粒度大小对姜渣膳食纤维功能特性的影响

Effect of Particle Size on the Functional Characteristics of Dietary Fiber from Ginger Slag

明确粒度大小对姜渣膳食纤维功能特性的影响,为姜渣膳食纤维的综合利用提供理论依据。以不同粒度(60,80,100目)的姜渣膳食纤维为研究对象,以姜渣原料为对照,测定其对胆固醇和胆酸钠的吸附性、阳离子交换能力、酶活性抑制力、DPPH·自由基清除能力等,对比分析粒度大小对其功能特性的影响。研究结果表明:与姜渣相比,姜渣膳食纤维具有较好的功能特性;随着姜渣膳食纤维粒度的减小,其对胆固醇的吸附性、阳离子交换能力、酶活性抑制力、DPPH·自由基清除力都逐渐增强(P<0.05)。该研究为姜渣膳食纤维的进一步应用研究提供了理论参考。

Definitude the effect of particle size on the functional characteristics of dietary fiber from ginger slag,which has provided the theoretical basis for the comprehensive utilization of dietary fiber from ginger slag.With different particle sizes（60,80,100 meshes）as the research object,the ginger residue dietary fiber is controlled with ginger slag,determine its adsorption of cholesterol and cholic acid sodium,cation exchange capacity,enzyme activity inhibition,DPPH·radical scavenging ability,compare and analyze the particle size on its features.The results show that compared with ginger slag,the dietary fiber from ginger slag has better functional properties.With the decrease of particle size of dietary fiber from ginger slag,its adsorption,cation exchange capacity,enzyme activity inhibition and DPPH·radical scavenging ability are gradually enhanced（P0.05）.This study has provided a theoretical reference for further application of dietary fiber from ginger slag.