Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
College of Chemical Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, 201137, People's Republic of China.
Appl Biochem Biotechnol. 2019 Apr;187(4):1300-1311. doi: 10.1007/s12010-018-2893-1. Epub 2018 Sep 15.
Pectin, as one of the most widely used functional polysaccharide, can be abundantly extracted from apple pomace which is the main by-product of apple juice industry. In the case of 110 min, 10% (w/w) acetic acid (AA), and 100 °C, extraction yield of pectin reached 19.6%. Compared with mineral acid-extracted pectin, the yield, molecular weight, galacturonic acid content, and DE of the AA-extracted pectin were higher while neutral sugars were lower. Furthermore, the AA-extracted pectin solution demonstrated a higher viscosity during the shear rate increased, and a higher G″ modulus than pectin extracted with mineral acid and commercial pectin possibly because of stronger polymer chain interaction, which was reflected in gel textural properties. The green approach for the pectin production, in terms of pectin components was developed from apple pomace using AA that was highly competitive and environmentally friendly process.
果胶是一种用途最广泛的功能性多糖之一，可从苹果渣中大量提取，苹果渣是苹果汁工业的主要副产品。在 110 分钟、10%（w/w）乙酸（AA）和 100°C 的条件下，果胶的提取率达到 19.6%。与矿物酸提取的果胶相比，AA 提取的果胶的产率、分子量、半乳糖醛酸含量和 DE 更高，而中性糖则更低。此外，AA 提取的果胶溶液在剪切速率增加时表现出更高的粘度，且 G″模量高于用矿物酸和商业果胶提取的果胶，这可能是由于聚合物链相互作用更强，这反映在凝胶的物理性质上。从苹果渣中用 AA 提取果胶的方法是一种绿色方法，从果胶成分的角度来看，该方法使用 AA 是一种极具竞争力且环保的工艺。
