宁夏农林科技
寧夏農林科技
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NINGXIA JOURNAL OF AGRICULTURE AND FORESTRY SCIENCE AND TECHNOLOGY
2012年
7期
88-89
,共2页
微波辅助提取%超声波提取%分子量分布
微波輔助提取%超聲波提取%分子量分佈
미파보조제취%초성파제취%분자량분포
Microwave assisted extraction%Ultrasonic wave extraction%Molecular weight distributing
对比微波辅助法和超声波提取法对黄芪水提液分子量分布特征的影响。结果表明：对于分子量为2 000～50 000的较大物质,微波辅助提取10 min的浸出量是超声辅助提取30 min的14.53倍;对于分子量大于50 000的物质,微波辅助提取10 min的浸出量仅占总浸出物的1.947%,而超声辅助提取50 min为14.933%。因此,微波辅助工艺在较大分子量有效成分的快速浸出和避免无效物质的浸出方面显著优于超声波辅助工艺。
對比微波輔助法和超聲波提取法對黃芪水提液分子量分佈特徵的影響。結果錶明：對于分子量為2 000～50 000的較大物質,微波輔助提取10 min的浸齣量是超聲輔助提取30 min的14.53倍;對于分子量大于50 000的物質,微波輔助提取10 min的浸齣量僅佔總浸齣物的1.947%,而超聲輔助提取50 min為14.933%。因此,微波輔助工藝在較大分子量有效成分的快速浸齣和避免無效物質的浸齣方麵顯著優于超聲波輔助工藝。
대비미파보조법화초성파제취법대황기수제액분자량분포특정적영향。결과표명：대우분자량위2 000～50 000적교대물질,미파보조제취10 min적침출량시초성보조제취30 min적14.53배;대우분자량대우50 000적물질,미파보조제취10 min적침출량부점총침출물적1.947%,이초성보조제취50 min위14.933%。인차,미파보조공예재교대분자량유효성분적쾌속침출화피면무효물질적침출방면현저우우초성파보조공예。
Contrastive experiments of microwave assisted extraction（MAE） and ultrasonic wave technology were carried out to analyze the effect of the different kinds of extraction technology on the characteristics of molecular weight distributing of solute in Leguminosae water extraction liquid.Results indicated that extracts with molecular weight 2 000-50 000 Dalton at 10 minutes by MAE technology was 14.53 times of that at 30 minutes by ultrasonic wave extraction;extracts with molecular weight bigger than 50 000 Dalton was 1.947% of total extracts at 10 minutes by MAE technology,but it was 14.933% of that at 50 minutes by ultrasonic wave extraction.Therefore,MAE technology was obviously better than ultrasonic wave technology on the fast extraction of valid components with bigger molecular weight and avoiding of invalid extracts.
