文献类型：期刊文献

英文题名：Production of bacterial cellulose from enzymatic hydrolysate of kitchen waste by fermentation with kombucha

作者：Qiu Weihua[1];Ren Hong[2,3];Wang Qianhui[1,2,3]

第一作者：Qiu Weihua

通讯作者：Qiu, WH[1];Ren, H[2];Ren, H[3]

机构：[1]Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 North 2nd St, Beijing 100190, Peoples R China;[2]Beijing Technol & Business Univ, Sch Light Ind, Key Lab Cleaner Prod & Integrated Resource Utiliz, Beijing 100048, Peoples R China;[3]Beijing Union Univ, Coll Tourism, Dept Food & Beverage Management, Beijing 100101, Peoples R China

第一机构：Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 North 2nd St, Beijing 100190, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 North 2nd St, Beijing 100190, Peoples R China;[2]corresponding author), Beijing Technol & Business Univ, Sch Light Ind, Key Lab Cleaner Prod & Integrated Resource Utiliz, Beijing 100048, Peoples R China;[3]corresponding author), Beijing Union Univ, Coll Tourism, Dept Food & Beverage Management, Beijing 100101, Peoples R China.|[1141732]北京联合大学旅游学院;[11417]北京联合大学;

年份：0

外文期刊名：BIOMASS CONVERSION AND BIOREFINERY

收录：;EI(收录号：20222612273697);Scopus(收录号：2-s2.0-85132692325);WOS:【SCI-EXPANDED(收录号:WOS:000813814100002)】；

基金：This work was supported by the Cooperation Fund Project of Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences (DNL180305), and the Beijing Municipal Education Commission "Practical Training Plan" for Cross-Training of High-Level Talents in Beijing Colleges and Universities (Scientific Research).

语种：英文

外文关键词：Kitchen waste; Enzymatic hydrolysate of kitchen waste; Bacterial cellulose; Kombucha; Box-Behnken design

摘要：The industrialization and application of bacterial cellulose (BC) are restricted by high production cost and low productivity. In this paper, enzymatic hydrolysate of kitchen waste (KWH) was used as an alternative low-cost source to produce BC, aiming to facilitate its economic feasibility of industrial production. When KWH containing 13.11% total sugar and 1.27% total protein was used as medium of kombucha, BC yield was rapidly increased to 6.05 +/- 0.17 g L-1 at 7 days of fermentation. As the extra nutrients, adding 5% glucose and 0.5% ammonium sulfate would significantly decrease the BC yield, while 0.5% peptone could promote the production of BC. Furthermore, the optimal KWH medium was determined through the Box-Behnken design as diluting KWH with distilled water at ratio of 1:0.8, adding 0.6% peptone, and adjusting initial pH to 5.5. The BC yield of 7.21 +/- 0.25 g L-1 was obtained when kombucha was cultivated using this medium at 28 degrees C for 7 days, which was higher than many reported BC yield also taking organic waste as alternative source. Property characterization indicated that the obtained BC film had typical microfiber network; its Young's modulus and tensile strength values were 3314.7 +/- 193.5 MPa and 106.9 +/- 25.6 MPa, respectively, and the water holding capacity value was 98.8%. In conclusion, this paper realized the high efficient conversion of kitchen waste to high-performance BC film, which will provide a technical reference for decreasing the producing cost of BC and a strategy for realizing the green and high-value utilization of KW.