菊芋残渣中纤维素的提取、表征及其在蓝莓保鲜中的应用

Extraction and Characterization of Cellulose from Jerusalem Artichoke Residue and Its Application in Blueberry Preservation.

作者信息

Zhou Xiaotong, Liu Liu, Li Jianke, Wang Lin, Song Xueying

机构信息

College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China.

Key Laboratory of Food Processing Byproducts for Advanced Development and High Value Utilization, Shaanxi Normal University, Xi'an 710119, China.

出版信息

Foods. 2022 Apr 7;11(8):1065. doi: 10.3390/foods11081065.

DOI:10.3390/foods11081065

PMID:35454652

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9031470/

Abstract

The utilization of industrial by-products is becoming more and more important for resource utilization. In this study, soluble dietary fiber (SDF) was extracted from Jerusalem artichoke residue, and a series of characterizations of SDF were carried out. The results showed that SDF had good properties. SDF (0%, 0.1%, 0.2%, 0.3%, and 0.4%) and chitosan (2%) were further used to prepare the coating that was used for the preservation of blueberry. The chemical structure of the film was obtained by FT-IR and XRD analysis. The microstructure of the film was analyzed by SEM, and the properties of the film were tested. The blueberry fresh-keeping test proved that the SDF-added film could effectively prolong the quality of blueberries in storage for 16 days. After 16 days of storage, compared with the control group, the decay rate of the coating group with 0.2% SDF decreased by 16.3%, the consumption of organic acids decreased by 43.7%, and the content of anthocyanin increased by 29.3%. SDF has a potential application in food preservation.

摘要

工业副产品的利用对于资源利用正变得越来越重要。在本研究中，从菊芋残渣中提取了可溶性膳食纤维（SDF），并对SDF进行了一系列表征。结果表明SDF具有良好的性能。进一步使用SDF（0%、0.1%、0.2%、0.3%和0.4%）和壳聚糖（2%）制备用于蓝莓保鲜的涂层。通过傅里叶变换红外光谱（FT-IR）和X射线衍射（XRD）分析获得了薄膜的化学结构。通过扫描电子显微镜（SEM）分析了薄膜的微观结构，并测试了薄膜的性能。蓝莓保鲜试验证明，添加SDF的薄膜可有效延长蓝莓在储存期16天的品质。储存16天后，与对照组相比，添加0.2%SDF的涂层组的腐烂率降低了16.3%，有机酸消耗量降低了43.7%，花青素含量增加了29.3%。SDF在食品保鲜方面具有潜在应用价值。