Vegetation and Habitat Environment of Sageretia thea in Jeju Island

Song, Sang Churl; Song, Chang Khil; Kim, Ju Sung

doi:10.7783/kjmcs.2014.22.4.301

Cited by 5 publications

(1 citation statement)

References 2 publications

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“…The leaves are used in the preparation of green tea. Traditionally S. thea is used in the preparation of herbal medicine for the treatment of hepatitis and fever in China and Korea [ 3 , 4 , 5 ]. Various bioactive compounds such as friedelin, synergic acid, betasitosterol, daucosterol, gluco-synrigic acid, and taraxerol were isolated from the aerial parts of S. thea [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Production of Secondary Metabolites from Cell Cultures of Sageretia thea (Osbeck) M.C. Johnst. Using Balloon-Type Bubble Bioreactors

Kim

Han

Murthy

et al. 2023

Plants

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Sageretia thea is used in the preparation of herbal medicine in China and Korea; this plant is rich in various bioactive compounds, including phenolics and flavonoids. The objective of the current study was to enhance the production of phenolic compounds in plant cell suspension cultures of Sageretia thea. Optimum callus was induced from cotyledon explants on MS medium containing 2,4-dichlorophenoxyacetic acid (2,4-D; 0.5 mg L−1), naphthalene acetic acid (NAA, 0.5 mg L−1), kinetin (KN; 0.1 mg L−1) and sucrose (30 g L−1). Browning of callus was successfully avoided by using 200 mg L−1 ascorbic acid in the callus cultures. The elicitor effect of methyl jasmonate (MeJA), salicylic acid (SA), and sodium nitroprusside (SNP) was studied in cell suspension cultures, and the addition of 200 µM MeJA was found suitable for elicitation of phenolic accumulation in the cultured cells. Phenolic and flavonoid content and antioxidant activity were determined using 2,2 Diphenyl 1 picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethybenzothiazoline-6-sulphonic acid (ABTS), ferric reducing antioxidant power (FRAP) assays and results showed that cell cultures possessed highest phenolic and flavonoid content as well as highest DPPH, ABTS, and FRAP activities. Cell suspension cultures were established using 5 L capacity balloon-type bubble bioreactors using 2 L of MS medium 30 g L−1 sucrose and 0.5 mg L−1 2,4-D, 0.5 mg L−1 NAA, and 0.1 mg L−1 KN. The optimum yield of 230.81 g of fresh biomass and 16.48 g of dry biomass was evident after four weeks of cultures. High-pressure liquid chromatography (HPLC) analysis showed the cell biomass produced in bioreactors possessed higher concentrations of catechin hydrate, chlorogenic acid, naringenin, and other phenolic compounds.

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Section: Introductionmentioning

confidence: 99%

Production of Secondary Metabolites from Cell Cultures of Sageretia thea (Osbeck) M.C. Johnst. Using Balloon-Type Bubble Bioreactors

Kim

Han

Murthy

et al. 2023

Plants

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Nutritional and nutraceutical characteristics of Sageretia theezans fruit

Hyun

Song

et al. 2015

Journal of Food and Drug Analysis

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The fruit of Sageretia theezans is one of many underutilized edible fruits that grow along the southern seashores of East Asia. In this study, to evaluate the nutritional and nutraceutical values of S. theezans fruit, the composition of minerals, organic acids, and proximate and fatty acids, the total phenolic, total flavonoid, and total anthocyanin content, and the antioxidant and antidiabetic activities of S. theezans fruit were analyzed. The results indicate that S. theezans fruit could be classified as a potential potassium-, malic acid-, and linoleic/oleic acid-rich fruit. In addition, The ethyl acetate (EtOAc) fraction of the 70% ethanol (EtOH) crude extract exhibited strong antioxidant activities including free radical scavenging and reducing power activities compared with the same concentration of butylated hydroxytoluene. Furthermore, the EtOAc fraction showed significant inhibition of α-glucosidase activity. The analysis of the total phenolic and flavonoid content suggested that the remarkable antioxidant and antidiabetic activities of the EtOAc fraction are due to the presence of high levels of polyphenolic compounds.

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Comparison of proximate compositions, antioxidant, and antiproliferative activities between blueberry andSageretia thea(Osbeck) M.C.Johnst fruit produced in Jeju Island

고소예

류지연

et al. 2017

JABC

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This study was aimed to evaluate and compare the proximate composition, antioxidant and antiproliferative activities of Sageretia thea (Osbeck) M.C.Johnst (S. thea) fruit and blueberry. The calorific value, crude protein, crude fat, crude ash, and carbohydrate were higher in S. thea fruit than in blueberry. S. thea fruit and blueberry have different profile of free sugars, in which amounts of fructose, glucose, and maltose were much higher in S. thea fruit than in blueberry. The methanol extracts of S. thea fruit contain higher amounts of total polyphenol and anthocyanin compared to those of blueberry extracts. In additions, 2,2-diphenyl-1-picrylhydrazyl (DPPH), alkyl, and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activities are greater in S. thea fruit extracts. Ethyl acetate fractions and n-butanol fractions of S. thea fruit and blueberry show the most potent scavenging activity in DPPH-, alkyl-, and ABTS-radical scavenging assay. The ethyl acetate fractions of S. thea fruit and blueberry are the richest fraction in polyphenol contents while the n-butanol fractions of those are the highest fraction in anthocyanin contents. Furthermore, both S. thea fruit and blueberry extracts protect human dermal fibroblast cells against a H 2 O 2 -induced oxidative stress. The antiproliferative activities of n-hexane and chloroform fraction from S. thea fruit and blueberry were observed in AGS human gastric cancer and MDA-MB-231 human breast cancer cells. Therefore, our results suggest for the first time that the antioxidant and antiproliferative activities of S. thea fruit is comparable to that of blueberry and the nutritional value of the former is even superior to that of the latter.

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Vegetation and Habitat Environment of Sageretia thea in Jeju Island

Cited by 5 publications

References 2 publications

Production of Secondary Metabolites from Cell Cultures of Sageretia thea (Osbeck) M.C. Johnst. Using Balloon-Type Bubble Bioreactors

Production of Secondary Metabolites from Cell Cultures of Sageretia thea (Osbeck) M.C. Johnst. Using Balloon-Type Bubble Bioreactors

Nutritional and nutraceutical characteristics of Sageretia theezans fruit

Comparison of proximate compositions, antioxidant, and antiproliferative activities between blueberry andSageretia thea(Osbeck) M.C.Johnst fruit produced in Jeju Island

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