CAJ | 학술논문

为了研究取代SO2的新型糖用澄清剂，以壳聚糖( CTS)为原料、3氯2羟丙基三甲基氯化铵( CTA)为改性剂，采用微波辐射技术制备季铵化壳聚糖。以该产物对蔗汁澄清的脱色率和纯度差为评价指标，优化制备条件，用扫描电镜( SEM)、红外光谱仪( FT-IR)及核磁共振(1 H-NMR)分析产物性能及表征结构。结果表明，在微波功率400 kW、辐射时间15 min、mCTA：mCTS=6：1、mNaOH：mCTS=1：1条件下，制备的季铵化壳聚糖为2羟丙基三甲基氯化铵壳聚糖，对蔗汁澄清的脱色率和纯度差分别达61.58%和2.05%，并通过对比亚硫酸法澄清工艺的实际生产数据和经济核算，认为季铵化壳聚糖可以取代SO2作为糖用澄清剂应用于蔗汁澄清过程。
위료연구취대SO2적신형당용징청제，이각취당( CTS)위원료、3록2간병기삼갑기록화안( CTA)위개성제，채용미파복사기술제비계안화각취당。이해산물대자즙징청적탈색솔화순도차위평개지표，우화제비조건，용소묘전경( SEM)、홍외광보의( FT-IR)급핵자공진(1 H-NMR)분석산물성능급표정결구。결과표명，재미파공솔400 kW、복사시간15 min、mCTA：mCTS=6：1、mNaOH：mCTS=1：1조건하，제비적계안화각취당위2간병기삼갑기록화안각취당，대자즙징청적탈색솔화순도차분별체61.58%화2.05%，병통과대비아류산법징청공예적실제생산수거화경제핵산，인위계안화각취당가이취대SO2작위당용징청제응용우자즙징청과정。
To prepare a new clarifying agent to replace SO2 in sugarcane industry, quaternized chi-tosan was prepared in this study using 3-chloro-2-hydroxypropyl trimethylammonium chloride ( CTA) as a modifier and chitosan ( CTS) as raw material under treatment of microwave radiation.Optimal preparation conditions of quaternized chitosan were evaluated by the decolourization ratios and the purity differences to cane juice clarification, and the product was analyzed by scanning electron mi-croscope ( SEM) , fourier transform infra-red spectrum ( FT-IR) and 1 H-nuclear magnetic resonance ( 1 H-NMR).The results indicated that under treatment of microwave power 400 kW, treatment time 15 min, mCTA:mCTS=6:1 and mNaOH:mCTS=1:1, the product was proved to be 2-hydroxypropyl trim-ethylammonium chloride chitosan.The decolourization ratio and the purity difference to cane juice clarification were 61.58% and 2.05%, respectively.According to data obtained from sulfitation process and economic accounting, the results indicated that quaternized chitosan could replace SO2 in cane juice clarification.