Comparison of physicochemical properties of B-type nontraditional starches from different sources

Published Date
July 2015, Vol.78:165–172, doi:10.1016/j.ijbiomac.2015.04.006

Title 
Comparison of physicochemical properties of B-type nontraditional starches from different sources

• Author 

• Jun Huang ^a
• Lingxiao Zhao ^a
• Jianmin Man ^a
• Juan Wang ^a
• Weidong Zhou ^b
• Huyin Huai ^a
• Cunxu Wei ^a,,

• aJiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
• bTesting Center, Yangzhou University, Yangzhou 225009, China

Received 17 March 2015. Revised 29 March 2015. Accepted 5 April 2015. Available online 11 April 2015.

Abstract

Starches were isolated from rhizomes of Curcuma longa, Canna edulis and Canna indica and bulbs of Lilium lancifolium, and showed a B-type X-ray diffraction pattern. Their physicochemical properties were investigated and compared. These starches showed significantly different granule morphologies and sizes, but all had eccentric hila. The C. longa starch had the lowest content of amylopectin short branch-chain and branching degree and the highest content of amylopectin long branch-chain, and the L. lancifolium starch the highest content of amylopectin short branch-chain and branching degree and the lowest content of amylopectin long branch-chain among the four starches. The L. lancifolium starch had the lowest resistance to gelatinization, and showed the lowest pasting peak, hot and final viscosities, and the C. longa starch had the highest resistance to gelatinization, and showed the highest pasting hot, final and setback viscosities and the lowest pasting breakdown viscosity. The C. longa and L. lancifolium starches possessed very high and low resistance to hydrolysis and digestion, respectively. The above physicochemical properties would be useful for the applications of B-type starches in food and nonfood industries.

Abbreviations

AAG, Aspergillus niger amyloglucosidase

ATR-FTIR, attenuated total reflectance-Fourier transform infrared

DSC, differential scanning calorimetry

GPC, gel permeation chromatography

PPA, porcine pancreatic α-amylase

RDS, rapidly digestible starch

RS, resistant starch

RVA, rapid visco analyzer

SDS, slowly digestible starch

XRD, X-ray powder diffraction.

Keywords

B-type starch

Physicochemical properties

Curcuma longa L.

Canna edulis Ker.

Canna indica L.

Lilium lancifolium Thunb.

---

Fig. 1.

 Table 1

Table 1.

Fig. 2.

 Table 2

Table 2.

Fig. 3.

 Table 3

Table 3.

Fig. 4.

 Table 4

Table 4.

• ⁎ 
  Corresponding author at: College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China. Tel.: +86 514 87997217.

For further details log on website :
http://www.sciencedirect.com/science/article/pii/S014181301500241X