SurePure, Inc. announced that it has signed a sales agreement with a global leader in specialty plant-based natural ingredients, in which SurePure's proprietary photopurification technology will be utilized to purify the company's natural colourant products. SurePure demonstrated the efficacy of its technology, which uses UV light energy as opposed to heat, was exemplified in trials that have provided a significant reduction (Log 4) in yeasts and moulds in Spirulina extract rich in phycocyanine without inducing any modification of product intrinsics, particularly the colouring capability.