PRODUCTION OF BACTERIAL CELLULOSE VIA ACETIC ACID HYDROLYSATE OF BAGASSE USED AS CARBON SOURCE
Bacterial cellulose(BC)has received substantial attention as a promising and renewable nanomaterial owing to its unique structural features and superior properties.Intensive study on BC preparation is mainly focused on their biosynthesized by certain bacteria,while the high economic costs of fermentation process especially the carbon sources still remain challenging its application.Herein,bacterial cellulose was synthesized by acetobacter xylinum via acetic acid prehydrolysate of bagasse used as carbon source.Initially,the bagasse was pretreated by acetic acid,the components in hydrolysate and removal rate was investigated,and the condition of pretreatment was optimized,the result showed the best pretreatment condition of bagasse was as follows:the pretreatment temperature was 160 ℃,the heating time was 60 min,the dosage of bagasse was 3.0%(m/m),the ratio of solid-to-liquid was 1/5.Then,prior to use as carbon source to cultivate acetobacter xylinum,the hydrolysate was firstly detoxified by activated carbon,the result revealed that the detoxification process was very efficient for the production of BC,which could be up to2.13 g/L when the dosage of activated carbon was 5%(m/V).Furthermore,the obtained production of BC was characterized by scanning electron microscopy(SEM),it was found that the diameter of BC between 30~80mm.In conclusion,the way that bacterial cellulose was produced via hydrolysate from bagasse used as carbon source is feasible,which is a model of waste recycling towards the sustainable development strategy.
Rendang Yang Zheng Cheng Xiao Liu
State Kay Laboratory of Pulp and Paper Engineering,South China University of Technology Guangzhou,510640,China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-5
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）