一种低黏度、高透明型黄原胶膳食纤维的功能和理化特性  

THE FUNCTIONAL AND PHYSICOCHEMICAL PROPERTIES OF XANTHAN GUM DIETARY FIBER WITH LOW-VISCOSITY AND HIGH-TRANSPARENCY

作　　者：王子朝 吴剑荣[2] 杨利博 朱莉 郑志永[2] 高敏杰[2] 詹晓北[2] WANG Zichao;WU Jianrong;YANG Libo;ZHU Li;ZHENG Zhiyong;GAO Minjie;ZHAN Xiaobei(School of Biological Engineering,Henan University of Technology,Zhengzhou 450001,China;;School of Biotechnology,Jiangnan University,Wuxi 214122,China;College of Landscape and Ecological Engineering,Hebei University of Engineering,Handan 056021,China;Jiangsu Ruiguang Biotech Co.,Ltd.,Wuxi 214125,China)

机构地区：[1]河南工业大学生物工程学院,河南郑州450001 [2]江南大学生物工程学院,江苏无锡214122 [3]河北工程大学园林与生态工程学院,河北邯郸056021 [4]江苏瑞光生物科技有限公司,江苏无锡214125

出　　处：《河南工业大学学报（自然科学版）》2018年第5期63-68,共6页Journal of Henan University of Technology：Natural Science Edition

基　　金：国家自然科学基金项目(31171640);省属高校基本科研业务费专项资金项目(2017QNJH10);河南工业大学高层次人才基金项目(2017BS011)

摘　　要：黄原胶在食品和工业生产中应用很广,但是目前有关黄原胶作膳食纤维的应用研究却较少。通过测定一种新型黄原胶(低黏度、高透明)的持水力、膨胀力、持油力、阳离子交换能力等指标来评价其理化性质;同时,采用体外实验模拟人体胃和肠道p H环境下新型黄原胶对重金属离子和胆固醇的吸附去除能力。研究结果表明:新型黄原胶的持水力和膨胀力分别为(60.13±3.42)g/g和(10.52±1.08)m L/g;对饱和脂肪和不饱和脂肪均有吸附,吸附量分别为(2.13±0.35)g/g、(2.28±0.47)g/g;阳离子交换能力为(1.15±0.08)mmol/g;对胆酸钠吸附量随胆酸钠浓度增大而增加;在模拟胃(p H 2.0)和小肠(p H 7.0)环境下,对Cu^(2+)、Cd^(2+)、Pb^(2+)3种重金属离子和胆固醇吸附效果良好。新型黄原胶的这些特性,使其在预防和治疗便秘、肥胖、高血压、高血脂和心血管疾病等方面具有优良功效,可作为一种潜在膳食纤维原料或辅料。Xanthan gum is widely used in food and industrial production,but there are few studies on the xanthan gum used as dietary fiber.The objective of this work was to evaluate the physiochemical properties of new xanthan gum with low-viscosity and high-transparency by measuring the water-binding capacity,swelling capacity,oil holding capacity and cation exchange capacity.Moreover,the ability of this new xanthan on absorbing heavy metals and removing cholesterol was investigated under the simulated pH environment of human gastric and intestinal in vitro.The results showed that the water-binding capacity and swelling capacity of this new xanthan were(60.13±3.42)g/g and(10.52±1.08)mL/g,respectively;this new xanthan could both absorb saturated fat(2.13±0.35 g/g)and unsaturated fat(2.28±0.47 g/g);its cation exchange capacity was(1.15±0.08)mmol/g;the adsorption amount of cholic acid sodium increased with the increase of cholic acid sodium concentration.Meanwhile,this new xanthan had good effect on Cu2+,Cd2+,Pb2+and cholesterol absorption under the simulated conditions of stomach(pH 2.0)and small intestine(pH 7.0).The properties of the new xanthan make they have excellent effect on preventing and treating constipation,obesity,hypertension,hyperlipaemia and cardiovascular disease,which can be used as raw or auxiliary materials for dietary fiber.

关 键 词：黄原胶 膳食纤维 功能 理化特性 

分 类 号：TS201.2[轻工技术与工程—食品科学]