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Ginkgo leaf extract fish feed adhesive as well as preparation method and application thereof

A technology of ginkgo biloba leaf and extract is applied in the field of ginkgo biloba extract fish feed adhesive and preparation, which can solve the problems of high price of fish feed adhesive, complicated processing technology, residual risk and the like, and achieves economic and social improvement. Benefit, less dosage, good bonding effect

Active Publication Date: 2020-03-24
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing fish feed adhesives have disadvantages such as high price, residual risk, poor palatability, and complicated processing technology. Abandoned, the purpose is to provide a kind of Ginkgo biloba extract fish feed adhesive and its preparation method and application, using Ginkgo biloba extract as aquatic feed adhesive, has low price, less dosage, wide source, non-toxic, easy processing , does not affect the absorption of nutrients by fish and shrimp, good bonding effect and strong water stability, etc.

Method used

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  • Ginkgo leaf extract fish feed adhesive as well as preparation method and application thereof
  • Ginkgo leaf extract fish feed adhesive as well as preparation method and application thereof
  • Ginkgo leaf extract fish feed adhesive as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A kind of Ginkgo biloba extract of the present invention is used as the application of fish feed adhesive,

[0035] 1. Extract Ginkgo biloba extract

[0036] Grind 1000g of dried ginkgo leaves through a 18-mesh sieve to obtain ginkgo leaf powder or grind and pulverize 1000g of fresh ginkgo leaves; take 400g of ginkgo leaf powder, mix it with petroleum ether at a ratio of 1:7, and rotate and stir at 800 rpm for 6 hours; Filter the mixed solution to obtain the filtrate and residue (repeat the extraction 3 times); distill the filtrate under reduced pressure to constant weight to remove petroleum ether, and obtain the Ginkgo biloba petroleum ether extract. The ratio was mixed, and 800 rpm was rotated and stirred for 6 hours; the mixed solution was filtered to obtain the filtrate and residue (repeated extraction 3 times); the filtrate was distilled under reduced pressure to constant weight to remove ethyl acetate, and the ethyl acetate extract of Ginkgo biloba was obtained ...

Embodiment 2

[0054] According to the same formula and method as in Example 1, the water extract of ginkgo biloba was added to the fish feed in proportions of 0.0, 0.2, 0.4, 0.8, 1.2, 1.6, 2.4 and 3.2%, respectively, and sodium alginate was used as a contrast. The corresponding 8 kinds of pellet feeds were prepared under conditioning at room temperature. The hardness, powder content rate and pulverization rate are measured by the same method as above; the dissolution loss rate is measured by the immersion weight loss method commonly used in the industry at present; the shape retention time is measured by the standard SC148-87 immersion time method of the Ministry of Agriculture in 1987, and relevant analysis is carried out. Results (see Figure 4 , 5 , 6, 7 and 8) showed that the water extract of Ginkgo biloba improved the hardness of feed granules, reduced the powder content, pulverization rate and dissolution loss rate, and prolonged the shape retention time.

[0055] According to the d...

Embodiment 3

[0057] At present, feed production is mostly high-temperature steam conditioning, and room temperature conditioning is not common in reality. Considering the influence of different tempering temperatures on the experimental results, we added the water extract of ginkgo biloba leaves to the feed at the same concentration as above according to the same formula and method above, and also used sodium alginate as a control, and heated it at 80°C. After water conditioning, 8 kinds of pellet feeds were made correspondingly. Determine the hardness, powder content rate, pulverization rate, dissolution loss rate and shape retention time by the same method as above, and carry out relevant analysis. Results (see Figure 9 , 10 , 11, 12 and 13) showed that the water extract of Ginkgo biloba further improved the hardness of the feed pellets, reduced the powder content, pulverization rate and dissolution loss rate, and prolonged the shape retention time.

[0058] Data analysis shows that ...

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Abstract

The invention discloses a ginkgo leaf extract fish feed adhesive as well as a preparation method and an application thereof. The ginkgo leaf extract is used as an aquatic feed adhesive, has the effects of reducing the powder content, the pulverization rate and the dissolution rate of a feed and prolonging the shape preserving time of the feed in water, does not influence the absorption of fish andshrimps on nutritional ingredients, and is good in adhesion effect and high in water stability; the new application of the ginkgo leaves is developed, the traditional utilization structure of the ginkgo leaves is improved, the comprehensive utilization potential of the ginkgo leaves is exerted, waste is turned into wealth, the economic and social benefits of the ginkgo leaves are improved, and the feed adhesive has very important significance and has the advantages of low price, small dosage, wide source, no toxicity and simplicity and convenience in processing.

Description

technical field [0001] The invention relates to the field of aquatic products, in particular to a ginkgo leaf extract fish feed adhesive and its preparation method and application. Background technique [0002] Adhesives are unique additives that play a role in bonding and forming in fish pellet feed. The role of the binder is to bind various ingredients together, maintain the shape of feed particles, prevent the dissolution and collapse of feed ingredients in water, facilitate fish and shrimp feeding, improve feed efficiency, and prevent water quality from deteriorating. At present, fish feed binders are mainly chemical synthetic substances and natural substances, such as carboxymethyl cellulose, sodium polyacrylate, sodium alginate, wheat flour, etc. Some of them have high prices, residual risks, poor palatability, and complicated processing techniques. shortcoming. [0003] Ginkgo biloba is a plant of the Ginkgo family. Traditional Chinese medicine believes that it has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/30
CPCA23K50/80A23K10/30Y02A40/818
Inventor 李华涛
Owner NEIJIANG NORMAL UNIV
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