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Litchi can rich in litchi pulp polyphenol QRR and preparation method thereof

A technology for lychee pulp and canned lychee, which is applied in the fields of fruit and vegetable preservation, heating preservation of fruits/vegetables, and preservation of fruits/vegetables through radiation/electrical treatment, etc. Polyphenol QRR damage and other problems, to achieve good antioxidant activity, protection of nutritional value, tissue shape and good taste

Pending Publication Date: 2019-11-19
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the processing, storage, and marketing of canned lychee, if the polyphenol QRR in litchi pulp is not properly controlled, most of them will be destroyed and cannot be well utilized, which has become a major problem that plagues the development of the litchi processing industry.

Method used

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  • Litchi can rich in litchi pulp polyphenol QRR and preparation method thereof
  • Litchi can rich in litchi pulp polyphenol QRR and preparation method thereof
  • Litchi can rich in litchi pulp polyphenol QRR and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The canned food rich in lychee pulp polyphenol QRR is composed of the following raw materials by weight: 50 parts of lychee pulp, 24 parts of sodium citrate, 4 parts of disodium hydrogen phosphate, 13 parts of sucrose, 4 parts of vitamin C, carboxymethyl cellulose (CMC) 3 parts, a total of 0.3 parts of composite starch octyl succinate and sodium alginate, wherein the ratio of composite starch octyl succinate and sodium alginate is 1:1.

[0033] The preparation method includes the following steps:

[0034] S1. Choose fresh lychees and clean them, peel them, dig the core, wash the lychee pulp and soak in clean water for 30 minutes;

[0035] S2. High temperature and humid steam, microwave inactivation of enzymes: spread the lychee pulp in step S1 evenly on the dish, and first subject the lychee pulp to 110-130°C high-temperature humid-heat steam treatment for 20-30s and then 800W microwave treatment for 0.8-1.2min ;

[0036] S3. Preparation of aqueous sugar solution: 0.1mol·L -1 ...

Embodiment 2

[0041] The canned food rich in lychee pulp polyphenol QRR is composed of the following raw materials: 40 parts of lychee pulp, 25 parts of sodium citrate, 5 parts of disodium hydrogen phosphate, 12 parts of sucrose, 5 parts of vitamin C, 5 parts of CMC, compound A total of 0.2 parts of starch octyl succinate and sodium alginate, in which the ratio of composite starch octyl succinate and sodium alginate is 6:4.

[0042] The preparation method includes the following steps:

[0043] S1. Choose fresh lychees and clean them, peel them, dig the core, wash the lychee pulp and soak in clean water for 30 minutes;

[0044] S2. High temperature and humid steam, microwave inactivation of enzymes: spread the lychee pulp in step S1 evenly on the dish, and first subject the lychee pulp to 110-130°C high-temperature humid-heat steam treatment for 20-30s and then 800W microwave treatment for 0.8-1.2min ;

[0045] S3. Preparation of aqueous sugar solution: 0.1mol·L -1 Sodium citrate solution and 0.2mo...

Embodiment 3

[0050] The canned food rich in lychee pulp polyphenol QRR is composed of the following raw materials: 60 parts of lychee pulp, 23 parts of sodium citrate, 3 parts of disodium hydrogen phosphate, 15 parts of sucrose, 2 parts of vitamin C, 2 parts of CMC, compound A total of 0.5 parts of starch octyl succinate and sodium alginate, in which the ratio of composite starch octyl succinate and sodium alginate is 4:6.

[0051] The preparation method includes the following steps:

[0052] S1. Choose fresh lychees and clean them, peel them, dig the core, wash the lychee pulp and soak in clean water for 30 minutes;

[0053] S2. High temperature and humid steam, microwave inactivation of enzymes: spread the lychee pulp in step S1 evenly on the dish, and first subject the lychee pulp to 110-130°C high-temperature humid-heat steam treatment for 20-30s and then 800W microwave treatment for 0.8-1.2min ;

[0054] S3. Preparation of aqueous sugar solution: 0.1mol·L -1 Sodium citrate solution and 0.2mo...

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Abstract

The invention discloses a can rich in litchi pulp polyphenol QRR and a preparation method thereof. The can rich in the litchi pulp polyphenol QRR is prepared from the following raw materials in partsby weight: 40-60 parts of litchi pulp, 23-25 parts of sodium citrate, 3-5 parts of disodium hydrogen phosphate, 12-15 parts of sucrose, 2-5 parts vitamin C, 2-5 parts of carboxymethyl cellulose and 0.2-0.5 part of compound octyl succinate starch and sodium alginate. The can rich in the litchi pulp polyphenol QRR takes the litchi pulp as the basic raw materials, and is matched with corresponding sugar and water components, the sodium alginate and the octyl succinate starch components, the litchi pulp polyphenol QRR can be protected from being damaged during processing, and the color is protected; and in addition, the content of the litchi pulp polyphenol QRR does not decrease significantly during long-term storage, the antioxidant activity of the litchi can is improved, and the can rich inthe litchi pulp polyphenol QRR has commercial value in the litchi can processing industry.

Description

Technical field [0001] The invention belongs to the field of food technology, and more specifically, relates to a litchi canned food rich in litchi pulp polyphenol QRR and a preparation method thereof. Background technique [0002] Lychee is a tropical and subtropical fruit. It is bright red when mature, and its delicious taste is loved by people. Chinese medicine believes that the pulp of lychee has the effects of invigorating the spleen, liver, and beauty. Polyphenols are a large class of important non-nutrient plant active substances, which play an important role in maintaining human health and reducing the risk of many chronic diseases. The content of polyphenols in lychee pulp is very rich, and it contains a kind of polyphenol QRR (quercetin-3-O-rutose-7-O-α-L-rhamnoside) unique to lychee pulp. Studies have shown that it has Strong cellular antioxidant capacity, anti-inflammatory, anti-radiation and liver protection. [0003] The harvest season of litchi is in midsummer and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23B7/005A23B7/015
CPCA23L19/03A23B7/0053A23B7/015A23V2002/00
Inventor 苏东晓曾庆祝舒彬王智能熊雄
Owner GUANGZHOU UNIVERSITY
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