摘要
考察了浸提液的碱浓度、浸提温度和蒸馏加盐量对烟碱提取率的影响。结果表明:①烟碱的提取率随着浸提液碱浓度的增大而减小,但在氢氧化钠浓度达到8.5g/L后反而会缓慢增加,用蒸馏水作浸提液的提取率最大;②60℃下浸提烟碱的提取率较高;③加盐蒸馏对提高烟碱提取率有显著的促进作用,但加盐量达到13.5gNaCl/10g烟叶后增加趋势逐渐平缓。
The effects of the concentration of sodium hydroxide solution, immersing temperature and the amount of salt added during distillation on the yield of nicotine were examined. The results showed that 1） the yield of nicotine decreased with the increase of concentration of sodium hydroxide solution, until the concentration of NaOH reached 8.5g/L, then increased slowly, the highest yield of nicotine was obtained by extracting with water; 2） the yield was higher when immersing temperature was at 60℃ ; 3） the yield of nicotine was obviously promoted by adding salt during distillation and the tendency was flattened when the content of NaCl was over 13.5g per 10g tobacco.
出处
《烟草科技》
EI
CAS
北大核心
2006年第12期35-37,共3页
Tobacco Science & Technology
关键词
盐析效应
废次烟叶
烟碱
萃取
Salting out effect
Waste and inferior tobacco
Nicotine
Extracting
