Ag-SiO2-TiO2纳米包装对新鲜绿竹笋储藏品质的影响  

Effect of Ag-SiO2-TiO2 nano-packaging on storage quality of fresh bamboo shoots

作　　者：张冬梅 王素雅[1,2,3] 杨茉 王瓅[1,2,3] 周芹芹 ZHANG Dongmei;WANG Suya;YANG Mo;WANG Li;ZHOU Qinqin((College of Food Science and Engineering,Nanjing University of Finance and Economics,Nanjing 210023,China;Collaborative Innovation Center for Modern Grain Circulation and Safety,Nanjing 210023,China;Key Laboratory of Grains and Oils Quality Control and Processing,Nanjing 210023,China)

机构地区：[1]南京财经大学食品科学与工程学院,江苏南京210023 [2]江苏省现代粮食流通与安全协同创新中心,江苏南京210023 [3]江苏高校粮油质量安全控制及深加工重点实验室,江苏南京210023

出　　处：《食品与发酵工业》2020年第15期147-153,共7页Food and Fermentation Industries

基　　金：“十三五”国家重大研发计划(2016YFD060090304);江苏高校优势学科建设工程资助项目(PAPD);江苏省研究生科研与实践创新计划项目(KYCX18_1431)。

摘　　要：在4℃,相对湿度85%条件下,以感官评分初步评判绿竹笋的储藏期限,结合亮度,失重率,呼吸强度,总酸,纤维素含量,木质素含量,亚硝酸盐含量及微生物数量等指标评价保鲜效果。结果表明:无包装绿竹笋储藏期为12 d,普通真空包装绿竹笋的储藏期为16 d,纳米真空包装的绿竹笋可储藏20 d。储藏第20天时,Ag-SiO 2-TiO 2纳米包装绿竹笋的感官评分为75.25分,亮度值为86.85,总酸含量为0.54 g/kg,纤维素含量为2.96 mg/g,木质素含量为0.72 mg/g。在4℃条件下,纳米真空包装处理可以保证绿竹笋的良好感官品相和可食用性,延长绿竹笋的储藏期限。因此,Ag-SiO 2-TiO 2纳米材料真空包装处理是一种良好的绿竹笋贮藏保鲜方法。This study explored the effect of Ag-SiO 2-TiO 2 nano-packaging bag on the storage quality of fresh bamboo shoots.The storage period of green bamboo shoots was preliminarily determined by sensory scores.The preservation effect was judged by brightness,weight loss rate,respiratory rate,total acid,cellulose content,lignin content,nitrite content and microorganism quantity.The results showed that the storage period of green bamboo shoots was 12 days(CK),16 days(ordinary vacuum packaging)and 20 days(nano vacuum packaging),respectively.On the 20th day,the sensory score of green bamboo shoots packaged with nano Ag-SiO 2-TiO 2 was 75.25,the brightness value was 86.85,the total acid content was 0.54 g/kg,the cellulose content was 2.96 mg/g,the lignin content was 0.72 mg/g.Ag-SiO 2-TiO 2 nano-material has the characteristics of low oxygen permeability and bacteriostasis.At 4℃,vacuum nano-packaging could ensure the good sensory appearance and edible quality of bamboo shoots,and extend the storage period of green bamboo shoots.Therefore,the vacuum packaging with Ag-SiO 2-TiO 2 nanomaterial is a good method for bamboo shoots preservation.

关 键 词：新鲜绿竹笋 Ag-SiO 2-TiO 2 纳米包装袋 储藏品质 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]