粮油食品科技
糧油食品科技
량유식품과기
SCIENCE AND TECHNOLOGY OF CEREALS,OILS AND FOODS
2015年
3期
7-10
,共4页
孙军涛%李亚欣%肖付刚%崔春利
孫軍濤%李亞訢%肖付剛%崔春利
손군도%리아흔%초부강%최춘리
玉米芯%低聚木糖%复合酶%活性炭%脱色
玉米芯%低聚木糖%複閤酶%活性炭%脫色
옥미심%저취목당%복합매%활성탄%탈색
corncob%xylo -oligosaccharide%compound enzyme%activated carbon%decolorization
研究了玉米芯生产低聚木糖的脱色工艺。采用由木聚糖酶和纤维素酶组成的复合酶对玉米芯进行水解生产低聚木糖，通过活性炭对低聚木糖提取液脱色工艺进行优化。结果表明，低聚木糖活性炭脱色的最佳工艺条件为：温度为40℃，脱色时间30 min，活性碳添加量20％，可溶性总糖含量11 mg／mL。产品脱色率可达68．93％，还原糖损失率为34．75％，脱色后的低聚木糖溶液经乙醇沉淀后制备低聚木糖，得率为11．58％。
研究瞭玉米芯生產低聚木糖的脫色工藝。採用由木聚糖酶和纖維素酶組成的複閤酶對玉米芯進行水解生產低聚木糖，通過活性炭對低聚木糖提取液脫色工藝進行優化。結果錶明，低聚木糖活性炭脫色的最佳工藝條件為：溫度為40℃，脫色時間30 min，活性碳添加量20％，可溶性總糖含量11 mg／mL。產品脫色率可達68．93％，還原糖損失率為34．75％，脫色後的低聚木糖溶液經乙醇沉澱後製備低聚木糖，得率為11．58％。
연구료옥미심생산저취목당적탈색공예。채용유목취당매화섬유소매조성적복합매대옥미심진행수해생산저취목당，통과활성탄대저취목당제취액탈색공예진행우화。결과표명，저취목당활성탄탈색적최가공예조건위：온도위40℃，탈색시간30 min，활성탄첨가량20％，가용성총당함량11 mg／mL。산품탈색솔가체68．93％，환원당손실솔위34．75％，탈색후적저취목당용액경을순침정후제비저취목당，득솔위11．58％。
The decolorization process of xylo -oligosaccharides from corncobs was studied.xylo -oligo-saccharides were extracted from corncobs by complex enzyme,which consisted of xylanase and cellulose. The decolorization process of xylo -oligosaccharides extract was optimized with activated carbon.Result indicated that the optimal parameters were as follows:activated carbon amount 20%,total soluble sugar content 11 mg/mL,at 40 ℃ for 30 min.Under the optimal conditions,the decolorization rate and the loss rate of reducing sugar were 68.93 % and 34.75 %,respectively.The yield of xylo -oligosaccha-rides after ethanol precipitation was 11.58%.
