• Title/Summary/Keyword: forest resources

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Improvement of the Quality of Dried Wild Vegetables by Micro Oil Sprayed Thermal Air Technique

  • Yonghyun Kim;Yunmi Park;Chul-Woo Kim;Uk Lee;Hyun Ji Eo
    • Korean Journal of Plant Resources
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    • v.35 no.6
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    • pp.778-784
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    • 2022

  • Wild vegetables, such as Cirsium setidens, and Aster scaber, are commonly distributed as dried materials because the wild vegetables lose their freshness quickly after harvest and distribution. Dried wild vegetables require rehydration to use as a food ingredient, and the quality of rehydrated wild vegetables is affected by pre-drying and drying methods. Here, we introduce the newly developed pre-drying and drying method, termed "micro oil sprayed thermal air (MOTA) technique". The three wild vegetables processed by the MOTA technique showed improved rehydration rate and reduced time to achieve maximum rehydration rate. Color characteristics were also improved in C. setidens. These results indicate that the MOTA technique improves the overall quality of rehydrated wild vegetables. It is expected that our findings could enhance the marketability of dried wild vegetables by improving overall quality and reducing preparation time.

  • https://doi.org/10.7732/kjpr.2022.35.6.778 인용 PDF KSCI

Development of a System Dynamics Model For Estimating the Volume of Forest Resources and Function of Public Benefit (산림자원 및 산림의 공익기능량 추정을 위한 시스템다이내믹스 모형 개발)

  • Cho, Yoon-Sook
    • Korean System Dynamics Review
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    • v.15 no.3
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    • pp.5-36
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    • 2014

  • The purpose of this paper is to develop a System Dynamics model for estimating the volume of forest resources in the future and simulating the volume of function of public benefit linked to forest resources in dynamic manner. Also it is to analyze the impact when the volume of forest land conversion is controlled by policy using the SD model. The analysis was done at nation-wide for the simulation period 2000 to 2040. Estimated forest area was 6.2 million ha and estimated growing stock was $4.7\;billion\;m^3$ in 2040 from the future forecast without policies. Changing of forest resources, 13.9 billion tons of forest-ground-water storage was estimated, $1.8\;million\;m^3$ of erosion control of forest was estimated and 377 million tons of $CO_2$ absorption was estimated. As a result of simulation with two alternatives, forest area was less reduced and growing stock was bigger than do nothing policy. Also, function of public benefit reflected by changes of forest resources was enhanced. This study contributes to estimate the quantitatively measured volume of forest resources and function of public benefit over the 30 years in Korean forest land in scientific way. Using this SD model, decision maker would develop forest land policies more delicately for deserving forest resources and increasing the volume of function of public.

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Anti-inflammatory Effect of Leaves Extracts from Aralia cordata through Inhibition of NF-κB and MAPKs Signaling in LPS-stimulated RAW264.7 Cells

  • Ji, Eo Hyun;Kim, Da Som;Sim, Su Jin;Park, Gwang Hun;Song, Jeong Ho;Jeong, Jin Boo;Kim, Nahyun
    • Korean Journal of Plant Resources
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    • v.31 no.6
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    • pp.634-640
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    • 2018

  • Aralia cordata (A. cordata), which belongs to Araliaceae, is a perennial herb widely distributed in East Asia. We evaluated the anti-inflammatory effect of stems (AC-S), roots (AC-R) and leaves (AC-L) extracted with 100% methanol of A. cordata and elucidated the potential signaling pathway in LPS-stimulated RAW264.7 cells. The AC-L showed a strong anti-inflammatory activity through inhibition of NO production. AC-L dose-dependently inhibited NO production by suppressing iNOS, COX-2 and $IL-{\beta}$ expression in LPS-stimulated RAW264.7 cells. AC-L inhibited the degradation and phosphorylation of $I{\kappa}B-{\alpha}$, which donated to the inhibition of p65 nuclear accumulation and $NF-{\kappa}B$ activation. Furthermore, AC-L suppressed the phosphorylation of ERK1/2 and p38. These results suggested that AC-L may utilize anti-inflammatory activity by blocking $NF-{\kappa}B$ and MAPK signaling pathway and indicated that the AC-L can be used as a natural anti-inflammatory drugs.

  • https://doi.org/10.7732/kjpr.2018.31.6.634 인용 PDF KSCI HTML