Comparison of the antioxidant properties and flavonols in various parts of Korean red onions by multivariate data analysis

Park, Mi Jin; Ryu, Da Hye; Cho, Jwa Yeong; Ha, In Jong; Moon, Jin Seong; Kang, Younhee

doi:10.1007/s13580-018-0091-2

Cited by 10 publications

(9 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For this purpose, the results obtained from this study against those reported by other authors (see the bibliographic review in Table 1 ), who employed traditional extraction techniques, were compared. Even the most recent publications [ 25 , 26 , 27 ] are related to traditional techniques such as homogenization, centrifugation, or sonication. Not only do these techniques require longer extraction times and a greater use of solvents, but also they give rise to lower yields than those actually achieved in this work.…”

Section: Resultsmentioning

confidence: 99%

Development of Optimized Ultrasound-Assisted Extraction Methods for the Recovery of Total Phenolic Compounds and Anthocyanins from Onion Bulbs

et al. 2021

View full text Add to dashboard Cite

Allium cepa L. is one of the most abundant vegetable crops worldwide. In addition to its versatile culinary uses, onion also exhibits quite interesting medicinal uses. Bulbs have a high content of bioactive compounds that are beneficial for human health. This study intends to develop and optimize two appropriate ultrasound-assisted methods for the extraction of the phenolic compounds and anthocyanins present in red onion. A response surface methodology was employed and, specifically, a Box–Behnken design, for the optimization of the methods. The optimal conditions for the extraction of the phenolic compounds were the follows: 53% MeOH as solvent, pH 2.6, 60 °C temperature, 30.1% amplitude, 0.43 s cycle, and 0.2:11 g sample/mL solvent ratio. On the other hand, the optimal conditions for the anthocyanins were as follows: 57% MeOH as solvent, pH 2, 60 °C temperature, 90% amplitude, 0.64 s cycle, and 0.2:15 g sample/mL solvent ratio. Both methods presented high repeatability and intermediate precision, as well as short extraction times with good recovery yields. These results illustrate that the use of ultrasound-assisted extraction, when properly optimized, is suitable for the extraction and quantification of the compounds of interest to determine and improve the quality of the raw material and its subproducts for consumers.

show abstract

Section: Resultsmentioning

confidence: 99%

Development of Optimized Ultrasound-Assisted Extraction Methods for the Recovery of Total Phenolic Compounds and Anthocyanins from Onion Bulbs

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This run time range was considered as acceptable for rapid separations, especially when compared to the analysis run times of the UHPLC methods for onion flavonols published in the literature. Although some methods require a time as relatively short as 15 min [ 24 , 25 ], most of them require at least 30 min to complete the correct separation of all the peaks [ 6 , 11 ], and some of them may even need as much as 60 min [ 17 , 18 ]. However, the impact for this variable was set to the highest relevance (5 impact), since one of the main objectives of this work was to develop a time-and-cost-saving multiple analysis UHPLC methodology.…”

Section: Resultsmentioning

confidence: 99%

“…complete the correct separation of all the peaks [6,11], and some of them may even need as much as 60 min [17,18]. However, the impact for this variable was set to the highest relevance (5 impact), since one of the main objectives of this work was to develop a timeand-cost-saving multiple analysis UHPLC methodology.…”

Section: Optimization Of the Uhplc Methodsmentioning

confidence: 99%

“…The response variables (dependent variables) were optimized according to the peak resolutions (Y Rs ) and the analyses run time (Y RT ). The retention time of the last peak in the chromatogram was regarded as the analysis run time, while the peak resolutions were calculated according to Equation (6).…”

Section: Box-behnken Design (Bbd)mentioning

confidence: 99%

“…However, this increasing production tendency is also supported by the current awareness by consumers of its high content in non-nutrient bioactive compounds with preventive properties against some degenerative pathologies [ 3 , 4 ]. Specifically, onion presents antimicrobial, antioxidant, anticarcinogenic, antimutagenic, antiasthmatic, immunomodulatory, and cardiovascular properties [ 5 , 6 ]. The flavonols present in onions are some of the main contributors to these health-promoting properties.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of a Rapid UHPLC-PDA Method for the Simultaneous Quantification of Flavonol Contents in Onions (Allium cepa L.)

et al. 2021

View full text Add to dashboard Cite

Onion, one of the most consumed vegetables in the world, is also known to contain high levels of antioxidant compounds, with protective effects against different degenerative pathologies. Specifically, onion is rich in flavonols, mainly quercetin derivatives, which are compounds with high antioxidant and free radical scavenging power. For this reason, it is of the utmost importance to count on optimal analytical methods that allow for the determination and quantification of these compounds of interest. A rapid ultra-high performance liquid chromatography (UHPLC)-photo-diode array (PDA) method for the separation of the major flavonols in onions was developed using a Box–Behnken design in conjunction with multiresponse optimization on the basis of the desirability function. The conditions that provided a successful separation were 9.9% and 53.2% of phase B at the beginning and at the end of the gradient, respectively; 55 °C column working temperature; and 0.6 mL min−1 flow rate. The complete separation was achieved in less than 2.7 min with excellent chromatographic characteristics. The method was validated, and its high precision, low detection and quantification limits, good linearity, and robustness were confirmed. The correct applicability of the method improves the analysis of the raw material, increasing the quality of onions and its subproducts in terms of bioactive compounds and functional characteristics for consumers.

show abstract

Low temperature and hypoxic conditions induce flavonoids biosynthesis and enhances antioxidant potential of crabapple (Malus profusion) fruits

et al. 2021

View full text Add to dashboard Cite

Comparison of the antioxidant properties and flavonols in various parts of Korean red onions by multivariate data analysis

Cited by 10 publications

References 32 publications

Development of Optimized Ultrasound-Assisted Extraction Methods for the Recovery of Total Phenolic Compounds and Anthocyanins from Onion Bulbs

Development of Optimized Ultrasound-Assisted Extraction Methods for the Recovery of Total Phenolic Compounds and Anthocyanins from Onion Bulbs

Development of a Rapid UHPLC-PDA Method for the Simultaneous Quantification of Flavonol Contents in Onions (Allium cepa L.)

Low temperature and hypoxic conditions induce flavonoids biosynthesis and enhances antioxidant potential of crabapple (Malus profusion) fruits

Contact Info

Product

Resources

About