Antioxidant Activity and DNA Damage Protective Effect of a Robinia pseudoacacia L. Flower Extract

Kim, Su-Jung; Seo, Go-Un; Seo, Bo-Young; Park, Eunju; Lee, Seung‐Cheol

doi:10.9724/kfcs.2011.27.4.099

Cited by 4 publications

(4 citation statements)

References 19 publications

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“…The polyphenol content varies greatly from plant type as well as from parts and organs within the same plant [19,20]. In the previous study, the polyphenol contents of BLFE were reported to be 9.03 mg/g in the hot water extraction, and 8.78 mg/g in the ethanol extraction [1]. The polyphenol content of the 40% ethanolic extract in this study was found to be higher, which is because extraction with an aqueous ethanol solution facilitates the penetration of the solvent into cell membrane of plants rather than using water or ethanol alone [21].…”

Section: Resultsmentioning

confidence: 99%

“…Black locust (Robinia pseudoacacia L.) belonging to Fabaceae family is originally native to North America and widely distributed throughout Korea [1]. The black locust flower (BLF), which has been used as a food additive and traditional medicine, is considered very important as the main raw material for honey harvesting [1,2]. The BLF has been known to have diuretic, sedative and anti-inflammatory effects [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Flavone glycosides such as acacetin contained in BLF are reported to have antimicrobial and antioxidant activities [6]. Accordingly, the black locust flower extract (BLFE) showed antioxidant, antimicrobial, and DNA damage protective effects [1,7].…”

Section: Introductionmentioning

confidence: 99%

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Biological activities of ethanolic extract from Robinia pseudoacacia L. flower

Han

Park

et al. 2022

JABC

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Biological activities such as antioxidant, anticoagulant, and α-glucosidase inhibitory effects of 40% (v/v) ethanolic extract from black locust (Robinia pseudoacacia L.) flower were investigated. The polyphenol content of the black locust flower extract was 39.8±0.5 mg gallic acid equivalents/g. The flower extract represented antioxidant effects such as free radical, cationic radical, and nitrite scavenging abilities as well as reducing power. Also the flower extract inhibited α-glucosidase activity and common pathway in plasma coagulation system.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biological activities of ethanolic extract from Robinia pseudoacacia L. flower

Han

Park

et al. 2022

JABC

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“…Black locust flowers, as forest by-products, have potential market value. Researchers have analyzed the functions and components of extracts from various flowers; for instance, Kim et al (2011) reported that flower extracts have antioxidant activity and alleviate DNA damage, and Ma et al (2021) analyzed red and white flowers and found 11 flavonoid glycosides. However, genes related to black locust flower coloration have not been reported.…”

Section: Introductionmentioning

confidence: 99%

Metabolome and transcriptome sequencing analysis reveals anthocyanins in the red flowers of black locust (Robinia pseudoacacia L.)

Zhang

JIA

et al. 2022

Food Sci. Technol

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Black locust (Robinia pseudoacacia L.) flowers display a white or red color. The white flowers are a popular food in Chinese markets, while the red flowers have high ornamental value. In this study, combined analysis of the transcriptome and flavonoid metabolome was performed to investigate the key genes and metabolites involved in flower pigmentation in the red and white flowers of black locust. A total of 308 flavonoid metabolites were identified, and five anthocyanins were significantly higher in the red flowers compared to the white flowers. Transcriptome sequencing yielded about 66 Gb data, from which 53,992 unigenes were assembled. Compared with the white flowers, 1,394 unigenes were up-regulated and 1,201 unigenes were down-regulated in the red flowers. Three anthocyanin structural genes, F3'H, ANS, and 3GT, were significantly up-regulated in the red flowers, representing the key genes for anthocyanin accumulation in the red flowers. Nine MYB and four bHLH genes were up-regulated in the red flowers, representing the candidate genes regulating the anthocyanin pathway. These results provide a theoretical basis for the development of black locust flowers as a food and also provide a foundation for the study of anthocyanin regulation in black locust.

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Anti-inflammatory and antioxidant activities of Rosa multiflora

Park¹,

Hyun²,

Kang³

et al. 2022

Korean J. Food Preserv.

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Studies on antioxidant activity, antibacterial activity and antiseptic effect have been reported on Rosa muliflora flower, but research on anti-inflammatory activity is insufficient. The purpose of this study was to confirm the possibility of using an extract of Rosa multiflora flower as an antioxidant and anti-inflammatory functional material. R. multiflora flower was extracted with hot water, 70%v/v ethanol, and 70%v/v acetone solvents. Polyphenol and flavonoid content, DPPH and ABTS radical scavenging ability, SOD-like activity, cytotoxicity (MTT assay with RAW 264.7 macrophages), and NO inhibitory activity were analyzed. Anti-inflammatory was analyzed by, Western blotting. The polyphenol content of R. multiflora flower water extract (RMW) was 236.58 mg/g; that of 70% ethanol extract (RME) was 198.15 mg/g; that of 70% acetone extract (RMA) was 216.97 mg/g. The flavonoid content was 16.91 mg/g for RMW, 7.80 mg/g for RME, and 20.24 mg/g for RMA. The DPPH radical-scavenging ability was highest in RME (59.88%); the ABTS radical-scavenging ability was highest in RMA (99.1%); and the SOD-like activity was highest in RMW (62.04%). Cell viability was determined by setting the concentration range for a survival rate of 90% or more. RME showed the highest inhibitory activity (70.86%). Further, iNOS protein activity was inhibited by 53.94% by RME, and that of COX-2 protein by 61.48% by RMA. Collectively, the R. multiflora flower extract has excellent potential for use as a functional anti-inflammatory and antioxidant food material.

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Antioxidant Activity and DNA Damage Protective Effect of a Robinia pseudoacacia L. Flower Extract

Cited by 4 publications

References 19 publications

Biological activities of ethanolic extract from Robinia pseudoacacia L. flower

Biological activities of ethanolic extract from Robinia pseudoacacia L. flower

Metabolome and transcriptome sequencing analysis reveals anthocyanins in the red flowers of black locust (Robinia pseudoacacia L.)

Anti-inflammatory and antioxidant activities of Rosa multiflora

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