Chemical Production of Pectic Oligosaccharides from Orange Peel Wastes

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• 作者：Martina Martnez ; Remedios Yez ; Jos Luis Alons ; Juan Carlos Paraj
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2010
• 出版时间：September 15, 2010
• 年：2010
• 卷：49
• 期：18
• 页码：8470-8476
• 全文大小：235K
• 年卷期：v.49,no.18(September 15, 2010)
• ISSN：1520-5045

文摘

Orange peel wastes (OPW) were extracted with water to remove soluble material, and the resulting solid phase (which was obtained at a yield of 48.8 kg/100 kg of OPW, oven-dry basis) was employed as a substrate for the manufacture of pectic oligosaccharides by nonisothermal processing with hot, compressed water (autohydrolysis or hydrothermal treatments). The effects of treatments on the composition of both liquors and spent solids were assessed in terms of the severity factor (Ro). Operating under selected conditions (maximum temperature of 160 °C, corresponding to Ro = 288 min), the oligosaccharide yield (including oligogalacturonides, arabinooligosaccharides, and galactooligosaccharides) accounted for 25.1 kg/100 kg of extracted OPW, whereas limited concentrations monosaccharides and nonsaccharide compounds were present in the reaction media.