Pine bark extract is made from the bark of Pinus densiflora which naturally contains occurring phytochemicals such as phenolic compounds. PineXol ® from products of pine bark extract is sold under the brand name. The aim of this study was to evaluate the total phenol, total flavonoids contents and antioxidant activity of the PineXol ® as well as to assess the lipid accumulation during adipogenesis of 3T3-L1 cells. Our results demonstrate that the total phenolic and flavonoids contents of the PineXol ® were 717.40±6.86 GAE mg/mL and 54.44±0.01 RE mg/mL, respectively. The antioxidative activities of the PineXol ® were significantly increased in a dose dependent manner on DPPH (1,1-Diphenyl-2-picryl hydrazyl) radical scavenging, ABTS (2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt) radical scavenging, FRAP (ferric reducing antioxidant power) activity, reducing power, nitrite radical scavenging activity and ORAC (Oxygen radical absorbance capacity) value. In addition, the PineXol ® inhibited the adipocyte differentiation of 3T3-L1 preadipocytes. Exposure to 200 µg/mL, PineXol ® significantly reduced lipid accumulation (~80%) in 3T3-L1 cells compared to control cells.
Keywords: PineXol
Cirsium setidens Nakai, a wild perennial, is widely consumed as a food and traditional medicine in Korea. In addition, diverse functionalities of C. setidens Nakai, including anti-inflammatory and antioxidant effects, have been reported. However, whether or not C. setidens Nakai and its major compound, pectolinarin have high nutritional value and functional properties remains unknown. This paper investigated the proximate compositions, mineral contents, hepatoprotective activities, hepatic fat accumulation inhibitory activities, and anti-inflammatory and anti-oxidant activities of C. setidens Nakai and its component parts, including of pectolinarin. The result showed that C. setidens Nakai and its major compounds have potential as a functional food material with natural antioxidant and anti-inflammatory activities.Key words: Cirsium setidens Nakai, nutritional components, antioxidant activity, pectolinarin, functional material
The present study was performed to quantitatively analyze eleutherosides (B and E) and β-glucan in different plant parts of three cultivars (Chungnam, Gangwon, and Jeju) of Acanthopanax senticosus and Acanthopanax koreanum using HPLC and a commercial enzyme kit. Our results showed high linearity in the calibration curves as the coefficients of correlation (R 2 ) were 0.998 (eleutheroside B) and 0.999 (eleutheroside E), respectively. Eleutheroside B and E were found in stem extracts of A. koreanum cultivated in Jeju (1,122 μg/g, eleutheroside B) and A. senticosus cultivated in Chungnam (2,536 μg/g, eleutheroside E), respectively. However, eleutheroside B was not detected in any part of A. senticosus cultivated in Chungnam. For β-glucan contents, stems of A. senticosus and A. koreanum showed higher than other parts. Furthermore, the β-glucan content in stems of A. koreanum cultivated in Gangwon was significantly higher than in those of other cultivars. These results show that the contents of eleutheroside B, E, and β-glucan were higher in stem extracts of A. senticosus and A. koreanum than other parts. Moreover, our results suggest that the contents of eleutheroside B, E, and β-glucan in A. senticosus and A. koreanum are influenced by cultivation area and the selected part.
Key words: Acanthopanax senticosus, Acanthopanax koreanum, eleutheroside B, eleutheroside E, β-glucan
This study investigated the nutritional components and physicochemical characteristics of Jerusalem artichoke. The moisture, crude protein, crude fat, crude ash and carbohydrate content of the Jerusalem artichoke were 5.06±0.08, 8.30±0.26, 0.70±0.16, 5.04±0.03, and 80.90%, respectively. The total sugar content of Jerusalem artichoke was 50.48±1.11 mg/g, and the Hunter color space coordinates were L=94.16±0.03, a=0.32±0.01 and b=0.30±0.01. The water binding capacity and water activity of the Jerusalem artichoke were 4.06±0.16 g/g and 0.245±0.005, respectively. The total aminoacid content of the Jerusalem artichoke was 1.337×10 4 mg/kg, and essential amino acid was 2,737 mg/kg. The total free sugar of the Jerusalem artichoke was 4.12%. Linoleic acid (0.21%) was found to be a common fatty acid in the Jerusalem artichoke. Among the minerals, potassium (2,489 mg%) was found to be the most abundant in the Jerusalem artichoke. The total phenol and flavonoid contents were 3.06±0.07 mg GAE/g and 1.89±0.03 mg QE/g, respectively. The vitamin C content of the Jerusalem artichoke was 3.43±0.07 mg%.
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