• Title/Summary/Keyword: Production ability

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Specificity of Auxin Action on Ethylene Production in Corn Coleoptile Segments (옥수수(Zea mays L.) 자엽초 절편에서 에틸렌 생성에 대한 오옥신의 작용 특성)

  • 윤인선
    • Journal of Plant Biology
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    • v.34 no.4
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    • pp.325-330
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    • 1991
  • The ability of several auxin analogs to induce ethylene production was tested in the corn coleoptile. The synthetic auxins 1-naphthaleneacetic acid (1-NAA) and 2, 4-dichlorophenoxyacetic acid (2, 4-D) had strong stimulatory effects on ethylene induction surpassing that of IAA. Both 2-naphthalaneacetic acid (2-NAA) and 2, 6-dichlorophenoxy acetic acid (2, 6-D), structural analogs of these auxins, respectively, were found to be inactive. Treatment with NPA, a strong inhibitor of polar auxin transport, led to drastic increase in IAA-induced ethylene production while it has bo effect on ethylene production induced by 1-NAA. A positive correlative existed between intracellular auxin level and ethylene production.

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Antioxidative and Anti-Inflammatory Activities of Salvia plebeia R. Br Extracts (배암차즈기(Salvia plebeia R. Br.)의 항산화 활성 및 항염증효과)

  • Lee, Yeong-Ye;Kang, Soon Ah
    • The Korean Journal of Food And Nutrition
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    • v.33 no.5
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    • pp.483-492
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    • 2020
  • This study provides data to explore functional medicinal food materials that can prevent adult diseases, and verified antioxidant and anti-inflammatory of each solvent fraction of the methanol extract of Salvia plebeia R. Br. in Korea. In the analysis of total phenol content, DPPH radical scavenging ability, and FRAP reduction ability as indicators of antioxidant activity, the methanol fraction and ethyl acetate fraction of the Salvia plebeia R. Br. group showed high antioxidant activity. Ethyl acetate fraction of Salvia plebeia R. Br. methanol extract also showed excellent antioxidative activity as compared with BHT. In the mouse macrophage line Raw 264.7 cells, the NO production ability by LPS treatment was significantly increased in the LPS treatment group compared to the untreated group. In inflammatory reactions induced by LPS treatment in Raw 264.7 cells, inflammatory cytokines (TNF-α, PGE2, IL-1β) and NO production were decreased in the EtOAc fraction and MeOH fraction of the methanol extract of Salvia plebeia R. Br. compared to the case of LPS treatment alone. The anti-inflammatory effect was proved by significantly inhibiting the production of inflammatory cytokines. The present results suggest that Salvia plebeia R. Br. supplementation is beneficial for the suppression of antioxidant and anti-inflammation.

Nitric Oxide Production Inhibitory Effects of Three Caffeoylquinic Acids Isolated from Hot Water Extract of Eriobotrya japonica L. Leaves (비파엽 열수 추출물에서 분리한 Caffeoylquinic Acid 3 종의 Nitric Oxide 생성 억제 효과)

  • Kim, Sun Min;Kim, A Young;Lee, Kyoung In
    • Korean Journal of Medicinal Crop Science
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    • v.28 no.4
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    • pp.245-253
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    • 2020
  • Background: Research on hot water extracts of medicinal plants that are easily applicable in the clinical setting is essential. To confirm the anti-inflammatory-related active compounds present in the hot water extract of Eriobotrya japonica leaves, ability to inhibit nitric oxide (NO) production was measured and active compounds isolated from the extract were analyzed. Methods and Results: Sovent fractionation by solvent was performed to identify the active compounds present in the hot water extract, and the ability of the extract and the fractions obtained to inhibit NO production was measured. Subsequently, based on the results of liquid chromatography (LC) profile analysis of the n-butanol fraction that had a relatively high inhibitory ability of NO production, six subfractions were separated around the main peak. Among the separated subfractions spectra from mass spectroscopy (MS) were analyzed and standard comparisons were performed on the compounds of the three main peaks on the chromatogram. NO production inhibitory activity of subfraction 2 identified as neochlorogenic acid was the highest with an IC50 of 18.49 ㎍/㎖ followed by that of subfraction 5 identified as cryptochlorogenic acid with IC50 of 25.82 ㎍/㎖. Conclusions: Our result, it was confirmed that several caffeoylquinic acids, including neochlorogenic acid and cryptochlorogenic acid present in the hot water extract of E. japonica leaves have an important role as compounds exhibiting anti-inflammatory activity.

Replacing alfalfa hay with amaranth hay: effects on production performance, rumen fermentation, nutrient digestibility and antioxidant ability in dairy cow

  • Jian Ma;Xue Fan;Guoqing Sun;Fuquan Yin;Guangxian Zhou;Zhihui Zhao;Shangquan Gan
    • Animal Bioscience
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    • v.37 no.2
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    • pp.218-227
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    • 2024
  • Objective: The aim of this research was to explore the effects of dietary substitution of alfalfa hay by amaranth hay on production performance, rumen fermentation, nutrient digestibility, serum biochemical parameters and antioxidant ability in dairy cows. Methods: A total of 45 healthy Holstein cows with same parity and similar milk yield and body weight were randomly divided into 3 groups: control diet without amaranth hay (CON) or 50% and 100% alfalfa hay replaced by an equal amount of amaranth hay (dry matter basis, AH1 and AH2, respectively). All the cows were fed regularly 3 times a day at 06:30, 14:30, and 22:30 and had free access to water. The experiment lasted for 60 d. Results: The dry matter intake of CON and AH1 groups was higher (p<0.05) than that of AH2 group. Compared with AH1 group, the milk yield of AH2 group was reduced (p<0.05). Moreover, dietary substitution of alfalfa hay by amaranth hay increased (p<0.05) milk fat, ammonia nitrogen and acetate concentrations. However, the crude protein digestibility of AH2 group was lower (p<0.05) than that of CON group, while an opposite tendency of serum urea nitrogen was found between two groups. The neutral detergent fiber digestibility of AH1 group was increased (p<0.05) when compared to AH2 group. Amaranth hay treatment increased (p<0.05) the serum concentration of glutathione peroxidase in dairy cows. Compared with CON group, the malonaldehyde activity of AH1 group was decreased (p<0.05). Conclusion: Dietary replacing alfalfa hay with amaranth hay (50% ratio) in dairy cows did not affect production performance but improved their antioxidant ability.

Development of University Liberal Education Curriculum for Creating Video Content -Understanding and Production of Video Content- (영상콘텐츠 제작을 위한 대학 교양 커리큘럼 개발 -영상콘텐츠의 이해와 제작-)

  • Park, Sung-Dae
    • Journal of Korea Multimedia Society
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    • v.23 no.6
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    • pp.792-801
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    • 2020
  • Today, the media environment has changed dramatically with the development of Internet transmission technology, computer performance, and various media production technologies. In particular, video content is widely used every day through mobile device or computer connected to the Internet. In addition, the ability to produce video content today is more important than ever, as the use of video content is also increasing in the area of information delivery and communication over the Internet. In this study, it was developed a liberal education curriculum in universities for the production of video content. The developed curriculum was composed of a combination of an online curriculum for theory and an offline curriculum for practicum. In the online curriculum, a 54 DOOR contents were developed to allow students to learn the theoretical knowledge and basic making techniques related to the production of video content. In an offline 15-week practicum curriculum, it covered the practical training contents of video content production that should be acquired every week. This developed liberal education curriculum aims to give non-major students in universities the opportunity to learn the technology of producing video content and to foster the ability to communicate in the media environment by using the video content produced.

Production Characteristics of Bioflocculant by Achromobacter sp. JY-66 (Achromobacter sp. YJ-66에 의한 생물응집제의 생산 특성)

  • 우정숙;정준영;정만재;도대홍
    • Microbiology and Biotechnology Letters
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    • v.27 no.6
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    • pp.433-439
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    • 1999
  • Among microorganisms isolated from soil, YJ-66 strain was the best producer of flocculant and was examined for flocculating ability in the active carbon and CaCl2. YJ-66 strain was the best producer of flocculant and was examined for flocculating ability in the active carbon and CaCl2. YJ-66 strain was identified to be a species belonging to the genus Achromobacter. The optimum culture condition for production of bioflocculant with the isolated strain was for 72hrs at 3$0^{\circ}C$ and pH7.5. The favorable carbon, nitrogen sources and inorganic salts for production of the flocculant were sucrose, peptone, MgSO4 and KH2PO4, whose optimal concentrations were 2%. 0.067%, 0.1% and 0.1%, respectively. Addition of the carbon and inorganic salts significantly increased the production of flocculant. Compositions of optimized culture medium for bioflocculant production by Achromobacter sp. YJ-66 were 2% sucrose, 0.067% peptone, 0.1% MgSO4 and 0.1% KH2PO4 in initial pH 7.5 during at 3$0^{\circ}C$ for 72hrs.

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Two Threonine Residues Required for Role of AfsKav in Controlling Morphogenesis and Avermectin Production in Streptomyces avermitilis

  • Rajkarnikar, Arishma;Kwon, Hyung-Jin;Ryu, Yeon-Woo;Suh, Joo-Won
    • Journal of Microbiology and Biotechnology
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    • v.17 no.9
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    • pp.1563-1567
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    • 2007
  • AfsKav is a eukaryotic-type serine/threonine protein kinase, required for sporulation and avermectin production in Streptomyces avermitilis. In terms of their ability to complement SJW4001 (${\Delta}afsK$-av), afsK-av mutants T165A and T168A were not functional, whereas mutants T165D and T168D retained their ability, indicating that Thr-165 and Thr-168 are the phosphorylation sites required for the role of AfsKav. Expression of the S-adenosylmethione synthetase gene promoted avermectin production in the wild-type S. avermitilis, yet not in the mutant harboring T168D or T165D, demonstrating that tandem phosphorylation on Thr-165 and Thr-168 in AfsKav is the mechanism modulating avermectin production in response to S-adenosylmethione accumulation in S. avermitilis.

Strengthen the Construction of Water Resources Monitoring Ability, Support the Strictest System of Water Resources management

  • Jiang, Yun-Zhong;Yi, Wan
    • Proceedings of the Korea Water Resources Association Conference
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    • 2012.05a
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    • pp.27-33
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    • 2012
  • At present, the overall water resources monitoring ability in China is weak since there is an absence of a sound monitoring system and comprehensive monitoring information. In addition to the problem of weak management ability in monitoring, measurement and information, it can hardly meet the need of implementing the strictest management system of water resource and also restricts the practice of the system to some extent. The production states the necessity of further development of water resources monitoring ability and points out the concept of "One Country, One Account" for constructing water resources information. There is an analysis on the demand on further development of water resources monitoring ability and profound discussion about the strategies for supporting "three red-line" management.

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Theoretical Approach for Estimation of Value in Home Production (가정생산의 가치산정을 위한 이론적 접근)

  • 채경희;문숙재
    • Journal of Families and Better Life
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    • v.7 no.1
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    • pp.43-57
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    • 1989
  • In the materialistic societies, individuals get money return according to the importance of their roles. But unlike wage workers who are engaged in market production , housewives engaged in home production do not get that return. It is because the result of home production is not transacted in the market and the price is not given to it, so the value of home production is not estimated. Hence this study trcognizes again the value of home production, suggests the estimation methods of it in input and output based on home production systems and attempts to actualize those methods socially. This home production develops the human attributes of family members to act as a member of a society and potentially contributes to home income and Gross National Products, so it has social and economic value. In spite of that significance, the value of home production is not estimated, so its nor recognized and housewives engaged in home production are not acknowledged their ability. Hence based on home production systems form input to output, this study suggested opportunity cost method and market cost method in input, method by saving money expenditure, hybrid method and method by comparing with market in output.

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Evaluation and Comparison of Antioxidant Activities of Nineteen Commercial Carbonated Vinegar Liquors (19종 시판 탄화초액의 항산화활성의 평가 및 비교)

  • Kim, Sung-Phil;Nam, Seok-Hyun
    • Journal of Applied Biological Chemistry
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    • v.52 no.4
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    • pp.174-179
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    • 2009
  • Biological functionality of nineteen commercially available carbonated vinegar liquors including wood vinegar liquor (WVL), bamboo vinegar liquor (BVL) and chaff vinegar liquor (CVL) were evaluated, focusing mainly on electron donating ability to DPPH radical, reducing power against ferricyanide ($Fe^{3+}$), blockading ability to linoleic acid autoxidation and NO production from LPS-stimulated RAW264.7 cells plus cytotoxicity to RAW264.7 cells. The results showed that crude carbonated vinegar liquors, regardless of their source materials, have high capacity of antioxidation such as electron donating ability, reducing power, blockading ability to lipid peroxidation and NO production, as well as cell cytotoxicity. Refined carbonated vinegar liquors for skin care or bath showed significantly low cell cytotoxicity, however, overall antioxidant potencies were also low. Especially, these carbonated vinegar liquors revealed low levels of inhibition for NO production deeply involved in inflammation. Among nineteen carbonated vinegar liquors examined, chaff vinegar liquor was observed to be the most potent carbonated vinegar liquor with high antioxidant activities together with low cytotoxicity to mammalian cells.