• Title/Summary/Keyword: 알팔파

Search Result 185, Processing Time 0.026 seconds

Transformation of Alfalfa by BcHSP17.6 Gene using Agrobacterium tumefaciens (BcHSP17.6 유전자 도입에 의한 알팔파의 형질전환)

  • Kim, K.Y.;Sung, B.R.;Rim, Y.W.;Choi, G.J.;Lim, Y.C.;Jang, Y.S.;Seo, S.;Yoon, S.H.;Park, G.J.;Jo, J.
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.21 no.3
    • /
    • pp.151-156
    • /
    • 2001
  • This study was conducted to obtain the transformed alfalfa (Medicago sativa L.) plants with thermotolerance gene (BcHSP17.6) using Agrobacterium tumefaciens LBA4404 and we confirmed the transformed gene from the regenerated alfalfa plants. The expression vector, pBKH4, harboring BcHSP17.6 gene was used for production of transgenic alfalfa plants. In a process for transformation, the callus of alfalfa was cocultivated with Agrobacterium tumefaciens and transformed calli were selected on kanamycin-containing SH-3-kc medium to regenerate into into the plant. The complete transgenic alfalfa plants were produced by cultivation for about 4 months on several regeneration media, SH-nk-c, SH-l lb-c, SH-sp-c, and SH-IBA. The transgenic alfalfa plants were analyzed by isolation of genomic DNA and PCR/Southem blot.

  • PDF

Extraction of Natural Emulsifier from Medicago sativa L. and Sapindus saponaria L.: Optimization using CCD-RSM (알팔파 및 무환자나무열매로부터 천연유화제의 추출: CCD-RSM을 이용한 최적화)

  • Hong, Seheum;Lee, Seung Bum
    • Applied Chemistry for Engineering
    • /
    • v.33 no.3
    • /
    • pp.272-278
    • /
    • 2022
  • In this study, natural emulsifiers were extracted from Medicago sativa L. and Sapindus saponaria L. The extraction yield using CCD-RSM and the extraction process of foaming stability of the extracted product were optimized and 95% confidence interval was used to confirm the statistical reasonableness of the optimization. Herein, independent parameters were the ethanol volume and extraction temperature, whereas reaction parameters were the extraction yield and foaming stability. Under the condition of 53.5 vol% ethanol and extraction temperature (70.9 ℃), the maximum yield and foaming stability of the extracted product from Medicago sativa L were predicted as 26.2 wt% and 44.5%, respectively. In the case of the extraction from Sapindus saponaria L, the maximum yield and foaming stability were expected to be 31.9 wt% and 47.5% under the optimized conditions including 60.4 vol% of ethanol and extraction temperature (72.4 ℃). The average experimental error for validating the accuracy was about 3.4(± 0.3)% and 5.0(± 0.04)% for the extraction processes from Medicago sativa L. and Sapindus saponaria L., respectively.