The integration of easily available and under-exploited biomasses is considered a sustainable strategy in biorefining approaches. Mediterranean countries, especially Algeria, Morocco, and Tunisia, offer such under-exploited waste of different origins. This study revealed the chemical composition and phytochemical characteristics of various agri-food side-products, marine residues, and wild grasses collected in the Maghreb region. Results showed that these wastes contained variable proportions of polysaccharides, lignin, constitute molecules (proteins, lipids, and inorganic molecules) and, various secondary metabolites, mainly flavonoids and condensed tannins. Based on this, the Mediterranean waste was divided into three categories. The first category included waste with high lignin content (40 wt%). The second category contained waste with lignin content below 10 wt% and structural carbohydrate content below 50 wt%. Additionally, the waste in this category comprised noticeable amounts of flavonoids and condensed tannins, particularly from thistle, speedwell, and spurge. Finally, the third category included waste with lignin content above 15 wt% and carbohydrate content in the range of 45–55 wt%. The results also showed that the waste in the third category has a chemical composition similar to that of raw materials envisioned for use in European or North American commercial biorefineries. The findings of this study indicate that the biomass waste employed in this study can be used to develop marketable bioproducts and may be a potential raw material for a biorefinery facility.

容易获得和开发不足的生物质的整合被认为是生物精炼方法中的可持续策略。地中海国家，尤其是阿尔及利亚，摩洛哥和突尼斯，提供了这种不同来源的开采不足的废物。这项研究揭示了在马格里布地区收集的各种农业食品副产品，海洋残留物和野草的化学成分和植物化学特征。结果表明，这些废物中含有不同比例的多糖，木质素，构成分子（蛋白质，脂质和无机分子）以及各种次生代谢产物，主要是类黄酮和缩合的单宁。基于此，将地中海废物分为三类。第一类包括木质素含量高（40 wt％）的废物。第二类包含木质素含量低于10 wt％，结构碳水化合物含量低于50 wt％的废物。此外，该类别的废物还包含大量的类黄酮和缩合的单宁酸，特别是来自蓟，速成和大戟。最后，第三类包括木质素含量超过15 wt％，碳水化合物含量在45-55 wt％范围内的废物。结果还表明，第三类废物的化学成分与预期用于欧洲或北美商业生物精炼厂的原料的化学成分相似。这项研究的结果表明，这项研究中使用的生物质废物可用于开发可销售的生物产品，并且可能是生物精炼厂的潜在原料。