Herein, we investigated the impact of moist (steaming and boiling) and dry (baking and microwaving)-heat treatment processes on the structure and physicochemical properties of wheat starch (WS) supplemented with lauric acid (LA). Elemental composition analysis revealed the interplay between WS and LA. Scanning electron microscopy (SEM) and iodine staining revealed that lamellar crystalline structure of WS-LA complexes was improved after moist-heat treatment (relative to samples without any heat treatments); the finding which is at variance to dry-heat treatment process.
View Article and Find Full Text PDFGlycerol-plasticized high-amylose corn starch/konjac glucomannan (HCS/KGM) composite films incorporated with various concentrations of β-cyclodextrin (β-CD) were prepared and investigated for structural, mechanical, and physical properties. The results of X-ray diffraction, attenuated total reflectance Fourier transform infrared spectroscopy, thermogravimetric analyses, and scanning electron microscopy indicated that β-CD excluded from the polymer chains and aggregated to form crystals during film formation, which drove HCS to interact with KGM more compactly. The thickness and transparency of the films increased after β-CD was incorporated.
View Article and Find Full Text PDFThe objective of this study was to investigate the effects of hydrothermal treatments (heat-moisture treatment (HMT) and annealing (ANN)) on the physicochemical properties and in vitro digestibility of yam starch and yam flour. Hydrothermal treatments decreased the pasting properties of yam starch and yam flour. Compared with yam starch, HMT significantly (p < 0.
View Article and Find Full Text PDFIn less than 6 months, COVID-19 spread rapidly around the world and became a global health concern. Hypertension is the most common chronic disease in COVID-19 patients, but its impact on these patients has not been well described. In this retrospective study, 82 patients diagnosed with COVID-19 were enrolled, and epidemiological, demographic, clinical, laboratory, radiological and therapy-related data were analyzed and compared between COVID-19 patients with (29 cases) or without (53 cases) hypertension.
View Article and Find Full Text PDFTo obtain porous starch granules with higher absorption capacities, three types of enzyme combinations were adopted to modify wheat and maize starches: (1) sequential α-amylase (AA) → glucoamylase (GA); (2) sequential branching enzyme (BE) → GA; and (3) sequential AA→BE→GA. The results indicated that AA→BE→GA treatment had a most optimal influence on porous starches. Compared to AA→GA and BE→GA, the mesopores in wheat starch granules treated with AA→BE→GA decreased by 52.
View Article and Find Full Text PDFHerein, the synthetic mechanism of octenyl succinic anhydride (OSA) modified corn starch (OSCS) and granule shells (OSC) based on shells separation pretreatment (SSP) was investigated. High intensity peaks around 1720 and 1570 cm were observed for OSC in Fourier transform infrared (FTIR) spectra after SSP. OSC showed higher degree of substitution (DS) values (ranging from 0.
View Article and Find Full Text PDFBackground: Transurethral seminal vesiculoscopy (TSV) is a safe and effective method for intractable hemospermia. It uses a natural cavity, is fast, involves little trauma, and boasts a low incidence of complications. Because uncontrollable penile erection during general anesthesia will severely influence the surgical operation or even damage the endoscope, spinal anesthesia was applied more on TSV.
View Article and Find Full Text PDFBackground: Both genetic factors and environmental hazards, including environmental noise stress, have been associated with gut microbiome that exacerbates Alzheimer's disease (AD) pathology. However, the role and mechanism of environmental risk factors in early-onset AD (EOAD) pathogenesis remain unclear.
Methods: The molecular pathways underlying EOAD pathophysiology following environmental noise exposure were evaluated using C57BL/6 wild-type (WT) and APP/PS1 Tg mouse models.
With increasing awareness of environmental protection, petroleum-based raw materials are continuously decreasing, which in turn necessitated the development of eco-friendly sustainable biomaterials, as alternative strategy. Starch could be an ideal substitute. Corn starch has been used as a renewable material for development of biodegradable packaging, owing to great varieties, low cost, large-scale industrial production, and good films forming properties.
View Article and Find Full Text PDFUltrasonic treatment can improve the compatibility between a hydrophobic material and a hydrophilic polymer. The light transmittance, crystalline structure, microstructure, surface morphology, moisture barrier, and mechanical properties of a composite film with or without ultrasonication were investigated. Ultrasound increases the film's light transmittance, resulting in a film that has good transparency.
View Article and Find Full Text PDFA novel antimicrobial gel composed of κ-carrageenan (KC) and a cinnamon essential oil (CEO)/hydroxypropyl-β-cyclodextrin (HPCD) composite was developed. The CEO/HPCD composite was characterized by UV-visible spectrophotometry and Fourier-transform infrared spectroscopy (FT-IR), and the changes in the principal components of CEO upon encapsulation by HPCD were analyzed by gas chromatography-mass spectrometry (GC-MS). The physicochemical properties, release kinetics and antimicrobial activity of the fabricated gels were investigated.
View Article and Find Full Text PDFHerein, corn starch-based films were prepared by casting method and different concentrations of Zanthoxylum bungeanum essential oil (ZYO) were added to evaluate the morphological, optical, mechanical, and barrier properties of the resultant films. Additionally, structural analysis was carried out via atomic force microscopy and the antibacterial activities against Staphylococcus aureus, Escherichia coli, and Listeria monocytogenes were assessed. We found that the elongation at break was significantly increased (P < 0.
View Article and Find Full Text PDF9,10-Diphenylanthracene cubic nanoparticles (DPA CNPs) with aggregation-induced emission characteristic (AIEgens) were synthesized through a facile reprecipitation method; then, a bright and stable electrochemiluminescence (ECL) signal can be observed when the DPA CNPs were modified at the glassy carbon electrode (GCE) in the presence of Tri--propylamine (TPA). This phenomenon is ascribed to the molecules with restricted movement that greatly blocked the energy leakage during the relaxation of the excited state, which facilitated the emission of energy in the form of photons. In addition, the size confinement effect of DPA CNPs in the aggregated state effectively enhanced the ECL emission.
View Article and Find Full Text PDFBackground: Safe and efficient nanopesticides for pest control have attracted attention because of their ability to enhance target efficiency and reduce undesirable side effects. Nanoformulations have a significant role in solving the problem of water solubility for insoluble drugs. However, there are few studies on the physicochemical properties and biological activities of pesticides of different particle sizes and remains unclear how these key physicochemical properties are affected by particle size.
View Article and Find Full Text PDFInt J Biol Macromol
February 2021
The large agglomeration of starch paste in hot water, and fast retrogradation tendency and low transparency of starch gel restrict widespread application of kudzu starch. To improve the above defects, kudzu starch was modified with sequentially α-amylase (AA) and transglucosidase (TG), the latter for varying times. The results indicated that, compared to kudzu starch, amylose content and molecular weight of AA/TG-treated starches reduced by 20.
View Article and Find Full Text PDFPesticides play a very important role in pest control and plant protection. However, they can be limited by a tendency to cause ecological system damage due to significant losses into the environment. To increase pesticide utilization efficiency, we developed highly leaf-adhesive avermectin nanocapsules (Av-pH-cat@CS) with pH-responsive controlled release properties.
View Article and Find Full Text PDFFood Res Int
December 2020
The physicochemical properties of κ-carrageenan (KC) can be improved by incorporation with small-molecule cosolvents. The texture and rheological properties, micromorphology, and crystallinity of KC incorporating indigestible dextrin (IDD) and beta-limit dextrin (BLD) were investigated. The rheological properties and sol-gel transition temperatures of the gels were slightly improved and the hardness of KC gels was significantly increased after the two dextrins were mixed in.
View Article and Find Full Text PDFHigh-fat diets (HFDs) can induce health problems including gut microbiota dysbiosis and cardiac dysfunction. In this study, we modulated the gut microbiota in mice to investigate whether Lycium barbarum polysaccharide (LBP), a potential prebiotic fiber, could alleviate HFD-induced myocardial injury. Mice fed a HFD were given LBP (HFPD group) by gavage once/day for 2 months.
View Article and Find Full Text PDFBackground: Acute coronary syndrome (ACS) may induce cardiovascular death. The correlation of mast cells related microRNAs (miRs) with risk of ACS has been investigated. We explored regulatory mechanism of miR-335-5p on macrophage innate immune response, atherosclerotic vulnerable plaque formation, and revascularization in ACS in relation to Notch signaling.
View Article and Find Full Text PDFUnlabelled: Chronic obstructive pulmonary disease (COPD) is a highly heterogeneous disease, and metabolomics plays a hub role in predictive, preventive, and personalized medicine (PPPM) related to COPD. This study thus aimed to reveal the role of induced sputum metabolomics in predicting COPD severity. In this pilot study, a total of 20 COPD patients were included.
View Article and Find Full Text PDFBackground: It is an economical strategy to design a screening method to decide which patients with amyotrophic lateral sclerosis/ motor neuron disease (ALS/MND) should enter into the stage for further comprehensive neuropsychological investigation.
Methods: 59 patients (including 8 with frank dementia) were recruited. They underwent the extensive neuropsychological evaluation and short screening batteries, namely the Mini-Mental State Examination (MMSE), the Peking Union Medical College Hospital version of Montreal Cognitive Assessment (MoCA-P) and the Frontal Assessment Battery (FAB).
Acta Biochim Biophys Sin (Shanghai)
December 2020
Human glioma is the most common primary brain tumor and is associated with high morbidity and mortality. Aberrant expressions of microRNAs (miRNAs) are involved in glioma progression. In the present study, we aimed to elucidate the roles of miR-4530 in the pathogenesis of gliomas.
View Article and Find Full Text PDFBackground: Bladder cancer (BC) is the most commonly occurring malignant tumor of the urinary system worldwide. Long non-coding RNAs (lncRNAs), including lncRNA RNF144A-AS1 (RNF144A-AS1), perform an oncogenic role in BC progression. However, how RNF144A-AS1 is regulated in BC has not been fully investigated, and its role in BC is mostly obscure.
View Article and Find Full Text PDFPotato flour is used in bakery products, extruded products and snacks. However, it displays weaker gel strengths and thus the wholesome utility is curtailed significantly. To improve viscoelastic properties and stability of potato gels, herein potato flour was treated with laccase and peroxidase to create a protein network structure leading to stable gels.
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