Starch hydrogels: The influence of the amylose content and gelatinization method

International Journal of Biological Macromolecules
Bárbara BiduskiElessandra da Rosa Zavareze

Abstract

Gelatinization and retrogradation, influenced by amylose and amylopectin ratio, are important characteristics for starch hydrogels elaboration. The objective of this study was to evaluate the influence of amylose content and the gelatinization method on the physicochemical characteristics of native and cross-linked rice starch hydrogels. The native and cross-linked starches were gelatinized with heating or alkaline solution, added polyvinyl alcohol, frozen and then freeze-dried. The cross-linked starch had a low final viscosity (101.38 RVU), which made the heat-induced gelatinized hydrogel readily disintegrated in water. However, modified starch hydrogels obtained by alkaline-induced gelatinization resulted in a more rigid structure than the native starch hydrogels. In addition, the starch sample with high amylose content had lower water absorption (322.2%) due to the greater stiffness of the hydrogel structure that resisted swelling. The alkaline-gelatinization resulted in stiffer hydrogels with lower water absorption (322.2 to 534.8%), while the heat-gelatinized behaved as a superabsorbent (658.7 to 1068.5%). The variability of the hydrogels properties of this study can enable a range of applications due to different amylose ...Continue Reading

Citations

Oct 17, 2019·Polymers·Dominique Larrea-WachtendorffGiovanna Ferrari
Jan 8, 2021·Critical Reviews in Food Science and Nutrition·Khalid GulYa-Peng Fang
Aug 20, 2019·International Journal of Biological Macromolecules·Reza Eivazzadeh-KeihanSomayeh Asgharnasl
Mar 4, 2021·Food Science and Technology International = Ciencia Y Tecnología De Los Alimentos Internacional·Elsa Beatriz Fonseca-Santanilla, Liliana Lucía Betancourt-López
Mar 21, 2020·International Journal of Biological Macromolecules·Francine Tavares da SilvaAlvaro Renato Guerra Dias
Jun 18, 2021·ACS Biomaterials Science & Engineering·M Isabel Rial-HermidaJoão F Mano
Jun 23, 2021·Journal of Biomaterials Science. Polymer Edition·Tainara de Paula de Lima Lima, Marcele Fonseca Passos
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Huiyuan LuoYuzhu Xiong
Mar 3, 2019·Carbohydrate Polymers·Ana Priscila M SilvaHenriette M C Azeredo
Sep 2, 2021·The Journal of Pharmacy and Pharmacology·Aikaterini-Theodora ChatzitakiDimitrios G Fatouros

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.