Nowadays food coloring used in food industry are mainly natural and synthetic coloring. As people are much more concerning about food safety, so what are the differences between natural and synthetic coloring ? Let’s see.
Natural colouring advantages
1.Most of the natural pigments come from animals and plants. Except for Garcinia cambogia, the rest are non-toxic to the human body, and the safety of natural pigments is high.
2. Most of the natural pigments have biological activity (such asβ-carotene, VB2), so they have both nutritional strengthening effects.
3.Natural pigments can better imitate the color of natural objects, and the color tone is more natural when coloring.
4.Some varieties have a special aromatic smell, which can bring pleasure to people when added to food.
Shortcoming for Natural coloring
1.The content of natural pigments is generally low, and the tinting power is worse than that of synthetic pigments.
2.The cost of natural pigments is high.
3.The stability is poor, and some varieties have different hues with different PH values.
4.It is difficult to be used to mix out any color tone.
5.In the process of processing and circulation, it is easily affected by external factors and easily deteriorated.
6.Due to the influence of coexisting ingredients, some natural pigments will have peculiar smell.
1.Low cost and low price.
2.It has bright color and strong tinting strength.
3.High stability, odorless, tasteless, easy to dissolve, and easy to color.
Synthetic pigment shortcoming
Most of the synthetic pigments are made from coal tar, whose chemical structure is an azo compound, which can be metabolized in the body to generateβ-naphthylamine and a-amino-1-naphthol. Many people have a narrow understanding of natural pigments.
In general, everyone's definition of natural pigments is that monomer pigments are natural pigments. There is a misunderstanding here. The types of natural pigments on the market are limited, such as: red, yellow, blue, green and other series. In fact, there are a wide variety of natural pigments, and the market demand is also very large. It is far from enough to rely on single natural pigments, so there will be many compounds obtained by compounding two or more monomeric natural pigments. Natural colouring. Compound natural pigments also have the advantages of monomer natural pigments.