Research and Innovation

Technical Process

With the comprehensive technologies of enzyme engineering, genetic engineering, bioinformatics, fermentation engineering and chemical engineering, Yuantian Biotech has developed efficient and specific PET degrading enzymes, which can degrade all kinds of PIR and PCR waste PET materials (polyester fabric, beverage bottles, PET film, etc.) directly into monomer r-PTA and r-MEG under normal pressure and temperature.

After crystallization and distillation, the monomer r PTA and r EG can be obtained. The two monomers can then be polymerized to reborn-PET(rb PET), which can be further used in the production of food packaging, textile fibers, engineering materials and optical devices, in order to achieve upgrade recycling and unlimited cyclic utilization.

Technical Platform

Technical Advantages

Mild Reaction Conditions: Capable of degrading various waste PET materials at normal temperature and pressure, avoiding PET’s glass crystallization temperature, thereby significantly reducing costs and energy consumption.

Breakthrough in Enzyme Stability and Performance: Yuantian has a complete biology, enzyme molecular design, transformation and large-scale fermentation platform. Based on big data and AI machine learning, the secondary structure of the enzyme was disassembled and the tertiary structure was iteratively reconstructed. Then the The enzyme with high activity and thermo-stability was obtained. The enzyme transformation database with independent intellectual property rights was constructed. Large scale fermentation and industrial application were realized.

Superior Physical Properties: melting point, ash content, moisture, intrinsic viscosity, chroma and BPA are meet a criterion. R-PTA and rb-PET have completed spinning-weaving-clothing-shoe making process, which realized the textile to textile.

Advancements in Blended Fabric Recycling: polyester-Cotton Blends: Precisely degrades PET while preserving cotton fiber integrity, establishing a pathway from "waste cotton→HMF→FDCA." This resolves polyester-cotton separation challenges and provides non-grain raw materials for bio-based FDCA, avoiding competition with food resources.

Polyester-Spandex Blends: after enzymatic hydrolysis, spandex retains over 90% elasticity. Secondary utilization technology validation has begun which can apply in sportswear and medical industries, achieving a "waste textile→regeneration→high-value" cycle.

Unique Traceability System: Pioneered an enzymatic traceability system, ensuring full recycling process traceable.