Extraction and characterization of biofunctional lignocellulosic fibers from Pulicaria undulata plant and the effect of alkali treatment on their bio-physicochemical properties
المؤلف | Mohammed, Alsafran |
المؤلف | Sadasivuni, Kishor Kumar |
المؤلف | Haneesh, Julna Mohammed |
المؤلف | Razavi, Mariam Mohammed |
المؤلف | Kasote, Deepak M. |
تاريخ الإتاحة | 2024-08-19T04:47:57Z |
تاريخ النشر | 2024-12-31 |
اسم المنشور | Carbohydrate Polymer Technologies and Applications |
المعرّف | http://dx.doi.org/10.1016/j.carpta.2024.100542 |
الرقم المعياري الدولي للكتاب | 26668939 |
الملخص | This study aimed to extract and characterize natural fibers from the P. undulata plant and to evaluate their antioxidant and antimicrobial activities, including the influence of alkali treatment on the bio-physicochemical properties. The average yield of raw fibers obtained was 28.1 %. The raw fibers of P. undulata were rich in cellulose (36.2 %), followed by hemicellulose (30.3 %), lignin (16.2 %), moisture (11.1 %), and pectin (3.9 %). However, the alkali treatment removed 75.7 % of hemicellulose and 50.6 % of lignin from the raw fiber sample and also increased its crystallinity and hydrophobicity. Similarly, the degradation temperature of P. undulata fibers also increased from 324.4 °C to 332.6 °C after alkali treatment. The raw fiber showed promising radical scavenging and reducing power properties, and demonstrated antifungal activity against Candida albicans. In contrast, alkali-treated fibers showed a significant decrease in radical scavenging activity (almost 7–8 fold) and reducing power potential (6-fold) and exhibited no antifungal activity, potentially due to the loss of bioactive components such as lignin and essential oils. Overall, the findings of this study highlight the potential applications of raw P. undulata fibers in the healthcare and cosmetics products. |
راعي المشروع | This work was supported by Agricultural Research Station (ARS), Qatar University. The authors are thankful to Dr. Noora Al-Qahtani, Head of the Central Laboratories Unit (CLU), and Mr. Essam Shabaan Mohamed Attia (CLU) for their assistance with SEM analysis. Special thanks to Mr. Kafil Hoda Ansaria (ARS) for his support with chemical analysis. The authors also appreciate the help of Mr. Abdul Jaleel Naushad Odam Manniyil and Mr. Abdullah Alashraf Abul Baker from the Center for Advanced Materials for their assistance with XRD, FTIR, and TGA. |
اللغة | en |
الناشر | Elsevier |
الموضوع | Pulicaria undulata Natural fiber Alkali treatment Antimicrobial activity Antioxidant property |
النوع | Article |
رقم المجلد | 8 |
Open Access user License | http://creativecommons.org/licenses/by-nc/4.0/ |
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