What are amino acids? Uses for crops

Amino acid: A general name for a class of organic compounds containing amino and carboxyl groups. The basic building blocks of biofunctional macromolecular proteins are the basic substances that constitute the proteins required for animal nutrition.

are organic compounds containing one basic amino group and one acidic carboxyl group. The amino group attached to the -carbon is the -amino acid. The natural amino acids are all -amino acids.

The role of amino acids with other nutrients.

Digestion and absorption of protein in the body.

As the first nutritional element in the body, protein's role in food nutrition is obvious, but it cannot be directly used in the human body, but is used by turning it into a small molecule of amino acids. That is, it is not directly absorbed by the human body in the gastrointestinal tract of the human body, but in the gastrointestinal tract through the action of a variety of digestive enzymes, the polymer protein is broken down into low-molecular polypeptides or amino acids, and then absorbed in the small intestine and enters the liver along the hepatic portal vein. A portion of amino acids are broken down or synthesized in the liver; The other part of the amino acids continues to be distributed with the blood to various tissues and organs, where they can choose to synthesize various specific tissue proteins.

Under normal circumstances, amino acids enter the blood at almost the same rate as their output, so the amount of amino acids in the blood of a normal person is quite constant. If the amino nitrogen is calculated, the content is 4 6 mg per 100 milliliters of plasma, and the content is milligrams per 100 milliliters of blood cells. After a full meal of protein, a large amount of amino acids is absorbed, and the level of amino acids in the blood temporarily increases, and after 6 to 7 hours, the content returns to normal.

These results indicate that amino acid metabolism in the body is in dynamic equilibrium, with blood amino acids as its balance hub, and the liver is an important regulator of blood amino acids. Therefore, food proteins are digested and broken down into amino acids, which are absorbed by the body, and antibodies use these amino acids to synthesize their own proteins. The body's need for protein is actually the need for amino acids.

It plays a role in nitrogen balance.

When the quality and quantity of protein in the daily diet are appropriate, the amount of nitrogen ingested is equal to the amount of nitrogen excreted by feces, urine and **, which is called the total nitrogen balance. In fact, there is a balance between the constant synthesis and breakdown of proteins and amino acids. The daily protein intake of normal people should be kept within a certain range, and when the amount of food consumed is suddenly increased or decreased, the body can still regulate the amount of protein metabolism to maintain nitrogen balance.

If you eat too much protein and exceed the body's ability to regulate, the homeostasis mechanism will be disrupted. If you don't eat protein at all, the tissue protein in the body will still decompose, and the negative nitrogen balance will continue to occur, and if you don't take measures to correct it in time, it will eventually lead to the death of antibodies. Amino acid.

Amino acids are the basic units of protein, which provide the elements needed for crop production, promote absorption and transformation, and have related hormones, and some chemical fertilizers, pesticides and other crop drugs contain amino ingredients

<> Efficacy: Promote early maturity of crops and shorten the growth cycle of crops; Increase the thickness and area of the leaves of crops, increase the rate of accumulation of dry matter, etc. What it does:

Increase the chlorophyll content in crops and improve the absorption and utilization rate of carbon dioxide in crops; improve the soil and increase the water and fertilizer retention capacity of the soil; Enhance the ability of crops to resist cold, drought and lodging.

1. The efficacy of agricultural amino acids

1. Fast absorption.

The nutrients contained in agricultural amino acid fertilizers can be quickly absorbed by various organs of crops, and can also promote early maturation and shorten the growth cycle of crops.

2. Strengthen physiological and biochemical functions.

1) Make the stalks of crops thicker, thicker the leaves, increase the area of the leaves, and at the same time, the accumulation rate of dry matter in the crop body will also be accelerated.

2) Enhance the cold resistance, drought resistance, dry and hot wind resistance, disease and pest resistance, lodging resistance of crops, and at the same time make crops achieve high and stable yields.

Second, the role of agricultural amino acids

1. Promote photosynthesis of crops.

1) Glycine in agricultural amino acid fertilizers can increase the chlorophyll content in crops, and at the same time enhance the absorption and utilization rate of carbon dioxide by crops.

2) Add power to the photosynthetic process of crops so that their photosynthesis becomes more vigorous.

2. Improve the soil.

1) Improve the physical and chemical properties of the soil and enhance the water and fertilizer retention capacity of the soil.

2) Increase the air permeability of the soil and maintain and mature the soil.

Agricultural amino acid fertilizer is rich in nutrients, comprehensive nutrition, containing inorganic nutrients nitrogen, phosphorus and potassium, as well as trace elements organic components, organic matter, etc., has been widely used in the growth process of crops Yuyu, the effect is relatively good after use, and has been recognized by the general public. However, there are still many farmers who do not know much about agricultural amino acids, so let's talk about the efficacy and role of agricultural amino acids.

Efficacy of agroamino acids.

1. The amino acids in the fast-absorbing amino acid fertilizer can be directly absorbed by various organs of the plant, passively absorbed or infiltrated under photosynthesis, and obvious effects can be observed in a short period of time after use, and at the same time can promote the early maturity of crops and shorten the growth cycle.

2. Strengthen physiological and biochemical functions.

After amino acids are absorbed by crops, they can strengthen their physiological wheel dismantling and biochemical functions. The crop stem is thick, the leaf is thickened, the leaf area is expanded, the dry matter formation and accumulation are accelerated, and the crop can mature early, and due to its own vitality, the resistance to cold and drought, dry and hot wind, resistance to diseases and pests, and lodging resistance are improved, so as to achieve stable yield and high yield.

The role of agroamino acids.

1. Promote the photosynthesis of plants, and glycine in amino acids can increase the content of plant chlorophyll, promote the absorption and utilization of carbon dioxide by crops, increase the power for photosynthesis, and make photosynthesis more vigorous.

2. The role of improving the soil is that the amino acid fertilizer applied to the ground has no residue, which can improve the physical and chemical properties of the soil, improve the water and fertility retention and air permeability, and play the role of waxing circle to cure, mature and improve the soil.

As follows:

The main ways of surplus transportation are: 1. Synthesis of tissue proteins. 2. Ammonia and keto acid are used to synthesize urea, and keto acid is converted into sugar or ketone body or oxidized for energy.

3. Decarboxylation produces amines. 4. Converted into purines, pyrimidines and other compounds.

Chemical properties

Reaction of amino groups: acylation reaction; reaction with nitrous acid; reacts with aldehydes; sulfonylation reaction; reacts with DNFB; Salt reaction.

The reaction of the carboxyl group of the amino acid is the same as other carboxylic acids, and under certain conditions, acylation, esterification, decarboxylation and salting reactions can occur.

Reaction with ninhydrin hydrate: amino acids and ninhydrin hydrate are heated together in a weakly acidic solution, and the corresponding ketoacids are generated by oxidative deamination, which is further decarboxylated to form aldehydes, and the hydrated ninhydrin is reduced to reduced ninhydrinone, and in the weakly acidic solution, the ammonia removed from the reduced ninhydrin and amino acids is then reacted with another hydrated ninhydrin to condense to form a blue-purple complex.

Proline and hydroxyproline react with ninhydrin to produce a yellow substance, and the rest of the amino acids react with ninhydrin to produce a blue-purple substance. This color reaction is often used for colorimetric determination of amino acids and color development for chromatography analysis.

1. Glutamic acid: mainly found in plant protein, which can be obtained by hydrolysis of wheat gluten protein. Glutamic acid has two flavors: sour and umami, of which sourness is the main taste. When alkali is added and properly neutralized, glutamic acid sodium salt is generated.

2. Agricultural amino acids provide plant nutrients and nutrients, adding nutrients such as N, P, K and trace elements Fe, Mn, Zn, Cu, Mo, B, Cl can choose different components of amino acid fertilizers according to actual needs to promote the growth of different crops.

The carbonylamide reaction between amino acids and carbohydrates is an important cause of aroma and color in food processing, and a part of amino acids and sugars are consumed during the reaction. Flavor substances are generated, and amino acids are also heated and decomposed to form certain flavor substances, or decomposed by bacteria to produce odorous substances.