Effect of freeze, hot-air, and vacuum drying on antioxidant properties and quality characteristics of samnamul (Aruncus dioicus var. kamtschaticus)

Kim, Ah-Na; Lee, Kyo-Yeon; Ha, Myeong-Hwa; Heo, Ho Jin; Choi, Sung Gil

doi:10.11002/kjfp.2018.25.7.811

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…Samnamul is the aerial part of Aruncus dioicus, a plant that belongs to the family Rosaceae [9]. Samnamul has a unique flavor, is very nutritious, and widely grown in mountain areas of Japan, China, and Korea, and is inexpensive [10,11]. Samnamul contains dietary fiber, minerals, vitamin A, phenolic compounds, monoterpenoids, and saponins.…”

Section: Introductionmentioning

confidence: 99%

Samnamul (Shoots of Aruncus dioicus) Inhibit Adipogenesis by Downregulating Adipocyte-Specific Transcription Factors in 3T3-L1 Adipocytes

Lee

Park²,

Seo

et al. 2020

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Adipocyte-specific transcription factors and antioxidants are considered the best target of obesity. Aruncus dioicus var. kamtschaticus (A. dioicus, Samnamul) is easily available owing to edible and inexpensive. However, the anti-adipogenic effects of the underlying mechanism of A. dioicus extract (ADE) have not yet been reported. In the present study, we evaluate anti-adipogenic pathway in 3T3-L1 adipocytes, antioxidant activities and quantified phenolics using high-performance liquid chromatography of ADE. The results revealed ADE had reduced adipocyte differentiation (0.72-fold vs. MDI (media of differentiation) control), triglyceride (TG; 0.50-fold vs. MDI control, p < 0.001), and total cholesterol contents (0.77-fold vs. MDI control) by regulating adipocyte-specific transcription factors (C/EBPα, PPARγ, and SREBP1) and their downstream mRNA (AdipoQ, Ap2, SREBP1-c, and FAS) levels. Furthermore, ADE has higher total phenol and flavonoid contents and scavenging assay in the DPPH and ABTS+. In particularly, ADE contains chlorogenic acid (7.04 mg/kg), caffeic acid (20.14 mg/kg), ferulic acid (1.74 mg/kg), veratric acid (29.31 mg/kg), cinnamic acid (4.70 mg/kg), and quercetin (4.18 mg/kg). In conclusion, since these phenols, especially quercetin, in the ADE appear to reduce differentiation, TG and cholesterol content by regulating adipocyte-specific transcription factors in adipocytes, ADE has the potential to be developed into a new antioxidant and anti-obesity therapeutics.

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Section: Introductionmentioning

confidence: 99%

Samnamul (Shoots of Aruncus dioicus) Inhibit Adipogenesis by Downregulating Adipocyte-Specific Transcription Factors in 3T3-L1 Adipocytes

Lee

Park²,

Seo

et al. 2020

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Quality characteristics of ginger and ginger pomace powder by freeze-drying

2024

Food Sci. Preserv.

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We investigated the quality characteristics of ginger and the discarded ginger pomace after juicing, including general components, functional components, and antioxidant activity, to provide basic data on the possibility and usability of using them as food materials. When ginger was hot-air drying and freeze-drying, the total polyphenol content was 103.88 mg/100 mL and 108.68 mg/100 mL, respectively, which was higher than that of ginger pomace. DPPH radical scavenging activity was 70.84% and 77.88% for freeze-drying ginger and ginger pomace, respectively, and ABTS radical scavenging activity was high at 95.5% when ginger pomace was freeze-dried. The gingerol content was 680.90 mg% and 708.03 mg% in hot-air drying and freeze-drying ginger, respectively. In the case of ginger pomace, it was 914.47 mg% and 964.33 mg%, indicating that the functional components were higher in ginger pomace. Based on these results, it was concluded that when ginger and ginger pomace were processed by hot-air drying and freeze-drying, not only ginger but also ginger pomace showed overall functional component content and antioxidant activity. Thus it is judged that it can be utilized in various ways as a food material.

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Physicochemical properties and antioxidant activities of spray-dried powder from safflower extract

Lim¹,

Hong²

2021

Korean J. Food Preserv.

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This study was conducted to examine the physicochemical properties and antioxidant activities of spray-dried (SD) powders using different cyclodextrin and maltodextrin ratios of safflower extract. The extraction yield of SD powders was 68.02-87.68%. The moisture content of 10% maltodextrin spray-dried powder (MD10) was higher than that of the other powders investigated. The color values L, a, and b of SD powders were higher than those of freeze-dried (FD) powder. The particle size increased as the wall material increased. Scanning electron microscope (SEM) images showed that the SD powders were spherical. The water absorption index and water solubility index of the SD powders were 0.55-0.61 and 90.67-96.67%, respectively. The decomposition temperature of SD powders was 283℃. The concentration of the phenolic compounds of MD10 (1.07 g/100 g) was higher than those of the SD powders (0.20-1.06 g/100 g). The DPPH and ABTS radical scavenging activities of MD10 at 1,000 μg/mL were 13.40 and 24.10%, respectively. The FRAP activity of SD powders from 100 to 1,000 μg/mL was 16.70 to 191.57 μM, respectively. The superoxide radical scavenging activity of MD10 (85.37%) was superior to those of other SD powders. This study suggests that SD powders with safflower extract have enhanced storage stability and may be useful as functional processing materials.

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Effect of freeze, hot-air, and vacuum drying on antioxidant properties and quality characteristics of samnamul (Aruncus dioicus var. kamtschaticus)

Abstract: Effect of freeze, hot-air, and vacuum drying on antioxidant properties and quality characteristics of samnamul (Aruncus dioicus var.

Cited by 7 publications

References 19 publications

Samnamul (Shoots of Aruncus dioicus) Inhibit Adipogenesis by Downregulating Adipocyte-Specific Transcription Factors in 3T3-L1 Adipocytes

Samnamul (Shoots of Aruncus dioicus) Inhibit Adipogenesis by Downregulating Adipocyte-Specific Transcription Factors in 3T3-L1 Adipocytes

Quality characteristics of ginger and ginger pomace powder by freeze-drying

Physicochemical properties and antioxidant activities of spray-dried powder from safflower extract

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