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Thermocompressed Chickpea-Flour Sheets Reinforced with Cellulose Nanocrystals: Improved Water-Vapor Barrier and Thermo-Mechanical Performance
Emmanuel Flores-Huicochea
,Magarito Somera González
,Monserrat Morales-Catalán
,Claudia Andréa Romero Bastida
,Allison Vianey Valle-Bravo
,Carlos López-González
,Amalia Irais Cuno-Jaimes
,Rosalía América González-Soto
Chickpea (Cicer arietinum L.) flour is a promising raw material for the development of biodegradable packaging due to its protein and polyphenol content. In this study, thermocompressed chickpea flour sheets were reinforced with cellulose nanocrystals (CNC) to improve their barrier, mechanical, thermal, and structural properties. Preliminary trials identified 22% moisture as the most suitable condition for consistent sheet formation. CNC was incorporated at 0, 2.5, 5.0, and 7.5% (w/w), and the resulting sheets were evaluated for phenolic content, antioxidant activity, water vapor permeability (WVP), optical properties, thermal behavior, morphology, and structural characteristics. Thermocompression reduced the measurable phenolic fractions, although antioxidant activity was not significantly affected. CNC markedly reduced WVP, from 5.16x10-10 (control) to 5.93x10-12 g∙m-1∙s-1∙Pa-1 at 7.5% CNC. Tensile strength and Young's modulus increased with CNC loading, while elongation at break was highest at intermediate concentrations. SEM, DSC, XRD, and FTIR analyses indicated matrix reorganization and modified thermo-structural behavior. Overall, CNC improved the barrier and mechanical performance of thermocompressed chickpea flour sheets, supporting their potential for biodegradable packaging applications.
Chickpea (Cicer arietinum L.) flour is a promising raw material for the development of biodegradable packaging due to its protein and polyphenol content. In this study, thermocompressed chickpea flour sheets were reinforced with cellulose nanocrystals (CNC) to improve their barrier, mechanical, thermal, and structural properties. Preliminary trials identified 22% moisture as the most suitable condition for consistent sheet formation. CNC was incorporated at 0, 2.5, 5.0, and 7.5% (w/w), and the resulting sheets were evaluated for phenolic content, antioxidant activity, water vapor permeability (WVP), optical properties, thermal behavior, morphology, and structural characteristics. Thermocompression reduced the measurable phenolic fractions, although antioxidant activity was not significantly affected. CNC markedly reduced WVP, from 5.16x10-10 (control) to 5.93x10-12 g∙m-1∙s-1∙Pa-1 at 7.5% CNC. Tensile strength and Young's modulus increased with CNC loading, while elongation at break was highest at intermediate concentrations. SEM, DSC, XRD, and FTIR analyses indicated matrix reorganization and modified thermo-structural behavior. Overall, CNC improved the barrier and mechanical performance of thermocompressed chickpea flour sheets, supporting their potential for biodegradable packaging applications.
Posted: 03 April 2026
Advances in CRISPR Plant Applications
Leo Jing
,Devjyoti Roy
,Melanie Kalischuk
Posted: 03 April 2026
In Situ Programming of Shape-Morphing Hydrogels via Vat Photopolymerization for 4D Bioprinting
In Situ Programming of Shape-Morphing Hydrogels via Vat Photopolymerization for 4D Bioprinting
Luca Guida
,Elisa Ciotti
,Giovanni Venturelli
,Simone Bagatella
,Marinella Levi
Posted: 03 April 2026
Toxicity Evaluation Mechanisms of HDPE Nanoplastic on Artemia Nauplii: An Analysis Oxidative Stress, Morphology, and Ultrastructural Studies
Yeşim Özkan
,Aleyna Akyol
Posted: 03 April 2026
Assessment of Manual Pulse Calculations at Varying Time Intervals: A Clinical Test Accuracy Original Article
Dev Desai
,Vismit Gami
,Parihar Doshi
,Nilay Suthar
Background: Pulse measurement and heart rate are one of the most basic medical skills and yet, is the most important skill that has be learned by all medical professionals. The duration of how long that should be measured is variable depending on the learning of individual medical student. Aim: To assess accuracy of pulse calculation done manually to decide the cutoff on how long pulse should be measured. Methodology: An observational study was conducted after due IRB permission where included patients’ pulse was calculated for different time intervals and extrapolated to calculate the beats per minute. At the same time, patient’s pulse was taken by a calibrated pulse oximeter 6 times during that 1 minute. Average of the Oximeter data was compared against the extrapolated data was compared for their averages and standard deviation across all time fields using T-test and statistical significant difference was found. Result: Presence of statistical difference between the extrapolated data and oximeter data represents that calculating pulse for that long actually yields statistically significant deviation. Calculating pulse for 12 seconds and extrapolating it yields p-value of 0.0002 representing a significant difference but calculating higher than 12, i.e., for 15 seconds and then extrapolating yields p-value of 0.0612 which represents a nonsignificant difference compared to average oximeter pulse reading. Conclusion: This research paper although simple has been a way to answer the age old question on how long pulse should be measured. This concludes that any measurements higher than 15 seconds does yield a nonsignificant difference. Hence, the pulse should at least be measured for 15 seconds or higher.
Background: Pulse measurement and heart rate are one of the most basic medical skills and yet, is the most important skill that has be learned by all medical professionals. The duration of how long that should be measured is variable depending on the learning of individual medical student. Aim: To assess accuracy of pulse calculation done manually to decide the cutoff on how long pulse should be measured. Methodology: An observational study was conducted after due IRB permission where included patients’ pulse was calculated for different time intervals and extrapolated to calculate the beats per minute. At the same time, patient’s pulse was taken by a calibrated pulse oximeter 6 times during that 1 minute. Average of the Oximeter data was compared against the extrapolated data was compared for their averages and standard deviation across all time fields using T-test and statistical significant difference was found. Result: Presence of statistical difference between the extrapolated data and oximeter data represents that calculating pulse for that long actually yields statistically significant deviation. Calculating pulse for 12 seconds and extrapolating it yields p-value of 0.0002 representing a significant difference but calculating higher than 12, i.e., for 15 seconds and then extrapolating yields p-value of 0.0612 which represents a nonsignificant difference compared to average oximeter pulse reading. Conclusion: This research paper although simple has been a way to answer the age old question on how long pulse should be measured. This concludes that any measurements higher than 15 seconds does yield a nonsignificant difference. Hence, the pulse should at least be measured for 15 seconds or higher.
Posted: 03 April 2026
Integrating Computer-Aided Design and Model-Based Systems Engineering for Early Zonal Hazard Analysis: Application to a Supersonic Aircraft Fuel System
Ayush Kamboj
,Yicheng Sun
Posted: 03 April 2026
TB–COVID-19 Co-Infection: Epidemiology, Mechanistic Crosstalk, and Therapeutic Challenges
Sayan Ganguly
,Subhojit Pal
,Pritam Saha
,Koushik Mukherjee
Posted: 03 April 2026
Does Agricultural Digital Transformation Improve Access to Agricultural Productive Credit for Farmers?
Mingdong Zhou
,Wenqin Guo
,Lei Zhang
Posted: 03 April 2026
Designing Microbial Inoculants for Agroecosystems: Integrating Soil and Plant Context
Alexey S. Vasilchenko
,Anastasia V. Teslya
Posted: 03 April 2026
Short- and Long-Term Chrono-Immune Consequences of Dim Light at Night Exposure at Different Life Stages
Carlos A. Trujillo
,Fernando Miranda
,Jose Sarmiento
Posted: 03 April 2026
Hybrid Additive Manufacturing via Wire Arc Metal Deposition and Deformation for Microstructure Refinement and Performance Enhancement
Ahmed Nabil Elalem
,Xin Wu
Posted: 03 April 2026
Joint Analysis of QTL Data Provided Insights into the Connection of Transcriptome and Proteome and the Impact of Omics Platforms
Majid Nikpay
Posted: 03 April 2026
Extraction of Detailed 3D Coseismic Displacements in the 2024 Noto Peninsula Earthquake from Airborne LiDAR Data
Fumio Yamazaki
,Wen Liu
Posted: 03 April 2026
MTSF—Market-Theoretic Security Framework: A Unified Paradigm for the Art of Proving and Disproving Security
Basker Palaniswamy
,Paolo Palmieri
Posted: 03 April 2026
Recommender Systems Should Now Be Designed Towards Agents
Chaoyue He
,Xin Zhou
,Di Wang
,Hong Xu
,Wei Liu
,Chunyan Miao
Posted: 02 April 2026
On the Hitting Time Index of Broom Graphs
José Luis Palacios
Posted: 02 April 2026
Evolution of Water Use Efficiency, Heat Tolerance, and Carbon Isotope Discrimination Among Canadian Spring Wheat Cultivars
Ludovic Joseph Anatole Capo-chichi
,Scott X. Chang
,Pierre Hucl
,Mazen Aljarrah
,Michael Holtz
,Muhammad Iqbal
,Ammar Elakhdar
,Guillermo Hernandez Ramirez
Posted: 02 April 2026
From Ethnobotany to Immunometabolism:Network Pharmacology Analysis of Nigerian Medicinal Plants as Modulators of Immune-Metabolic Pathways in Obesity and Type 2 Diabetes
Jesutofunmi Samson Adeyemi
Posted: 02 April 2026
Phase Transformations in Rapidly Solidified Al-Cu-Li-Mg-SC-Zr Alloy During Model Homogenization Studied by In-Situ STEM
Rostislav Králík
,Barbora Kihoulou
,Lucia Bajtošová
,Tomáš Krajňák
,Miroslav Cieslar
Posted: 02 April 2026
Phytotoxic Effects of Aromatic Plants’ Hydrodistillation Water Residues on Germination and Growth Characteristics of Avena sterilis, Echinochloa crus-galli, and Zea mays
Pinelopi N. Liontou
,Anastasia V. Badeka
,Thomas K. Gitsopoulos
,Georgios Patakioutas
,Nicholas E. Korres
Posted: 02 April 2026
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