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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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1.Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-02.Product AdvantagesIn the production of PVC plastic film in the process of often appear some like 'fish-eye' things, the so-called 'fish-eye' in fact is the PVC plastic in the plasticization process fails to plasticize the look similar to the fish's eyes of the spots or transparent hard particles, PVC anti-fish-eye agent TBHQ is to solve this problem!3.Cooperative enterprisesWith the unique and excellent synthesis process, high quality and high purity products, Shandong BEST Food Techn
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P-Hydroquinone, known as hydroquinone or hydroquinone in Chinese, is an important organic compound with the chemical formula C6H6O2 and a white crystalline form. This compound has a wide range of applications in the chemical industry, the pharmaceutical field, and the photographic industry. In terms of uses, P-Hydroquinone is mainly used in the production of black and white developers, anthraquinone dyes, azo dyes and so on. In the rubber industry, it is often used as an antioxidant, which helps to extend the service life of rubber products.
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Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-0Product AdvantagesNowadays, as the synthesis cost continues to decrease, the application scope is gradually expanded to petrochemical industry, feed industry, electronic industry, battery industry, etc..Academic research and developmentTertiary butylhydroquinone is a chemically synthesized antioxidant, due to its antioxidant effect, is widely used in the food industry, feed industry, petrochemical industry, paint industry, electronics industry, cosmetics industry, etc., the application prospect is very broad
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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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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.
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T-butylhydroquinone, abbreviated as TBHQ, has a molecular formula of Cl0H1402 and a molecular weight of 166.22. [1] It is a white to light gray crystalline or crystalline powder with a very slight special odor. It is soluble in ethanol, acetic acid, ethyl ester, isopropanol, ether, and oils, and is almost insoluble in water (25 ℃,<1%; 95 ℃, 5%). TBHQ is an oil soluble antioxidant that can prevent or delay the oxidation and deterioration of fats in food.
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TBHQ may volatilize faster than BHT. Therefore, the application of microcapsule technology can solve this problem under high temperature conditions. Using natural antioxidant tea polyphenols, BHA, BHT, and synergistic agent citric acid as the core material, and food grade natural substance p-cyclodextrin as the wall material, microcapsule antioxidant was prepared using microcapsule technology.Water soluble antioxidants are soluble in water and mainly used for food oxidation and discoloration.
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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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It is a white to light gray crystalline or crystalline powder with a very slight special odor. It is soluble in ethanol, acetic acid, ethyl ester, isopropanol, ether, and oils, and is almost insoluble in water (25 ℃,<1%; 95 ℃, 5%). TBHQ is an oil soluble antioxidant that can prevent or delay the oxidation and deterioration of fats in food.
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White or off-white crystalline powder; moderate smell, non-toxic; most important issue content ≥98.5%; relative density 1.09; melting point 212-218℃; solubility (g/100g solvent, 25℃): ethanol 35.1, acetone 39.0, ethyl acetate forty eight.eight, benzene 1.5, insoluble in fuel, insoluble in water; colorless, non-polluting, smooth to disperse, and so forth. Characteristicsf DTBHQ:Chemical call: 2,five-di-tert-butylhydroquinone (2,5-di-tert-butylhydroquinone)Abbreviation: DTBHQEnglish name: 2,five-di-tert-butylhydroquinone (DTBHQ)Molecular formula: C14H22O2Molecular weight: 222.33Type
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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.TBHQ, also known as tert butyl hydroquinone, is a phenolic oil soluble antioxidant. TBHQ has high efficiency and stability, which can extend the shelf life of foods rich in oil and improve food safety.
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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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According to the hygiene standard GB2760 (0.4007) for the use of food additives in the People's Republic of China, TBHQ can be used for edible oils, fried foods, dried fish products, biscuits, instant noodles, instant boiled rice, canned dried fruits, pickled meat products, roasted and fried nut foods (supplemented in February 2007), etc. The maximum usage is 0.2g/kg. It is generally recommended to use 0.01~0.02% of the total amount of oil.One dose is versatile and can effectively inhibit the growth of bacteria and molds.
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White or off-white crystalline powder; slight odor, non-toxic; main component content ≥98.5%; relative density 1.09; melting point 212-218℃; solubility (g/100g solvent, 25℃): ethanol 35.1, acetone 39.0, ethyl acetate 48.8, benzene 1.5, insoluble in gasoline, insoluble in water; colorless, non-polluting, easy to disperse, etc. Characteristicsf DTBHQ:Chemical name: 2,5-Di-tert-butylhydroquinone (2,5-di-tert-butylhydroquinone), abbreviation: DTBHQEnglish name: 2,5-Di-tert-butylhydroquinone (DTBHQ)Molecular formula: C14H22O2Molecular weight: 222.33Classification belongs to: Polyphenols CAS: 8
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1.Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-0The oil in oily food undergoes oxidation in the air, producing free radicals and peroxides, which are early indicators of food rancidity. Peroxides further decompose to form small organic compounds such as aldehydes, ketones, and acids, which directly affect the taste and flavor of the product and cause great harm to human health.
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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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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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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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At present, the most commonly used antioxidants for oils and their products are BHA, BHT, PG, TBHQ, and tocopherols. As for vegetable oils, their antioxidant capacity is in the order of TBHQ>PG>BHT>BHA. As for animal fats, the order of their antioxidant capacity is TBHQ>PG>BHA>BHT. For anhydrous milk fat, their antioxidant capacity is in the order of PG>TBHQ>BHA>tocopherols.
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The unsaturated resin polymerization inhibitor MTBHQ (2-tert-butylhydroquinone) plays an important role in resin synthesis and other synthetic reactions. The following is a detailed analysis of its principle of action and effects:Effect Remarkable polymerization inhibition effect: MTBHQ is a kind of high efficient polymerization inhibitor for unsaturated resin. Under normal storage conditions, the general addition amount is only two ten-thousandths of the total amount of resin, and it can play a good effect of polymerization inhibition.
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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.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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Product FeaturesThe antioxidant effect of this product is very ideal, 5~7 times stronger than BHA, BHT, PG. It is suitable for animal and vegetable fats and fat-rich foods, especially for vegetable oils, and is the preferred antioxidant for salad oil, blending oil and high cooking oil. It can effectively delay the oxidation of fats and oils, improve the stability of foods, and significantly extend the shelf life of fats and fat-rich foods.
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