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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2013, Vol. 39 Issue (2): 149-154    DOI: 10.3785/j.issn.1008-9209.2012.11.065
论文     
油茶蒲中不溶性膳食纤维的提取及其特性分析
谢勇*， 陈诗强， 池香莲， 梁一池
福建中医药大学药学院，福州350122
Extraction of insoluble dietary fiber from hull of Camellia oleifera Abel and its physicochemical properties
Xie Yong*, Chen shiqiang, Chi Xianglian, Liang yichi
School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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摘要： 采用化学法提取油茶蒲中的不溶性膳食纤维，对其提取工艺条件进行优化，并对油茶蒲膳食纤维含量和持水力、膨胀力等特性进行研究. 结果表明：用碱提取法获得油茶蒲不溶性膳食纤维的最佳工艺条件为料液比1∶14，氢氧化钠浓度0.35 mol/L，在80 ℃条件下反应3 h；在此工艺条件下油茶蒲不溶性膳食纤维的提取率为40.4％，纯度达91.52％；油茶蒲不溶性膳食纤维的持水力为2.04 g/g，膨胀力为1.2 mL/g，其在一般食品体系（pH值、蔗糖浓度、盐分或防腐剂）条件下较为稳定. 表明油茶蒲不溶性膳食纤维是一种含量丰富且具有较好特性的可利用资源.
Abstract: The fruit shell of Camellia oleifera Abel is the byproduct in C. oleifera processing, which is greatly wasted by abandoned or burnt in actual production. In recent years, some studies indicated that the fruit shell of C. oleifera had some biological activity such as antioxidant activity, indicating that the fruit shell components can be further exploited as some food additive or taken as some raw material of industry. Insoluble dietary fiber (IDF) in the fruit shell of C. oleifera has various physiological functions against some diseases, such as diabete, cardiovascular disease, intestine cancer, constipation etc., which give it higher health care value and dual performance in economy and society. In order to turn the waste residue of C. oleifera into wealth and dietary fibercontaining functional food, IDF from the wasted part of the shell was extracted with alkali treatment, and the optimal extraction condition and physicochemical properties were studied. The results showed that: 1) After investigating the single factor influencing the extraction yield, the optimal point for each factor was as follows: 0.35 mol/L for the concentration of sodium hydroxide, 80 ℃ for extraction temperature, 2 hours for extraction duration and 1∶18 for the ratio of solid to liquid. 2) Through orthogonal experiment, the optimal extraction condition of IDF was as follows: the ratio of solid to liquid of 1∶14, sodium hydroxide of 0.35 mol/L with the reaction at 80 ℃ for 3 h. The influential order of each factor on the IDF extraction was alkali concentration > solidliquid ratio > temperature > extraction time. Under this optimal condition, the extraction yield of IDF from C. oleifera shell was 40.4% and the purity was 91.52%. 3) The water holding capacity of IDF from C. oleifera shell was 2.04 g/g and the degree of swell was 1.2 mL/g. Meanwhile, the physicochemical properties of IDF were quite stable in the normal food system with different conditions of pH, sugar, salt or preservative. In conclusion, the shell from C. oleifera contains rich dietary fiber, and the IDF is quite stable in normal food system. It is worth developing food additive products by adding IDF extraction in the future food production development.
出版日期: 2013-03-20
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谢勇*
陈诗强
池香莲
梁一池

引用本文:

谢勇*， 陈诗强， 池香莲， 梁一池. 油茶蒲中不溶性膳食纤维的提取及其特性分析[J]. 浙江大学学报(农业与生命科学版), 2013, 39(2): 149-154.

Xie Yong*, Chen shiqiang, Chi Xianglian, Liang yichi. Extraction of insoluble dietary fiber from hull of Camellia oleifera Abel and its physicochemical properties. Journal of Zhejiang University (Agriculture and Life Sciences), 2013, 39(2): 149-154.

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http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2012.11.065    或    http://www.zjujournals.com/agr/CN/Y2013/V39/I2/149

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