In a remarkable breakthrough for recycling, Brazil has found an innovative way to transform banana crop waste into valuable products. Each hectare of banana plantation generates approximately 220 tons of residual biomass annually, a resource that until now was underutilized.
Transformation of Banana Trunks into Sustainable Products
The banana pseudostem, a fleshy part usually discarded after harvest, has a new use thanks to initiatives like Banana Têxtil from the SENAI Institute of Textile Technology and Design in Santa Catarina. This project demonstrates that pseudostems can be turned into fabrics, paper, and packaging, beyond traditional composting.
However, the process is not without challenges. Due to its high water content, the pseudostem is heavy and deteriorates quickly, posing significant logistical challenges. Therefore, it is crucial to process this material near the plantations to minimize transportation costs.
Not all stems are the same; their characteristics such as size and moisture affect the quality of the fiber. For the textile or paper industry, maintaining regularity is essential for mass production.
The process begins with stripping, separating the useful fiber from the pulp using rollers and blades. Subsequently, the material is washed and dried, processes that must be efficient in water and energy consumption to maintain environmental benefits.
Technical studies have highlighted mechanical fiber extraction as a viable option by avoiding harsh chemicals, producing fibers suitable for composite and industrial materials.
The most striking aspect is the use of these fibers in the textile industry. Tests have shown that pseudostem fibers can achieve a comparative strength superior to jute and sisal, sparking industrial interest.
For consumers, this translates into renewable and biodegradable materials, utilizing an existing waste without the need for new plantations.
Applications of banana fiber extend to the paper sector, providing a sustainable alternative to wood pulp, especially in producing regions where the pseudostem is available after each harvest.
Aside from the fiber, other by-products such as sap and pulp can also be used to create fertilizers and biofertilizers, closing the sustainability loop.
The real challenge lies not only in producing a new fabric but in establishing a solid supply chain, with consistent quality and economic benefits for all involved.
The Banana Têxtil project, involved in the BRICS Solutions Awards, is an example of how agricultural waste can be transformed into a high-value solution, according to Fabrízio Pereira, regional director of SENAI.
Although it will not replace all current materials, this Brazilian model sets a precedent for better utilizing existing resources, reducing pressure on natural resources.
