• Evaluation of the Effects of Hangover-Releasing Agent Containing Vinegar Extract in Common Buckwheat and Tartary Buckwheat on Alcohol Metabolism and Hangover Improvement

    일반메밀과 쓴메밀의 식초 추출물의 알코올 대사 및 숙취개선 효능 평가

    Su Jeong Kim, Hwang Bae Sohn, A Hyun Park, Jong Nam Lee, Su Hyoung Park, Jung Hwan Nam, Do Yeon Kim, Dong Chil Chang, Yul Ho Kim

    김수정, 손황배, 박아현, 이종남, 박수형, 남정환, 김도연, 장동칠, 김율호

    The aim of this study was to explore the effects of vinegar extract from seed of common buckwheat (Fagopyrum esculentum Moench) … + READ MORE
    The aim of this study was to explore the effects of vinegar extract from seed of common buckwheat (Fagopyrum esculentum Moench) and seed of tartary buckwheat (F. tataricum Gaertner) on acute ethanol-induced hangover in Sprague-Dawley rats. Vinegar extract from buckwheat is rich choline, quercetin and its glycoside, rutin known as flavonoid antioxidants. The test extract containing buckwheat was proven to alleviate hangovers through a significant reduction in the concentration of alcohol and acetaldehyde in the context of an alcohol-induced hangover model. Hepatic alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities were significantly higher in buckwheat vinegar-treated rats than in ethanol-treated rats. Moreover, tartary buckwheat vinegar upregulated antioxidant enzyme such as superoxide dismutase and Catalase activities in liver tissues. These results suggest that buckwheat vinegar extract could alleviate ethanol-induced hangover symptoms by elevating activities related to hepatic ethanol-metabolizing enzymes against ethanol induced metabolites, and in particular, tartary buckwheat should be further developed to be a novel anti-hangover material. - COLLAPSE
    1 October 2023
  • Assessing the Potential Utilization Value of Peony Byproducts: Comparative Evaluation of Bioactivities in Peony Seed Oil and Cake Extract

    작약 종자 오일 및 유박 추출물의 생리활성 비교를 통한 작약 부산물의 잠재적 이용 가치 평가

    Hamin Lee, Kyungtae Park, Huijin Heo, Junsoo Lee, Kwang-Yup Kim, Ju-Sung Cho

    이하민, 박경태, 허희진, 이준수, 김광엽, 조주성

    This study aimed to assess the potential use of Paeonia lactiflora Pall. seed cake (PSC). The extraction yield of the PSC extract … + READ MORE
    This study aimed to assess the potential use of Paeonia lactiflora Pall. seed cake (PSC). The extraction yield of the PSC extract ranged from 22% to 45%, depending on the extraction solvent used. The PSC extract showed significantly higher levels of total polyphenols and flavonoids contents, and radical scavenging compared to the P. lactiflora seed oil (PSO) extract. The antibacterial activity of the PSC extract was superior to that of the positive control and remained effective for up to 48 hours. Furthermore, when the PSC extract was applied, it significantly reduced the inflammatory response induced by LPS, demonstrating the anti-inflammatory activity of PSC. This study confirmed the effective bioactivity not only in PSO, but also in the PSC extract, highlighting the potential of PSC as a bio-health ingredient. - COLLAPSE
    1 October 2023
  • Growth of Intestinal Bacteria and Intestinal Inflammation of Sprout Extract from Common Buckwheat and Tartary Buckwheat

    일반메밀과 쓴메밀의 새싹 추출물의 장내 유익균 증식 및 염증조절 효능 평가

    Su Jeong Kim, Hwang Bae Sohn, Jong Won Kim, Sanghyun Lim, Jong Nam Lee, Su Hyoung Park, Jung Hwan Nam, Do Yeon Kim, Ye Jin Lee, Dong Chil Chang, Yul Ho Kim

    김수정, 손황배, 김종원, 임상현, 이종남, 박수형, 남정환, 김도연, 이예진, 장동칠, 김율호

    We aimed to assess the potential growth-promoting effects of buckwheat sprout on intestinal bacteria and their anti-inflammation effects in a cellular model … + READ MORE
    We aimed to assess the potential growth-promoting effects of buckwheat sprout on intestinal bacteria and their anti-inflammation effects in a cellular model of intestinal inflammation. The growth of Bifidobacterium longum ssp. infantis BT1 was enhanced with the addition of the sprout extract of tartary buckwheat. Further, in the inflammatory model cells cultured with Raw 264.7 cells were treated with buckwheat sprout including each 10 probiotics before the addition of lipopolysaccharide (LPS) to induce inflammation in Raw 264.7 cells. Buckwheat sprout in both Bifidobacterium longum ssp. infantis BT1 and Lacticaseibacillus paracasei LPC5 significantly reduced the production of NO and PGE2. The above results indicate that buckwheat sprout extract which contains with various physiologically active substances such as rutin, quercetin, and choline is effective in suppressing NO and PGE2 production, which are inflammation-related indicators. The present study suggests that buckwheat sprout could induce positive effects on the intestinal beneficial bacteria and in anti-inflammation. - COLLAPSE
    1 October 2023
  • Floristic Study of the Freshwater Plants in Taean Peninsula- Focusing on Aquatic and Wetland Plants -

    태안반도의 담수식물상(수생 및 수변식물을 중심으로)

    Jeong-Ki Hong, Kyoung-Su Choi, Hee-Hyeok Kang, Nae-Kyu Park, Hwang Yong

    홍정기, 최경수, 강희혁, 박내규, 황용

    Six field surveys were conducted at 29 locations from April 2020 to April 2022 to identify the freshwater flora of the Taean … + READ MORE
    Six field surveys were conducted at 29 locations from April 2020 to April 2022 to identify the freshwater flora of the Taean Peninsula. Based on the collected specimens, the vascular plants of the Taean Peninsula were summarized as 391 taxa: 94 families, 248 genera, 362 species, 5 subspecies, and 24 varieties. Freshwater plants in the Taean Peninsula consisted of 104 taxa, 45 taxa for aquatic plants, and 59 taxa for wetland plants. When classified by life history, annuals accounted for 33 taxa, winter annuals 5 taxa, biennial 6 taxa, and perennials accounted for most of the 60 taxa. Among the 391 identified taxa, 2 taxa of Endangered plants, 3 taxa of Korean endemic plants, 5 taxa of IUCN red list plants, 49 taxa of Korean floristic target plants, 38 taxa of biological resources subject to the approval of outbound transfer, 55 taxa alien plants and 7 taxa of ecosystem disturbing plant. The results of this study are intended to be used as basic data on the freshwater environment and distribution of aquatic plants in the Taean Peninsula. - COLLAPSE
    1 October 2023
  • Growth & Development and Fruit Characteristics of Newly Bred and Introduced Grape Cultivars

    최근 육성 포도 품종과 해외 도입 품종들의 생육 및 과실 특성 분석

    Su Jin Kim, Dong Hoon Lee, Youn Young Hur, Dong Jun Im, Seo Jun Park

    김수진, 이동훈, 허윤영, 임동준, 박서준

    This study was conducted to investigate the growth and fruit characteristics of recently introduced or bred varieties in Korea and to review … + READ MORE
    This study was conducted to investigate the growth and fruit characteristics of recently introduced or bred varieties in Korea and to review domestic adaptability. As for the sprouting rate among cultivars, ‘Stella’ was the highest at 91.6%, followed by ‘My Heart’ (78.3%), ‘IFG-6’ (77.3%), and ‘Hongju Seedless’ (73.2%). As for the flower incidence rate by cultivar, 'Stella' was the highest at 113.5%, and ‘IFG-6’ had a lower flower incidence at 45.3% compared to other cultivars. The diameter of shoots was less than 11.0 ㎜ in the other three cultivars except for ‘Hongju Seedless’, and ‘Hongju Seedless’ was the thickest at 12.5 ㎜ and ‘Stella’ was the thinnest at 9.6 ㎜. The berry weight of 'My Heart' was 11.3 g, heavier than other cultivars, followed by ‘Stella’, ‘IFG-6’ and ‘Hongju Seedless’. Soluble sugar content at harvest time by cultivar was about 19.0˚Bx or higher, with ‘IFG-6’ having the highest level of 20.2˚Bx, followed by ‘My Heart’, ‘Stella’, and ‘Hongju Seedless’. Acidity was the lowest in ‘My Heart’ at 0.39%, followed by ‘IFG-6’, ‘Stella’ and ‘Hongju Seedless’. As for the coloring, in the case of ‘My Heart’, the skin color did not change to red even after the harvest season, therefore the grapes were irregularly colored, so it was judged that the development of cultivation technology to enhance the coloring was necessary. - COLLAPSE
    1 October 2023
  • Expression of Organogenesis-related Genes and Analysis of Genetic Stability by ISSR Markers of Regenerants Derived from the Process of in vitro Organogenesis in Japanese Blood Grass (Imperata cylindrica ‘Rubra’)

    기내배양 홍띠 단계별 재분화체의 기관분화 관련 유전자 발현과 ISSR에 기반한 유전적 안정성 분석

    Ye-Jin Lee, In-Jin Kang, Chang-Hyu Bae

    이예진, 강인진, 배창휴

    The in vitro organogenesis is one of important issues in plant embryology, and somaclonal variations are existing in calli and/or regenerants induced … + READ MORE
    The in vitro organogenesis is one of important issues in plant embryology, and somaclonal variations are existing in calli and/or regenerants induced from a process of the organogenesis with in vitro circumstances. In this study, expressions of organogenesis-related genes were evaluated and genetic stability of regenerants derived from the process of in vitro organogenesis were measured using ISSR markers in Imperata cylindrica ‘Rubra’, Poaceae. The expressions of organogenesis-related genes were detected all of regenerants at the process of the organogenesis. All ISSR markers produced with an average of 71 bands per in vitro-cultured regenerants, and the scorable bands were varied from two to eight with an average of 5.14 bands per a primer. The polymorphism rates of the in vitro regenerants were higher than that of mother plants (1.4%), showing 4.1% (pot-cultured regenerants), 4.3% (field-cultured regenerants), 4.2% (in vitro-cultured regenerants), 5.6% (calli with green shoots) and 1.4% (calli), respectively. The genetic similarity matrix (GSM) among all accessions ranged from 0.747 to 1.0 with a mean of 0.868. GSM of the regenerants showed differences (from 0.972 to 1.00) compared with that of mother plants (0.991). According to the clustering analysis, two independent groups were divided into; the one is mother plants and regenerants cultured at room and open field, the other is regenerants cultured in vitro. The results give a new insight for understanding the dynamics of organogenesis in monocot plant. - COLLAPSE
    1 October 2023
  • Effect of GA3 Treatment on Seed Germination, Seedling Growth and Useful Component Content of Angelica acutiloba (Siebold & Zucc.) Kitagawa

    GA3 처리 왜당귀의 종자 발아, 유묘 생육 및 유용성분 특성 분석

    Dae Hui Jeong, Hong Woo Park, Young Ki Kim, Hae Yun Kwon

    정대희, 박홍우, 김영기, 권해연

    Germination, growth characteristics, and content of useful components were analyzed through GA3 treatment of Angelica acutiloba (Siebold & Zucc.) Kitagawa seeds, … + READ MORE
    Germination, growth characteristics, and content of useful components were analyzed through GA3 treatment of Angelica acutiloba (Siebold & Zucc.) Kitagawa seeds, to provide basic data for cultivation technology. The moisture absorption rate of the seeds was 62.07% after 2 hours of soaking, and the highest value was 122.15% after 48 hours. The appropriate seed germination temperature for the species ranged from 10℃ to 25℃. It was confirmed that the growth of seedlings increased as the GA3 concentration increased, but there was no significant difference in the content of useful components according to the GA3 treatment. - COLLAPSE
    1 October 2023
  • Comparison of Fruit Characteristics of ‘Fuji’/M.26 in Response to Ethephon Treatment and Combined Treatment of Ethephon and CaCl2 During Maturing Stages

    Ethephon 단용처리와 Ethephon 및 염화칼슘 혼합처리에 따른 사과 ‘Fuji’/M.26의 성숙기 과실특성 비교

    Sewon Oh, Seong Ho Moon, Keum-Il Jang, Junsoo Lee, Daeil Kim

    오세원, 문성호, 장금일, 이준수, 김대일

    The harvest time of the late-ripening ‘Fuji’ apple (Malus × domestica) is variable, depending on the coloration of the fruit … + READ MORE
    The harvest time of the late-ripening ‘Fuji’ apple (Malus × domestica) is variable, depending on the coloration of the fruit skin. Ethephon, a plant growth regulator, promotes the ethylene production and induces physiological responses associated with fruit maturation in climacteric fruit crops, such as apples. This study aimed to investigate the effect of ethephon treatment on fruit characteristics after fruit enlargement, with the objective of proposing an economical and stable harvest control method for ‘Fuji’/M.26 apples. Fruit characteristics were assessed at 10-days intervals following the application of 100 ㎎/L ethephon and mixture of 100 ㎎/L ethephon and 0.5% CaCl2 at 145 days after full bloom (DAFB). Starch contents of ethephon-treated (ET) and ethephon with CaCl2-treated (EC) apples began to decrease from 155 DAFB, and the starch contents of ET and EC at 10 days before harvest were similar to those of control at harvest time. Red coloration of fruit skin in EC was lower compared to ET but higher than control. The average fruit firmness was low in ET, while the control and EC exhibited similar levels of firmness. Fruit sugar acid ratios did not show significant differences between treatments. However, the titratable acidity of EC was significantly lower than that of the control at 10 days before harvest. Moreover, fruit sugar acid ratio of ET and EC at 10 days before harvest in 2021 was similar to their sugar acid ratio at harvest time. Therefore, it was thought that fruit maturation and skin coloration could be accelerated by 10 days from the harvest time through the combined treatment of 100 ㎎/L ethephon and 0.5% CaCl2 at the end of fruit enlargement in ‘Fuji’/M.26. - COLLAPSE
    1 October 2023
  • Comparison of Regeneration Conditions in Seven Pepper (Capsicum annuum L.) Varieties

    7종의 고추(Capsicum annuum L.) 재분화 조건 비교

    Min-Su Kim, Yun-Jeong Han, Sharanya Tripathi, Jinwoo Kwak, Jin-Kyung Kwon, Byoung-Cheorl Kang, Jeong-Il Kim

    김민수, 한윤정, 트리파티샤란야, 곽진우, 권진경, 강병철, 김정일

    Pepper (Capsicum annuum L.) is an important vegetable and spice crop that has been cultivated worldwide. Pepper fruits have unique taste … + READ MORE
    Pepper (Capsicum annuum L.) is an important vegetable and spice crop that has been cultivated worldwide. Pepper fruits have unique taste and aroma, providing a variety of antioxidants and compounds important for human health, which makes a high economic value. In addition, there is a high demand for new pepper varieties, according to consumer’s preference. However, pepper is a recalcitrant plant for in vitro tissue and organ differentiation and plant regeneration, which makes it difficult to develop demanded varieties using newly developed technologies such as genetic engineering and gene editing. In this study, tissue culture and regeneration conditions were investigated using seven pepper varieties that were obtained from the core-collection of Seoul National University. We observed callus and bud induction and shoot formation using several media composition composed of different cytokinins and auxin concentrations. As a result, it was found that there were differences in callus induction and shoot formation of each variety depending on the hormone composition, and the highest regeneration was shown when the medium containing Zeatin Riboside and the petioles of seedlings were used. In particular, out of seven pepper varieties, CMV980 exhibited a higher regeneration efficiency (approximately 48%) than other varieties, followed by Yuwolcho. Therefore, this study provides CMV980 and Yuwolcho as good candidates that can be used for pepper transformation, which might contribute to the development of various varieties through gene editing technology in the future. - COLLAPSE
    1 October 2023