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Mulberry leaf extract fish feed adhesive, and preparation method and application of mulberry leaf extract

A technology of mulberry leaf extract and fish feed, which is applied in the direction of animal feed, animal feed, application, etc., can solve the problems of high price of fish feed adhesive, complicated processing technology, residual risk, etc., and improve the utilization structure of mulberry leaves. , less dosage, and the effect of improving the economic and social benefits of mulberry leaves

Active Publication Date: 2020-05-01
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. At the same time, although mulberry leaves are rich in resources, their utilization is very limited, and a large number of mulberry leaves are covered by mulberry leaves every year. Abandoned, the purpose is to provide a mulberry leaf extract fish feed adhesive and its preparation method and application. Using mulberry leaf extract as an aquatic feed adhesive has the advantages of low price, low dosage, wide source, non-toxicity, and 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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  • Mulberry leaf extract fish feed adhesive, and preparation method and application of mulberry leaf extract
  • Mulberry leaf extract fish feed adhesive, and preparation method and application of mulberry leaf extract
  • Mulberry leaf extract fish feed adhesive, and preparation method and application of mulberry leaf extract

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Effect test

Embodiment 1

[0034] The invention relates to the application of a mulberry leaf extract as a fish feed binder.

[0035] 1. Extraction of mulberry leaf extract

[0036] Grind 1000g of dried mulberry leaves through a 18-mesh sieve to obtain mulberry leaf powder or grind and pulverize 1000g of fresh mulberry leaves; take 400g of mulberry 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 mulberry leaf 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 mulberry leaf ethyl acetate extract was obtained ; The...

Embodiment 2

[0054] According to the same formula and method as in Example 1, the mulberry leaf water extract 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. Determine the hardness, powder content and pulverization rate according to the same method as above; use the immersion weight loss method commonly used in the feed industry to determine the dissolution loss rate; use the 1987 standard SC148-87 soaking time method of the Ministry of Agriculture to determine the shape retention time, and perform related analysis . Results (see Figure 4 , 5 , 6, 7 and 8) showed that the water extract of mulberry leaves improved the hardness of the feed pellets, reduced the powder content, pulverization rate and dissolution loss rate, and prolonged the shape retention time.

[0055] According to the data analy...

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 mulberry leaves to the feed at the same concentration as above according to the same formula and method above. Water conditioning and conditioning made of the corresponding 8 kinds of pellet feed. 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 mulberry leaves 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 when the amount of mulberry leaf water extract is 3.28-3.5%, ...

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Abstract

The invention discloses a mulberry leaf extract fish feed adhesive, and a preparation method and application of mulberry leaf extract. The mulberry leaf extract is taken as an aquatic feed adhesive soas to perform the functions of lowering the powder content, the pulverization rate and the dissolve-loss ratio of the feed and prolonging the shape-preserving time of the feed in water, the absorption of nutrient ingredients by fishes and shrimps is not affected, an adhesion effect is good, and water stability is good. A new purpose of mulberry leaves is developed, a traditional mulberry leaf utilization structure is improved, the comprehensive utilization potential of the mulberry leaves is performed, waste materials are recycled, and the economic and social benefit of the mulberry leaves can be improved. The invention has a very important meaning and has the advantages of low cost, a small use amount, wide sources, no toxicity and convenience in processing.

Description

technical field [0001] The invention relates to the field of aquatic products, in particular to a mulberry 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] Mulberry planting has a long history in my country, and mulberry leaves are mainly used to rais...

Claims

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Application Information

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