Development and evaluation of methods for starch dissolution using asymmetrical flow field-flow fractionation. Part II: Dissolution of amylose.
(2016) In Analytical and Bioanalytical Chemistry 408(5). p.1399-1412- Abstract
- In this paper, we investigate whether dissolution in water under autoclaving conditions (140 °C, 20 min) or in dimethyl sulfoxide, DMSO (100 °C, 1 h), is preferable for characterization of amylose. Two types of amylose, potato and maize, were dissolved either in water using an autoclave or in DMSO. On the aqueous solutions obtained, the extent of molecular dissolution of the sample (referred to as the dissolution yield) was determined by enzymatic analysis as well as the molecular properties, such as molar mass and root-mean-square radius, obtained with asymmetrical flow field-flow fractionation coupled to multi-angle light scattering and differential refractive index detection (AF4-MALS-dRI). The results showed that both dissolution... (More)
- In this paper, we investigate whether dissolution in water under autoclaving conditions (140 °C, 20 min) or in dimethyl sulfoxide, DMSO (100 °C, 1 h), is preferable for characterization of amylose. Two types of amylose, potato and maize, were dissolved either in water using an autoclave or in DMSO. On the aqueous solutions obtained, the extent of molecular dissolution of the sample (referred to as the dissolution yield) was determined by enzymatic analysis as well as the molecular properties, such as molar mass and root-mean-square radius, obtained with asymmetrical flow field-flow fractionation coupled to multi-angle light scattering and differential refractive index detection (AF4-MALS-dRI). The results showed that both dissolution methods are efficient at dissolving amylose. However, AF4-MALS-dRI analysis revealed substantial differences. Amylose aqueous solutions obtained by dissolution in DMSO were relatively stable over time, but the dissolution method in autoclave caused some degradation of the molecules, and their solutions display a high tendency to retrograde. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7845046
- author
- Pérez, Daysi LU ; Bergenståhl, Björn LU and Nilsson, Lars LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Analytical and Bioanalytical Chemistry
- volume
- 408
- issue
- 5
- pages
- 1399 - 1412
- publisher
- Springer
- external identifiers
-
- pmid:26232931
- wos:000368815200012
- scopus:84955643296
- pmid:26232931
- ISSN
- 1618-2642
- DOI
- 10.1007/s00216-015-8894-9
- language
- English
- LU publication?
- yes
- id
- 758bc0a4-47fe-4963-8cbc-db3629d4f871 (old id 7845046)
- date added to LUP
- 2016-04-01 09:56:22
- date last changed
- 2023-11-09 08:00:51
@article{758bc0a4-47fe-4963-8cbc-db3629d4f871, abstract = {{In this paper, we investigate whether dissolution in water under autoclaving conditions (140 °C, 20 min) or in dimethyl sulfoxide, DMSO (100 °C, 1 h), is preferable for characterization of amylose. Two types of amylose, potato and maize, were dissolved either in water using an autoclave or in DMSO. On the aqueous solutions obtained, the extent of molecular dissolution of the sample (referred to as the dissolution yield) was determined by enzymatic analysis as well as the molecular properties, such as molar mass and root-mean-square radius, obtained with asymmetrical flow field-flow fractionation coupled to multi-angle light scattering and differential refractive index detection (AF4-MALS-dRI). The results showed that both dissolution methods are efficient at dissolving amylose. However, AF4-MALS-dRI analysis revealed substantial differences. Amylose aqueous solutions obtained by dissolution in DMSO were relatively stable over time, but the dissolution method in autoclave caused some degradation of the molecules, and their solutions display a high tendency to retrograde.}}, author = {{Pérez, Daysi and Bergenståhl, Björn and Nilsson, Lars}}, issn = {{1618-2642}}, language = {{eng}}, number = {{5}}, pages = {{1399--1412}}, publisher = {{Springer}}, series = {{Analytical and Bioanalytical Chemistry}}, title = {{Development and evaluation of methods for starch dissolution using asymmetrical flow field-flow fractionation. Part II: Dissolution of amylose.}}, url = {{http://dx.doi.org/10.1007/s00216-015-8894-9}}, doi = {{10.1007/s00216-015-8894-9}}, volume = {{408}}, year = {{2016}}, }