27 Jun 2019 --- Coloring foods supplier GNT Group has developed a new range of blue powders derived from spirulina with significantly high color intensity. Spirulina is a blue-green algae, valued for its coloring and nutritional properties and is widely and safely consumed globally. The new range is available in both standard and micronized powder form and is offered with a choice of carriers, including maltodextrin or sugar. The powders are guaranteed to be trehalose-free, ensuring good levels of consumer acceptance, according to the company.