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Moso bamboo shoot selenium-rich nutri-plus gel and preparation method and application thereof

A technology for nutritional paste and bamboo shoots, applied in the application, fertilizer mixture, superphosphate and other directions, can solve the problems of unsustainable fertilizer effect, waste of fertilizer and selenium-enriched effect, flushing and flowing away, etc., to improve water retention and facilitate the preparation of nutritional paste , the effect of improving quality

Inactive Publication Date: 2019-10-29
CHONGQING ACADEMY OF FORESTRY SCI
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  • Description
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AI Technical Summary

Problems solved by technology

Selenium-enriched bamboo shoots are mainly used to increase the selenium content of bamboo shoots by applying selenium fertilizers and spraying selenium aerosols. However, since selenium-enriched fertilizers are generally soluble in water, they are easily washed away by rainwater on sloped bamboo forests, resulting in The fertilizer effect is not long-lasting, resulting in waste of fertilizer and poor selenium-enriching effect, so it is urgent to develop a selenium-enriched nutrient solution, which has a long-lasting fertilizer effect and ideal selenium-enriching effect of bamboo shoots

Method used

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  • Moso bamboo shoot selenium-rich nutri-plus gel and preparation method and application thereof

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Effect test

Embodiment 1

[0032] Embodiment 1: Preparation one of modified carrageenan solution:

[0033] The preparation method of modified carrageenan solution is as follows:

[0034] The present embodiment weighs raw materials according to embodiment 1 in table 1:

[0035] Preparation of selenized carrageenan sol: dissolve carrageenan in 0.1wt% sodium chloride solution, adjust pH=4.5±0.5 with sulfuric acid, then add sodium selenite, stir well to obtain sol, add sol to In the reaction kettle, take it out after reacting for 12 hours at a pressure of 1.5MPaMpa and a temperature of 55°C, and then dialyze it through a dialysis bag with a molecular cut-off of 500 for 24 hours to obtain a selenized carrageenan sol;

[0036] Preparation of modified carrageenan solution: Dissolve zein in 95wt% ethanol solution, then add selenized carrageenan sol, and stir at a speed of 800rpm for 30min to obtain a reaction solution. The amount of selenized carrageenan in the reaction solution is The concentration is 32wt%,...

Embodiment 2

[0037] Embodiment 2: the preparation two of modified carrageenan solution:

[0038] The preparation method of modified carrageenan solution is as follows:

[0039] The present embodiment weighs raw materials according to embodiment 2 in table 1:

[0040]Preparation of selenized carrageenan sol: dissolve carrageenan in 0.05wt% sodium chloride solution, adjust pH=5±0.5 with sulfuric acid, then add sodium selenite, stir well to obtain sol, add sol to In the reaction kettle, take it out after reacting for 10 hours at a pressure of 1.6MPaMpa and a temperature of 60°C, and then dialyze it through a dialysis bag with a molecular cutoff of 500 for 24 hours to obtain a selenized carrageenan sol;

[0041] Preparation of modified carrageenan solution: Dissolve zein in 95wt% ethanol solution, then add selenized carrageenan sol, and stir at a speed of 900rpm for 25min to obtain a reaction solution. The amount of selenized carrageenan in the reaction solution is The concentration is 34wt%...

Embodiment 3

[0042] Embodiment 3: the preparation three of modified carrageenan solution:

[0043] The preparation method of modified carrageenan solution is as follows:

[0044] The present embodiment takes by weighing raw materials according to embodiment 3 in table 1:

[0045] Preparation of selenized carrageenan sol: dissolve carrageenan in 0.05wt% sodium chloride solution, adjust pH=5±0.5 with sulfuric acid, then add sodium selenite, stir well to obtain sol, add sol to In the reaction kettle, take it out after reacting for 8 hours at a pressure of 1.7MPaMpa and a temperature of 55°C, and then dialyze through a dialysis bag with a molecular cut-off of 500 for 36 hours to obtain a selenized carrageenan sol;

[0046] Preparation of modified carrageenan solution: Dissolve zein in 95wt% ethanol solution, then add selenized carrageenan sol, and stir at a speed of 1000rpm for 20min to obtain a reaction solution. The amount of selenized carrageenan in the reaction solution is The concentrat...

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Abstract

The invention discloses moso bamboo shoot selenium-rich nutri-plus gel and a preparation method and application thereof, and belongs to the technical field of bamboo shoot nutrient solutions. The nutri-plus gel is prepared from the raw materials of potassium nitrate, calcium superphosphate, dicyandiamide, amino acid fertilizer, ferric chloride, L-selenomethionine, glucose powder, a modified carrageenan solution and xanthan gum; and the modified carrageenan solution is obtained in the mode that carrageenan is subjected to selenylation and then modified by zein. According to the moso bamboo shoot selenium-rich nutri-plus gel and the preparation method and application thereof provided by the invention, the prepared nutri-plus gel is used for the shooting period of moso bamboo shoots, can adhere to soil, is not prone to being washed away by rainwater, provides nutrients for bamboo forests continuously, and is good in selenium-rich effect, the quality of the obtained moso bamboo shoots is high, and female bamboos can grow normally while the high yield of the bamboo shoots is kept.

Description

technical field [0001] The invention relates to the technical field of bamboo shoot nutrient solution, in particular to a selenium-enriched nutrient paste of moso bamboo shoots, a preparation method and application thereof. Background technique [0002] Moso bamboo (Phyllostachysedulis) is a plant belonging to the genus Gramineae. It is an ecological and economic bamboo species with the widest distribution range, the largest area, the longest cultivation and utilization history, and the highest economic value in China. It is also one of the most versatile tree species among forest wood bamboos. Occupy a very important position in bamboo resources in China and even in the world. Moso bamboo forests are divided into typical "big and small years", that is, "different-age forests". In the big year, the shoots are mainly completed, and in the small year, the whip and leaf change are mainly completed. The rapid growth period of moso bamboo is an important physiological period, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08
CPCC05B1/02C05G3/00C05G3/90C05G5/20
Inventor 童龙陈丽洁李彬耿养会张磊陈桂兰
Owner CHONGQING ACADEMY OF FORESTRY SCI
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