包装与食品机械2025，Vol.43Issue(4)：59-67,9.DOI:10.3969/j.issn.1005-1295.2025.04.007
氧化镁-葛根基活性炭的制备及其在糖浆脱色中的应用
Preparation of magnesium oxide-Pueraria lobata based activated carbon and its application in syrup decolorization
摘要
Abstract
To explore novel,excellent-adsorption and renewable materials for syrup decolorization,a magnesia-Pueraria lobata based porous activated carbon composite was prepared using Pueraria lobata as the raw material through chemical precipitation-in situ composition method,involving carbonization and activation steps.The composite was characterized by SEM,FTIR,XRD,and BET,and its application in syrup decolorization was investigated.Results showed that the composite possessed both MgO alkaline sites and a high specific surface area(656.28 m2/g)of activated carbon,with a well-developed pore structure providing abundant sites for pigment adsorption.Single-factor and orthogonal tests determined the optimal decolorization process for brown sugar remelt syrup:composite dosage 0.70 g,pH 10.0,temperature 60 ℃,and time 50 min.Under these conditions,the decolorization rate reached 96.7%,outperforming Pueraria lobata based porous activated carbon and commercial MgO.After regeneration,the composite maintained a decolorization efficiency of 57.0%,demonstrating good renewability and economic potential.This study provides an efficient and economical decolorization solution for the sugar industry.关键词
氧化镁/葛根基多孔活性炭/赤砂糖回溶糖浆/脱色率Key words
magnesium oxide/Pueraria lobata based porous activated carbon/brown sugar remelt syrup/decolorization rate分类
轻工纺织引用本文复制引用
唐婷范,韦金凤,李琦,李贵强,陈金足,程昊..氧化镁-葛根基活性炭的制备及其在糖浆脱色中的应用[J].包装与食品机械,2025,43(4):59-67,9.基金项目
广西自然科学基金项目(2025GXNSFHA069196) （2025GXNSFHA069196）
