A sweet corn type
Sweet corn is divided into common sweet corn, super sweet corn and sweetened corn.
1, ordinary sweet corn
Features: The sugar content of grain is about 10%, which is 1 times higher than that of ordinary corn, and it is glutinous. The starch content is about 35%, which is half that of normal corn. At the same time, it also contains high protein, oil, and various vitamins. Its nutritive value is higher than that of ordinary corn and it is thin, sticky and fragrant. Grains dehydration and maturation appear transparent shrinkage state, it is easy to distinguish from ordinary corn.
Uses; used to process various types of sweet corn canned, can also be listed as green tender corn.
Disadvantages; not resistant to storage, should be sold or processed on the day of harvest, otherwise over time, sugar will be converted into starch, so that the peel becomes thicker and the sugar content decreases.
2, super sweet corn
Characteristics: The sugar content can reach 20%, the sweetness is rich, and the starch content is reduced to 18-20%. It has the outstanding characteristics of sweetness, brittleness, and fragrantness, but it has no stickiness. After mature dry, it shows a depression-like shape. Grain weight is only 1/3 of normal corn and it is easy to identify.
Uses; currently marketed primarily as tender corn and used to process quick-frozen corn, which is generally used for processing canned foods.
3, strengthen sweet corn
It is a new type that combines the advantages of common sweet corn and super-sweet corn. Therefore, it is widely used to strengthen sweet corn. It can process various types of sweet corn canned foods, and can also be used for food or quick-frozen processing of green and tender corn, and has broad development prospects.
Second, the research progress of sweet corn
In the West, sweet corn has already entered the family as a popular vegetable, and China's sweet corn breeding started in the early 1950s. In the 1960s, Beijing Agricultural University first fortified a sweet corn variety named “Beijing Baisha Sugarâ€. After being interrupted for many years, it was not until the late 1970s that various research institutes began to re-initiate, and they developed the hybrid Maonong 1 and Dongtian No. 2 common corn and the sweet jade No. 2 supersweet corn hybrid. In recent years, new varieties such as Huatian No.01, Sweet List No.1, Tianyu No.4, No.6 and Huangtiandan No.104 have been introduced.
Third, the nutritional value of sweet corn and development and utilization
Sweet corn has high nutritional value. The content of oil, protein and lysine in the grains is higher than that of ordinary corn, and it is rich in vitamins B1, B2, and Vc. Sweet corn has a strong sweet taste and good palatability. It is a favorite food for people.
In addition, the economic benefits of sweet corn are high. Generally, 5000-7000 kilograms of fresh ear are produced per mu, and the economic benefit is about 4 times that of ordinary corn. Therefore, it is a type of corn that is well worth developing and utilizing.
Four, sweet corn cultivation techniques
Isolation planting
When sweet corn and normal corn are crossed, the contemporary grain becomes normal corn, so it must be isolated. Different types of sweet corn also need to be isolated. The isolation distance is more than 400 meters. If there are natural barriers such as woods and hills, the distance can be shortened. In addition, time intervals can also be used, with a difference of about one month for the sowing date, avoiding the flowering period and crossing.
2, for full seedlings
Since sweet corn (especially super-sweet corn) has low starch content in the grains and young shoots have weaker top soil, it is very important to cultivate whole corn for the planting of sweet corn. Foreign countries generally plant sweet corn as a vegetable. First, choose well, site preparation requires careful, suitable soil moisture, so that the soil is finely chopped, the virtual reality, sowing should not be too deep, about 5 cm is appropriate, and should pay attention to the control of seedling pests (control methods are the same as ordinary corn control ).
3, reasonable close planting
Generally sweet corn is sold as a commodity, so pay attention to the commodity characteristics of the ear, and you should not simply consider the yield. Since the spike of fruit is a graded acquisition, it is necessary to increase the product rate as much as possible, and the appropriate density should be determined according to the needs of the market and the economic benefits, so that as far as possible, there is higher income per unit area. The specific planting density is related to the variety characteristics, natural conditions, and the level of fertilizer and water management, which should be determined based on the results of the research department.
4, successive listing, increase efficiency
The time to market is closely related to economic benefits and has the characteristics of vegetables. If we can mention the morning market and catch up with the off-season supply market, the fresh sweet corn will get higher economic benefits. It can be used to plant early maturing varieties, transplanting seedlings, and mulching. In addition, measures such as mulching can also be performed on the premise of early maturing varieties. In order to prolong the time to market, the same species can be planted in stages so as to achieve successive listings and obtain greater economic benefits.
5, pest control
Because sweet corn has good palatability and rich nutrition, the harmful effects of corn borers and other pests are serious and affect the quality. Therefore, it is necessary to prevent and control pesticides in a timely manner. Pesticides should be used with caution, and biological control is the best method. Period of inoculation of Trichogramma eggs or control with biological agents. If you use pesticides, you must strictly control the amount of medication and the time of application to ensure the quality of sweet corn. In addition, some sweet corn varieties have tiller characteristics, and will be removed at the seedling stage. If the crops are not fed in time, consumption of nutrients will affect the growth of the main stem, which will inevitably reduce the yield or cause the ear to be too small.
Active Pharmaceutical Ingredients
Active Pharmaceutical Ingredients(API) refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients.
Chromium Picolinate,Tianeptine,6-Paradol,Aminobutyric acid,acetylcysteine,L-Carnosine
Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com