Structural and Emulsifying Properties of Citric Acid Extracted Satsuma Mandarin Peel Pectin

Autor: Xingke Duan, Zhixuan Yang, Jinyan Yang, Fengxia Liu, Xiaoyun Xu, Siyi Pan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Foods, Vol 10, Iss 10, p 2459 (2021)
Druh dokumentu: article
ISSN: 2304-8158
DOI: 10.3390/foods10102459
Popis: Satsuma mandarin peel pectin (MPP) was extracted by citric acid and its structure and emulsifying ability were evaluated. Structural characterization, including NMR, FTIR, monosaccharide compositions demonstrated that MMP showed lower DM value and higher Mw than commercial citrus pectin (CCP). In addition, MPP exhibited significantly better emulsification performance than CCP. When MPP concentration was increased to 1%, 1.5% (10 g/L, 15 g/L) and the pH was 3 (acidic condition), a stable emulsion containing 10% oil fraction could be obtained. The particle size of the obtained emulsion was ranging from 1.0–2.3 μm, its emulsifying activity ranged from 93–100% and emulsifying stability was 94–100%. Besides, MPP can better ensure the storage stability of higher oil ratio emulsions. The results demonstrated that the stable emulsifying properties of MPP may largely depend on the lower DM value and higher Mw. MPP could be used as a novel polysaccharide emulsifier, especially under acidic conditions, providing a promising alternative for natural emulsifiers that could be used in the food industry.
Databáze: Directory of Open Access Journals