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nipagin ethylester 尼泊金乙脂
Recent methods of Nipagin esters were reviewed in the paper. 对近年来尼泊金酯类催化合成方法进行评述。
Such as rose oil, red pepper colorant, high-purity dimeric acid,fish oil ethylester,and extraction of wheat-germ oil,etc. 如玫瑰油、辣椒红色素、高纯二聚酸、鱼油乙酯提纯和小麦胚芽油提取等,并对其在日化工业中的应用前景进行了论述。
It showed that this catalyst was reused and regenerated,and excellent one for the synthesis of Nipagin esters. 且该催化剂具有良好的重复使用和再生能力,非常适宜合成尼泊金酯。
Application of Nipagin complex ester as a preservative used in pickles was studied. 该文研究了尼泊金复合酯作为防腐剂在酱菜中的应用。
Compared with benzoic acid and sorbic acid,Nipagin has a good market and development prospects. 通过与苯甲酸和山梨酸比较,说明尼泊金酯具有良好的市场和发展前景。
Chapter 4.The synthesis of the water-soluble modified Nipagin ester series preservatives was investigated. 第四章研究了水溶性改性尼泊金酯系列（甲、丙）防腐剂的合成方法。
In this experiment, we use ascorbic acid and palmitate ethylester as reactant, H2SO4 as catalyst to synthesis L-ascorbic palmitate by ester exchange method. 以L-抗坏血酸和棕榈酸乙酯为原料、H2SO4为催化剂,酯交换法合成L-抗坏血酸棕榈酸酯。
Chapter 3.The preparationmethod of the Nipagin ester series preservatives was investigated. 第三章介绍了尼泊金酯系列（甲、乙、丙、丁）防腐剂的合成方法。
This paper introduces the properties, applications and syntheses of Nipagin ester, and its production situation at home and abroad. 介绍了尼泊金酯的性质、应用与合成方法以及国内外生产情况。
Nipagin esters was synthesized by the esterification of n-butyl and iso-butyl alcohol with p-hydroxybenzoic acid in the presence of vitamin C. 以维生素C为催化剂,对羟基苯甲酸和正丁醇及异丁醇为原料合成尼泊金正丁酯与尼泊金异丁醇。
The effect of acid and alcohol mole ratio, the amount of vitamin C catalyst and reaction time on the yield of Nipagin esters was investigated. 考察了酸醇摩尔比,催化剂用量,反应时间等对酯收率的影响。
Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p -hydroxybenzoic acid in the presence of vitamin C. 以维生素C为催化剂,对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。
In this paper, butyl nipagin was synthesized with solid heteropoly acid as catalyzer ,p-hydroxybenzoic acid and isobutanol as raw material. 本文以固体杂多酸为催化剂,以对羟基苯甲酸与异丁醇为原料合成尼泊金丁酯。
Yuan Hai-tao,Rui Han-ming,Ning Zheng-xiang.Study on antibacterial activity of Nipagin esters and fumarates [J].Food Science &Technology,2001(5):43-44. [5]袁海涛;芮汉明;宁正祥.;尼泊金酯类和富马酸酯类抑菌效果的研究 [J]
Such as rose oil, red pepper colorant, high-purity dimeric acid,fish oil ethylester,and extraction of wheat-germ oil,etc.And the prospect of application in daily chemical industry was also discussed. 如玫瑰油、辣椒红色素、高纯二聚酸、鱼油乙酯提纯和小麦胚芽油提取等,并对其在日化工业中的应用前景进行了论述。
At the same time, The paper also briefly prospected the vista of exploiting uses in the condiment and research trends of sodium nipagin esters. 同时阐述了尼泊金酯钠在调味品中的应用前景和生产研究开发动态。
The development of food preservative at home and abroad is introduced,and especially the properties and applications of a series of Nipagin esters. 介绍了国内外食品防腐剂的发展趋势,并重点介绍了尼泊金系列酯的性质和应用等。
The inhibition effect of Nipagin esters on three kinds of bacteria in neutral culture medium was studiec by means of filter paper disks and spectrophotometric investigation. 该文用滤纸圆片法和分光光度法研究了尼泊金酯等防腐剂在中性条件下对3种常见细菌的抑制作用。
The butyl nipagin is a sort of food antiseptic which is efficient highly and safe and is one of the applied widely food additives presently inside and outside. 尼泊金酯是一种高效、安全的食品防腐剂。是目前国内外应用广泛的食品添加剂之一。