The paper aims at optimising and validating possible routes toward the full valorisation of grape agrowaste to produce bioactive molecules and new materials. Starting from Merlot red pomace, phenol complex mixtures were successfully extracted by using two different approaches. Extracts obtained by solvent-based (SE) technique contained up to 46.9 gGAeq/kgDW of total phenols. Depending on the used solvent, the prevalence of compounds belonging to different phenol families was achieved. Pressurized liquid extraction (PLE) gave higher total phenol yields (up to 79 gGAeq/kgDW) but a lower range of extracted compounds. All liquid extracts exerted strong antioxidant properties. Moreover, both SE and PLE extraction solid residues were directly exploited (between 5 and 20% w/w) to prepare biocomposite materials by direct mixing via an eco-friendly approach with PHBV polymer. The final composites showed mechanical characteristics similar to PHVB matrix. The use of pomace residues in biocomposites could therefore bring both to the reduction of the cost of the final material, as a lower amount of costly PHBV is used. The present research demonstrated the full valorisation of grape pomace, an agrowaste produced every year in large amounts and having a significant environmental impact.

本文旨在优化和验证可能的途径，以全面提高葡萄种植味素的价值，以生产生物活性分子和新材料。从梅洛红色果渣开始，使用两种不同方法成功提取了苯酚复合物混合物。通过溶剂基（SE）技术获得的提取物含有高达46.9 gGAeq / kgDW的总酚。根据所使用的溶剂，可以实现不同酚类化合物的普遍使用。加压液体萃取（PLE）可获得较高的总苯酚收率（高达79 gGAeq / kgDW），但萃取化合物的范围较小。所有液体提取物均具有强大的抗氧化性能。此外，SE和PLE提取的固体残留物均被直接利用（5％至20％w / w），通过生态友好的方法与PHBV聚合物直接混合，从而制备生物复合材料。最终的复合材料显示出类似于PHVB基质的机械特性。因此，在生物复合物中使用果渣残余物可同时降低最终材料的成本，因为使用了较少量的昂贵PHBV。本研究表明，葡萄果渣是完全增值的，葡萄果渣是每年大量生产的一种农作物味，对环境具有重大影响。因为使用了少量昂贵的PHBV。本研究表明，葡萄果渣是完全增值的，葡萄果渣是每年大量生产的一种农作物味，对环境具有重大影响。因为使用了少量昂贵的PHBV。本研究表明，葡萄果渣是完全增值的，葡萄果渣是每年大量生产的一种农作物味，对环境具有重大影响。