Three phase partitioning of starch and its structural consequences
نویسندگان
چکیده
Three phase partitioning (TPP) of starch and its derivatives was carried out by adding tert-butanol to the aqueous solution of the polysaccharides in presence of ammonium sulfate. Starch and its modified forms could be recovered in more than 90% yield in the form of an interfacial layer between aqueous and organic phases. Quantitative FT-IR spectral analysis of TPP-treated potato starch revealed a clear change in the IR absorption band of the hydroxyl groups indicating a decrease in hydrogen bonding. TPP-treated starch showed lower biodegradability with wheat germ a-amylase.
منابع مشابه
Extraction of Cephalexin Using Aqueous Two-Phase Systems Composed of Cholinium Chloride and K3PO4
Cephalexin is an important antibiotic. It is very significant to determine an appropriate method for the extraction of this valuable antibiotic for industrial applications. Aiming at developing an efficient method for the extraction of cephalexin, the partitioning of cephalexin has been evaluated in aqueous two-phase system, including cholinium chloride and potassium phosphate. The effect of th...
متن کاملUsing Cold Plasma Technology as a Method for the Structural Modification of Corn Starch and Its Functional Assessment in Food Models
Background and Objectives: Cold plasma is used as an innovative solution in production and distribution of healthy and high-quality foods. Objectives of this study were to use cold plasma technology as a method for the structural modification of corn starch and its functional assessment in food models. Materials & Methods: Starch granules were treated with plasma with two various gases in the ...
متن کاملThe Effect of pH on the Liquid-liquid Equilibrium for a System Containing Polyethylene Glycol Di-methyl Ether and Tri-potassium Citrate and its Application for Acetaminophen Separation
In this work liquid-liquid equilibrium for aqueous two phase system composed of polyethylene glycol di-methyl ether and tri-potassium citrate at different medium pH values (6.00, 7.00 and 8.00) and 298.15 K was studied. The obtained results show that two phase area expanded with an increasing of pH values. The performances of the Merchuk and semi-empirical equations were tested in correlating t...
متن کاملTurgor-responsive starch phosphorylation in Oryza sativa stems: A primary event of starch degradation associated with grain-filling ability
Grain filling ability is mainly affected by the translocation of carbohydrates generated from temporarily stored stem starch in most field crops including rice (Oryza sativa L.). The partitioning of non-structural stem carbohydrates has been recognized as an important trait for raising the yield ceiling, yet we still do not fully understand how carbohydrate partitioning occurs in the stems. In ...
متن کاملUrban neighborhood regeneration; Interpretive structural modeling of the factors affecting connected public spaces
Urban planning has emphasized quicker, lighter, and cheaper methods in recent years. According to urban studies, urban public spaces are valuable factors for urban neighborhood regeneration. Although, the concept of the network (connectivity in public spaces) is not new, and various authors and researchers had applied and adapted it to different areas of urban planning, it would be a new approa...
متن کامل