31 results about "Veratryl alcohol" patented technology

The invention discloses a method for degrading bisphenol A through a white-rot fungus crude enzyme. The white-rot fungi crude enzyme is prepared, a tartaric acid buffer solution, a bisphenol A solution, a hydrogen peroxide solution and veratryl alcohol are added, the pH value of a reaction system is controlled to range from 2.5 to 3, the concentration of the veratryl alcohol is 10 mmol / L, the temperature is kept between 20 DEG C and 50 DEG C, the reaction lasts for 30 minutes to 50 minutes, 1.0 mL-3.0 mL methyl alcohol is added for stopping the reaction, and therefore the bisphenol A is degraded through the white-rot fungi crude enzyme. A bio-enzyme catalytic process is adopted in the method, and the method has the beneficial effects of being high in removing efficiency, convenient, safe, free of pollution and the like; and as amboceptor matter is added, the biocatalysis reaction efficiency can be improved, the reaction time can be shortened, the enzyme using amount is reduced, and the running cost is reduced.

The invention discloses a brewing method of distilled wine in the food domain, which adds trans-chenopodium veratryl alcohol in the allocated wine.

The present invention relates to a fragrance composition that has a vanilla odor property, that is chemically stable and that can be blended in a variety of products, which can be an alternative material for vanillin or ethyl vanillin. The fragrance composition of the present invention comprises: A) one or more selected from the group consisting of vanillyl alcohol, ethylvanillyl alcohol, isovanillyl alcohol and veratryl alcohol; and B) one or more selected from the group consisting of 2-ethoxy-4-methylphenol, 2-methoxy-4-methylphenol, 2-ethoxy-5-methylphenol, 2-ethoxy-4-ethylphenol, 2-ethoxy-5-ethylphenol, 2-methoxy-p-cresol methyl carbonate and 2-ethoxy-5-(1-propenyl)-phenol, wherein the total content of component A and component B in the fragrance composition is 0.01-90% by mass, and the mixing ratio of component A and component B (on a mass basis) is in a range of 99:1-70:30.

The present invention relates to an improved zeolite based catalytic process for the preparation of acylated aromatic ethers and more particularly, the invention relates to catalysed acylation of anisole (methoxybenzene) and veratrole (1,2-dimethoxybenzene) for the preparation of acylated aromatic ether, namely, p-methoxyacetophenone and 3,4-dimethoxyacetophenone respectively using microporous alumino-silicates solids like zeolites.

The invention relates to the technical field of pesticide degradation and particularly relates to a method for improving the laccase activity for organophosphorus pesticide degradation. The method comprises the following steps: (1) activating a culture; (2) culturing a seed solution; (3) performing fermentation enzyme-production culture; and (4) preparing a crude enzyme solution. According to a fermentation culture medium, maltodextrin is used as a carbon source, corn protein and peptone are used as a complex nitrogen source, and substances capable of promoting laccase synthesis and secretionof trametes cinnabarina, such as tyrosine, salicylic acid, diethylaminoethyl hexanoate, catechin, veratryl alcohol, a fullerene aqueous solution, spermidine and tween-80, are added into the culture medium, feed-batch and pH regulation are performed in the fermenting process, and an optimized production process for producing laccase by trametes cinnabarina liquid fermentation is established, so that the aims of improving the activity and yield of laccase and reducing the production cost of laccase can be achieved, and foundation is laid for industrial production of laccase and application in the field of pesticide degradation in the future.

The invention relates to the technical field of biology, in particular to a method for degradation of non-phenolic lignin. Degradation efficiency of manganese peroxidase is improved by adding organic acid as an interbody during degradation of the non-phenolic lignin. Experimental results show that a non-phenolic lignin compound such as veratryl alcohol can be effectively degraded by addition of malonic acid and oxalic acid. The method is simple in operation, low in cost investment, wide in application, free of pollution, obvious in degradation efficiency of the non-phenolic lignin and widely applicable to the fields of pretreatment of lignocellulosic biomass and degradation of xenobiotics.

The invention belongs to the technical field of cosmetics, and discloses nourishing and moisturizing essence. The nourishing and moisturizing essence is prepared from a group A preparation, a group B preparation, a group C preparation, a group D preparation, a group E preparation, a group F preparation and a group G preparation, wherein the group A preparation contains water and a hydroxyethyl cellulose composition, the group B preparation contains water, allantoin, panthenol, glycerol, butanediol, glyceryl polyether-26 and a glycerol composition, the group C preparation contains water and sodium hyaluronate, the group D preparation contains nicotinamide, 3-o-ethyl ascorbic acid, a sodium polyglutamate composition, a Japanese lily extract composition, a hamamelis virginiana water composition and PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin, the group E preparation contains 1,2-pentanediol, the group F preparation contains water and carbomer, and the group G preparation contains tetrahydroxypropyl ethylenediamine. With adoption of veratryl alcohol and ferulic acid, the composition has quite strong antioxidant capacity, the antioxidant capacity can be multipliedby cooperation with ferulic acid, the antioxidant capacity is higher than that of VE and VC, the composition has the effects of promoting self-repairing of skin barriers, improving rough and dark skin and efficiently absorbing free water molecules, a breathable film is formed on epidermis, moisture is locked, and percutaneous water loss is prevented.

The invention discloses a method for catalytically converting veratryl alcohol into veratraldehyde, and belongs to the technical field of converting the veratryl alcohol into the veratraldehyde. The method is characterized in that the veratryl alcohol is treated under the condition that a reduction salen-porphyrin complex exists; oxygen and water in certain pressure can be added while the veratryl alcohol is treated according to a technology of catalytically converting the veratryl alcohol into the veratraldehyde, and the treatment temperature, the treatment pH (Potential of Hydrogen) and the treatment time can be controlled. According to the method for catalytically converting the veratryl alcohol into the veratraldehyde, disclosed by the invention, a green catalytic oxidation technology is adopted, the veratryl alcohol is exclusively converted into the veratraldehyde, and the conversion rate of the veratryl alcohol is remarkably increased.

The invention discloses a culture medium for fermenting panus rudis to produce laccase and a laccase production method. A culture medium formula comprises 10.04g / L of soluble starch, 0.2g / L of peptone, 0.50g / L of K2HPO4, 0.50g / L of KH2PO4, 0.01g / L of ZnSO4.7H2O, 0.5g / L of MgSO4.7H2O, 0.01g / L of CuSO4.7H2O, 0.005g / L of FeSO4.7H2O, 0.05g / L of MnSO4, 0.08g / L of CaCl2, 0.1g / L of VB1, 0.4% of tween-40, and 0.05g / L of veratryl alcohol; the initial pH value of the culture medium is 6.8. A fermentation seed solution is inoculated in the culture medium so as to culture and produce the laccase at the temperature of 31 DEG C and the rotating speed of 160r / min. The culture medium for fermenting the panus rudis to produce the laccase, provided by the invention, has the advantages of high laccase productivity, high laccase activity and the like; the culture method is short in period and mild in conditions.

The invention discloses a lignin biological resource utilization method. According to the method, lignin can serve as a fermentation auxiliary substrate, continuous high-density culture is implemented, and the lignin can be degraded into substances such as acetic acid, vanillin, guaiacol, veratryl alcohol and phenolic compounds by fungal complex floras. The lignin can be applied to the fungal complex floras and mass efficient production of active substances of the fungal complex floras. Culture conditions and culture medium components of the fungal complex floras are optimized, the biodegradation rate and the conversion efficiency of the lignin are improved, so that the degradation rate of the lignin is not lower than 40%, and the concentration of a degradation product is 10-100mg / L. An efficient resource utilization method is provided for degradation and conversion of the lignin.

The invention belongs to the wine brewing technology field of wild fruits and rice and relates to a fruity rice original pulp wine and a brewing method thereof, the wine takes wild strawberries, wild grapes and mountain spring as raw materials, saccharifying liquid koji and alcohol yeast are added, the wine is prepared by biological fermentation and brewing, and the components and the weight percentages thereof are as follows: 25 percent of wild strawberry fruit juice fermented liquor, 25 percent of wild grape fruit juice fermented liquor, 30 percent of rice, 20 percent of mountain spring, 3 percent of saccharifying liquid koji and 1.5 percent of alcohol yeast; when in production, fermentation and brewing process of the wine, the functional and the effective ingredients in the wild strawberries and the wild grapes are retained. The synthesis of carcinogenic nitrosamines can be prevented, and a veratryl alcohol compound is contained in the grape juice, thereby being capable of preventing the cancerous change of normal cells and having simple brewing method.

The present invention relates to an improved zeolite based catalytic process for the preparation of acylated aromatic ethers and more particularly, the invention relates to catalysed acylation of anisole (methoxybenzene) and veratrole (1,2-dimethoxybenzene) for the preparation of acylated aromatic ether, namely, p-methoxyacetophenone and 3,4 dimethoxyacetophenone respectively using microporous alumino-silicates solids like zeolites.

The present invention relates to a fragrance composition that has a vanilla odor property, that is chemically stable and that can be blended in a variety of products, which can be an alternative material for vanillin or ethyl vanillin. The fragrance composition of the present invention comprises: A) one or more selected from the group consisting of vanillyl alcohol, ethylvanillyl alcohol, isovanillyl alcohol and veratryl alcohol; and B) one or more selected from the group consisting of 2-ethoxy-4-methylphenol, 2-methoxy-4-methylphenol, 2-ethoxy-5-methylphenol, 2-ethoxy-4-ethylphenol, 2-ethoxy-5-ethylphenol, 2-methoxy-p-cresol methyl carbonate and 2-ethoxy-5-(1-propenyl)-phenol, wherein the total content of component A and component B in the fragrance composition is 0.01-90% by mass, and the mixing ratio of component A and component B (on a mass basis) is in a range of 99:1-70:30.