The purposes of this study were to produce polysaccharides from red pepper stems using different extraction methods and evaluate their chemical composition, biological capacities, and rheological properties. Two polysaccharides were extracted from red pepper stems using an autoclave and alkali treatments, and the extracts were named PAU and PAL, respectively. The contents of total phenolics and flavonoids were significantly higher in PAU than those in PAL. PAU exhibited greater scavenging activities on 2,2-diphenyl-1-picrylhydrazyl radicals, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt radicals, superoxide radicals, and nitrite compared to PAL, suggesting that PAU served as better antioxidants. Similarly, inhibitory abilities against carbohydrate hydrolyzing enzymes of PAU were higher than those of PAL. Steady shear rheological analysis demonstrated that PAU showed higher psuedoplastic shear-thinning behavior compared to PAL. Based on the results from dynamic shear rheological properties, it was found that both samples had predominantly viscous behavior rather than elastic behavior.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5642805 | PMC |
| http://dx.doi.org/10.3746/pnf.2017.22.3.223 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Study on the effect of water content on physical properties of bentonite.
PLoS One
January 2025
Lecturer College of Civil and Traffic Engineering, Henan University of Urban Construction, Ping Dingshan, China.
Moisture content profoundly influences the engineering properties of expansive soil, a critical consideration in various geotechnical applications. This study delves into the intricate relationship between water content and the physical properties of bentonite, a key constituent of expansive soil. Through a comprehensive analysis encompassing fundamental physical properties, rheological characteristics, permeability behavior, and microscopic features, we elucidate the complex interplay between water content and bentonite behavior.
View Article and Find Full Text PDFA fundamental rheological approach to determine the optimum water absorption capacity of a model gluten-free dough system: soy flour dough.
J Sci Food Agric
January 2025
Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID, USA.
Background: Determining the optimum water absorption capacity of gluten-free flours for an improved breadmaking process has been a challenge because there is no standard method. In the present study, large amplitude oscillatory shear (LAOS) tests were performed to explore the impact of different levels of added water on non-linear viscoelastic response of soy flour dough in comparison to wheat flour dough at a consistency of 500 BU.
Results: Among the LAOS parameters, large strain modulus (G') and large strain rate viscosity (η') were found to better probe the impact of added water amount on non-linear viscoelastic properties of soy flour dough.
Characterization, physicochemical properties, antioxidant activity and hypolipidemic activities of a polysaccharides from Lachnum YM40.
Fitoterapia
January 2025
Engineering Research Center of Bio-process, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China. Electronic address:
LEP-1a, a new polysaccharide fraction isolated and purified from Lachnum YM40, has a molecular weight of 24.29 kDa. LEP-1a's chemical composition investigation showed that mannose, galactose, and glucose made up the majority of its cosmetics.
View Article and Find Full Text PDFInsights on the role of cryoprotectants in enhancing the properties of bioinks required for cryobioprinting of biological constructs.
J Mater Sci Mater Med
January 2025
Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), ABCDE Innovation Centre, School of Chemical & Biotechnology (SCBT), SASTRA Deemed University, Thanjavur, 613401, India.
Preservation and long-term storage of readily available cell-laden tissue-engineered products are major challenges in expanding their applications in healthcare. In recent years, there has been increasing interest in the development of off-the-shelf tissue-engineered products using the cryobioprinting approach. Here, bioinks are incorporated with cryoprotective agents (CPAs) to allow the fabrication of cryopreservable tissue constructs.
View Article and Find Full Text PDFMicrorheometric study of damage and rupture of capsules in simple shear flow.
J Fluid Mech
December 2024
Université de Technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Compiégne, France.
Capsules, which are potentially-active fluid droplets enclosed in a thin elastic membrane, experience large deformations when placed in suspension. The induced fluid-structure interaction stresses can potentially lead to rupture of the capsule membrane. While numerous experimental studies have focused on the rheological behavior of capsules until rupture, there remains a gap in understanding the evolution of their mechanical properties and the underlying mechanisms of damage and breakup under flow.
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!