| 玉米芯可溶性膳食纤维制备及其抑菌活性 |
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| 引用本文： | 王磊,曹慧慧,杜瑞焕,宋晓楠,张立田,廖晨. 玉米芯可溶性膳食纤维制备及其抑菌活性[J]. 食品工业, 2020, 0(4): 25-28 |
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| 作者姓名： | 王磊 曹慧慧 杜瑞焕 宋晓楠 张立田 廖晨 |
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| 作者单位： | 唐山市食品药品综合检验检测中心;河北省农产品质量安全检测技术创新中心;唐山市功能性农产品产业技术研究院 |
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| 基金项目： | 河北省二期现代农业产业技术体系创新团队建设项目(HBCT2018120207);唐山市功能性农产品产业技术研究院(2019TY003b)。 |
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| 摘 要： | 以玉米芯为试验原料,采用响应面分析法(Response Surface Methodology,RSM)建立了动态高压微射流(DHPM)提取玉米芯中可溶性膳食纤维(SDF)得率的二次多项数学模型,验证了数学模型的有效性,并探讨了物料温度、均质时间和均质压力对SDF得率的作用规律,优化提取工艺参数。结果表明:物料温度50.0℃,均质时间6min,压力40 MPa,该条件下SDF提取率高达8.27%。DHPM-SDF对大肠杆菌、枯草芽孢杆菌、金黄色葡萄球菌和黑曲霉均具有一定的抑制效果,且抑菌作用随着浓度的增加而增强。
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| 关 键 词： | 玉米芯 可溶性膳食纤维 动态高压微射流 抑菌活性 |
Extraction of Soluble Dietary Fiber from Corn Cob and Its Bacteriostatic Activity |
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| WANG Lei,CAO Huihui,DU Ruihuan,SONG Xiaonan,ZHANG Litian,LIAO Chen. Extraction of Soluble Dietary Fiber from Corn Cob and Its Bacteriostatic Activity[J]. The Food Industry, 2020, 0(4): 25-28 |
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| Authors: | WANG Lei CAO Huihui DU Ruihuan SONG Xiaonan ZHANG Litian LIAO Chen |
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| Affiliation: | (Tangshan Food and Drug Comprehensive Testing Center,Tangshan 063000;Hebei Agricultural Products Quality and Safety Testing Innovation Center,Tangshan 063000;Tangshan Institute of Industrial Technology for Functional Agricultural Products,Tangshan 063000) |
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| Abstract: | Response surface methodology(RSM)was employed to optimize the process parameters of dynamic highpressure microfluidization(DHPM)extraction of SDF from corn cob.The adequacy of the model equation for predicting the optimum response values was verified effectively by the validation.The effects of materiel temperature,treatment time and pressure on yield of SDF were investigated.Maximum yield of SDF from the mathematical model was predicted to be 8.27%dry basis under the condition of temperature 50.0℃,time 6 min and 40 MPa.DHPM-SDF had obvious antimicrobial effect on experimental bacteria of Escherichia coli,Bacillus subtilis,Staphylococcus aureus and Aspergillus niger.Therefore,the bacteriostatic activity increased with the increase of concentration. |
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| Keywords: | corn cob soluble dietary fiber dynamic high-pressure microfluidization bacteriostatic activity |
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