Biorefinery of sunflower by-products: Optimization of twin-screw extrusion for novel biostimulants.

ABSTRACT: In view of improving the circularity and sustainability of crop production, sunflower by-products were extracted using twin-screw extrusion (TSE) to produce sunflower extract, a plant biostimulant that alleviates plant shoot development under salt stress conditions. The TSE process is a thermo-mechano-chemical pre-treatment method for the separation of liquid fraction from the biofiber. To improve the cost-efficiency of extraction, we determined the key procedure of TSE extraction within the production chain for biostimulants derived from sunflower bark and heads. This study scrutinizes sample preparation and extraction methods optimizing the sunflower by-product biorefinery, reducing energy input and maximal recovery of biostimulant activity. Optimal extraction conditions were obtained wi

SUBMITTER: Li J 

PROVIDER: S-EPMC11869008 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature