Antifungal Activities of Commercial Rice Wine Extracts of Taiwanese &amp;lt;i&amp;gt;Allium fistulosum&amp;lt;/i&amp;gt;

Chang, Tsan-Chang; Jang, Hung-Der; Lin, Wang‐De; Duan, Peng-Fu

doi:10.4236/aim.2016.67046

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…These methods typically involve macerating the leaves in different solvents (e.g., ethanol, ethanol/water, or acetone) at varying times and temperatures to optimize the extraction process. This method takes a lot of time, energy, and solvent during processing 27 – 30 .…”

Section: Introductionmentioning

confidence: 99%

Optimization of microwave-assisted extraction of antioxidant compounds from spring onion leaves using Box–Behnken design

Aquino,

Basilicata,

Crescenzi

et al. 2023

Sci Rep

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Many studies have explored the extraction of bioactive compounds from different onion solid wastes, such as bulb, skin, and peel. However, onion leaves have received limited attention despite their potential as a valuable source of nutraceutical compounds. This study aimed to valorise, for the first time, the agricultural waste in the form of spring onion leaves (CN, Cipollotto Nocerino) to obtain antioxidant-rich polyphenolic extracts. A Box–Behnken design (BBD) was used to assess the impact of microwave-assisted extraction (MAE) variables (temperature, time, extraction volume, and ethanol concentration) on total polyphenol content (TPC) measured by Folin–Ciocalteu method and the antioxidant power determined by FRAP assay. Response surface methodology (RSM) was applied, and regression equations, analysis of variance, and 3D response curves were developed. Our results highlighted that the TPC values range from 0.76 to 1.43 mg GAE g−1 dw, while the FRAP values range from 8.25 to 14.80 mmol Fe(II)E g−1 dw. The optimal extraction conditions predicted by the model were 60 °C, 22 min, ethanol concentration 51% (v/v), and solvent volume 11 mL. These conditions resulted in TPC and FRAP values of 1.35 mg GAE g−1 dw and 14.02 mmol Fe(II)E g−1 dw, respectively. Furthermore, the extract obtained under optimized conditions was characterized by UHPLC-ESI-Orbitrap-MS analysis. LC/MS–MS platform allowed us to tentatively identify various compounds belonging to the class of flavonoids, saponins, fatty acids, and lipids. Finally, the ability of CN optimal extract to inhibit the intracellular reactive oxygen species (ROS) release in a hepatocarcinoma cell line using an H2O2-induced oxidative stress model, was evaluated. The results highlighted the potential of CN extract as a valuable source of polyphenols with significant antioxidant properties, suitable for various applications in the food and pharmaceutical industries.

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Section: Introductionmentioning

confidence: 99%

Optimization of microwave-assisted extraction of antioxidant compounds from spring onion leaves using Box–Behnken design

Aquino,

Basilicata,

Crescenzi

et al. 2023

Sci Rep

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“…There are some studies about the extraction of beneficial compounds from Welsh onions leaves, mainly using the conventional extraction technique which is based on the maceration of the leaves using different solvents (e.g., ethanol, ethanol/water, acetone), times, and temperatures [ 3 , 15 , 16 , 17 ]. This method takes a lot of time, energy, and solvent during processing.…”

Section: Introductionmentioning

confidence: 99%

“…UAE is based on the utilization of ultrasonic energy (sound waves with frequencies more than 20 kHz) to facilitate the extraction of analytes from a solid sample by the solvent [ 19 , 20 ]. The use of UAE offers advantages over the conventional method such as selectivity, low energy consumption, reduction in solvent consumption, and extraction time, and reduction in consumption of hazardous chemicals, among others [ 15 , 21 , 22 , 23 ]. UAE has been used to extract phenolic compounds from different matrices, including Achillea arabica [ 24 ], spruce wood bark [ 25 ], Jatropha dioica , Eucalyptus camaldulensis [ 26 ], black chokeberry [ 27 ], and others [ 28 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Ultrasound-Assisted Extraction of Polyphenols from Welsh Onion (Allium fistulosum) Leaves Using Response Surface Methodology

Medina‐Jaramillo

Gómez-Delgado

López‐Córdoba

2022

Foods

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Welsh onion (Allium fistulosum) leaves contain several bioactive compounds that can be extracted and used to develop new value-added products (e.g., functional foods and dietary supplements). In the current work, optimal ultrasound-assisted extraction (UAE) conditions to obtain extracts with high polyphenols content and DPPH (1,1-diphenyl-2-picrylhydrazil) scavenging activity were identified using response surface methodology. A complete 3k factorial design was used to evaluate the effect of different variables of the UAE (extraction temperature, time, and ethanol concentration) on the polyphenols content and the DPPH scavenging activity of the extracts. The best conditions for UAE to reach both the highest values of total polyphenols content (51.78 mg GAE/100 g) and DPPH scavenging activity (34.07 mg Trolox equivalents/100 g) were an extraction temperature of 60 °C, time of 10 min, and ethanol concentration of 70% v/v. The antioxidant activity of the extracts obtained at the optimal conditions was also evaluated by 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and ferric reducing antioxidant power (FRAP) assays obtaining values of 155.51 ± 2.80 μM Trolox/100 g and 1300.21 ± 65.55 μM Trolox/100 g, respectively. Moreover, these extracts were characterized by UHPLC-ESI+-Orbitrap-MS analysis finding that cyanidin (6.0 mg/kg) was the phenolic compound found in the highest amount followed by quercetin-3-glucoside (4.4 mg/kg).

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Correlation between the microbiome and pack burst spoilage of Allium sativum supplemented fermented hot pepper paste

Ramalingam

Bahuguna

Joe

et al. 2023

International Journal of Food Microbiology

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Antifungal Activities of Commercial Rice Wine Extracts of Taiwanese <i>Allium fistulosum</i>

Abstract: Antifungal activities of the commercial rice wine extracts of Allium fistulosum were analyzed. Antifungal activities were tested against 7 pathogenic fungi by using agar disc diffusion and tube dilution tests

Cited by 4 publications

References 16 publications

Optimization of microwave-assisted extraction of antioxidant compounds from spring onion leaves using Box–Behnken design

Optimization of microwave-assisted extraction of antioxidant compounds from spring onion leaves using Box–Behnken design

Improvement of the Ultrasound-Assisted Extraction of Polyphenols from Welsh Onion (Allium fistulosum) Leaves Using Response Surface Methodology

Correlation between the microbiome and pack burst spoilage of Allium sativum supplemented fermented hot pepper paste

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