Laboratory of Phytochemistry, State University of Feira de Santana, Feira de Santana, Brazil.
Carbohydr Polym. 2013 Feb 15;92(2):1997-2001. doi: 10.1016/j.carbpol.2012.11.089. Epub 2012 Dec 1.
In this work, sisal waste was used as a source of pectin. Sisal is known worldwide as a source of hard fibres, and Brazil is the largest producer of sisal, producing more than 246,000 tonnes. However, the process of removing the fibres of the sisal leaf generates 95% waste. This study investigated the effect of the liquid/solid ratio (%), time (min), and temperature (°C) on the yield of the pectin obtained from sisal waste by attractive environmentally friendly process. A statistical Box-Behnken design was applied to determine the important effects and interactions of these independent variables on the yield of pectin, the dependent variable. Significant models were obtained. The yield of the extracted pectin ranged from 4.61 to 19.2%. The conditions that produced the highest yield (19.2%) were a temperature of 85 °C, extraction time of 60 min and a liquid/solid ratio of 2%.
在这项工作中，剑麻废料被用作果胶的来源。剑麻作为硬纤维的来源在世界范围内广为人知，巴西是最大的剑麻生产国，产量超过 246000 吨。然而，去除剑麻叶纤维的过程会产生 95%的废料。本研究通过有吸引力的环保工艺，考察了液/固比（%）、时间（min）和温度（℃）对剑麻废料中果胶产率的影响。采用统计 Box-Behnken 设计来确定这些独立变量对果胶产率（因变量）的重要影响和相互作用。得到了显著的模型。提取的果胶产率范围为 4.61%至 19.2%。在温度为 85°C、提取时间为 60 分钟和液/固比为 2%的条件下，可获得最高的产率（19.2%）。
