海南15种野生蔬菜膳食纤维含量的测定

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英文篇名：Determination of Dietary Fiber of 15 Wild Vegetables in Hainan Island 作者：邓爱妮 ; 周聪 ; 赵敏 ; 范琼 英文作者：DENG Aini;ZHOU Cong;ZHAO Min;FAN Qiong;Analysis & Testing Center,Chinese Academy of Tropical Agricultural Sciences/Quality Supervision and Inspection Center of Tropical Agro-Products,Ministry of Agriculture; 关键词：野生蔬菜 ; 膳食纤维 ; 蛋白酶 ; 超声波 英文关键词：Wild vegetable;;dietary fiber;;protease;;ultrasound 中文刊名：RDZX 英文刊名：Chinese Journal of Tropical Crops 机构：中国热带农业科学院分析测试中心农业部热带农产品质量监督检验测试中心; 出版日期：2017-08-25 出版单位：热带作物学报 年：2017 期：v.38 基金：海南省自然科学基金(No.214036);; 海南省科技项目(No.ZDXM2014135) 语种：中文; 页：RDZX201708029 页数：5 CN：08 ISSN：46-1019/S 分类号：183-187

摘要

以国家标准GB 5009.88-2014《食品中膳食纤维的测定》为基础,研究了4种蛋白酶、2种酶解辅助处理方法对膳食纤维测定值的影响。以调整后的方法测定了15种野生蔬菜总的、可溶性及不溶性膳食纤维的含量,分析了不同产地和采摘时期野生蔬菜总膳食纤维含量的差异。结果表明:木瓜蛋白酶处理后的树仔菜总膳食纤维测定值最高;超声波振荡辅助酶解处理的除杂效果较好;15种野生蔬菜膳食纤维含量和组成差异较大,产地对树仔菜、马齿苋总膳食纤维含量的影响分别为极显著、显著,但是对枸杞菜和雷公菜总膳食纤维含量的影响不显著;采摘时期对树仔菜、马齿苋、枸杞菜和雷公菜总膳食纤维含量均有极显著影响。
        The sample pretreatment conditions including different proteases and assisted enzymatic methods for dietary fiber determination were established according to the Chinese National Standard GB 5009.88-2014《Determination of dietery fiber in foods》.The total dietary fiber(TDF),insoluble dietary fiber(IDF) and soluble dietary fiber(SDF) in 15 wild vegetable samples collected from Hainan were analyzed using the modified method.The effects of different production area and harvest time on TDF content in 4 wild vegetable samples were analyzed.The results showed that papain treatmeat could improve the TDF content than other proteases.Ultrasonic assisted treatment removed impurities effectively and thus impurity content in TDF was lower.The contents and components of dietary fiber exhibited great difference within different wild vegetables.The difference of TDF contents of sauropus androgynus L.Merr collected from different production areas was significantly different,and that for Centella asiatica(L.) Urban was significant.There was no significant correlation between production areas and TDF content of Lycium chinense and Portulaca oleracea L..The harvested time presented significantly different effects to the TDF content of Sauropus androgynus L.Merr,Portulaca oleracea L.,Lycium chinense and Centella asiatica(L.) Urban.

引文

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