to achieve solid-liquid separation, remove part of the water-soluble matter in the raw material, and obtain concentrated tomato pulp.

[0051] (4) Vacuum drying: vacuum-dry the tomato concentrated slurry obtained in step (3), and dry it at 0.08MPa and 55°C for 2 hours. At this time, the water content in the tomato powder is 22.4%. The total content of red pigment is 0.97mg / g, and the content of lycopene is 2.52mg / g.

[0052] (5) Solvent extraction: Weigh 20g of low-moisture tomato pulp obtained in step (4), and add absolute ethanol as a solvent ...

Embodiment 3

[0057] (1) Screening of raw materials: Use fresh and intact tomatoes in discoloration period, no mildew and rot as raw materials, clean them, beat and sieve, filter and remove seeds.

[0058] (2) Pectinase treatment: add pectinase 1000U / L tomato pulp, enzymolysis temperature 50°C, enzymolysis time 90min.

[0059] (3) Centrifugal separation: the tomato pulp after enzymolysis is cooled and then centrifuged at a speed of 7000r / min to achieve solid-liquid separation, remove part of the water-soluble matter in the raw material, and obtain concentrated tomato pulp.

[0060] (4) Vacuum drying: Vacuum-dry the concentrated tomato pulp obtained in step (3), and dry it at 0.08MPa and 50°C for 2 hours. At this time, the water content in the tomato powder is 25.9%. The total content of red pigment is 0.91 mg / g, and the content of lycopene is 2.47 mg / g.

[0061] (5) Solvent extraction: Weigh 20g of dried low-moisture tomato pulp obtained in step (4), add absolute ethanol as a solvent in a ...

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Abstract

The invention discloses a resource utilization method of incompletely ripe tomatoes, and belongs to the technical field of food ingredient production. According to the method, tomatoes which are not completely ripe or tomato products which are not completely ripe are used as raw materials, moisture content of the tomatoes is controlled to be 20%-40%, then ethyl alcohol is used as an extracting agent for separation and extraction, and an extract containing phytofluene and phytoene and an extract containing lycopene are obtained respectively. According to the method, the moisture content is adjusted to be 20%-40%, alkaloid contained in the raw materials is removed to the maximum extent, meanwhile, content of lycopene, phytofluene and phytoene is not affected, graded extraction is conducted through solubility difference, and a product with a content of phytofluene and phytoene being 0.9-1.1% is obtained; meanwhile, subsequent extraction of lycopene with strong hydrophobicity is also facilitated, and extraction rate is as high as 85%.

Description

technical field [0001] The invention relates to a resource utilization method of immature tomatoes, which belongs to the technical field of food ingredient production. Background technique [0002] The ripening process of tomatoes can be roughly divided into four periods, namely the green ripening period, the discoloration period, the hard ripening period and the fully ripened period. At present, in the process of tomato processing (such as the production of tomato sauce), tomatoes in the fully ripened period are used as raw materials. As many as 20%-25% of immature tomatoes will be sorted out and directly discarded as waste, resulting in a huge waste of resources and a greater degree of pollution to the environment. [0003] Tomatoes can form a variety of secondary metabolites during the growth process, such as carotenoids, polyphenols, alkaloids, etc. The most important alkaloid in tomato is tomatine, which is composed of a tetrasaccharide side chain and a steroidal aglyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L5/00
CPCA23L33/105A23L5/00A23V2002/00A23V2200/30A23V2250/213A23V2300/14A23V2300/10
Inventor 张连富马璐璐张建刘中海刘雯肖莉张国玉
Owner JIANGNAN UNIV
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