[논문]Antioxidant Contents and Antioxidant Activities of White and Colored Potatoes (Solanum tuberosum L.)

Lee, Sang Hoon; Oh, Seung Hee; Hwang, In Guk; Kim, Hyun Young; Woo, Koan Sik; Woo, Shun Hee; Kim, Hong Sig; Lee, Junsoo; Jeong, Heon Sang

doi:10.3746/pnf.2016.21.2.110

Antioxidant Contents and Antioxidant Activities of White and Colored Potatoes (Solanum tuberosum L.) 원문보기

Preventive nutrition and food science, v.21 no.2, 2016년, pp.110 - 116

Lee, Sang Hoon (Department of Food Science and Biotechnology, Chungbuk National University) , Oh, Seung Hee (Department of Food Science and Biotechnology, Chungbuk National University) , Hwang, In Guk (Department of Agrofood Resources, National Academy of Agricultural Science) , Kim, Hyun Young (Department of Frunctional Crop Science, National Institute of Crop Science) , Woo, Koan Sik (Department of Frunctional Crop Science, National Institute of Crop Science) , Woo, Shun Hee (Department of Crop Science, Chungbuk National University) , Kim, Hong Sig (Department of Crop Science, Chungbuk National University) , Lee, Junsoo (Department of Food Science and Biotechnology, Chungbuk National University) , Jeong, Heon Sang (Department of Food Science and Biotechnology, Chungbuk National University)

Abstract ▼ AI-Helper

This study was performed to evaluate and compare the antioxidant substance content and antioxidant activities of white (Superior) and colored (Hongyoung, Jayoung, Jasim, Seohong, and Jaseo) potatoes. The potatoes were extracted with 80% ethanol and were evaluated for the total polyphenol, flavonoid, and anthocyanin contents and for 1,1-diphenyl-2-picrylhydrazyl (DPPH)/2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging activity, reducing power, and ferrous metal ion chelating effect. The total polyphenol, flavonoid, and anthocyanin contents of Hongyoung and Jayoung were higher than white and other colored potatoes. All colored potato extracts, except for Jaseo and Seohong, showed higher ABTS radical scavenging activities than the general white potato extract. Hongyoung and Jayoung had the highest ABTS and DPPH radical scavenging activities. Optical density values for the reducing power of Jayoung and Jaseo at concentration of 2 mg/mL were 0.148 and 0.090, respectively. All colored potato extracts had lower ferrous metal ion chelating effect than the white potato. A significant (P<0.05) positive correlation was observed between total polyphenol content and total flavonoid content (r=0.919), anthocyanin content (r=0.992), and ABTS radical scavenging activity (r=0.897). Based on these results, this research may be useful in developing the Hongyoung and Jayoung cultivars with high antioxidant activities.

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문제 정의

However, other studies are limited in this Korean purple potato. The objective of this study was to compare the antioxidant activities and anthocyanin content of different varieties of white (Superior) and colored potato cultivars of Hongyoung, Jayoung, Jasim, Seohong, and Jaseo in Korea.

데이터처리

Means on bars with different letters (a-d) are significantly different (P<0.05) by Duncan‘s multiple range test.
Means on bars with different letters (a-e) are significantly different (P<0.05) by Duncan‘s multiple range test.
Means on bars with different letters (a-f) are significantly different (P<0.05) by Duncan‘s multiple range test.
The significance of differences among the treatment means was determined using one-way analysis of variance (ANOVA), calculated by SPSS version 12 (SPSS Inc., Chicago, IL, USA), with a significance level of P< 0.05 by Duncan’s multiple range test.
Values with different letters (a-f) with a column are significantly different (P<0.05) by Duncan's multiple range test.

이론/모형

DPPH radical scavenging activity of potato extracts was determined using the method outlined by Hwang et al. (12). Sample solutions with concentrations of 10, 20, 30, 40, and 50 mg/mL were prepared from the stock solution.
Reducing power of the extracts was determined using the method described by Mau at al. (13). Sample solutions with concentration of 20, 40, 60, 80, and 100 mg/mL were prepared from the stock solution.

성능/효과

The ABTS radical scavenging activities of the purple-colored potato varieties are shown in Fig. 4. Hongyoung had the highest ABTS radical scavenging activity of 121.39 mg AAE/100 g dried samples, whereas Superior and Seohong had lower ABTS radical scavenging activities of 80.64 and 71.88 mg AAE/100 g, respectively. Lachman et al.
DPPH radical scavenging activities (IC₅₀) of the purple-colored potato varieties are shown in Fig. 5. Jayoung had an IC₅₀ value of 2.76 mg/mL, whereas values for Hongyoung, Jaseo, and Seohong were 5.44, 8.49, and 13.64 mg/mL, respectively. All samples except for Jayoung had lower radical scavenging activity than the 4.
(3) indicated that the high phenolic content of purple-fleshed potato differs in cultures, cropping systems, and fertilizer controlled environments. These results showed that the purple-colored potatoes (Hongyoung, Jayoung, and Jasim) used in this experiment were similar or higher in polyphenol content compared to white (Superior) and yellow-colored (Seohong and Jaseo) potato varieties.

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