Determination of Molar Substitution of γ‐Hydroxypropyl Starch

2020 ◽  
pp. 2000013
Author(s):  
Xue‐Li Liu ◽  
Kun Zhang ◽  
Yu Hu ◽  
Zhengjuan Zhang ◽  
Jun Chen ◽  
...  
Keyword(s):  
Molar Substitution ◽  
Hydroxypropyl Starch

Modification of PMR Spectroscopy Technique for Determination of the Molar Substitution in Hydroxyethyl Starch

2015 ◽  
Vol 49 (8) ◽  
pp. 559-563 ◽  
Author(s):  
N. E. Kuz’mina ◽  
S. V. Moiseev ◽  
V. I. Krylov ◽  
O. V. Knyaz’kina ◽  
V. A. Yashkir ◽  
...  
Keyword(s):  
Hydroxyethyl Starch ◽  
Spectroscopy Technique ◽  
Pmr Spectroscopy ◽  
Molar Substitution

scholarly journals Study on the properties of modified starch and its feasibility in crystal dumpling skins

2021 ◽  
Vol 30 ◽  
pp. 01010
Author(s):  
Wang Jingwen ◽  
Oksana Melnyk ◽  
Olha Ihnatieva
Keyword(s):  
Sodium Acetate ◽  
Reference Value ◽  
Cassava Starch ◽  
Light Transmittance ◽  
Modified Starches ◽  
Hydroxypropyl Starch ◽  
Starch Potato ◽  
Original Crystal

Four kinds of modified starches that are expected to improve the quality of crystal dumpling skins were selected, namely Potato acetate starch, Potato hydroxypropyl starch, Octenyl succinate starch sodium, Acetate cassava starch. Through the determination of the physical indicators of the above four modified starches, and then explore the feasibility of applying them to crystal dumpling skins to improve their quality. Studies have found that the light transmittance of the four modified starches is higher than that of the original crystal dumpling mixed starch, which verifies the feasibility of applying these four modified starches to the crystal dumpling skin to improve its transparency and other characteristics. At the same time, it provides a certain reference value for related research on improving the characteristics of crystal dumpling skin.

Colorimetric determination of the molar substitution of 2-hydroxybutyl and related starch ethers

1992 ◽  
Vol 17 (4) ◽  
pp. 313-318 ◽  
Author(s):  
R.E. Harry-O'Kuru ◽  
K.B. Moser ◽  
S.H. Gordon
Keyword(s):  
Colorimetric Determination ◽  
Molar Substitution

Determination of the Molar Substitution of Hydroxypropyl Celluloses by an NMR Method

1998 ◽  
Vol 31 (6) ◽  
pp. 1279-1285 ◽  
Author(s):  
Xu-jie Yang ◽  
Zheng-Hang Zhi ◽  
Lu-de Lu ◽  
Xin Wang
Keyword(s):  
Nmr Method ◽  
Molar Substitution

Determination of Chlorohydrins in Hydroxypropyl Starch Ethers

1971 ◽  
Vol 54 (5) ◽  
pp. 1093-1094
Author(s):  
K M Brobst ◽  
Han Tai
Keyword(s):  
Gas Chromatography ◽  
Acid Hydrolysis ◽  
Extraction Method ◽  
Ether Extraction ◽  
Sensitivity Level ◽  
Hydroxypropyl Starch

Abstract An acid hydrolysis procedure is described to liberate chlorohydrins from the starch matrix in the determination of chlorohydrins in hydroxypropyl starch. An ether extraction method is then used to isolate the chlorohydrins which are separated and determined by gas chromatography. The sensitivity level was 1 ppm and recovery was 90% at 5 ppm.

scholarly journals Analysis of Molar Substitution of Hydroxybutyl Group by Zeisel Reaction in Starch Ethers

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5509
Author(s):  
Xiao-Lei Man ◽  
Wei-Kang Peng ◽  
Jun Chen ◽  
Xue-Li Liu
Keyword(s):  
Gas Chromatography ◽  
Quantitative Analysis ◽  
Rapid Method ◽  
Molar Substitution

A new etherified starch, δ-hydroxybutyl starch (δ-HBS), was prepared by utilising 4-chlorobutan-1-ol as the etherifying reagent. The method of Zeisel gas chromatography for the determination of the molar substitution was described. This technique offers a simple and rapid method for quantitative analysis with reproducible results. Meanwhile, the mechanism of the Zeisel reaction was also investigated.

Determination of the molar substitution ratio of hydroxyethyl starches by gas chromatography

1983 ◽  
Vol 55 (2) ◽  
pp. 334-338 ◽  
Author(s):  
Ying Chi. Lee ◽  
David M. Baaske ◽  
James E. Carter
Keyword(s):  
Gas Chromatography ◽  
Substitution Ratio ◽  
Molar Substitution ◽  
Hydroxyethyl Starches

Determination of the molar substitution of cellulose ethers using proton magnetic resonance

1973 ◽  
Vol 45 (1) ◽  
pp. 186-188 ◽  
Author(s):  
Colin J. Clemett
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Cellulose Ethers ◽  
Molar Substitution

Isopiestic determination of the water activities and prediction of liquid–liquid equilibrium in polyethylene glycol+hydroxypropyl starch+water systems

1999 ◽  
Vol 162 (1-2) ◽  
pp. 159-170 ◽  
Author(s):  
Dong-Qiang Lin ◽  
You-Ting Wu ◽  
Zi-Qiang Zhu ◽  
Le-He Mei ◽  
Shan-Jing Yao
Keyword(s):  
Polyethylene Glycol ◽  
Water Systems ◽  
Liquid Equilibrium ◽  
Hydroxypropyl Starch
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