FOOD SCIENCE ›› 2017, Vol. 38 ›› Issue (14): 106-111.doi: 10.7506/spkx1002-6630-201714016

• Bioengineering • Previous Articles     Next Articles

Effect of Fermentation on Rheology of Apple Pomace Polysaccharides

JIA Feng, LIU Dong, GUO Yurong, LI Jie, SUN Jiaojiao, SU Fan   

  1. (College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China)
  • Online:2017-07-25 Published:2017-09-06

Abstract: The influences of concentration, temperature and storage time on the apparent viscosity and shear stress of apple pomace polysaccharide (APP), cider apple pomace polysaccharide (CAPP) and cider vinegar apple pomace polysaccharide (CVAPP) were studied in this research in order to elucidate the effect of fermentation on the rheology of APP. The results showed that APP, CAPP, and CVAPP were all pseudoplastic fluid, displaying a shear thinning behavior. Both CAPP and CVAPP exhibited significantly lower viscosity with decreased concentration dependence and enhanced temperature resistance as well as resistance within a period of time. The rheology of all three polysaccharides changed little during 3 days of storage. Both CAPP and CVAPP were superior to APP in term of processing characteristics to a certain extend.

Key words: fermentation, apple pomace, polysaccharides, rheology pseudoplastic fluid

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