Isolation and Characterization of Nanocrystalline Cellulose from Ramie Fibers via Phosphoric Acid Hydrolysis

2020 ◽  
pp. 1-12
Author(s):  
Kusmono ◽  
M. N. Affan
Keyword(s):  
Phosphoric Acid ◽  
Acid Hydrolysis ◽  
Nanocrystalline Cellulose ◽  
Isolation And Characterization ◽  
Ramie Fibers ◽  
Phosphoric Acid Hydrolysis

scholarly journals Isolation and Characterization of Nanocrystalline Cellulose Isolated from Pineapple Crown Leaf Fiber Agricultural Wastes Using Acid Hydrolysis

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4188
Author(s):  
Fitriani Fitriani ◽  
Sri Aprilia ◽  
Nasrul Arahman ◽  
Muhammad Roil Bilad ◽  
Amri Amin ◽  
...  
Keyword(s):  
Acid Hydrolysis ◽  
Decomposition Temperature ◽  
Nanocrystalline Cellulose ◽  
Particle Structure ◽  
Hydrolysis Time ◽  
Carbohydrate Polymers ◽  
Isolation And Characterization ◽  
Processing Plants ◽  
Leaf Fiber

Pineapple crown leaf fiber (PCLF) is one of the major biomass wastes from pineapple processing plants. It consists mostly of carbohydrate polymers, such as cellulose, hemicellulose, and lignin. It can be further processed to form a more valuable and widely used nanocrystalline cellulose (NCC). This study investigates the effect of hydrolysis time on the properties of the produced NCC. The acid hydrolysis was conducted using 1 M of sulfuric acid at hydrolysis times of 1–3 h. The resulting NCCs were then characterized by their morphology, functional groups, crystallinity, thermal stability, elemental composition, and production yield. The results show that the NCC products had a rod-like particle structure and possessed a strong cellulose crystalline structure typically found in agricultural fiber-based cellulose. The highest NCC yield was obtained at 79.37% for one hour of hydrolysis. This NCC also displayed a higher decomposition temperature of 176.98 °C. The overall findings suggest that PCLF-derived NCC has attractive properties for a variety of applications.

scholarly journals Isolation and characterization of nanocrystalline cellulose from flaxseed Hull: A future onco-drug delivery agent

2020 ◽  
Vol 24 (4) ◽  
pp. 374-379
Author(s):  
Syed Farooq Adil ◽  
Vanita S. Bhat ◽  
Khalid Mujasam Batoo ◽  
Ahamad Imran ◽  
Mohamed E. Assal ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Nanocrystalline Cellulose ◽  
Isolation And Characterization

Isolation and characterization of some hydroxy fatty and phosphoric acid esters of 10-hydroxy-2-decenoic acid from the royal jelly of honeybees (Apis mellifera)

Lipids ◽  
2005 ◽  
Vol 40 (8) ◽  
pp. 833-838 ◽  
Author(s):  
Naoki Noda ◽  
Kazue Umebayashi ◽  
Takafumi Nakatani ◽  
Kazumoto Miyahara ◽  
Kaori Ishiyama
Keyword(s):  
Apis Mellifera ◽  
Phosphoric Acid ◽  
Royal Jelly ◽  
Decenoic Acid ◽  
Isolation And Characterization ◽  
Acid Esters

scholarly journals Optimization of cellulose nanocrystal length and surface charge density through phosphoric acid hydrolysis

2017 ◽  
Vol 376 (2112) ◽  
pp. 20170041 ◽  
Author(s):  
Oriana M. Vanderfleet ◽  
Daniel A. Osorio ◽  
Emily D. Cranston
Keyword(s):  
Thermal Stability ◽  
Sulfuric Acid ◽  
Phosphoric Acid ◽  
Charge Density ◽  
Acid Hydrolysis ◽  
Acid Concentration ◽  
Large Range ◽  
Phosphate Content ◽  
Hydrolysis Temperature ◽  
Phosphoric Acid Hydrolysis

Cellulose nanocrystals (CNCs) are emerging nanomaterials with a large range of potential applications. CNCs are typically produced through acid hydrolysis with sulfuric acid; however, phosphoric acid has the advantage of generating CNCs with higher thermal stability. This paper presents a design of experiments approach to optimize the hydrolysis of CNCs from cotton with phosphoric acid. Hydrolysis time, temperature and acid concentration were varied across nine experiments and a linear least-squares regression analysis was applied to understand the effects of these parameters on CNC properties. In all but one case, rod-shaped nanoparticles with a high degree of crystallinity and thermal stability were produced. A statistical model was generated to predict CNC length, and trends in phosphate content and zeta potential were elucidated. The CNC length could be tuned over a relatively large range (238–475 nm) and the polydispersity could be narrowed most effectively by increasing the hydrolysis temperature and acid concentration. The CNC phosphate content was most affected by hydrolysis temperature and time; however, the charge density and colloidal stability were considered low compared with sulfuric acid hydrolysed CNCs. This study provides insight into weak acid hydrolysis and proposes ‘design rules’ for CNCs with improved size uniformity and charge density. This article is part of a discussion meeting issue ‘New horizons for cellulose nanotechnology’.

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