The blue-green algae known as spirulina could be the backbone of a new primary industries sector if a two-year project assessing the viability of large-scale production is successful, the Ministry for Primary Industries (MPI) says. Along with producer NZ Algae Innovations, it will invest more than half a million dollars through the Sustainable Food and Fibre Futures fund to assess the opportunity. MPI’s contribution would be $260,000, while the industry would contribute $390,000.