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( 1)Stability in chemical reactionParylene is more effective in stabilizing the reaction process, but it discolors the resin.
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Polymerization inhibitors MTBHQ, as an efficient polymerization inhibitor, plays a crucial role in the chemical industry. It can effectively prevent or slow down the polymerization reaction, thus ensuring the quality and stability of polymer products. The mechanism of action of Polymerization Inhibitors MTBHQ lies in its ability to react with free radicals in the polymerization reaction, thereby interrupting the growth of the polymerization chain. Free radicals are key species in the polymerization reaction that initiate chain reactions leading to the growth of polymer molecular chains.
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The main cause of food deterioration during processing, transportation and storage is lipid oxidation, and the addition of antioxidants is the main means of delaying the oxidation of oil and fat products. Antioxidant is a free radical trapping agent, when it plays an antioxidant role, it can provide active hydrogen to combine with free radicals generated during oxidation of fats and oils, so that the free radicals are converted into stable compounds, blocking the free radical chain reaction, inhibiting lipid peroxidation, slowing down the oxidation of fats and oils and deterioration.
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At high temperatures, a series of complex chemical reactions such as oxidation, decomposition, polymerization, and hydrolysis are prone to occur, resulting in a rapid increase in the acid value, peroxide value, and carbon base value of roasted foods. In the later stage of storage and sales, unpleasant odors are easily produced. The use of TBHQ can effectively delay oil oxidation in pastry foods.Baked pastry foods require a higher temperature during the baking process, such as cakes and bread, which require a baking temperature of 160C~190C.
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Animal fats undergo a series of reactions such as the aggregation of fats, the production and transmission of free radicals, and so on at high temperatures. At the same time, animal fats lack natural antioxidants, so it is necessary to add effective antioxidants to maintain an appropriate shelf life. Chen Yongquan et al. measured the changes in peroxide value of samples added with different antioxidants in lard while studying the antioxidant properties of TBHQ.
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At high temperatures, a series of complex chemical reactions such as oxidation, decomposition, polymerization, and hydrolysis are prone to occur, resulting in a rapid increase in the acid value, peroxide value, and carbon base value of roasted foods. In the later stage of storage and sales, unpleasant odors are easily produced. The use of TBHQ can effectively delay oil oxidation in pastry foods.However, the oxidation and rancidity of fats and oils, as well as the production of unpleasant flavors, are a problem that troubles many pastry food producers.
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The seed method first completely dissolves TBHQ in a small amount of oil or 95% alcohol solution, and prepares 5-10% TBHQ oil or alcohol solution. Then, directly or with a measuring device, it is added to the fat or oil and stirred evenly.The pumping method injects the TBHQ concentrated solution prepared by the seed method into a pipeline with a fixed flow rate and flow rate of fat or oil that needs to be stable at a specified proportion through a stainless steel quantitative pump.
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Possible reaction pathways of 2,5-di-tert-butyl-hydroquinone (2,5-DTBHQ).Valgimigli et al. proposed a mechanism wherein semiquinone (2) reacts with molecular oxygen to produce 2,5-di-tert-butyl-1,4-benzoquinone (2,5-DTBBQ) and hydroperoxyl radical (HOO∙). The semiquinone (2) terminates a second propagation chain via either hydrogen abstraction (Reaction II) or addition reaction (Reaction IV) and these reaction pathways play a very critical role in the inhibition process.
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How to use the productDirect methodHeat the grease to 60~70°C, add TBHQ according to the required proportion amount, stir vigorously for 10~15 minutes to dissolve it then stir continuously (no need to stir vigorously to avoid excessive air entry) for about 20 minutes to ensure the TBHQ is evenly distributed.Seed methodFirst dissolve TBHQ in a small amount of oil (or 95% alcohol solution), formulated as 5% ~ 10% of TBHQ oil (or alcohol solution), then directly or by the dosage added to the fat or oil to go and then stir, so that TBHQ uniform distribution.CaveatTBHQ should be fully soluble and e
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When the oil contains a large amount of metal ions and oxygen, the addition of antioxidants can inhibit the formation of peroxides. When citric acid is combined with antioxidants, the higher the content of these impurities in the oil, the more obvious the synergistic effect. TBHQ has good oil solubility and thermal stability, and does not change in color after heating. It can be added before and after the deodorization process of oil.
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Using isobutylene as an alkylation reagent requires a reaction under closed conditions, which can also be catalyzed by strong acids. In a mixed solvent of xylene and ketone, 85% phosphoric acid is used as a catalyst [8], and isobutylene is added to synthesize tert butylhydroquinone. The selectivity of the single tert butylation reaction can reach over 90%. Cationic resin [9] can also serve as a catalyst for this reaction, but the effect is not very ideal.
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TBHQ or PG is also added to the baked oil to improve its stability before and during baking.Based on the actual production needs of pastries and the industry's call, our company applies to expand the scope of use of the food additive tert butylhydroquinone (TBHQ), with an application to expand the scope of use to "07.02 pastries".Therefore, appropriate selection of antioxidants can inhibit the rancidity of oily food production and prolong the storage life of the product. Shelf life is considered an effective way to prevent the product from deteriorating due to oxidation.
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The experimental results show that adding 002% TBHQ to oil can increase the antioxidant stability of the tested oil by 2-5 times, thus extending the shelf life of oil based foods compared to adding traditional antioxidants; And the antioxidant effect increases with the increase of the addition amount; The use of a small amount of synergist in combination with TBHQ can have a synergistic effect on antioxidant activity and enhance its antioxidant effect; The antioxidant effect of TBHQ on different oils is not entirely related to the iodine value, so further research on its application and develo
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1.Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-02.Product AdvantagesIn the feed industry, there is a widely used antioxidant for ethoxyquinoline, on December 23, 2022 by the European Union formally banned, then terbutylhydroquinone, when the feed industry can completely replace the market, the market application of the forefront of very optimistic.As an antioxidant, it must meet the following requirements as much as possible: no harm to the human body; There should be no bad taste, smell, or color; Low concentration can be applied; If added to oil, it i
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The seed method first completely dissolves TBHQ in a small amount of oil or 95% alcohol solution, and prepares 5-10% TBHQ oil or alcohol solution. Then, directly or with a measuring device, it is added to the fat or oil and stirred evenly.Fully dissolve and evenly disperse TBHQ in oil, otherwise it will affect the antioxidant effectSome organic acids and their derivatives can enhance the activity of TBHQ. It is better to mix it with 0010.02% citric acid.This product cannot be mixed with PG (Propyl Gallate) for use.
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The seed method first completely dissolves TBHQ in a small amount of oil or 95% alcohol solution, and prepares 5-10% TBHQ oil or alcohol solution. One dose is versatile and can effectively inhibit the growth of bacteria and molds. Within the scope of added applications, it can inhibit the growth of almost all bacteria and yeast, and has a good inhibitory effect on mold harmful to human health such as Aspergillus flavus.The antioxidant effect of this product is very ideal, 5-7 times stronger than BHA, BHT, and PG.
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Product ParametersTBHQ is white to light grey crystalline or crystalline powder, with very slight special smell, soluble in ethanol, acetic acid, ethyl alcohol, isopropyl alcohol, ethyl alcohol and oil, etc., a few are insoluble in water (25 ℃ <1%: 95 ℃ ﹤ 5%) TBHQ is a kind of oil-soluble antioxidant, which can prevent or prolong the oxidation of oil and fat deterioration in food.How to use the productSeed methodFirst dissolve TBHQ in a small amount of oil (or 95% alcohol solution), formulated as 5% ~ 10% of TBHQ oil (or alcohol solution), then directly or by the dosage added to the fat or
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Vegetable oil, animal fat, chewing gum, soup, seasoning, vitamins, grain food, nuts, essence, sausage, animal feed, grain food packaging, candy, instant potatoes, flavor substances, yeast, cosmetics, etcAs an antioxidant, it must meet the following requirements as much as possible: no harm to the human body; There should be no bad taste, smell, or color; Low concentration can be applied; If added to oil, it is fat soluble and can still maintain effective antioxidant capacity after processing; Need to be fast, effective, and cost-effectiveAntioxidants are substances that prevent or delay food o
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The benefits of Feed Oil Antioxidant TBHQ are obvious. Firstly, it improves the antioxidant stability of fats and oils, making them less susceptible to oxidation during storage and processing, thus extending the shelf life of food products. Secondly, the use of Feed Oil Antioxidant TBHQ also improves the taste and flavor of food products, allowing consumers to enjoy more delicious food.
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It plays an irreplaceable role in the production process of pastry food and is also an important source of energy for consumers. However, the oxidation and rancidity of fats and oils, as well as the production of unpleasant flavors, are a problem that troubles many pastry food producers. They not only cause changes in the appearance, taste, and odor of pastry food, but also affect the length of its shelf life. Adding food antioxidants is the most convenient, feasible, and effective method.Pastry is generally made from grains, oil, sugar, and/or sweeteners, eggs, milk, etc.
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In summary, pastry food undergoes complex production processes, greatly reducing the stability of oil and increasing the risk of product storage, sales, and circulation. However, the currently allowed antioxidants cannot meet the technical requirements for anti oxidation of all pastry food.
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Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-0Antioxidants are substances that prevent or delay oxidation of food, improve the stability of food and extend the storage period.Food antioxidants can be divided into oil-soluble antioxidants and water-soluble antioxidants according to their solubility properties.
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More than 20 countries have approved the use of TBHQ as a food antioxidant, including China, the United States, Australia, Brazil, etc. The US Food and Drug Administration (FDA) allows TBHQ to be used alone or in combination (with BHA or BHT) for oil or fatty foods, including volatile essential oils, with a maximum allowable dosage of 200PPM. It can also be used in non-alcoholic beverages, margarine, and mixed nuts.China allows TBHQ to be used as a food additive, with a maximum dosage of 0.2g/Kg.
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Especially in areas with high room temperature, such as some southern regions of China, the sourness and flavor of instant noodles have become a hot topic of concern for instant noodle production enterprises and consumers. Therefore, appropriate selection of antioxidants can inhibit the rancidity of oily food production and prolong the storage life of the product. Shelf life is considered an effective way to prevent the product from deteriorating due to oxidation.
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