Acetate starch

The high-, medium-, and low-amylose rice starches were isolated by the alkaline method and acetylated by using acetic anhydride for 10, 30, and 90 min of reaction. The degree of substitution (DS), the Fourier-transformed infrared spectroscopy (FTIR), the X-ray diffractograms, the thermal, morphological, and pasting properties, and the swelling power and solubility of native and acetylated starches were evaluated.

9p vihermione 06-01-2023 8 2   Download

Different starch derivatives were evaluated as supports for attachment and recovery of macrophages (RAW 264.7 line). Gelatinized starch (G-St), acetate starch (Ac-St), carboxymethyl starch and aminoethyl starch were synthesized and characterized by FTIR, 1H NMR, SEM and static water contact angle.

10p vihermione 06-01-2023 10 2   Download

Wood fiber-based packaging materials, as renewable materials, have growing market potential due to their sustainability. A new breakthrough in cellulose-based packaging requires some improvement in the mechanical properties of paper. Bleached softwood kraft pulp was mechanically treated, in two stages, using high- and lowconsistency refining, sequentially.

9p vihermione 06-01-2023 7 2   Download

Organocatalytic acetylation of pea starch was systematically optimized using tartaric acid as catalyst. The effect of the degree of substitution with alkanoyl (DSacyl) and tartaryl groups (DStar) on thermal and moisture resistivity, and film-forming properties was investigated. Pea starch with DSacyl from 0.03 to 2.8 was successfully developed at more efficient reaction rates than acetylated maize starch.

12p viginny 30-12-2022 14 2   Download

This study aimed to obtain appropriate technological parameters of acid-catalytic pyrolysis to synthesize resistant dextrin from rice starch. Hydrochloric acid has the highest catalytic efficiency of the four tested acids (acetic, citric, lactic, and hydrochloric). With HCl catalyst, pyrodextrins gained the content of indigestible fraction (IDF), water solubility, and whiteness 70.82 %, 96.73 %, and 64.27 %, respectively.

12p nguaconbaynhay11 01-04-2021 19 2   Download

In this study, sago starch was modified in order to enhance its physicochemical properties. Carboxymethylation was used to introduce a carboxymethyl group into a starch compound. The carboxymethyl sago starch (CMSS) was used to prepare smart hydrogel by adding acetic acid into the CMSS powder as the crosslinking agent.

10p vijiraiya2711 27-05-2020 7 1   Download

Electrophoresis is defined as the transport of electrically charged particles in a direct current electric field. Electrophoretic separation is based on differential rates of migration in the bulk of the liquid phase and is not concerned with reactions occurring at the electrodes. In the early days, electrophoresis was carried out either in free solution or in the supporting media such as paper, cellulose acetate, starch, agarose, and polyacry lamide gel.

246p camchuong_1 04-12-2012 72 7   Download