Onion Skin Extract Research Articles

Aspects of quercetin stability and its liposomal enhancement in yellow onion skin extracts

Quercetin is a flavonoid that occurs in many types of fruit and vegetables and is stable for no longer than 4.5 h in the investigated pH range (6.0–8.0), even at 4 °C in the dark. At higher temperatures, the degradation/oxidation process is much faster. Simple but effective proliposomal encapsulation was used to protect the quercetin from environmental conditions such as pH. With this approach, 65 to 90% of pure quercetin and quercetin-rich onion extract was kept after >60 days under conditions that favoured its oxidation (pH 7.4). In addition, the encapsulated quercetin decreases the lipid peroxidation induced by pulsed UV light by >50%. At a mass ratio of 1:100 quercetin to lipids (w/w), the liposomes remained intact in solutions for six months. Quercetin in lipid bilayers simultaneously protects the unsaturated lipids from peroxidation.

Phytochemical characterization of selected agro-waste extracts as kinetic inhibitors in methane hydrates formation

In this study of gas hydrate inhibition, the bio-active components (phytochemicals) and the influence of functional moieties and chemical structures on selected bio-inhibitors' performance were investigated by advanced analytical techniques. The agro-waste materials of interest are: orange mesocarp (Citrus sinensis (L)) extract (OME), red onion skin (Allium cepa) extract (ROSE), kolanut tesla (Cola acuminata) extract (KTE), coconut coir dusk (Cocos nucifera) extract (CCDE) and peanut skin (Arachis hypogea) extract (PSE). A CO2-enhanced supercritical fluid extraction (SFE) technique was used to extract the bioactive components from their parent materials. After the extraction, advanced analytical techniques including FTIR, NMR and HP-TLC with densitometry were used to identify and isolate functional groups, structurally characterize and quantify the bioactive compounds in the extracts primarily focusing on phenolic acids, flavonoids and tannins. A Bruker 500MZ NMR spectrometer and a CAMAG-semi-automatic HP-TLC system were used for the structural characterization and quantification respectively. Based on the number of anti-oxidants and radicals scavenging characteristics of the individual extracts' polyphenolic and tannin components, the expected hydrates inhibition capacities of the bio-extracts are in the magnitude: CCDE > ROSE > PSE > OME > KTE. The extracts are readily biodegradable and non-toxic and therefore do not pose ecological threat unlike PVP with only 31.50% biodegradation rate and may result in serious ecological risks in offshore environments. Lastly, the numbers of hydroxyl (OH) and meth-oxyl (MeoH) groups are the principal factors that influence the bio-inhibitors performance with hydroxyl group number being more important than that of the meth-oxyl group.

Performance evaluation of glutaraldehyde-modified red onion skin extract as oilfield scale inhibitors

Scale deposition occurs due to changes during injection operations and the mixing of incompatible brines. Scale inhibitors are used to mitigate such occurrences. The inhibition efficiency of the glutaraldehyde-ROSE resin (ROG) was evaluated in synthetic brines containing CaSO4, BaSO4, and CaCO3 under static conditions according to NACE standard methods. The formulated scale inhibitor was compatible with the brine and thermally stable. The inhibition studies of ROG revealed optimal inhibition of 89% at 80 ppm and 58% at 100 ppm at 90 °C and 22 h, respectively, for BaSO4 and CaCO3 scales, while for CaSO4 scales, optimal inhibition of 67% was observed at 100 ppm, 71 °C, and 22 h. On comparison, the Commercial Scale Inhibitor (CSI) showed optimal inhibition of 97% at 100 ppm and 94% at 80 ppm at 71 °C and 22 h, respectively, for BaSO4 and CaSO4 scales, while for CaCO3 scales, optimal inhibition of 98% was observed at 80 ppm, 90 °C, and 22 h, respectively. This indicates that ROG efficiently mitigated the formation of CaSO4, BaSO4, and to some reasonable extent, CaCO3 scales, and its inhibition performance compared favorably with the CSI, thus unveiling its potential for consideration as a green oilfield scale inhibitor.

POTENTIAL OF DAYAK ONION SKIN (ELEUTHERINE PALMIFOLIA) EXTRACT AS AN ALTERNATIVE INDICATOR FOR ACID BASE TITRATION PRACTICUM

Synthetic indicators such as phenolphthalein are used during acid-base titrations to determine the end point of the titration. These indicators are not environmentally friendly and the price is high. To overcome this, it is necessary to study the potential of natural indicators available in the environment, one of which was Dayak onion skin which has not been utilized after the tubers have been taken as an anti-cancer herbal medicine. The aim of this research was to determine the potential of Dayak onion skin (Eleutherine Palmifolia) as a natural indicator in acid-base titrations. The sampling collection of Dayak onions was done randomly in the city of Palangka Raya, Central Kalimantan. The method used in this study employed experimental techniques in the chemistry laboratory of FKIP ULM with the following steps: 1) Maceration of smoothed Dayak onion skin with 96% ethanol for 1, 2 and 3 days 2) Qualitative test of anthocyanin, color test with buffer pH 1-14, 3) Absorption measurement with a UV-Vis spectrophotometer at a wavelength of 200 - 400 nm, 4) Application of the extract as an indicator in acid-base titrations. The results showed that the optimum maceration time was on day 3 with an absorption of 4,520 at a wavelength of 380 nm. The application on the HCl – NaOH titration with a titration end point volume of 9.11 mL showed a color change from yellow to straw yellow, while the comparison indicator PP had a volume change of 8.57 mL with a color change from colorless to pink. The CH3COOH – NaOH titration gave a result of 11.43 mL and the PP indicator was 11.01 mL. For the NaHCO3 – HCl titration, the end point volume of the titration was 9.93 mL with a straw yellow – yellow color change and the MO indicator comparison was 10.27 mL with an orange – red color change. From the results of this research, there was a significant color change at the end point of the titration, so it can be stated that Dayak onion skin extract had the potential to be an alternative indicator in acid-base titration practice so that it can be a solution in reducing chemical pollution in the environment.

Natural cellulosic biofunctional textiles from onion (Allium cepa L.) skin extracts: A sustainable strategy for skin protection

Cellulosic fabrics made of cotton, linen, bamboo, hemp, and nettle, were selected for the eco-sustainable production of colored biofunctional textiles, using natural dyes from onion skin of the Dorata di Parma (Allium cepa L.) variety. Dyeing experiments were performed in net water with and without pre-treatment with alum, tin chloride, and tannic acid as mordants. The color and the UV-protection factor (UPF) were evaluated through UV–visible spectroscopy. The treatment with onion skin extract induced a relevant increase of UPF in all investigated fabrics, promoting the protection category from insufficient (UPF<15) to good for linen (UPF = 21–26), up to very good and excellent for cotton (UPF = 35–66) and bamboo (UPF = 48–56), respectively. To mimic the direct contact with the skin, textile samples were immersed in artificial sweat where dyed cotton, hemp, and nettle were found to promote higher phenolic release (0.28–0.50 mg gallic acid equivalents/g textile) than linen and bamboo (0.12–0.22 mg gallic acid equivalents/g textile). The obtained “biofunctional sweat” did not impact on the survival of primary human dermal fibroblasts (HDF) and skin keratinocytes (NCTC2455), while protected these cells against heat shock and reduced reactive oxygen species levels upon exposure to pro-oxidant and inflammatory agents as H2O2 and lipopolysaccharide, respectively. Increased activity levels of the H2O2-scavenging enzyme Catalase (CAT) were also observed, thus demonstrating enhanced stress response and homeostatic capability of these cells. This study provides evidence that extracts from onion waste can be used to functionalize cellulosic fabrics conferring properties as natural shield against UV radiation, and antioxidant and anti-inflammatory materials thus holding potential in skin protection and prevention of dermatological diseases.

Pengaruh Jenis Mordan Dan Lama Waktu Pencelupan Terhadap Kualitas Warna Kain Batik Dengan Pewarnaan Alam Kulit Bawang Merah Menggunakan Proses Post-Mordanting

Red onion skin is one of the wastes that can be used as a natural dye because it contains anthocyanins which are one of the natural color pigments. The availability of red onion skin waste is very abundant, especially from household waste and industrial waste which has not been optimally utilized. The purpose of this study was to determine the effect of fixation type with different dyeing times on the color quality of batik fabric. This research method is an experiment by varying the fabric treatment in the pre-mordanting process, time variations of 30 and 60 minutes, and fixation variations, namely alum, arbor, and quicklime. The results of the study obtained that red onion skin extract is very good as a natural dye for dyeing batik fabric, the value of the color fastness test at 40 ℃ soap washing and cloth rubbing (wet) shows good quality with an average value of 4 and 4 - 5. The value of the L *, a *, b * color difference test and the results of visual observations on the pantone color produce an orange-red color that contains dominant color elements towards reddish and yellowish.

Red onion (Allium ascalonicum L.) skin as an antibacterial on the growth of Staphylococcus aureus

The main bacteria that cause infection in humans is Staphylococcus aureus. Efforts to prevent infectious diseases caused by bacteria can be made by using plant parts that have medicinal potential. One part of the plant that needs to be explored for its potential is the skin of shallot bulbs (Allium ascalonicum L.). This research aimed to determine the effect of red onion skin extract on the growth of S. aureus bacteria. The research design is experimental. The samples in this study were 1 kg of red onion skin and a bacterial sub-culture of S. aureus ATCC: 25923. Extraction was carried out using the maceration method using 96% ethanol solvent and evaporated using a rotary evaporator and water bath. The antibacterial test was carried out by administering 30 µg chloramphenicol (positive control), sterile distilled water (negative control), and red onion skin extract with concentrations of 60%, 65%, 70%, and 75% with 3 repetitions. All treatments were given to S. aureus at 30 µL each using the Kirby-Baeur method. The research instrument was an observation sheet of the diameter of the inhibition zone. Data analysis used One-Way ANOVA. The results of this study show that ethanol extract of red onion skin with concentrations of 60%, 65%, 70%, and 75% was able to produce S. aureus inhibition zone diameters of 3.5 mm, 4 mm, 4.2 mm, and 4.3 mm. The results of the One-Way ANOVA test showed a significance value of 0.15 (sig&gt;0.05), not proven to be able to significantly inhibit the growth of S. aureus. The conclusion shows that red onion skin extract as an antibacterial is not able to significantly inhibit the growth of S. aureus.

Use of red onion skin (Allium cepa L.) in the production of bioactive extract and application in water-absorbing cryogels based on corn starch

Onion skin is biomass commonly discarded in the environment, rich in bioactive compounds with antioxidant and antimicrobial potential; thus, we propose valorizing this residue using cryogels as carriers. This study aimed to produce bioactive cryogels based on corn starch and red onion skin extract (ROSE). Cryogels were prepared by starch gelatinization, with five freeze/thaw cycles, adding 5, 10, and 15% (w/w) of ROSE. The ROSE presented total phenols, flavonoids, and volatile organic compounds (VOCs), with esters being the majority. These compounds are responsible for the biological activity of ROSE. The cryogels displayed homogeneous morphology and randomly oriented pores. The water absorption capacity of the cryogels reached 658.3%. The cryogels showed low density reaching 0.153 g/cm3; high porosity of up to 83.76%; thickness of up to 0.83 cm; and low moisture of up to 3.4%. The texture profile showed that the incorporation of ROSE increased hardness. The ROSE incorporated in the cryogel had higher thermal stability when compared to its free form, increasing degradation temperature of about 155.28 °C. The cryogels with ROSE presented high antioxidant activity against ABTS and DPPH radicals ranging from 45.4 to 90.5%. In addition, they showed antibacterial action, with total inhibition of the proliferation of pathogenic bacteria Salmonella Typhimurium and Listeria monocytogenes. The cryogel, without ROSE presented greater in vitro degradability due to the breaking of the glycosidic bonds. The cryogels are efficient matrices with the potential for application as water absorbents in fresh food products that release exudates and carriers of antioxidant and antimicrobial compounds.

Evaluation of Antioxidant, Antimicrobial, and Anticancer Properties of Onion Skin Extracts

Onion skins (OS) are a by-product of onion processing that causes both biological and environmental problems. Thus, OS could be used sustainably and as means of circular economy since they contain valuable bioactive compounds that can be used for the production of high-added-value products. This study aims to evaluate the potential antioxidant, antimicrobial, and anticancer properties of onion OS crude extracts. The extracts were prepared using different solvents (i.e., water, ethanol, and their mixtures) and evaluated for their total phenolic content and phytochemical composition, their antioxidant activity (using the DPPH radical scavenging assay, the ferric reducing antioxidant power (FRAP) assay, and the hydrogen peroxide scavenging assay), anti-inflammatory properties, as well as for their antimicrobial (against Listeria monocytogenes, Escherichia coli O157:H7, Bacillus cereus, Enterococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhimurium, and Yersinia enterocolitica) and anticancer (against human breast cancer cells (MCF-7) and human glioblastoma cells (U-87 MG)) activity. The results revealed that the extracts contained a significant amount of phenolic compounds, ranging between 348.71 and 795.11 mg gallic acid equivalents per g of dry weight. The extracts showed promising cytotoxic effects (up to ~40%) against cancer cell lines, indicating their potential as a natural source of anticancer agents. Additionally, the extracts exhibited strong antioxidant and antimicrobial activity against the tested microorganisms. The findings of this study suggest that OS crude extracts could be a promising candidate for developing natural functional foods and pharmaceuticals. They could be used as natural alternatives for the prevention and treatment of various diseases caused by oxidative stress, microbial infections, or cancer since they are a valuable source of bioactive compounds that can be used for various applications such as food preservation, nutraceuticals, and pharmaceuticals.

Synthesis of Flavonoids Derivatives using Polar and Non-Polar Extract of Red Onion Skin (Quercetin) with Cashew Nut Shell Liquid

Red Onion skin extract and Cashew nut shell liquid has been considered as one of the best antioxidant and anti-inflammatory precursors, as it contains various polyphenols and important flavonoids. In this research, flavonoid derivatives were successfully synthesized from polar and non-polar extract of red onion skin, non-polar extract of cashew nut shell liquid and a combination of the onion skin extracts and cashew nut shell liquid. In this process, crude red onion skin extract was obtained using potassium carbonate via maceration process and acetone via soxhlet extraction. Cashew nut shell liquid was extracted using acetone via soxhlet extraction. The synthesis was carried out via the Williams ether synthesis using 1,2-dibromoethane in the presence of a base catalyst. FTIR of the products confirmed its modification. From the result, it can be concluded that the non-polar extract performed better than the polar extract. Hence for further studies, non-polar solvents should be considered for extraction.

Comparative performance evaluation of modified red onion skin extract as surface active agents for tertiary oil recovery

ABSTRACT Biomass-based recovery agents are fast becoming an innovative, novel solution to the increasing need for eco-friendly, cost-effective chemical agents as the need to cut production cost becomes imperative. Recent studies showed that certain natural materials if modified can suitably replace synthetic chemicals. Red Onion Skin Extract (ROSE) was chemically modified using furfuraldehyde (ROF) and urea (ROFU) and evaluated to determine its oil displacement efficiency at reservoir conditions by evaluating the fluid compatibilities. Two synthetic brine was formulated to replicate the formation of brine with divalent ions present. Compatibility test of the aqueous solution produced highly soluble, compatible fluids at varying temperatures. Type I microemulsion was observed in both surfactants. Sandstone core analysis was performed to ascertain how effective the individual modified derivatives are in recovering bypassed oil at reservoir temperature (90 °C) and pressure (9000 psi). An additional recovery of 22.7% OIIP and 11% OIIP was attained during ROF and ROFU flooding, respectively. The ROSE derivatives show good performance in displacing heavy oil even at reservoir conditions.

Removal of Ni2+ and Pb2+ IONS from Aqueous Medium Using Unmodified and 4-Aminophenol Modified Red Onion Skin Extract

The extraction of Ni2+ and Pb2+ ions from aqueous medium using unmodified (ROSE) and the 4-aminophenol modified red onion skin extract (ROSEDS) has been successfully achieved. Cold solvent extraction technique using a 50:50 acetone/water ratio was used for extraction of the red onion skin at 125 µm mesh size. The metal concentrations were determined using Atomic Absorption Spectrometry technique. Optimum percentage removal of the metal ions was achieved at pH 6.26 for Ni2+ (89.40 % for ROSE and 97.60 % for ROSEDS) and pH 7.57 for Pb2+ (80.10 % for ROSE and 82.56 % for ROSEDS). Optimum adsorption capacities of ROSE and ROSEDS for Ni2+ were 6.30 mg/g and 7.10 mg/g respectively; while for Pb2+ ions, values obtained for ROSE and ROSEDS were 5.87 mg/g and 6.34 mg/g respectively. Varying adsorbents dosage at fixed metals ion concentration yielded optimum percentage removal of 89.90 % and 97.90 % for Ni2+, while 86.85 % and 90.80 % for Pb2+, using ROSE and ROSEDS, respectively. Adsorption capacities of the adsorbents varied inversely with adsorbent dosages. In general, 4-aminophenol modified red onion skin extract (ROSEDS) gave comparatively, better results for the extraction of Ni2+ and Pb2+ ions from aqueous medium; relative to the unmodified red onion skin extract (ROSE). Additionally, extraction of Ni2+ ions gave higher percentage removal values in both adsorbents when compared to extraction of Pb2+ ion under similar conditions. This result has been attributed to differences in their ionic radii. REVIEW ARTICLE | April 4, 2023

ANTHOCYANINS: A HUE FOR HISTOLOGY - SYSTEMATIC REVIEW

Background: Many histological stains cause health hazards to technicians, pathologists, and researchers. The hazard-free and eco-friendly natural anthocyanins have the potential to be a new source for histological stains. This study aims to systematically review the use of plant products containing anthocyanin for histopathological diagnosis. Methods: A comprehensive literature search was done using suitable keywords on Wiley, PubMed, Scopus, Google Scholar, and Web of Science databases. A total of 30 articles were selected for systematic review, where data obtained from the studies were tabulated. Results: About 90% of the reviewed studies have proven that anthocyanin-containing plant products may be used as natural stains. Out of the 30 studies, 49% involved the use of Hibiscus extract, 11% utilised mulberry extract, 9% utilised pomegranate, another 9% involved rose, and the remaining ones utilised black plum, black rice, butterfly pea, the flame of woods, onion skin, and red poppy extracts. Almost 40% of the studies concluded that aqueous extracts are superior to alcohol ones, and 46% used either iron or alum as mordant. Conclusion: Natural stains containing anthocyanin could be a better alternative to synthetic histological stains. Further extensive studies should be conducted to observe the use of these stains in pathological diagnosis.

Extraction of Cu2+, Ni2+ and Zn2+ Using 2-Aminophenol Modified Quecertin and Red Onion Skin Extract from Aqueous Medium

Red onion skin extract and quercetin dihydrate modified with 2-aminophenol were used as adsorbents to extract Cu2+, Ni2+ and Zn2+ from their aqueous solutions. The unmodified and modified adsorbents were characterized using some physicochemical parameters such as melting point, solubility in different solvents, thin layer chromatography and FTIR. The FTIR revealed presence of various functional groups in the structure of modified and unmodified red onion skin extract and quercetin dihydrate. Extraction studies result showed that the maximum pH for metal removal is 3.30, 8.00 and 6.46 for Cu2+, Ni2+ and Zn2+ respectively. The percentage removal and adsorption capacities of the metal ions increased with increasing contact time, dosage and metal ion concentration. Quercetin dihydrate-diazonium salt (QDDS) showed a higher percentage removal for Cu2+ (99.19 %) than Ni2+ and Zn2+ while Red onions skin extract- diazonium salt (ROSEDS) showed a similar percentage removal for Cu2+ (98.57%) &gt; Ni2+ (84.51%) &gt; Zn (66.86%). Heavy metal ions were removed in this order; Cu2+ (99.19%) &gt; Ni2+ (87.64%) &gt; Zn2+ (71.56%) using QDDS. The adsorption kinetic studies and isotherm studies indicated that Pseudo-second order kinetics and Freundlich isotherm model best describe the adsorption processes. Therefore, ROSEDS and QDDS have proven to be an effective adsorbent for heavy metal ions from waste waters and industrial effluents.

Quercetin extraction from small onion skin (Allium cepa L. var. aggregatum Don.) and its antioxidant activity

In the present study, the maximum yield of quercetin was optimized for the ethanol extraction of small onions (Allium cepa L. var. aggregatum Don.), and the antioxidant activity was investigated in vitro. The extraction of quercetin from the small onion skin was carried out through ethanol solvent extraction with different ratios of ethanol and water. Ethanol: water ratio produced the highest quercetin from the onion skin. RP-HPLC analysis of the extracted material showed 2, 122 mg/g of quercetin and 0.34 mg/g of isorhamnetin. A total of 301.03 mg GAE/g dry weight and 156 mg/g quercetin equivalents were found in the onion skin extract. DPPH and ABTS free radical scavenging potentials of the tested extract (90:10 v/v) were dose-dependent, with IC50 values of 62.27 μg/mL and 53.65 μg/mL, respectively. Therefore, the present study reports that small onion skin extract rich in quercetin may serve as a promising antioxidant and anticancer agent.

Effect of Different Onion Skin Extracts on Physicochemical, Microbial and Sensory Properties of Grilled Chicken

Effect of Different Onion Skin Extracts on Physicochemical, Microbial and Sensory Properties of Grilled Chicken

EVALUASI FISIK KRIM ANTIINFLAMASI EKSTRAK KULIT BAWANG MERAH DENGAN VARIASI KONSENTRASI TRIETANOLAMIN DAN ASAM STEARAT

Inflammation is the body's defense function against the entry of organisms and other disturbances. The drugs used often have an effect on gastrointestinal disorders, so other alternative treatments are being developed that can minimize side effects. The quarcetin content of shallot skin extract, which has anti-inflammatory activity, is formulated in a cream dosage form. The emulsifiers in the m/a cream formula are stearic acid and triethanolamine (TEA). This study aims to determine the physical evaluation of an anti-inflammatory cream containing shallot skin extract with variations in concentrations of TEA and stearic acid. The method used in this study is the experimental method. Formulations I, II, and III with varying concentrations of TEA and stearic acid (2:8%, 3:10%, and 4:12%) were used. Tests carried out included organoleptic tests, homogeneity, pH, spreadability, and adhesion. The cream formula passed the organoleptic test with a distinctive shallot smell, semi-solid form, brownish red color, all formulas were homogeneous, pH 5.264-6.417, spreadability 3.849-6.251 cm, and adhesion 83-132 seconds. Higher concentrations of TEA and stearic acid had an effect on adhesion and spreadability but had no effect on organoleptic properties, homogeneity, or pH. Onion skin extract cream with a concentration of TEA:2%:8% stearic acid gave the best physical quality.

Electron Beam Irradiation Cross-Linked Hydrogel Patches Loaded with Red Onion Peel Extract for Transdermal Drug Delivery: Formulation, Characterization, Cytocompatibility, and Skin Permeation

The use of bioactive molecules derived from medicinal plants in wound healing has recently attracted considerable attention in both research and public interest. In this work, we demonstrated the first attempt to incorporate the extract from Thai red onion skins in hydrogel patches intended for transdermal delivery. The red onion skin extract (ROSE) was first prepared and evaluated for cytotoxicity by MTT assay with both L929 and human dermal fibroblast cells. Hydrogel patches with porous microstructure and high water content were fabricated from polyvinyl alcohol (PVA) by electron beam irradiation and characterized for their physical, mechanical, morphological, and cytocompatible properties prior to the loading of ROSE. After decontamination by electron beam irradiation, the in vitro release profile exhibited the burst release of extract from ROSE-coated hydrogel patches within 5 h, followed by the sustained release up to 48 h. Finally, evaluation of skin permeation using Franz cell setup with a newborn pig skin model showed that the permeation of ROSE from the hydrogel patch increased with time and reached the maximum of 262 µg/cm2, which was well below the cytotoxicity threshold, at 24 h. These results demonstrated that our ROSE-coated hydrogel patches could potentially be used in transdermal delivery.

Effect of Red Onion Skin Extract (Allium cepa L.) Supplementation in the Diet on the Performance of Laying Quails

Effect of Red Onion Skin Extract (Allium cepa L.) Supplementation in the Diet on the Performance of Laying Quails

Laboratory evaluation of red onion skin extract and its derivative as biomass-based enhanced oil recovery agents

The use of natural alternatives as oilfield chemicals is gradually gaining attention among researchers due to their eco-friendly nature. The aim of this study was to determine the efficiency of red onion skin extract (ROSE) at recovering residual oil using the mechanism of surfactant flooding in sandstone reservoirs at reservoir conditions and compare its effectiveness in its pristine and modified state. ROSE was obtained by solvent extraction of the waste biomass (red onion skin) using acetone. The extract was chemically modified using glutaraldehyde. Phase behavior analysis in the presence of divalent ions at high temperatures (80 ˚C) and sandstone core flooding were performed to determine the fluid compatibility and displacement efficiency. Results show high compatibility and solubility of pristine (unmodified) and modified ROSE in soft and hard brine. Core flooding analysis showed a higher recovery of 32.1% and 36.5% original oil in place (OOIP) for 0.3 wt.% modified ROSE as compared to a recovery factor of 31.8% and 35.0 % OOIP for 0.5% unmodified ROSE in soft and hard brine respectively. It further reveals an increase in additional recovery at surfactant concentration in hard brine above critical micelle concentration (CMC). Results of statistical significance test showed that modified ROSE exhibited superior performance and a higher recovery relative to unmodified ROSE especially in hard brine. This is a novel work as red onion skin extract was derivatized with glutaraldehyde and successfully recovered additional residual oil under hard brine and reservoir temperature making them potential surface-active agents for chemical enhanced oil recovery.