Antimicrobial assessment of polyphenolic extracts from onion (Allium cepa L.) skin of fifteen cultivars by sonication-assisted extraction method

Sagar, Narashans Alok; Pareek, Sunil

doi:10.1016/j.heliyon.2020.e05478

Cited by 34 publications

(16 citation statements)

References 29 publications

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“…Control solutions containing only the solvent ethanol under identical experimental conditions showed no inhibition zone. The present study showed lower and better MICs than the results of Sagar et al [51]. In their research, extracts from Allium cepa skin of 15 Indian cultivars of different skin colors (dark red.…”

Section: Antibacterial Assaycontrasting

confidence: 59%

Extracting, evaluating biological activities of phenolic compounds from yellow onion peels (Allium cepa L.) and their applicability for fish preservation

Phan

Nguyen

Tran

2021

IOP Conf. Ser.: Earth Environ. Sci.

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The research aimed to evaluate total phenolic content extracted from onion (Allium cepa L.) peels and some of the extract biological activities. The potential of the extract for preserving fish was also investigated. Onion peel extracted with EtOH 60% at 60°C (60 minutes, solid/liquid ratio 1g/20ml) yielded highest polyphenol content 168.49 ± 0.02 GAE/g DW and flavonoid content (216.43 ± 0.06 mg QE/g DW). The extract showed potent antioxidant property in DPPH radical scavenging assay with IC50 value of 12.48 ± 0.45 μ/mL and good antibacterial activity against Bacillus subtilis, Escherichia coli, Staphylococcus aureus, Salmonella, Pseudomonas aeruginosa with MIC values of 175; 175: 200; 200: 150 (μ/mL) respectively. The extract also displayed alpha-glucosidase inhibition activity with IC50 value of 142.53 μg/mL and negligible tyrosinase inhibition activity. Measurement of the PV, TBARS values of basa catfish fillets coated with the extract solution at different concentrations, it was observed that fish samples treated with 3% extract solution could greatly reduce the lipid oxidation under 4°C and -18°C storage conditions compared with untreated samples. The PV, TBARS values after 4 weeks were comparable to 200ppm BHT treated samples.

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Section: Antibacterial Assaycontrasting

confidence: 59%

Extracting, evaluating biological activities of phenolic compounds from yellow onion peels (Allium cepa L.) and their applicability for fish preservation

Phan

Nguyen

Tran

2021

IOP Conf. Ser.: Earth Environ. Sci.

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“…Apigenin is a flavonoid in onion that shows anticancerous effects that inhibit the expression of ultraviolet-B-influencedCOX-2 (cyclooxygenase-2), which is a well-recognized promoter of chronic inflammatory diseases. Additionally, it causes the restoration of the level of an upstream modulatory factor in JB6 P+ cells [44]. Different types of cancers and their anticancer mechanisms are shown in Table 4 [45][46][47][48][49][50][51][52][53][54][55][56].…”

Section: Anticancer Propertiesmentioning

confidence: 99%

Nutritional Profile, Phytochemical Compounds, Biological Activities, and Utilisation of Onion Peel for Food Applications: A Review

et al. 2022

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The majority of the by products formed during onion processing remain unutilized, yet they are rich in bioactive compounds and phytochemicals. Onions are a very valuable vegetable. Onion chemical compounds are incredibly diverse, and they work through a variety of pharmacological mechanisms to prevent disease. Although the mechanism of the action of the chemicals found in onions has been studied, there is still room for further reformulating of nutrient supplements and pharmaceutical treatments thanks to a growing interest in sustainable resource utilisation and circular economy. This review focuses on the primary bioactive components found in onion peel and skin, particularly total phenolics, quercetin, total flavonoids, and their derivatives, as well as their therapeutic uses such as cardioprotective, anticancer, neuroprotective, antiobesity, antidiabetic, and antibacterial constituents. This review article noted that onion peel is a valuable agricultural byproduct that has a variety of biologically active compounds so it can be used as a health-regulating ingredient, particularly in the biomedical and pharmacological domains.

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“…The onion bulb and skin harbor a diverse array of bioactive compounds, including organosulfur compounds (OSCs), thiosulfinates, polyphenols (such as flavonoids), and fructooligosaccharides (FOS) [3,8]. Among these bioactive constituents, flavonoids have demonstrated remarkable efficacy.…”

Section: Introductionmentioning

confidence: 99%

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

Terán-Chaves,

Montejo-Nuñez,

Cordero-Cordero

et al. 2023

Horticulturae

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Efficient water management is crucial for sustainable agriculture and water resource conservation, particularly in water-scarce regions. This study investigated the effect of different irrigation depths on onion (Allium cepa L.) yield and water use patterns in a semi-arid tropical region of Colombia, using a completely randomized design with five treatments. The treatments ranged from 0–100% of total available water (TAW), T1 (100% of TAW), T2 (80% of TAW), T3 (60% of TAW), T4 (40% of TAW), and T5 (20% of TAW). The experiment was conducted in a greenhouse during one growing season (2022–2023). The normalized water productivity (WP *), irrigation water productivity (IWP), consumptive water productivity, blue water footprint (WFblue), marginal water use efficiency (MWUE), and elasticity of water productivity (EWP), as well as some parameters of quality onion, were determined. The soil in the experimental field was classified as sandy loam; the results show that the WP * of onion is 17.42 g m−2, the water production function shows the maximum production will be achieved at a water application depth of approximately 943 mm, and beyond that, the biomass yield will decrease with additional water application, IWP values for onion ranged from 2.18 to 3.42 kg m−3, the highest Wfblue was in T5 (34.10 m3 t−1), and low Wfblue was T1 (20.95 m3 t−1). In terms of quality, treatment T1 had the most favorable effects on bulb weight, polar diameter, and equatorial diameter, while treatment T5 had the least favorable effects. The study highlights the importance of efficient irrigation on sandy loam soils to maximize yield and water use efficiency. It provides valuable data for evaluating the potential yield benefits of precision irrigation in the study area. Optimizing irrigation depth can significantly improve onion yield and water use efficiency in semi-arid regions.

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Antimicrobial assessment of polyphenolic extracts from onion (Allium cepa L.) skin of fifteen cultivars by sonication-assisted extraction method

Cited by 34 publications

References 29 publications

Extracting, evaluating biological activities of phenolic compounds from yellow onion peels (Allium cepa L.) and their applicability for fish preservation

Extracting, evaluating biological activities of phenolic compounds from yellow onion peels (Allium cepa L.) and their applicability for fish preservation

Nutritional Profile, Phytochemical Compounds, Biological Activities, and Utilisation of Onion Peel for Food Applications: A Review

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

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