建阳桔柚皮渣中膳食纤维提取工艺优化及理化性质分析  

Optimization of Dietary Fiber Extraction Process and Analysis of Physicochemical Property from Jianyang Tangelo Peel Residue

作　　者：纪颖[1,2] 吕峰[2] 林燕燕[1] 黄清秀 JI Ying;LV Feng;LIN Yanyan;HUANG Qingxiu(Fujian Forestry Vocational Technical College,Nanping,Fujian 353000;College of Food Science,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002)

机构地区：[1]福建林业职业技术学院,福建南平353000 [2]福建农林大学食品科学学院,福建福州350002

出　　处：《武夷学院学报》2020年第3期11-15,共5页Journal of Wuyi University

基　　金：福建省南平市自然基金项目(2019J09);福建省教育厅教育科研项目(JA13390);南平市科学技术协会科技智库研究项目。

摘　　要：以建阳桔柚皮渣为原料,采用化学法提取建阳桔柚皮渣中的膳食纤维。在单因素试验基础上,采用正交试验优化提取工艺,得出最佳工艺参数为:提取液pH值0.6、料液比1∶35、反应温度80℃、提取时间50 min,在此提取工艺条件下,建阳桔柚皮渣膳食纤维提取率达到22.5%。理化性质测定结果显示,建阳桔柚皮渣中提取出的膳食纤维持水力为18.16 g/g,膨胀力为3.42 mL/g,乳化能力为39.29%,乳化稳定性为81.82%,吸附脂肪酸能力为2.19 g/g,这说明建阳桔柚皮渣膳食纤维可作为天然食品添加剂或保健食品原料,具有较好的发展前景。Using Jianyang Tangelo peel residue as material,the dietary fiber from Jianyang Tangelo peel residue was extracted by chemical extraction.Based on single factor experiment,the optimum technology was obtained with the orthogonal test.The optimal extracting conditions were determind as follows:extraction pH 0.6,solid-liquid ratio 1∶35,extraction temperature 80℃,extraction time 50 min.Under the condition of this extraction process,the extraction yield of dietary fiber was 22.5%.The physicochemical property results showed that the water-holding capacity of dietary fiber from Jianyang Tangelo peel residue was 18.16 g·g^-1,the expansion capacity was 3.42mL·g^-1,the emulsifying capacity was 39.29%,the emulsion stability capacity was 81.82%,and the adsorption abilities for fatty acid was 2.19 g·g^-1.The analysis result showed that the dietary fiber from Jianyang Tangelo peel residue can be used as a natural food additive or health food raw material,and it has a good development prospect.

关 键 词：建阳桔柚皮渣 膳食纤维 提取 理化性质 

分 类 号：TS209[轻工技术与工程—食品科学]