Structural characterization of α-zein
WebApr 9, 2024 · X-ray powder diffraction is a vital analytical tool that is used in pharmaceutical science. It is increasingly used to establish the crystal structure of a new pharmaceutical substance, in particular, cocrystal or its polymorphic forms. This review begins with a brief discussion of the reliability of the structural parameters retrieved from powder patterns. … WebOct 13, 2024 · α-Zein has received widespread attention owing to its unique solubility, amphipathic, and self-assembly properties, which is because of its high proportion of …
Structural characterization of α-zein
Did you know?
WebA highly pure α-zein was extracted from corn flour using ethanol (95%). Subsequently, ion-exchange chromatography was performed, using SP-Sepharose that yielded a highly … WebWith the knowledge of the amino acid sequences of two maize zein proteins (apparent molecular weights of 19,000 and 22,000), a structural model is proposed for their molecular conformation. The circular dichroic spectrum taken in the 190-240 nm range for a zein protein mixture in methanol solution showed the zein secondary structure to be ...
Web2.2. Chemical Composition of BPP. The crude polysaccharide from B. pseudospeciosus was prepared, and it was 4.20% relative to the dried BPP samples (100 g). The contents of carbohydrates, protein, and uronic acid in BPP were 64.00%, 1.95%, and 1.19%, respectively (Table 1).The HPLC detection suggested that glucose (Glc), mannose (Man), and … WebJul 25, 2011 · In this paper, the structure and rheological properties of α-zein in acetic acid solutions have been investigated by small-angle X-ray scattering (SAXS), rheology, and …
WebNov 28, 2016 · The secondary structural composition of native zein was 44% α-helix, 22% β-sheet and 34% random coil, respectively. ... Structural characterization, formation mechanism and stability of curcumin in zein-lecithin composite nanoparticles fabricated by antisolvent co-precipitation. Dai L ... WebThe use of biodegradable polymers has had excellent results in the development of drug delivery systems for mucosal delivery including oral, intranasal, and pulmonary mechanisms. 14–16 Attractive designs of delivery systems for curcumin have been rapidly developed in this area including the use of zein-hyaluronan-based nanoparticles. 17,18
WebDistinct variations in the proportion of α-helix and β-sheet was recorded ... Singh, N.; Kaur, A.; Rana, J.C. Structural and functional characterization of kidney bean and field pea protein isolates: A comparative study. ... Whent, M.; Yu, L.; Wang, Q. Preparation and characterization of zein/chitosan complex for encapsulation of α ...
WebJan 12, 2005 · A highly pure α-zein was extracted from corn flour using ethanol (95%). Subsequently, ion-exchange chromatography was performed, using SP-Sepharose that yielded a highly homogeneous protein. This protein migrated as a single band in 20% SDS−PAGE and in pH gradient gels, showing an isoelectric point of 6.8. Mass … blackdown nursery and garden centreWebZein, a major corn protein, has an amphiphilic molecule capable of self-assembling into distinctly different structures, i.e., rods, sheets, and spheres. In this work, ultra-small-angle … game changers foodWeb16 hours ago · The CD spectra can be used to characterize the structures of proteins, especially their different types of secondary structure (Wei et al., 2024).Fig. 1 shows the CD spectra of zein during postharvest ripening of two varieties of corns at two temperatures. There were positive peaks at 190–200 nm and negative peaks near 208 and 220 nm, … blackdown nursery wellingtonWebWAXS patterns showed two diffuse rings for these samples indicative of noncrystalline structures. Measured d-spacings of ∼ 4.6 {\AA} and ∼ 10.5 {\AA} were found for zein-oleic acid resins and films, consistent with the presence of α-helical segments. The granular zein and zein fibers had ∼ 4.6-{\AA} and ∼ 9.5-{\AA} spacings. game changers floridaWebZein, a major corn protein, has an amphiphilic molecule capable of self-assembling into distinctly different structures, i.e., rods, sheets, and spheres. In this work, ultra-small-angle X-ray scattering (USAXS) was applied to investigate the formation of self-assembled zein structures in binary solvent systems of ethanol and water. game changers food documentaryWebFeb 1, 2006 · SAXS and light-scattering experiments suggest that in alcohol/water mixtures alpha-zein exists as an oblong structure with an axial ratio of approximately 6:1. … blackdown nursing home mary tavyWebJan 25, 2024 · Zein is the main protein present in maize, accounting for around 50% of the total protein content. It belongs to the prolamin class and is composed of lipophilic amino acid residues. The α-zein form accounts for over 70% of the total zein protein and is the type that is commercially available ( Paliwal and Palakurthi, 2014 ). game changers film summary