Effects of Various Light Sources on the Carotenoid and Glucosinolate Contents in Chinese Cabbage (Brassica rapa L. ssp. pekinensis)

Sung, Ho-Young; Jo, Lee-Kyeong; Chun, Jin‐Hyuk; Woo, Hyunnyung; Kim, Sun-Ju

doi:10.5338/kjea.2018.37.2.13

Cited by 1 publication

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“…Additionally, lutein epoxide is a minor component of the total lutein pool associated with thermal energy dissipation and nonphotochemical quenching during warm months [20]. Foremost, the contents of carotenoids changes in pepper leaves under different temperatures and light intensities [21][22][23]. Due to the presence of carotenoids in pepper leaves, these properties are closely correlated with antioxidant capacity and tolerance mechanisms, which affect the metabolic system of hormones and pigments and further influence the conduction of pepper fruit.…”

Section: Introductionmentioning

confidence: 99%

Optimum Parameters for Extracting Three Kinds of Carotenoids from Pepper Leaves by Response Surface Methodology

Ding

et al. 2021

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To determine the optimum parameters for extracting three carotenoids including zeaxanthin, lutein epoxide, and violaxanthin from pepper leaves by response surface methodology (RSM), a solvent of acetone and ethyl acetate (1:2) was used to extract carotenoids with four independent factors: ultrasound time (20–60 min); ratio of sample to solvent (1:12–1:4); saponification time (10–50 min); and concentration of saponification solution (KOH–methanol) (10–30%). A second-order polynomial model produced a satisfactory fitting of the experimental data with regard to zeaxanthin (R2 = 75.95%, p < 0.0197), lutein epoxide (R2 = 90.24%, p < 0.0001), and violaxanthin (R2 = 73.84%, p < 0.0809) content. The optimum joint extraction conditions of zeaxanthin, lutein epoxide, and violaxanthin were 40 min, 1:8, 32 min, and 20%, respectively. The optimal predicted contents for zeaxanthin (0.823022 µg/g DW), lutein epoxide (4.03684 µg/g dry; DW—dry weight), and violaxanthin (16.1972 µg/g DW) in extraction had little difference with the actual experimental values obtained under the optimum extraction conditions for each response: zeaxanthin (0.8118 µg/g DW), lutein epoxide (3.9497 µg/g DW), and violaxanthin (16.1590 µg/g DW), which provides a theoretical basis and method for cultivating new varieties at low temperatures and weak light resistance.

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Section: Introductionmentioning

confidence: 99%

Optimum Parameters for Extracting Three Kinds of Carotenoids from Pepper Leaves by Response Surface Methodology

Ding

et al. 2021

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Effects of Various Light Sources on the Carotenoid and Glucosinolate Contents in Chinese Cabbage (Brassica rapa L. ssp. pekinensis)

Cited by 1 publication

References 19 publications

Optimum Parameters for Extracting Three Kinds of Carotenoids from Pepper Leaves by Response Surface Methodology

Optimum Parameters for Extracting Three Kinds of Carotenoids from Pepper Leaves by Response Surface Methodology

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