 The work aims to optimise the physicochemical and tensile properties of vascular fibres extracted from a local date palm ratchas in Algeria by applying to Gucci Orthobanol Array Design L16, using two different extraction methods, alkali treatment with various concentrations and durations, characterising the fibres using SEMEDX, ATR-FTIR, XRD, and TGA, performing statistical analysis based on SN ratio and ANOVA to identify significant parameters affecting tensile strength and young's modulus, and developing a desirability function to identify optimal factors for maximising tensile properties. This article was authored by Abderazak Bazaarzi, Haitham Bumadiri, Gilbeto Garcia Del Pino, and others.