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. 2020 Jun 26;9(6):840.
doi: 10.3390/foods9060840.

Comparative Analysis of the Nutritional Components and Antioxidant Activities of Different Brassica juncea Cultivars

Hee-Yeon Kwon  1 , Sun-Il Choi  1 , Hye-In Park  1 , Seung-Hyun Choi  1 , Wan-Sup Sim  1 , Jin-Hui Yeo  2 , Ju-Hyun Cho  3 , Ok-Hwan Lee  1
Affiliations

Comparative Analysis of the Nutritional Components and Antioxidant Activities of Different Brassica juncea Cultivars

Hee-Yeon Kwon et al. Foods. .

Abstract

The purpose of this study was to compare the nutritional components and antioxidant activities of two different cultivars of Brassica juncea (Dolsan, Yeosu, Korea (BJD) and (Jeongseon, Gangwon, Korea (BJJ)). We investigated the proximate composition (moisture, crude ash, crude protein and crude lipid), antioxidant activities (2,2-Diphenyl-2-picrylhydrazil (DPPH) scavenging activity and ferric reducing antioxidant power (FRAP)), total phenol content, total flavonoid content and sinigrin content by high-performance liquid chromatography analysis. Our results show that the proximate compositions of BJD and BJJ were not significantly different. However, both the DPPH radical scavenging and FRAP activities of the BJJ extracts were higher than those of the BJD extracts. The total phenol contents of the BJD and BJJ extracts were 6.56 and 9.80 mg gallic acid equivalent/g, respectively. The total flavonoids content of the BJD and BJJ extracts were 20.92 and 34.81 mg rutin equivalent/g, respectively, whereas the sinigrin contents, one of the major compounds in BJD and BJJ extracts, were 16.16 mg/g and 11.73 mg/g, respectively. In this study, we confirmed that, by comparing BJJ and BJD, the sinigrin content of BJD was higher than that of BJJ, but the antioxidant activity and phenol content of BJD were superior to that of BJJ.

Keywords: Brassica juncea; antioxidant; comparative analysis; different cultivars; nutritional components.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
DPPH radical scavenging activity of BJJ and BJJ. Values are mean ± SD (n = 3). Means (bar value) not sharing a common letter (a–g) are significantly different (p < 0.05).
Figure 2
Figure 2
FRAP activity of BJD and BJJ. Values are mean ± SD (n = 3). Means (bar value) not sharing a common letter (a–g) are significantly different (p < 0.05).
Figure 3
Figure 3
(a) PDA spectrums and (b) HPLC chromatogram of sinigrin, BJD and BJJ.
See this image and copyright information in PMC

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