Sisal is a potential raw material for the production of bioproducts because it has high contents of cellulose and hemicellulose that generate fermentable sugars and can produce compounds of value for industrial use. The present study evaluates the structural composition of sisal bagasse to use it in the production of arabitol and xylitol. Sisal bagasse was characterized by determination of the moisture, pH, ash, soluble solids, extractives, alpha cellulose, holocellulose, hemicellulose and lignin. Electron microscopy and infrared and X-ray diffraction analyses were also performed. The cell growth of the yeast Debaryomyces hansenii in synthetic media was tested to determine the best conditions for the fermentation in the sisal bagasse hydrolysate. The results showed high amounts of hemicellulose (22.91%) in sisal bagasse biomass when compared to sugarcane and the conversion of hemicellulose, breaking into pentoses in the hydrolysed liquor from the sisal bagasse, was efficient (liquor rich in pentoses). These evidences were obtained through analytical determinations such as SEM and physical analyses of infrared and X-ray diffraction; in addition, the results showed that D. hansenii gave excellent arabitol production (1.14 g L−1) values in the sisal bagasse hydrolysate medium, thus demonstrating the importance of the biomass for obtaining bioproducts.

中文翻译：

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剑麻蔗渣用于生产具有工业价值的多元醇的结构化学特征和潜力

剑麻是生产生物产品的潜在原材料，因为它含有高含量的纤维素和半纤维素，可产生可发酵的糖，并可生产具有工业用途的化合物。本研究评估了剑麻蔗渣的结构组成，以将其用于生产阿拉伯糖醇和木糖醇。剑麻甘蔗渣通过测定水分、pH、灰分、可溶性固体、提取物、α纤维素、全纤维素、半纤维素和木质素来表征。还进行了电子显微镜和红外和 X 射线衍射分析。测试合成培养基中汉森酵母菌的细胞生长，以确定剑麻甘蔗渣水解物中发酵的最佳条件。结果显示半纤维素含量高 (22. 91%) 在剑麻蔗渣生物质中，与甘蔗相比，半纤维素的转化，在剑麻蔗渣的水解液中分解为戊糖，是有效的（富含戊糖的酒）。这些证据是通过分析测定如 SEM 和红外和 X 射线衍射的物理分析获得的；此外，结果表明，D. hansenii 在剑麻甘蔗渣水解产物培养基中提供了出色的阿拉伯糖醇产量（1.14 g L-1）值，从而证明了生物质对获得生物产品的重要性。