Vegetable Oils Research Articles

Electrospinnability of PCL-doped eucalyptus kraft lignin and its application for structuring vegetable oils

This study explores the utilization of eucalyptus kraft lignin (EKL), extracted from black liquor of the pulp and paper industry, doped with polycaprolactone (PCL) to produce nanofibers with potential applications as vegetable oil structuring agents. Solutions of EKL:PCL in different weight ratios were prepared in a N,N-dimethylformamide/chloroform binary solvent, at concentrations ranging from 10 to 40 wt%, and submitted to electrospinning. Electrospinnability essentially correlates with the shear and extensional rheological properties of the solutions. Resulting electrospun EKL/PCL nanofibers were subsequently dispersed in castor oil at different concentrations (15 and 30 wt%). Stable gel-like dispersions were obtained with electrospun nanostructures predominantly composed of nanofibers or beaded fibers. The rheological properties and microstructure of EKL/PCL nanofiber-based oleo-dispersions were significantly influenced by both the EKL:PCL weight ratio and electrospun nanofiber concentration, with increases in the linear viscoelasticity functions and viscosity correlating with higher nanofiber concentrations and PCL proportions. These findings point out the potential of EKL/PCL nanofibers as eco-friendly vegetable oil structuring agents, in line with the principles of circular economy through the reuse of renewable waste materials.

Mechanical and Solvent Extraction of Moringa Oleifera Seeds for Vegetable Oil

Moringa oleifera is a plant that is predicted to be a potential source of vegetable oil. Moringa seeds contain 35-40% oil which is used in the pharmaceutical, cosmetic, automotive and fuel industries. Moringa oil contains oleic, palmitic, and behenic acid which is good for health. Obtaining oil from Moringa seeds in this study used the mechanical pressing method and continued with extraction using a solvent. Mechanical extraction was carried out by pressing Moringa seeds with a moisture content of 8 and 16% w/w. The best result was obtained with a moisture content of 8% with the yield of oil produced from 20 to 31% w/w. The pressing temperature also varied at 80, 100, and 120°C and the best result was given by the temperature of 100°C with the yield of oil produced 27.3-28.8% w/w at 8% moisture content of seeds and 20.9-23.6% w/w at 16% moisture content of seeds. The pressed cake from the mechanical pressing was extracted by maceration method using n-hexane as the solvent. The ratio of the amount of solvent to the amount of pressed cake (mL/gram) was 6/1, 8/1, and 10/1. The best ratio given by 8/1 with the yield oil produced from 8.44-22.82% w/w. Moringa oil was characterized using the standard method. The oil density obtained 0.912-0.919 g/cm3, saponification value 195-202 mgKOH/g oil, acid value 1.62-2.77 mgKOH/g oil, and peroxide value 1.85-3.70 meqO2/kg.

Comparative Analysis of Milling Technologies in Dark and Milk Cocoa Topping Production for Ice Cream

Chocolate and cocoa toppings are widely used for confectionery products. Toppings used for ice creams contain higher fat content (about 40-60%) to ensure a greater flow to cover the whole product. The dark cocoa topping consists of cocoa and sugar powder distributed in vegetable fat, while cocoa topping with the added 7% non-fat milk fraction is regarded as a milk cocoa topping. This research aimed to determine and compare the impact of the ball mill, and five-roll mill and conching used for the production of dark and milk cocoa toppings regarding the particle size distribution, rheology properties and content of moisture, sucrose, fat and lactose. The obtained results showed that the volume-weighted mean parameter D (4,3) was lower in the samples produced in a ball mill. Additionally, the viscosity, linear and Casson, slightly increased in samples produced in a ball mill except for the milk cocoa topping which had 0.55 fold higher value of linear viscosity compared to the sample produced using a five-roll mill and conching. Regarding the results of NIR spectroscopy, it was found that the samples produced in a ball mill showed higher values of moisture, but lower values of sucrose, lactose and fat.

Transesterification of biodiesel from kapok seed oil (ceiba pentandra) using a natural heterogeneous katalyst (rice husk activation)

Biodiesel as a renewable energy source can be produced by a chemical reaction between vegetable oil or animal fat and short-chain alcohol such as methanol, ethanol or buthanol and is supported by a catalyst. This process is called transesterification. From an environmental point of view, the use of biodiesel has several advantages such as reducing carbon dioxide emissions, being non-toxic and biodegradable. Kapok seed oil has potential for exploitation, particularly as a raw material for the manufacture of biofuel. Kapok seeds (Ceiba pentandra) have the potential to be used as a feedstock for biodiesel because their oil content is quite high, around 18-25% oil. The controlled combustion of rice husks produces ash containing high purity amorphous silica. Amorphous silica can be obtained from RHA (rice husk ash) when rice husk is burned at a temperature of 700°C, and it is transformed into crystalline silica when burned at a temperature above 850 °C. This silica has many applications as a filler, adsorbent, catalyst support, star gel component and source for the production of premium silicon and its compounds. The aim of the research is to determine the transisterification process of biodiesel from kapok (Ceiba pentandra) seed oil. using a natural heterogeneous catalyst in It is an activated rice husk. The method used was the preparation of kapok seed samples and the extraction of sokhlet. Determination of free fatty acids (FFA) in kapok seed oil, activation of rice husk, manufacturing of biodiesel from kapok seed with addition of rice husk H2SO4 as catalyst. The characteristics of the biodiesel produced are Density: 859.88572 kg/m3 (SNI: 7182:2015) = 850-890 kg/m3), Viscosity: 2.45824 cSt (SNI: 7182:2015) = 2.3 – 6, 0 cSt, Calorific value: 7,374.5322 cal/g (SNI: 7182; 2015) = 7,100 -11,000 cal/ g, Devil's number: 48 (ASTM: D6751) = 47. Meanwhile, GC-MS with the highest values at all reaction times, namely Hexadec anoic acid, methyl ester (C17H34O2), methyl tetradecanoate (C15H30O2) and 9 - Octadecenoic acid (Z), methyl ester (C19H36O2) . The functional group found in kapok seeds is –OH.

Design & development of adulteration detection system by fumigation method & machine learning techniques

A novel method for discovery of adulteration in edible oil is proposed based on concept of refractive index and electronic sensors. The research work focusses on two distinct methodologies like employing datasets and implementing a fumigation technique that integrates real-time hardware for testing Edible oil Impurities. In the first method, the dataset taken into consideration contains spectral data collected using Advanced ATR-MIR Spectroscopy for pure oil and various levels of adulteration with Vegetable oil. Each and every edible oil has a certain value of refractive index. When such oils are contemned in a change adding adulterants, the value of its refractive indices also changes. This value of refractive index serves as a feature for testing the oil and helps us in detecting the adulteration. If Oil is adulterated with vegetable oils, the refractive index will be lower and with animal fats, the refractive index will be higher than that of pure Oil. While in Fumigation Method a hardware module is develop in which adulterated & pure oil samples are heated at 40–50 °C for 4.66 min and the volatiles that are generated by varying gas concentrations are forcefully passed through to the MEMS Gas Sensor-MISC-2714 and Multichannel Gas sensor. The conductance of the sensors changes according to the gases sensed by the sensors contributes to features extraction. The conductance value serves as a feature for the classifier to determine whether the sample is highly, moderately, or lowly contaminated. Thus, in proposed methods we use different algorithms based on machine learning like KNN, Random Forest, CATBOOST and XGBOOST to accurately reveal the adulteration. Amongst all the applied algorithm Random Forest (RF) Classifier & XGBOOST algorithm outperform well and gives 100% accuracy. The proposed work is used for identifying food adulteration in edible food products which helps us to feed Society with high-quality food.

Integrating environmental sustainability into food-based dietary guidelines in the Nordic countries

The overall aim of this paper was to provide background knowledge to the Nordic Nutrition Recommendations 2023 Committee for integrating environmental sustainability in a framework for national Food-Based Dietary Guidelines (FBDG) within the Nordics and Baltics. Additionally, this paper aims to give an overview of recent Nordic scientific literature on environmental impact of foods and dietary patterns and of the FBDG of the Nordics. Finally, we suggest methods for developing national sustainable FBDG. Nordic and Baltic studies on sustainability of diets were searched in August 2022 and complemented with additional relevant literature. The studies show that current diets are far from environmentally sustainable, exceeding planetary boundaries for most impact categories; meat and dairy products being the largest contributors to dietary greenhouse gas emissions (GHGEs) and land use. Scenario, modelling, optimisation and intervention studies confirm the potential of shifting towards more plant-based diets to improve overall diet quality in terms of both health and environmental sustainability. Such diets comprised of vegetables, fruits, legumes, potatoes, whole grain and refined cereal products, nuts, seeds and vegetable oils, with animal foods in moderate or limited amounts. The FBDG in the Nordics promotes more plant-based diets than the current average diet but could improve from further integration of environmental sustainability. To form basis for sustainable FBDG dietary modelling at the national level, prioritising health outcomes and nutritional adequacy is essential. Second, integrating environmental sustainability involves estimating the impact of food choices and amounts on GHGE, land and water use, eutrophication and biodiversity loss. Exploring positive and negative implications of fortified foods and supplementation in relation to nutrient intake, health and environmental sustainability may be needed. Implementing dietary transition requires solutions beyond FBDG to ensure affordability, acceptability and ease of adaption.

Farmers’ Socioeconomic Characteristics and Perception of Land Use Change Defining Optimal Agroforestry Practices in Khost Province, Afghanistan

Agroforestry practices evolve with the development of basic and advanced facilities, changes in natural and artificial factors of land, and land use trade-offs. This study aims to examine the farmers’ socioeconomic characteristics and perception of land use changes that define optimal agroforestry practices in Khost Province, Afghanistan. Data were collected from 662 farmers and analyzed using univariate Analysis of Variance (ANOVA) and Multivariate Analysis of Variance (MANOVA). The results found that forest and vegetable products, including fruits, berries, herbs, mushrooms, wild animals, oils, wood, honey, okra, eggplant, carrot, cucumber, pine nuts, pepper, and timber, have different impacts in terms of satisfaction with basic and advanced facilities, knowledge of land use changes, satisfaction with natural and artificial resources of land, and barriers to and economic benefits of land use. The limitations of this study included an absence of exogenous factors in the model such as climate change, financial conditions, market fluctuations, regulatory system, the area in which this study is selected, research design, and current condition of endogenous factors. Overall, this study defined a set of optimal agroforestry practices (expressed as crops and products) based on the farmers’ perception of land use changes in Khost Province, Afghanistan. This study provided useful insights for policymakers and development practitioners to promote agroforestry practice adoption and improve the socioeconomic development of agroforestry-dependent communities. Future works could explore the implications of agroforestry practices on the socioeconomic development of other dependent communities in Afghanistan.

Development of Oil Industry in Poland in the Context of the European Union

Oil industry is developing well in Poland. This study aimed to examine the development of the Polish oil industry after joining the European Union. The following questions were asked: What were the changes in the consumption of vegetable oils in Poland after EU enlargement in 2004? How did the production of vegetable oil change in Poland after EU enlargement in 2004? And has the liquidity of the Polish oil industry changed after EU enlargement in 2004? First, the changes in the oil industry were evaluated. This research proved the development of the fat industry. We used the regression model to analyze the impact of chosen factors on the economic situation of the oil industry in Poland. Rapeseed is the main source of oil for the edible oil and biodiesel industry. High prices of rapeseed increased the sown area of rapeseed. The production of crude rapeseed oil changed from 520.1 thousand tons in 2005 to 1440 thousand tons in 2023. Biofuels made from rapeseed oils are called first generation. Poland’s production of refined rapeseed oil changed from 386.5 thousand tons in 2005 to 541 thousand tons in 2023. These numbers confirm the development of edible oil and biofuel production. The gross profit increased from PLN 133 mln in 2005 to PLN 443.8 mln in 2023. The net profit of the fat industry increased from PLN 110 mln in 2005 to PLN 381.6 mln in 2023. The oil industry is characterized by high investment, which reached the level of PLN 232.9 mln in 2023. The investment rate in 2023 was PLN 1.96 %. The changes observed in the rapeseed market after Poland joined the EU affected the performance of vegetable oil and biofuel producers. The regression analysis proved the hypothesis that the monthly consumption of rapeseed oil is the main factor influencing the oil industry situation in Poland. The oil industry is important to the development of the whole economy. Particular attention should be paid to current liquidity, which is why a constant supply of money from sold oil and biodiesel is needed to cover costs.

Comparative study for the nonlinear properties of edible vegetable oils by using Z-scan technique

Comparative study for the nonlinear properties of edible vegetable oils by using Z-scan technique

Soil Physical Properties of Oil Palm Plantations in Tidal Areas of Peatland

Oil palm (Elaeis guineensis Jacq) is a plant with a higher vegetable oil content than other oil-producing plants, so palm oil is widely used as the main raw material for processed vegetable oil. The increasingly limited land area and the larger land area in Indonesia so that the space for plantation companies to expand the land is increasingly limited, so that the expansion of oil palm plantations began to change from optimal land to suboptimal land. Soil physical properties are properties related to the shape or original condition of the soil. This study aims to determine the physical properties of soil (texture, porosity, moisture content, soil color, particle density, and bulk density) on peatlands in the tidal area of PT Sinar Gunung Sawit Raya. This research used survey method with descriptive analysis. The soil samples taken were peat soil in the tidal area with purposive random sampling method at a depth of 30 cm. This research was conducted in November 2023 and continued in the laboratory for testing each soil physical properties. The results of the research on soil physical properties at PT Sinar Gunung Sawit Raya on peatlands in tidal areas show that the soil texture is loamy sand, soil porosity is good, moisture content is relatively normal, soil color looks relatively dark, particle density is still low and bulk density value shows low. Keywords: Loamy sand, Oil palm, Peat soil, Soil color, Soil texture.

Unveiling a novel exopolysaccharide produced by Pseudomonas alcaligenes Med1 isolated from a Chilean hot spring as biotechnological additive

Exopolysaccharides (EPSs), a constitutive part of bacterial biofilm, act as a protecting sheath to the extremophilic bacteria and are of high industrial value. In this study, we elucidate a new EPS produced by thermotolerant (growth from 34–44 °C) strain Pseudomonas alcaligenes Med1 from Medano hot spring (39.1 °C surface temperature, pH 7.1) located in the Central Andean Mountains of Chile. Bacterial growth was screened for temperature tolerance (10–60 °C) to confirm the thermotolerance behaviour. Physicochemical properties of the EPS were characterized by different techniques: Scanning Electron Microscopy- Energy Dispersive X-ray Spectroscopy (SEM-EDS), Atomic Force Microscopy (AFM), High-Performance Liquid Chromatography (HPLC), Gel permeation chromatography (GPC), Fourier Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR), and Thermogravimetric analysis (TGA). Whole genome of P. alcaligenes Med1 has also been studied in detail to correlate the structural and functional characteristics with genomic insight. The EPS demonstrated amorphous surface roughness composed of evenly distributed macromolecular lumps composed of mainly carbon and oxygen. The monosaccharide analysis has shown the presence of glucose, galactose, and mannose sugars at different ratios. TGA revealed the high thermal stability (315.3 °C) of the polysaccharide. The GPC has shown that Med1 is a low molecular weight polysaccharide (34.8 kDa) with low PI. The 2D-NMR linkage analysis suggests a diverse array of glycosidic bonds within the exopolysaccharide structure. The functional properties of the EPS were evaluated for food industry applications, specifically for antioxidant (DPPH, FRAP an H2O2). Extracted Med1 EPS revealed significant emulsification activity against different food grade vegetative oils (Coconut oil, Corn oil, Canola oil, Avocado oil, Sunflower oil, Olive oil, and Sesame oil). The highest 33.9% flocculation activity was observed with 60 mg L−1 EPS concentration. It showed water-holding (WHC) of 107.6% and oil-holding (OHC) capacity of 110.8%. The functional EPS produced by Pseudomonas alcaligenes Med1 from Central Andean Chilean hot spring of central Chile can be a useful additive for the food-processing industry.

Impact of morphology of hydrophilic and hydrophobic bentonites on improving the pour point in the recycling of waste cooking oils

Waste Cooking Oils (WCOs) are generated worldwide through industrial food processing and household use, posing environmental concerns upon disposal. Bentonites often showed to be effective in removing minor contaminants in vegetable oil refining. The present research focused on the processing of raw WCOs using four bentonites, two commercials and two obtained by ball milling of the latest. The different bentonites (hydrophobic and hydrophilic) were characterized before and after ball milling (BM) procedure, including an exhaustive analyses of crystal structure, morphology and surface area via x-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and N2-physisorption technique. Optimization of BM processing in terms of milling time was achieved within 60 min. The milled powders were then tested as adsorbents for recycling WCOs with different degrees of decomposition (expressed in terms of free fatty acids, FFAs, content). Employing a design of experiments approach, the impact of five parameters (FFAs content, temperature, specific surface area, stirring, BM time) on the resulting pour point (PP), taken as a quality benchmark for recycled oil, was assessed. Quantitative multivariate statistical analysis revealed temperature's negligible role and identified the significant impact of two characteristics of the bentonite (specific superficial area and ball milling time), as well as the relevant role of the stirring during the treatment. At the end, hydrophilic bentonite resulted able to improve the PP of waste oils with a low content of free fatty acids of about 10 °C.

Epoxidation Showdown: Unveiling the Kinetics of Vegetable Oils vs Their Methyl Ester Counterparts

Epoxidation Showdown: Unveiling the Kinetics of Vegetable Oils vs Their Methyl Ester Counterparts

Quality indicators of new sunflower (Helianthus annuus L.) varieties for high oleic and oilseed use under different growing conditions

Purpose. To study the influence of steppe and forest-steppe climatic conditions on the yield, oil content in seeds and fatty acid composition of oil in new sunflower varieties of high oleic and oilseed use. Methods. The research was conducted in accordance with “Methods of qualification examination of plant varieties for their suitability for distribution in Ukraine (general part)” and “Methods of qualification examination of plant varieties for their suitability for distribution. Methods of determining quality indicators of plant production”. The following methods were used in the research: laboratory, comparison, generalisation, mathematical statistics, analysis and synthesis to draw conclusions. Results. The fatty acid composition of the seeds of new varieties of sunflower (Helianthus annuus L.) of high oleic and oilseed use, grown in different soil and climatic conditions, was studied. According to the results of the analysis in the steppe zone, the variety ‘LG50648’ has the highest economic and value characteristics: oil content (51,0%), oleic acid (85.1%), yield (3.11 t/ha); varieties ‘SULIANO’ and ‘MAS 908HOCP’ – yield (3.40 and 3.91 t/ha) and oleic acid content (85.8 and 86.1%) regardless of the gro­wing conditions. It was found that high oleic sunflower varieties ‘MAS 908HOCP’, ‘LG50648’, ‘SULIANO’ grown under steppe and forest-steppe conditions yielded higher quality oil. The maximum content of oleic acid in 2022–2023 was characteristic of the seeds of the varieties ‘MAS 908HOCP’ (86.1% in the steppe and 85.8% in the forest steppe) and ‘SULIANO’. The hi­ghest linoleic acid content was obtained in the seeds of the oilseed use varieties ‘STK104’ (62.9% in the steppe and 58.5% in the forest steppe) and ‘STK103’ (61.2% in the forest steppe). Among the high oleic varieties, the best results were obtained with ‘LG50648’ (5.7% in the steppe and 5.9% in the forest steppe). Conclusions. Oil content of sunflower varieties and fatty acid composition are determined by varietal characteristics of sunflower and environmental conditions. Modern sunflower varieties, which are included in the State Register of Plant Varieties of Ukraine, have high yield potential and can provide a large yield of vegetable oil per unit area. Agroclimatic conditions have different effects on the gross seed yield and oil quality in the conditions of the forest steppe and steppe of Ukraine.

Formulation of a High-Quality Cold-Pressed Vegetable Oil (Virgin) Based on a Blend of Four Oilseeds

Vegetable oils are crucial for the human diet, providing energy and essential fatty acids. This study investigates the formulation of a high-quality cold-pressed vegetable oil blend from rapeseed, sunflower, sesame, and safflower, chosen for their agronomic benefits, cost-effectiveness, and reduced environmental impact. For the first time, this study is carried out in order to enhance the nutritional profile of these blend oils compared to commercial oils. The study’s results showed that all formulated blend oils had higher total polyphenol and flavonoid content. Specifically, the blend of 1/2 rapeseed, 1/4 sunflower, 1/8 sesame, and 1/8 safflower had an oil yield ranging from 37 to 39% and was rich in total polyphenols (18 mg GAE/100 g), total flavonoids (2 mg/g), antioxidant activities (52%), oleic acid (46.4%), and saturated fatty acids (11%), with a balanced omega-6/omega-3 ratio (2.5). Consuming this blend oil offers a healthier choice rich in nutrients and natural antioxidants. This could open new market opportunities and cater to the growing demand for healthier oil options, especially since it is extracted without a refining process. Further research could focus on the sensory attributes and consumer acceptance of these blend oils to ensure market success, noting that sesame and sunflower involve agreeable pronounced aromas.

Self-Healable Hydrogels from Vegetable Oil: Preparation, Mechanism, and Applications.

Hydrogels are indispensable for a variety of applications. Conventional biomaterial-based hydrogels, typically made from proteins or polysaccharides, often suffer from high costs, poor mechanical properties, and limited chemical functionality for modification. In this work, we present a novel hydrogel developed from modified castor oil, which is a renewable and cost-effective resource. Castor oil-based oligomer (CG) was synthesized using glycidyl methacrylate and triethylamine via ring-opening polymerization. The oligomer formed a gel only with Cu2+ ions among the various systematically studied metal ions. Comprehensive density functional theory calculations, atoms in molecules analysis, and steady and dynamic shear rheology were conducted to investigate the metal-binding sites and metal-oligomer interactions as well as the self-healing and viscoelastic properties of the oil-based hydrogels. The hydrogel exhibited 94% self-healing efficiency and performed as a recyclable rhodamine B dye adsorbent (73-90%). This innovative approach offers a novel, cost-effective, and sustainable alternative to traditional hydrogels, paving the way for advanced applications.

Relationship between emotional eating and nutritional intake in adult women with overweight and obesity: a cross-sectional study

BackgroundEmotional eating (EE) is particularly prevalent in overweight or obese women, who may turn to food as a way to cope with stress, sadness, or anxiety. Limited research has been conducted on the association between EE and nutritional intake. Therefore, present study was designed to explore this association in adult women with overweight and obesity.MethodsIn this cross-sectional study, the relationship between EE and nutritional intake in 303 overweight and obese women (aged 18–50 years) was examined. The researchers used the validated semi-quantitative Food Frequency Questionnaire (FFQ) to assess participants’ nutritional intake and the Dutch Eating Behavior Questionnaire (DEBQ) to evaluate their eating behavior. To determine the association between EE and nutritional intake, we employed the multiple linear regression analysis.ResultsThe frequency of high intensity EE was 64.4% among the study participants and the mean total score of EE subscale of DBEQ was 2.32 ± 0.81. The total score of EE was positively associated with the energy intake (β = 0.396, P = 0.007), even after adjusting for age and BMI. In addition, a significant inverse association was found between the score of EE and the daily intake of calcium (β= -0.219, P = 0.026), riboflavin (β= -0.166, P = 0.043), and vitamin B12 (β= -0.271, P = 0.035), independent from energy and age. Also the results showed a significant positive association between the score of EE and the frequency of daily intake of cracker, muffin, cake, cream cake, pastry, candy, ice cream, pickles, melon, hydrogenated vegetable oil, peanut, salted and roasted seeds, and corn-cheese puff snack.ConclusionThis study found that overweight or obese women with higher intensity of EE might have a higher intake of energy and a lower intake of dietary calcium, riboflavin and vitamin B12. Integrating a balanced diet with psychotherapy is suggested to help individuals with EE reducing the urge to eat in response to emotions.

Corn Stover Lignin as a Solid Acid Catalyst for the Esterification of Oleic Acid

AbstractThe catastrophic ramifications of fossil fuels on the environment have prompted the search for renewable energy sources. Over the recent decades, biodiesel has garnered attention as a promising direct alternative to diesel fuel; however, reliance on homogeneous catalysts and the requirement for refined vegetable oil feedstocks present financial and sustainability concerns. Thus, there exists a need for the development of sustainable and cost‐effective catalytic solutions. Herein, the application of lignin, an abundant and renewable biomass, as an effective heterogeneous catalyst is reported for biodiesel production via the esterification of oleic acid. Lignin is extracted from corn straw using sulfuric acid, which endows sulfonic acid groups (0.85 mmol g−1) to its structure allowing it to act as an acid catalyst without additional post‐treatments. Conversion of oleic oil to biodiesel is achieved at 97% using a 1:3 oleic acid to methanol molar ratio with a 5 wt.% catalyst loading at 90 °C after only 30 min. Moreover, the catalyst exhibits a remarkable turnover frequency of 2.61 min−1 proving its efficiency. These findings demonstrate that heterogeneous catalysts can be prepared from biomass waste offering a significantly cheaper and less intensive synthesis process and allowing for a paradigm shift to non‐edible and waste cooking oils.

Green and sustainable technologies for extraction of carotenoids from natural sources: a comprehensive review.

In recent years, driven by increasing consumer demand for natural and healthy convenient foods, the food industry has been shifting from synthetic to natural products. This shift is also reflected in the growing popularity of non-conventional extraction methods for pigments, which are favored for sustainability and environment-friendliness compared to conventional processes. This review aims to investigate the extraction of carotenoids from a variety of natural sources, including marine sources like fungus, microalgae, and crustaceans, as well as widely studied plants like tomatoes and carrots. Additionally, it delves into the recovery of valuable carotenoids from waste products like pomace and peels, highlighting the nutritional and environmental benefits. The review also emphasizes the role of green solvents such limonene, vegetable oils, ionic liquids, supercritical fluids, and natural deep eutectic solvents in effective and ecologically friendly carotenoid extraction. These technologies support the ideas of a circular and sustainable economy in addition to having a smaller negative impact on the environment. Overall, the present study highlights the crucial importance of green extraction technologies in achieving the dual goals of sustainability and public safety.

Evaluating the Performance of Agricultural Tractor Engine using Cottonseed Oil Biodiesel

The energy demand has been significantly increasing around the world in the last century. Conventional fossil fuels as one of the sources has been highly demanded due to its negative environmental effect. The growing demand for energy stimulated the development of renewable and eco-friendly alternative energy sources. Produced from vegetable oils and animal fats, biodiesel is a renewable, sustainable, and biodegradable fuel. It can be used as an alternate fuel to conventional diesel (CD) in compression ignition (CI) engines. The Belarus 920 tractor, with a maximum output of 74.5kW, was put through a Power Take Off (PTO) test in this study to assess its performance and emission components when fueled with conventional petroleum diesel, B20, B50, and B100 of Cotton Seed Oil Biodiesel (CSOME). The performance results showed that the power and Break Thermal Efficiency (BTE) fell, while the BSFC improved, when the tractor was fueled with neat CSOME and its mixes.