Pressed palm oil mesocarp fibers (PPOMF) are by-products from oil palm industry and represents a potential source of lignocellulosic biomass. In order to add value to this agro-waste, dewaxed palm oil acetosolv lignin (DPOAL) was extracted under eco-friendly pulping method. The chemical composition and structural characteristics of DPOAL were investigated. The results showed elevated yield (48.5%) and high purity (94.3%), besides a moderate average molecular weight (1394 g mol) and narrow polydispersity index (1.88). Structural characterization via FT-IR, HC HSQC and P NMR indicated that DPOAL was a typical HGS-type lignin. In addition, to increase the phenolic hydroxyl contents and improve DPOAL's antioxidant properties through a simple method, a fractionation process with methanol, ethanol and acetone was carried out, obtaining the methanol (MeOH-F), ethanol (EtOH-F) and acetone (ACT-F) soluble fractions. These were characterized by FT-IR, DSC, HC HSQC and P NMR, which showed higher values of phenolic and aliphatic hydroxyls groups compared to DPOAL. The antioxidant activity was evaluated by the free radical scavenging activity of 2,2‑diphenyl‑1‑picrylhydrazyl radicals (DPPH·) and compared with commercial antioxidants, such as BHT and Irganox 1010. Interestingly, lignin samples had significantly lower IC values compared to commercial antioxidants, what suggests a great potential as novel natural antioxidant.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2018.09.066 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Oil palm smallholders and the road to certification: Insights from Indonesia.
J Environ Manage
January 2025
University of Göttingen, Department of Agricultural Economics and Rural Development, Platz der Göttinger Sieben 5, 37073, Göttingen, Germany. Electronic address:
Smallholder-managed oil palm plantations are a major driver of economic welfare and rural development. However, compared to industrial producers, smallholders are associated with lower farm productivity and disproportionately higher rates of illegal land clearing. Therefore, a balance must be struck between mitigating adverse externalities and strengthening favorable outcomes to ensure smallholders' sustainable integration into the palm oil industry.
View Article and Find Full Text PDFImproving paraffin precipitate inhibition using glycine and Palm-based Methyl Ester Sulfonate (MES) eco-friendly inhibitors.
PLoS One
January 2025
Chemical & Petroleum Engineering Department, United Arab Emirates University, Al Ain, United Arab Emirates.
Oil fields located in cold environments and deep-sea locations often face challenges with paraffin wax buildup in pipelines during long-distance crude oil transportation. Various strategies have been employed to address this issue, with chemical methods being the most effective and economical. However, traditional chemical inhibitors present problems due to their high toxicity and low biodegradability, leading to increased operational costs and environmental concerns.
View Article and Find Full Text PDFTc radiolabeling of palm shell charcoal: A preliminary study for potential lung ventilation scintigraphy agent.
Appl Radiat Isot
January 2025
Department of Chemistry, Universitas Indonesia, Depok, 16424, Indonesia.
To investigate the potential of activated carbon from palm kernel shell waste for Tc-radiolabeled nanocarbon aerosol, a new production technology for carbon-based Tc-radioaerosol from such a waste was developed. Treated-palm shell charcoal (t-PSC) was prepared by hydrothermal method to increase the surface area, followed by Tc radiolabelling optimization. The optimal Tc radiolabeling conditions resulted in an adsorption capacity of 21.
View Article and Find Full Text PDFInfluence of feeding thermally peroxidized lipids on the performance of growing pigs.
J Anim Sci
January 2025
University of Minnesota, Department of Food Science and Nutrition, St. Paul, MN 55108 USA.
Article Synopsis
- Feeding pigs lipids with high levels of lipid oxidation products (LOP) negatively impacts their growth performance, but the specific quantitative relationship between LOP and pig growth metrics like growth rate and feed efficiency has not been fully established.
- Four experiments were conducted using varying sources of lipids, such as soybean oil, choice white grease, and palm oil, with specific percentages included in pig diets to evaluate how different levels of LOP affected pig performance.
- The results showed significant statistical relationships between dietary lipid oxidation levels (measured by peroxide and anisidine values) and key performance indicators like average daily gain (ADG) and feed intake (ADFI), which can help predict how oxidized lipids in feed affect pig
Improving CO Removal Efficiency with Bio-Cellulose Acetate: A Multi-Stage Membrane Separation Approach.
Polymers (Basel)
January 2025
Biomass and Oil Palm Research Center of Excellence, Walailak University, Thasala, Nakhon Si Thammarat 80160, Thailand.
In this comprehensive investigation, the sustainable production and utilization of gas separation membranes derived from coconut water (CW) waste was investigated. The research focuses on the synthesis of bacterial cellulose (BC) and cellulose acetate (CA) membranes from CW, followed by a thorough analysis of their characteristics, including morphology, ATR-FTIR spectroscopy, tensile strength, and chemical composition. The study rigorously evaluates membrane performance, with particular emphasis on CO/CH selectivity under various operational conditions, including pressure, membrane thickness, and number of stages.
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!