2018年5月4日星期五

Food additive does not have illegal additives, whether can "add"!

In recent years, with the constant occurrence of food safety incidents, many people point to food additives.

So what role did food additives play in these events?Do we all blame food additives for these food safety incidents?

First, we need to clarify a fact.For example, in related food safety incidents such as Sudan red, clenbuterol and melamine, these additives are not food additives.

They are not allowed to be used in food, so they are illegal additives and have nothing to do with food additives.

However, there are some food additives related to food safety.In summary, there are two main situations:

Case 1

Winter jujube is a kind of nutritious and popular fruit.Careful consumers found that some of the winter jujube skin is crisp, tender and juicy, sweet and sweet, while some of the dates are not sweet, the skin sweet is especially big, and the aftertaste is bitter.What's going on here?
After a professional investigation, it was found that some illegal merchants had soaked it with saccharine in order to increase the sweetness of the dates.

Case 2

A group of food poisoning incidents occurred in nanning county, and many people suffered from chest tightness and diarrhea after eating rice noodles produced by a rice noodle factory.According to the test samples, the regional center for disease control and other inspection institutions issued the inspection report.The report showed that the problem rice flour contains sodium pyrosulfite and sodium dehydroacetate.

Case 3
On July 28, 2016, the province food and drug administration issued "on the administration of state food and drug supervision and administration of announcement of announcement verification disposal of unqualified food, the shijiazhuang city some food company in the production of purple potato cake food additives, fine of $50000.
The notice shows that the dehydroacetic acid and its sodium salt index in the products produced by the food co., ltd. are not qualified, and the detection value is 0.64g/kg. The standard requirement is not more than 0.5g/kg.At the same time, the preservatives are too high.

Therefore, we must strengthen the use and management of food additive production, knowledge of the popular food additives, improve the quality of the food producers and traders, so as to avoid the food additives food safety related events, give full play to the positive role of food additives.

Lemandou Chemicals is experienced in exporting  over ten years.
Email: marketing@lemandou.com
Whatsapp&wechat: +86 18232265138

Main products:Fertilizer/Organic Fertilizer/Pesticide/Plant Growth Regulator /Water treatment/Food additives...

If you are finding suppliers in China, pls feel free to contact us. Good quality and competitive price will be provided to you. We can serve as your long-term supplier.

Biological pesticides have advantages over traditional pesticides.

Compared with chemical pesticides, biological pesticides have many essential differences, such as the source of their active ingredients, the way of industrial production, the mechanism of insecticide prevention and the way of action, etc.Biological pesticides are more suitable for expanding the proportion of application in the future comprehensive management strategy of harmful organisms.In general, biological pesticides have the following advantages.

Strong selectivity for human and animal safety.

At present the market development and success of biological pesticide products, a wide range of application they only has an effect on plant diseases and insect pests, generally is good for people, livestock, and various biological natural enemies (including animals, insects, aphids, bees, pollination insects and fish, shrimp and other aquatic life) is safe, there is less influence of non-target organisms.

It has little impact on the ecological environment.
Biological pesticides control the action of harmful organisms, mainly using the metabolites of some special microorganisms or microorganisms to kill insects, prevent diseases and promote health.Its effective active ingredients fully existence and comes from the natural ecosystem, the biggest characteristic of it is vulnerable to various soil microbes, plants, or sun, is a kind of from the nature, due to natural and normal way of material circulation.Therefore, it can be considered that they are safe and pollution-free to the natural ecological environment.

Pest infestation
Some biological pesticide varieties (micro spore entomopathogenic fungi, insects, viruses, insects, insect, entomopathogenic nematodes, etc.), with a horizontal or vertical transmission by the eggs in the pest population capacity, under certain conditions in the field, has the ability of colonization, spread and development of popular.It can not only exert control over the harmful organisms of the present day, but also play a certain inhibitory effect on the offspring or the harmful biological population of the next year.

It can be produced and processed by agricultural and sideline products.
The current domestic production and processing of biological pesticide, generally the main use of natural renewable resources, such as agricultural and sideline products of corn, bean cake, fish meal, wheat bran, certain plants, etc.), the source of raw materials is very extensive, the production cost is low.Therefore, the production of biological pesticides generally does not produce and use non-renewable resources (such as oil, coal, natural gas, etc.) to produce chemical synthetic products to compete for raw materials.

How to fertilize peanuts for high yield?The main point of peanut fertilization.

For peanut cultivation, scientific fertilization is the key to increasing the production of peanuts. How can the peanut be fertilized to promote high yield?Here are some tips on how to fertilize peanuts.
How to fertilize peanuts for high yield?
Peanut lacks nitrogen, which leads to the slow growth of nutrition, yellow leaves, small leaves, small pod, and lack of satiation: the lack of phosphorus, the lack of the root of peanut, the lack of root nodules, the decline of nitrogen fixation ability, and the lateness of the green.Potassium deficiency, yellow-green leaves, withered at the top of the plant;Lack of sulfur can reduce the protein content of nuts.Lack of magnesium, chlorophyll can not form normally, severe leaf whitening, leaf veins lose green;Reduce the number of nodules and branches in the absence of aluminum and cause chlorophyll ageing;Boron deficient, main stem and lateral branches short, plant short and clumpy, serious growth point dead.
In order to give full play to the effect of fertilizing technology on peanut production, the fertilization measures should be adapted to local conditions.
One is to pay attention to peanut fertilization.Before the formation of rhizobium, the nutrition of the seed was maintained.The second is to absorb nutrients from the soil.Lack of fat is difficult to develop and inhibit the growth of middle and late stage.
The second is to fertilize the soil.The practice shows that the lower the soil fertility, the greater the increase of fertilizer increase.Secondary fertility;Fertile soil, the effect is not obvious.Therefore, peanut fertilization should be fertilized in soil with poor fertility.
The main point of peanut fertilization.
The third is to mix and fertilize.The peanut of each mu can be mixed with 0.2kg peanut rhizobium, mixed with 2.5 to 10 g molybdenum acid;Each kilogram of seeds can be mixed with 0.4 to 1 gram of boric acid;The peanut kernel can be moistened with rice soup first, and then the seeds of each acre are mixed with gypsum from 1.0 to 1.5kg, which can be used to supplement fertilizer in time to promote the growth of peanut seedlings.Local practical application can be combined.
The fourth is to fertilize the seedlings.According to the study, the ratio of peanut to nitrogen, phosphorus and potash fertilizer was 1.0:0.18:0.48.The seedling stage needs less fertilizer;The amount of fertilizer required for flowering is about 25% : 50% to 60% of the total amount of fertilizer in the pod period.For this, the application of fertilizer, one is pushi foundation fertilizer.About 1500 kg of organic manure per mu, 15 to 20 kg of phosphate fertilizer, and 5 kg of urea in the soil with poor fertility.The second is that before the beginning of the flower, the organic fertilizer of each mu is 500 to 1000 kg, the urea 4 to 5 kg, the superphosphate 10 kg, and the combination of the soil and the soil;The three is the initial flowering period of each mu of the active liquid fertilizer 150 ml of the active liquid fertilizer 50 kilograms of water spraying, to promote the branch to increase the pod number, to improve the satiation rate has a significant effect;The fourth is the pod period, which can be sprayed from 0.2% to 0.3% of potassium dihydrogen phosphate and 1% urea solution, which can receive the effect of supplementing phosphorus and nitrogen.
These are the key points for the fertilization of some peanuts, and the friends who grow peanuts can use the above method of fertilization according to the actual planting conditions.




Lemandou Chemicals is experienced in exporting  over ten years.
Email: marketing@lemandou.com
Whatsapp&wechat: +86 18232265138

Main products:Fertilizer/Organic Fertilizer/Pesticide/Plant Growth Regulator /Water treatment/Food additives...

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What are the benefits of removing the old leaf from the tomato?

1.The improvement of photosynthetic power, whether it is a greenhouse or a cultivated tomato, is beneficial to the ventilation and light of the plant, and can greatly improve the photosynthetic power of the aged leaves.
2.Cutting nutrients and eating tomatoes leaves the leaves in 15 to 50 days of age to work together with the strongest, and can produce a lot of nutrition for the growth and development of the plants.Leaf age exceeds 60 days, the nutrition that consumes more than the nutrition that make, old leaf is helpful for plant growth.
3.The growth of the old leaves of the affected tomato was long, and the chances of infection and eggs were also increased.Removing old leaves from the future can reduce the source of pests and diseases, and then reduce the incidence and damage of diseases and pests.
The above three points are the advantages of the removal of tomato leaves.In the middle and later stages of tomato growth, it will be better to remove the old leaves in time.


Lemandou Chemicals is experienced in exporting  over ten years.
Email: marketing@lemandou.com
Whatsapp&wechat: +86 18232265138

Main products:Fertilizer/Organic Fertilizer/Pesticide/Plant Growth Regulator /Water treatment/Food additives...

If you are finding suppliers in China, pls feel free to contact us. Good quality and competitive price will be provided to you. We can serve as your long-term supplier.

How to fertilize litchi scientifically?Technique of fertilizing litchi.

Litchi needs a certain amount of fertilizer to ensure the normal growth of litchi, and if it is not scientific, it is very likely that the production of litchi will be reduced or even closed.How to fertilize the lychee?The following is to introduce the fertilizer technology of litchi.
How to fertilize litchi scientifically?
The principle of litchi fertilization.
(1) lychee should pay attention to the application of organic fertilizer, fertilize it according to the growth period, reasonably match the nitrogen and phosphorus and potassium fertilizer, and adjust the fertilization plan according to the factors such as litchi variety, growth potential and climate.
(2) the soil acidity is stronger, and lime and calcium magnesium phosphate are applied to adjust the soil ph and the corresponding nutrients.
(3) appropriate fertilization method was adopted to apply micro element fertilizer in targeted application.
(4) the seedling period of litchi fruit is during the rainy season, and nitrogen fertilizer is used as much as possible to avoid urea or nitrate fertilizer.
(5) combination of fertilization and other management measures, such as drip irrigation and fertilization, fertilizer solution, etc.
Technique of fertilizing litchi.
Lychee results flowering tree.
Each strain (about 50kg) should be applied to 10 to 20 kg of organic fertilizer, 0.75-1.0kg of nitrogen fertilizer, 0.25-0.3 kg of phosphate fertilizer, 0.8-1.1kg of potash fertilizer, 0.25%-0.35kg of calcium fertilizer, 0.07-0.09 kg of magnesium fertilizer.There were no trees or fruit trees in the early years: 5 to 10 kg of organic fertilizer per plant, 0.4 to 0.6 kg of nitrogen fertilizer, 0.1-0.15 kg of phosphate fertilizer, 0.3-0.5 kg of potash fertilizer and 0.05 kg of magnesium fertilizer.
The fertilizer was used for 6 to 8 times after harvest (one tip and one fat), flowers before flowers, xie hua and fruit.According to the growth potential of litchi tree, it can be combined with the flower before and before the flower, or the combination of xie hua fei and zhuang guo fertilizer will be applied.Nitrogen in the four stages of the proportion is 45%, 45%, 20% and 35%, p in postharvest once into or points postharvest and spend the first two, potassium, calcium magnesium fertilizer fertilizer proportion is 30%, 10%, 20% and 10%.Florescence can be sprayed with potassium dihydrogen phosphate solution.
Orchards without boron and molybdenum, spraying 0.2% of borax before flowers, flowers and fruits expanded, plus 0.05% ammonium molybdate;Zinc sulfate or compound trace elements of 0.2% were sprayed at the end of litchi.In the orchard of pH5.0, 100 kg of lime was applied to each mu.
The above is the introduction of some lychee fertilization techniques, the fruit farmers who grow litchi, can refer to the techniques of fertilization, combine the actual planting situation, and properly fertilize.

Lemandou Chemicals is experienced in exporting  over ten years.
Email: marketing@lemandou.com
Whatsapp&wechat: +86 18232265138

Main products:Fertilizer/Organic Fertilizer/Pesticide/Plant Growth Regulator /Water treatment/Food additives...


If you are finding suppliers in China, pls feel free to contact us. Good quality and competitive price will be provided to you. We can serve as your long-term supplier.

2018年4月28日星期六

The diversity of water treatment agents.

Water treatment agent is a kind of water treatment chemicals used in the general, common water treatment agents are: flocculating agent, seven water ferrous sulfate, polymerization ferric salt, calcium hydroxide, ferric chloride hexahydrate, stannic chloride pentahydrate algae fungicidal, chlorine dioxide, scale inhibitor, polyacrylamide (cationic, anionic and non-ionic), polyaluminium chloride, polyaluminium chloride iron, ferrous sulfate, etc.
Corrosion inhibitor
Inhibitor class in the form of the appropriate concentration and additive in the water, can prevent or slow water chemicals of corrosion on the metal material or equipment, has a good effect, less consumption, convenient use, etc.
The types and varieties of corrosion inhibitors can be divided into inorganic inhibitors and organic inhibitors according to the types of their compounds.According to their inhibitory reaction, anodic reaction, cathodic reaction or both, can be divided into anode corrosion inhibitor, cathodic inhibitor or mixed corrosion inhibitor.The corrosion inhibitor can be divided into passivation film type, precipitation film type and adsorption film type according to the mechanism of forming protective film on metal surface.At present, the passivated film corrosion inhibitors, such as chromate, nitrite and molybdate, are commonly used in water treatment.The commonly used precipitation film corrosion inhibitors have polymerized phosphate, zinc salt, etc.Commonly used adsorption film type corrosion inhibitors such as organic amine and so on.
Scale inhibitors
The scale inhibitor, also known as scale inhibitor, refers to a class of chemicals that can inhibit the formation of scale and scale of calcium and magnesium in water.There are natural scale inhibitors such as tannin and lignin derivatives;Inorganic scale inhibitors such as sodium hexametaphosphate, sodium tripolyphosphate, etc.Organic and macromolecule scale inhibitor, which has the best effect of polymer scale inhibitor, has a promising future.There are two types of organic and macromolecular scale inhibitors used in water treatment: organic phosphonic acids such as EDTMP (ethylenediamine tetramethylphosphonic acid), HEDP (hydroxyl diphosphonic acid), etc.Polycarboxylic acid, such as polyacrylate, hydrolyzed polymaleic anhydride, etc.The scale inhibition of these two kinds of scale inhibitors is usually achieved through lattice distortion and dispersion - condensation, which is widely used in oilfield water, boiler water and industrial cooling water.
fungicide
Fungicides are also known as bactericidal agents or sludge removers, anti-sludge agents, etc., which are used to inhibit the growth of microorganisms such as algae in the water, so as to prevent the formation of microbial mucous chemicals.It is usually divided into oxidizing fungicides and non-oxidizing fungicides.Oxidizing fungicides, such as commonly used chlorine, sodium hypochlorite, bleaching powder, etc.Non-oxidizing fungicides are effective and widely used to destroy bacterial cell walls and cytoplasmic chemicals such as quaternary ammonium salts.Quaternary ammonium salt in such as chlorinated dodecyl dimethyl benzyl ammonium bromide or dodecyl dimethyl benzyl ammonium, etc., often with a variety of action such as sterilization, stripping, corrosion, promising, has been applied in oil field water, industrial cooling water, etc.
Cleaning agent
A special cleaning agent used in oil field water treatment chemicals, can eliminate the mechanical impurity and oil in the oily wastewater, its role in addition to the above-mentioned flocculant separation of suspended solids or mechanical impurities, also has the oil-water separation purification effect.Therefore, in addition to the general flocculant ingredients such as aluminum salt and polyacrylamide, this kind of purifying agent often contains some surfactant.For the purification effect of the purifying agent, the membrane filter is generally used to determine the purification effect of filter film factor (see filter).
cleaner
The cleaning agent is a kind of chemical with cleaning effect.In the process of water treatment, some chemicals are often used to clean the surface sediments of the metal equipment, such as corrosion products and scale, and microbial slime.According to different cleaning requirements, the cleaning agent can be divided into acid lotion such as hydrochloric acid, sulfuric acid, hydrofluoric acid, citric acid, etc.Passivating agents such as sodium benzoate.Currently, the use of sodium sulfonated succinate is a surfactant, which is used as a special cleaning agent to clean the oil and rust of the metal surface.
Thus, water treatment agents are very diverse products!

Are food additives harmful to health?

Have a strict management system for food additives in our country, approved the use of food additives are through the strict safety evaluation, food additives in China also established a perfect evaluation mechanism again, at any time according to the latest research progress of adjusting its breed or use scope and usage."As long as there is no harm to human health as long as the use range and usage are in compliance with the national standards, no food safety accident has been found to be legally used in food additives.""Said li chunyu.
Is food safe without food additives?
Modern food industry cannot leave food additive, reasonable use can improve food safety guarantee.For example, soy sauce without preservatives will become moldy, and there will be no antioxidants in the edible oil, but the health risks of fungal toxins and fats and oils are far greater than the preservatives themselves.Consumers need to be rational about foods that claim "no preservatives".Some foods don't need preservatives, such as high-sugar, high-salt diets, which can also pose health risks.

Weeding effect of acetochlor.

As herbicides acetochlor has been widely used, selective bud before processing, mainly through monocotyledonous coleoptile or dicotyledonous plants absorb, the hypocotyl of absorbed upward transmission, mainly by blocking the protein synthesis and inhibiting cell growth, make the weeds plumule and radicle growth to stop, and then died.Gramineous weeds are better than broad-leaved weeds, so they are better than broad-leaf weeds.In the soil, acetochylamine has an effective period of about 45 days, mainly through microbial degradation, with small mobility in the soil, mainly in the 0-3cm soil layer.
Acetochlor reagent can be applied, beans, peanuts, corn, cotton, potato, rapeseed, garlic, tobacco, sunflower, castor, leeks and other crops, herbicide, annual gramineous weeds and some small seeds of broadleaf weeds.Of digitaria, green bristlegrass, eleusine indica, weed, thousands of gold, the mai niang, wild oats, Kentucky bluegrass, grass, teff annual gramineous weeds have special effects, such as the chenopodiaceae, amaranthaceae, polygonaceae, duck plantar grass, cattle, chickweed, 莬 silk son broadleaf weeds also to have certain control effect, but the effect than gramineous weeds is poor, the perennial weeds is invalid.
It is very active and should be used according to the instructions when applied, and the dosage should not be increased at will.

A contest of fertilizer and fertilizer!

Fertilizer:
1, fertilizer containing no organic matter, humus, so heavy use of chemical fertilizers, soil due to the lack of organic matter and humus, the soil granular structure destroyed, soil harden and farmers plant production.
2, low utilization rate of fertilizer, nitrogen fertilizer because of volatile, erosion, utilization rate is only 30% 50%, the utilization rate of phosphate was 10% 25%, because of the phosphoric acid chemical activity of root and lively, plowing soil after most of the phosphorus with Zn2 + from the soil, magnesium 2 +, Ca2 +, Fe3 +, Al3 + cations form difficult soluble phosphate fertilizer, etc.Potassium is only about 50% utilization.
3. Heavy use of fertilizers has greatly reduced the quality of fruits and vegetables.Because the crops not only need NPK, at the same time also need many trace elements such as zinc, selenium, calcium iron and fertilizer general component is single, so long-term use of chemical fertilizer will lead to soil nutrients contained in a single, easy to make crop nutrition disorders, resulting in crop synthetic internal transformation, inevitably led to the decrease of the quality of crops, the melon is not sweet, food is not sweet.
4. Harmful to human health.A large amount of chemical fertilizer is used to make the nitrate content in vegetables exceed the limit, and the combination of nitrite and amine compounds to form N- nitrite base compound is a strong carcinogen.
5. The abundant use of chemical fertilizer also causes the beneficial bacteria of soil and the mass death of earthworms.
6. Long-term inefficient use of fertilizers often results in excessive accumulation of certain elements in the soil and changes in soil physical and chemical properties and environmental pollution.
The more you use chemical fertilizer, the more you use it, the more you rely on it, the more you rely on it.
Advantages of biological fertilizer:
1. Improved soil
(1) through the proliferation of beneficial bacteria, a large number of beneficial bacteria have formed an advantageous population around the roots of plants, which inhibits the life activities of other harmful bacteria.
(2) the rapid decomposition of soil organic matter, promote the formation of soil aggregate, and through the beneficial bacteria activity can loose soil, soil to protecting fertilizer, fertilizer, water, water supply and air permeability are well adjusted.
(3) to decompose pesticide residues in soil to avoid pesticide residues in the next season.The plant growth process is also decomposed by harmful substances emitted from the root system.
2. Nitrogen fixation, phosphorus removal and potassium removal.
Part to be able to use the nitrogen in the air, through the beneficial bacteria growth metabolism enzyme and acid, can be difficult soluble phosphate, potash fertilizer in the soil, the soil difficult soluble phosphate 95%, difficult soluble potassium 98%) decomposition, becoming the plants can absorb under phosphorus.Therefore, the utilization rate of fertilizer can be greatly improved, thus reducing the application of fertilizer.'
3. Improve crop quality.
Phosphate-solubilizing, releasing, at the same time, leads to the release of trace elements in the soil, is used by the crop, at the same time beneficial bacteria metabolism substance required to produce a variety of plants, small molecules such as amino acids, growth stimulating substances, vitamins, etc.
4. To achieve the effect of biological control, the irrigation can inhibit the bacteria in soil and spray onto the leaf surface to prevent the invasion of diseases.
5. Promote precocity and prolongation of crops.Due to the improvement of soil physical and chemical properties, soil nutrient is rich and balanced, the fertilizer in soil can be better absorbed by the crops, so it can promote the early maturity of crops and extend the harvest time.
6, and organic fertilizer, to continuously improve soil, 2 to 3 years to make a soil can reach the standard in the production of organic crops, and because of the beneficial bacteria can quickly decompose organic matter for crop absorption, so overcome the characteristics of applied organic fertilizer, slow, low single organic fertilizer production.

How to improve the survival rate of plantains?

Six measures should be taken for planting technology:
One is to choose a good seedling, should strictly choose 4 ~ 5 piece of leaf, 60 cm thick strong seedlings, the seedlings even after 30 days after planting ~ 40 days of dry weather, still can keep the survival rate of more than 70%;
The second is to choose the rainy day planting, not only the temperature is low, the humidity is large, but also can avoid the strong light burn and the rotten seedling;
Third, the foot base fertilizer, each point of the application of the organic fertilizer 50 kilograms and superphosphate 100 grams ~ 150 grams;
Four is the day to dig the seedlings of the day, and before planting the leaves, reduce water evaporation, to keep the seedlings flourishing;
Five is to spray the water, and use straw to cover the plantain seedlings and the surrounding topsoil, so as to avoid direct sunlight, reduce soil temperature, and maintain soil moisture;
Six is to strengthen the early management, often wet the water wet, timely control the disease and insect pests, the discovery of dry and decaying leaves immediately removed.In this case, it is too early to fertilize the plant and then fertilize it after the new root is grown, so as to promote the healthy growth of the plant.