Many of us have been guilty of binning a mushy, overripe banana – but now scientists say they have a solution with the launch of a genetically engineered non-browning banana.The product is the latest in a series of gene-edited fruits and vegetables designed to have a longer shelf life. Scientists say the technology is emerging as a powerful new weapon against food waste, which occurs globally on an epic scale.The banana, developed by Tropic, a biotech company based in Norwich, is said to remain ...