Blanching of red beet (Beta vulgaris L. var. conditiva) root. Effect of hot water or microwave radiation on cell wall characteristics

被引:51
作者
Emilia Latorre, Maria [1 ,2 ]
de Escalada Pla, Marina Francisca [1 ,2 ]
Maria Rojas, Ana [1 ,2 ]
Noemi Gerschenson, Lia [1 ,2 ]
机构
[1] UBA, Nat & Exact Sci Sch, Dept Ind, RA-1428 Buenos Aires, DF, Argentina
[2] Natl Sci & Tech Res Council Argentina CONICET, Buenos Aires, DF, Argentina
关键词
Red beet; Blanching; Microwave; Cell wall; Microstructure; DIETARY FIBER; POLYSACCHARIDE COMPOSITION; MECHANICAL-PROPERTIES; TEXTURE; PEROXIDASE; CHEMISTRY; POTATOES; CARROT; ACID; INACTIVATION;
D O I
10.1016/j.lwt.2012.06.004
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The effect of enzymes inactivation through traditional (water, 90 degrees C) and microwave blanching (constant power of 350 W and changing power with values higher than 900W) on cell wall polysaccharides as well as on microstructure of beet root tissue was studied with the goal of attaining a better understanding of the changes produced by treatment and its consequences on the functional properties of cell wall polymers. Powers higher than 900 W produced greater tissue microstructural damage due to alteration of the cell wall network. The contact between neighboring cells persisted after microwave treatment at 350 W while traditional blanching or blanching at higher microwave powers (90MW) produced separation of the middle lamella at different points and also cell separation was observed for the last mentioned treatment. The formation of entanglements of pectin-in-extensin in 350 W-treated beet root and the higher content of calcium and diferulated cross linked pectins in the case of traditional treatment may account for the better mechanical performance observed for these tissues. The microwaving at 350 W modified the cell wall polymers in such a manner that produced an increase in their hydrophilicity. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:193 / 203
页数:11
相关论文
共 64 条
  • [61] A rapid selection strategy for an anodophilic consortium for microbial fuel cells
    Wang, Aijie
    Sun, Dan
    Ren, Nanqi
    Liu, Chong
    Liu, Wenzong
    Logan, Bruce E.
    Wu, Wei-Min
    [J]. BIORESOURCE TECHNOLOGY, 2010, 101 (14) : 5733 - 5735
  • [62] The mechanical properties and molecular dynamics of plant cell wall polysaccharides studied by Fourier-transform infrared spectroscopy
    Wilson, RH
    Smith, AC
    Kacuráková, M
    Saunders, PK
    Wellner, N
    Waldron, KW
    [J]. PLANT PHYSIOLOGY, 2000, 124 (01) : 397 - 405
  • [63] DETERMINATION OF METHANOL AND ITS APPLICATION TO MEASUREMENT OF PECTIN ESTER CONTENT AND PECTIN METHYL ESTERASE ACTIVITY
    WOOD, PJ
    SIDDIQUI, IR
    [J]. ANALYTICAL BIOCHEMISTRY, 1971, 39 (02) : 418 - &
  • [64] Yamaguchi T., 2001, Food Science and Technology Research, V7, P250, DOI 10.3136/fstr.7.250