Comparison of the Chemical Composition and Physicochemical Properties of Different Fibers Prepared from the Peel of Citrus sinensis L. Cv. Liucheng

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• 作者：Chi-Fai Chau and Ya-Ling Huang
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2003
• 出版时间：April 23, 2003
• 年：2003
• 卷：51
• 期：9
• 页码：2615 - 2618
• 全文大小：45K
• 年卷期：v.51,no.9(April 23, 2003)
• ISSN：1520-5118

文摘

Fiber-rich fractions (FRFs) including soluble and insoluble dietary fibers (SDF and IDF), alcohol-insoluble solid (AIS), and water-insoluble solid (WIS) were isolated from the peel of Citrus sinensisL. cv. Liucheng for analysis and tests. The peel was rich in insoluble FRFs (IDF, AIS, and WIS;476-515 g kg^-1 of peel), which were mainly composed of pectic substances and cellulose, and alsocontained pectic polysaccharide-rich SDF (94.1 g kg^-1 of peel). These insoluble FRFs had water-holding capacities (15.5-16.7 mL g^-1), oil-holding capacities (2.35-5.09 g g^-1), cation-exchangecapacities (454-997 mequiv kg^-1), and swelling properties (14.6-21.1 mL g^-1) much higher thanthose of cellulose. These results recommended the consumption of these peel insoluble FRFs ofdesired physicochemical properties as sources of food fibers or low-calorie bulk ingredients in foodapplications requiring oil and moisture retention. Further investigations on the physiological functionsof these peel FRFs using animal-feeding experiments are underway.Keywords: Dietary fiber; alcohol-insoluble solid; water-insoluble solid; fiber-rich fractions; composition;physicochemical properties; Citrus sinensis L. cv. Liucheng; peel