摘要
研究了一株血红密孔菌(Pycnoporus sanguineus SYBC-L7)固态发酵产色素的提取条件及色素的理化性质。结果表明:该菌株在以木屑为基质固态发酵时色素产量最高;以甲醇为提取液,在35℃水浴下40 min后可从发酵后的培养物中最大化提取该色素;所得色素溶液呈黄色,在可见光区的最大吸收波长为430 nm,该色素的热稳定性和耐酸性较好,常用的氧化剂与还原剂对其影响不大。
The optimum conditions of extracting pigment from the solid state fermentation culture of Pycnoporus sanguineus SYBC-L7 were studied,and the physicochemical properties of this pigment were also analyzed.The results showed that the pigment could be optimum produced by solid-state fermentation with wood chips.Using methanol as the extraction solvent,the pigment could be maximally extracted from the solid culture at 35 ℃ after 40 min with water bath.The extraction solvent was yellow with a maximum absorption wavelength of 430 nm.The pigment has a good thermal resistance as well as acid resistance,and it cannot be affected by common oxidizing and reducing agents.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2013年第11期1163-1168,共6页
Journal of Food Science and Biotechnology
基金
国家自然科学基金项目(21176106)
国家863计划项目(2010AA101501)
国家重大科技支撑与自主创新专项引导资金项目(BY2010117)
关键词
色素
固态发酵
提取
稳定性
血红密孔菌
pigment
solid state fermentation
extraction
stability
Pycnoporus sanguineus
