[Lauric acid supply and procurement] New standard requirements for coconut juice. Do you understand the lauric acid and myristic acid in it?

In May this year, the “Plant Protein Beverage Coconut Juice and Reconstituted Coconut Juice” industry The standards are open for comment. The standard defines coconut water and reconstituted coconut water, and stipulates the content of coconut pulp or pulp products. It stipulates that no flavors may be added to freshly squeezed coconut juice.

The standard stipulates that coconut juice is made from coconut pulp and/or coconut puree after juicing the coconut pulp, with or without the addition of other food raw materials. and/or food additives, processed liquid beverages.

The coconut juice made from fresh coconut pulp without added flavors can be called freshly squeezed coconut juice. Reconstituted coconut milk is made from coconut pulp and coconut products (such as coconut milk powder, concentrated coconut milk, etc.) other than coconut pulp after juice extraction from coconut pulp, with or without the addition of other food raw materials and/or food additives. , a processed liquid drink.

In terms of raw and auxiliary materials, the amount of coconut pulp and/or coconut pulp products added (based on coconut puree) is not less than 7%. Except for coconut pulp and coconut pulp products, raw materials and auxiliary materials and food additives containing lauric acid and/or myristic acid shall not be used to process coconut juice and reconstituted coconut juice. product. The standards also stipulate that coconut pulp should be fresh, moderately mature, have normal flavor, and be free from pests and diseases, rot, and browning; coconut pulp products should have normal flavor and no browning.

In terms of physical and chemical standards, the standard stipulates that the proportion of lauric acid in total fatty acids should reach ≥40%, and the proportion of myristic acid in total fatty acids should reach 15%. %.

Suppliers of these two types of fatty acids point out that lauric acid and myristic acid are both types of fatty acids, which have a lower risk of cardiovascular disease than Other saturated fatty acids should be low. Let’s take a brief look at these two types of fatty acids and their production methods:

Lauric acid (also known as dodecanoic acid and dodecanoic acid ), white needle-like crystals, soluble in methanol, slightly soluble in acetone, petroleum ether and water. The content of lauric acid in coconut oil is as high as 45-52%. It can be used most widely in the surfactant industry. It can also be used in the perfume industry and pharmaceutical industry. In addition, it can also be used as a food additive and used in the manufacture of cosmetics. It is used in the production of soaps, detergents, cosmetic surfactants and chemical fiber oils. of raw materials.

Industrial production methods can be summarized into two categories: one is obtained from natural vegetable oils through saponification or decomposition under high temperature and pressure; the other is separated from synthetic fatty acids. Japan mainly uses coconut oil and palm kernel oil as raw materials to produce lauric acid. Natural vegetable oils used to prepare lauric acid include: coconut oil, litsea cubeba kernel oil, palm kernel oil and mountain pepper kernel oil. Other plants, such as palm kernel oil, tree seed oil, camphor tree seed oil, etc., can also be used to produce lauric acid in the service industry. The C12 fraction left after extracting dodecanoic acid contains a large amount of dodecenoic acid, which can be hydrogenated at normal pressure without a catalyst and can convert hydrocarbons into dodecanoic acid with a conversion rate of more than 86%

Myristic acid (also known as myristic acid and myristic acid) is a white to yellowish-white hard solid, occasionally a shiny crystalline solid, or a white to yellowish-white powder. , odorless. Insoluble in water, soluble in anhydrous ethanol, methanol, ether, petroleum ether, benzene and chloroform. It is obtained by vacuum fractionation of mixed fatty acids or fatty acid methyl esters obtained from coconut oil and palm oil. It is used as a raw material for soaps, soaps, detergents, cosmetic surfactants and chemical fiber oils; it is used to manufacture emulsifiers, waterproofing agents, curing agents, polyvinyl chloride heat stabilizers and plasticizers, etc. It is also a raw material for spices and medicine.