In order to investigate the effects of different crosslinking agents on physicochemical properties and adsorption properties of porous starch. Native corn starch was hydrolyzed by maltase and crosslinked with different crosslinking agents. Sodium trimetaphosphate crosslinked porous starch (STMP-MPS), malic acid cross-linked porous starch (MA-MPS) and citric acid cross-linked porous starch (CA-MPS) were prepared. After crosslinking, MA-MPS and CA-MPS showed a new CO stretching absorption peak at 1738 cm, and the crosslinking degree was much higher than that of STMP-MPS. The surface area of MA-MPS was 36 % higher than that of STMP-MPS. Compared with the average pore size of 12.43 nm of STMP-MPS, CA-MPS (14.02 nm) and MA-MPS (14.79 nm) were increased more significantly. The degradation temperature of MA-MPS and CA-MPS was increased by the introduction of ester bond, which indicates that the organic acid cross-linking strengthens the starch granules and hence more energy is required for disruption. Compared with STMP-MPS, the water absorption of MA-MPS and CA-MPS increased by 64 % and 32 %, respectively. Furthermore, the adsorption capacity of MA-MPS to essential oil was the strongest, about 4 times that of STMP-MPS. Overall, it is feasible to modify porous starch by crosslinking reaction to improve its heat resistance and adsorption properties.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2023.127140 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel insights into released hydrochar particle derived from typical high nitrogen waste biomass: Special properties, microstructure and formation mechanism.
Waste Manag
December 2024
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain/Scientific Observing and Experimental Station of Arable Land Conservation (Jiangsu), Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China. Electronic address:
Article Synopsis
- Hydrothermal carbonization (HTC) transforms waste biomass, particularly high nitrogen feedstocks like kitchen garbage and blue-green algae, into valuable resources, but the characteristics of small hydrochar particles remain underexplored.
- Hydrochar particles show unique properties such as poor porosity, moderate pH, negative charge, and high hydrophobicity, which differ from the original hydrochar and secondary char derived from simpler biomasses.
- The study identifies complex formation mechanisms through various chemical reactions in the hydrochar microparticles, highlighting their potential as soil fertilizers and decontaminants while emphasizing that effectiveness is influenced by HTC temperature and type of biomass used.
Structural and physicochemical properties of porous starch effected by different microwave involved stages under enzymatic hydrolysis.
Int J Biol Macromol
December 2024
Key Laboratory of Food Science and Engineering of Heilongjiang Province, College of Food Engineering, Harbin University of Commerce, Harbin 150076, China. Electronic address:
Microwave-assisted enzymatic hydrolysis is an effective method to shorten the preparation time of porous starch. This study aims to investigate the effect of microwave treatment before/during/after enzymatic hydrolysis on the properties of porous starch. The results showed that the physicochemical properties of the porous starch obtained by microwave-assisted enzymatic hydrolysis were improved.
View Article and Find Full Text PDFImproving the emulsification properties of corn starch by esterification combined with freeze-thawing and enzymatic treatment.
Food Chem
December 2024
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China. Electronic address:
In this study, high performance porous starch was prepared by combining freeze-thawing and enzymatic hydrolysis with the aim of evaluating its potential as a starch emulsifier in Pickering emulsions. The results indicate that the combined treatment significantly altered the specific surface area of starch (from 0.3257 m/g to 1.
View Article and Find Full Text PDFCellulose-Starch Composite Aerogels as Thermal Superinsulating Materials.
ACS Omega
December 2024
Department of Food Science, University of Arkansas, Fayetteville, Arkansas 72704, United States.
The demand for sustainable packaging materials is rapidly increasing due to growing environmental concerns over the impact of plastic waste. In this study, biodegradable, porous, lightweight, and high-surface-area microcrystalline cellulose-starch (MCC-S) hybrid aerogels were synthesized via supercritical carbon dioxide (SC-CO) drying. The samples were generated using five different MCC-S weight ratios and characterized for their morphology, crystallinity, and structural and thermal properties.
View Article and Find Full Text PDFSolubility of cellulose derivatives is a limited indicator of their function on retarding starch digestion.
Int J Biol Macromol
December 2024
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China. Electronic address:
Cellulose and its derivatives have been utilized as additives and functional fibers in food industries. The solubility has been traditionally used to categorize cellulose derivatives, whilst their complex effects within food matrix are less understood. In this study, insoluble forms i.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!