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精对苯二甲酸是如何起到食品防腐的目的的?

来源:http://www.jnjhhg.cn/ 日期:2020-12-09 发布人: 浏览次数:0
通过这一段时间的了解,相信大家对精对苯二甲酸已经是不陌生了,但对于想进一步了解本产品的相关知识的客户来说这些内容还是不够的。今天小编就将关于精对苯二甲酸方面的知识与大家分享一下,希望引起大家的重视,让大家对精对苯二甲酸有一个深层次的了解。这样大家在购买使用精对苯二甲酸时也能做到心中有数,不慌不忙,希望对大家有所启发与帮助。请看下面的具体阐述吧:
Through this period of understanding, I believe you are no stranger to PTA, but for customers who want to further understand the relevant knowledge of this product, these contents are not enough. Today, I will share the knowledge about PTA with you, hoping to arouse your attention and let you have a deep understanding of PTA. In this way, we can also know when purchasing and using PTA, and we hope that it can enlighten and help you. Take a look at the following details:
精对苯二甲酸亲油性较大,易穿透细胞膜进入细胞体内,干扰细胞膜的通透性,抑制细胞膜对氨基酸的吸收;进入细胞体内电离酸化细胞内的碱储,并抑制细胞的呼吸酶系的活性,阻止乙酰辅酶A缩合反应,从而起到食品防腐的目的。
PTA is lipophilic and easy to penetrate the cell membrane and enter the cell body, interfering with the permeability of the cell membrane and inhibiting the absorption of amino acids by the cell membrane; entering the cell body, it ionizes and acidifies the alkali storage in the cell, inhibits the activity of the cell's respiratory enzyme system, and prevents the condensation reaction of acetyl CoA, so as to achieve the purpose of food preservation.
精对苯二甲酸用于化学分析用试剂;用于医药工业和植物遗传研究 苯甲酸又称为安息香酸,故苯甲酸钠又称安息香酸钠。苯甲酸在常温下难溶于水,在空气(特别是热空气)中微挥发,有吸湿性,大约常温下0.34g/100ml;但溶于热水;也溶于乙醇、氯仿和非挥发性油。而苯甲酸钠在都使用苯甲酸钠;苯甲酸和苯甲酸钠的性状和防腐性能都差不多。
Purified terephthalic acid is used as a reagent for chemical analysis, and used for pharmaceutical industry and plant genetic research. Benzoic acid is also known as benzoic acid, so sodium benzoate is also known as sodium benzoate. Benzoic acid is not soluble in water at room temperature, but slightly volatile in air (especially hot air), with hygroscopicity, about 0.34g/100ml at room temperature; but soluble in hot water; also soluble in ethanol, chloroform and non-volatile oil. Sodium benzoate is used in both benzoate and sodium benzoate, and the properties and anticorrosion properties of benzoic acid and sodium benzoate are similar.

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