摘要
以刺芹侧耳(Pleurotus eryngii)子实体为试验材料,通过单因素和正交试验L9(34)探讨碱法提取其水溶性膳食纤维(soluble dietary fiber,SDF)的最佳工艺。结果表明,最佳提取条件为:液料比45∶1(mL/g),NaOH浓度0.5%,提取温度60℃,提取时间3h。在此条件下SDF得率为4.05%,持水力为1.25±0.05g/g,SDF溶胀性为29.38±0.78mL/g,糖含量为76.74±3.30%。
Orthogonal testing [L9 （34 ）]was used to optimize selected parameters （NaOH concentration, extraction time,extraction temperature,liquid：solid ratio）affecting the alkali extraction of soluble dietary fiber （SDF）from Pleurotus eryngii fruit bodies.The maximal yield of SDF （4.05%）was obtained when 1 g of powdered fruit body was immersed in 45 mL of 0.5% NaOH for 3 hours at 60 ℃.The water holding and swelling capacities of the SDF were 1.25 ± 0.05 g/g and 29.38 ± 0.78 mL/g respectively,and the polysaccharide content was 76.74±3.30%.
出处
《食用菌学报》
北大核心
2014年第4期67-70,共4页
Acta Edulis Fungi
基金
山西农业大学科技创新基金项目(编号:201315)
山西省科技攻关项目(编号:2006031190)
山西农业大学科研启动基金(编号:xb2012019)的部分研究内容
