The types of underground pests that occur in the fields in Langfang City, Hebei Province are mainly the golden-earworms, cockroaches, cockroaches, and earthworms. These pests often eat seeds or bite off the underground rhizomes to cause seedlings to die; or to eat underground rhizomes to make the crop grow weaker and affect the yield and quality of the melons. Now introduce several prevention methods. First, the application of adequate decomposition of organic fertilizer, and in the manure block a certain amount of the agent, the drug selection is diazinon 50 grams or 80% of dichlorvos EC 1000 times. Second, the fall to the ground to kill part of the overwintering. Third, choose coated seeds. Fourth, after discovering the harm of underground pests, it is necessary to promptly pour roots with pesticides. The pharmaceutical agent is selected as Lesiben, and the dosage of mu is 400-500 ml. Fifth, the use of soil insects to kill 4000-8000 grams per mu, control effect is not bad.
Therefore, amino acids are not only essential for human health, but also play an important role in beauty and skin care products.
Amino acids are the basic units of proteins and are essential organic compounds in life. There are about 500 different amino acids in nature, but among the amino acids that make up the proteins of living organisms, 20 are standard amino acids, which are connected in different sequences to form proteinaceous proteins that perform various physiological functions in living organisms.
Amino acids can be divided into the following categories according to their location and function in proteins
1.Essential amino acids
9 amino acids that the body cannot synthesize by itself or the synthesis speed cannot meet the needs, and must be ingest through food, including lysine, tryptophan, phenylalanine, methionine, threonine, isoleucine, leucine, valine and histidine (infants also need histidine).2.Non-essential amino acids
The human body can synthesize by itself and does not need to obtain directly from food, including glutamic acid, aspartate, alanine, serine, glycine, proline, cysteine, etc.3.Conditional essential amino acids
Under specific conditions (such as disease, stress), the human body's synthetic ability is reduced, and additional supplements are needed, such as arginine, glutamine, etc.Amino acids are also widely used in the field of skin care, as skin care ingredients, they mainly have the following effects
1.Moisturizing
Some amino acids such as glycine, alanine, etc. have good hygroscopic properties, which can help the skin retain moisture and enhance its moisturizing ability.2.Repair
Such as arginine, glutamic acid, etc. participate in the repair and regeneration process of skin cells, promoting wound healing.3.Anti-aging
Certain amino acids have antioxidant effects that can help fight free radical damage and slow down skin aging.4.Cleansing
Amino acid surfactants, such as sodium lauryl sarcosine, are commonly used in cleansing products for sensitive skin due to their mild, non-irritating properties.Therefore, amino acids are not only essential for human health, but also play an important role in beauty and skin care products.
Amino Acids,Taurine,L-Tyrosine, Food additives
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