Chinese researchers have achieved a breakthrough in bio-based polyester, raising plant-derivedcontent to over 50% using nonfood crops like straw and cassavaa 20% increase overconventional methods.The innovative enzymatic process converts cellulose into glycol monomers, reducing petroleumdependence. The fiber demonstrates 4.5cN/dtex tensile strength and 15% better heat resistance,with international biocertification.Industry experts confirm this aligns with China's Green Manufacturing Guidelines, projecting costparity with petroleumbased polyester by 2025. Major textile firms are now establishing pilotproduction lines.