Exploratory studies on the carboxymethylation of cassava starch in water-miscible organic media

Jie Yao; Hong You; Zheng Bao; Klaassien J. Ganzeveld; Jan Henk Marsman; Hero J. Heeres; Wen Ren Chen

Exploratory studies on the carboxymethylation of cassava starch in water-miscible organic media

Jie Yao^*
, Hong You
, Zheng Bao
, Klaassien J. Ganzeveld
, Jan Henk Marsman
, Hero J. Heeres
, Wen Ren Chen

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology
University of Groningen
Yuan Ze University

Research output: Contribution to journal › Article › peer-review

Abstract

The carboxymethylation of cassava starch using sodium monochloroacetate (SMCA) as an etherification agent was investigated. Factors that affected the process of chemical modification of cassava starch, including the type of solvents, the mass percentage of water in the reaction medium, the mass percentage of starch, the molar ratio of NaOH to SMCA, the theoretical DS (DS_t), and the temperature were investigated experimentally. The optimum conditions for this etherification reaction were a reaction medium consisting of about 10% of water, a reaction temperature between 50°C and 55°C and a starch mass percentage between 4%-8%. When applying these conditions in combination with a DS_t of 2.5, granular modified cassava starch with a DS of 1.4 can be obtained.

Original language	English
Pages (from-to)	1108-1112
Number of pages	5
Journal	Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume	37
Issue number	8
State	Published - Aug 2005

Keywords

Carboxymethylation
Cassava starch
Organic media

Cite this

@article{628369cc0961404c8a137283ca864789,

title = "Exploratory studies on the carboxymethylation of cassava starch in water-miscible organic media",

abstract = "The carboxymethylation of cassava starch using sodium monochloroacetate (SMCA) as an etherification agent was investigated. Factors that affected the process of chemical modification of cassava starch, including the type of solvents, the mass percentage of water in the reaction medium, the mass percentage of starch, the molar ratio of NaOH to SMCA, the theoretical DS (DSt), and the temperature were investigated experimentally. The optimum conditions for this etherification reaction were a reaction medium consisting of about 10\% of water, a reaction temperature between 50°C and 55°C and a starch mass percentage between 4\%-8\%. When applying these conditions in combination with a DSt of 2.5, granular modified cassava starch with a DS of 1.4 can be obtained.",

keywords = "Carboxymethylation, Cassava starch, Organic media",

author = "Jie Yao and Hong You and Zheng Bao and Ganzeveld, \{Klaassien J.\} and Marsman, \{Jan Henk\} and Heeres, \{Hero J.\} and Chen, \{Wen Ren\}",

year = "2005",

month = aug,

language = "英语",

volume = "37",

pages = "1108--1112",

journal = "Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology",

issn = "0367-6234",

publisher = "Harbin Institute of Technology",

number = "8",

}

TY - JOUR

T1 - Exploratory studies on the carboxymethylation of cassava starch in water-miscible organic media

AU - Yao, Jie

AU - You, Hong

AU - Bao, Zheng

AU - Ganzeveld, Klaassien J.

AU - Marsman, Jan Henk

AU - Heeres, Hero J.

AU - Chen, Wen Ren

PY - 2005/8

Y1 - 2005/8

N2 - The carboxymethylation of cassava starch using sodium monochloroacetate (SMCA) as an etherification agent was investigated. Factors that affected the process of chemical modification of cassava starch, including the type of solvents, the mass percentage of water in the reaction medium, the mass percentage of starch, the molar ratio of NaOH to SMCA, the theoretical DS (DSt), and the temperature were investigated experimentally. The optimum conditions for this etherification reaction were a reaction medium consisting of about 10% of water, a reaction temperature between 50°C and 55°C and a starch mass percentage between 4%-8%. When applying these conditions in combination with a DSt of 2.5, granular modified cassava starch with a DS of 1.4 can be obtained.

AB - The carboxymethylation of cassava starch using sodium monochloroacetate (SMCA) as an etherification agent was investigated. Factors that affected the process of chemical modification of cassava starch, including the type of solvents, the mass percentage of water in the reaction medium, the mass percentage of starch, the molar ratio of NaOH to SMCA, the theoretical DS (DSt), and the temperature were investigated experimentally. The optimum conditions for this etherification reaction were a reaction medium consisting of about 10% of water, a reaction temperature between 50°C and 55°C and a starch mass percentage between 4%-8%. When applying these conditions in combination with a DSt of 2.5, granular modified cassava starch with a DS of 1.4 can be obtained.

KW - Carboxymethylation

KW - Cassava starch

KW - Organic media

UR - https://www.scopus.com/pages/publications/25144472739

M3 - 文章

AN - SCOPUS:25144472739

SN - 0367-6234

VL - 37

SP - 1108

EP - 1112

JO - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

JF - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

IS - 8

ER -

Exploratory studies on the carboxymethylation of cassava starch in water-miscible organic media

Abstract

Keywords

Other files and links

Fingerprint

Cite this