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Updated: May 11, 2026
OLIgo Mass Profiling OLIMP of Extracellular Polysaccharides
Published on: June 20, 2010
Preparation, Structural Analysis, and Growth-Promoting Effects of Amomum longiligulare Polysaccharide 1-Mg (II)
Yijing Chen1, Haowen Wu1, Chenglong Zhang1
1Sanya Institute of Breeding and Multiplication, School of Tropical Agriculture and Forestry, Hainan University, Sanya, 572025, P. R. China.
Abstract:
In this study, Amomum longiligulare polysaccharide 1 (ALP1) is used to chelate with magnesium (Mg) to synthesize the ALP1-Mg (II) complex (ALP1-Mg). Based on Box-Behnken response surface design, the optimum technological conditions are 22 mg mL-1 trisodium citrate, 2.10 mol L-1 MgCl2, reaction at 70 °C for 2.9 h, resulting in a maximum Mg content of 2.13%. Next, the physicochemical properties and structural characteristics of ALP1 and ALP1-Mg are characterized, and the results show that the morphology, conformation, crystallinity, and thermal stability of ALP1-Mg are changed. In addition, dietary supplementation of 500 mg kg-1 ALP1-Mg significantly reduces the feed conversion ratio during the grower (15-35 d). Meanwhile, the villus height/crypt depth of the duodenum and ileum are significantly increased, and the relative abundance of Lactobacillus is significantly elevated. Taken together, the results suggest that ALP1-Mg is a potential growth-promoting feed additive.
