• Title/Summary/Keyword: 생강

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Sensory Characteristics of Dehydrated Ginger Rhizomes Prepared using Recycled Dehydrating Liquid as an Alternative Dehydrating Agent (재사용 탈수액을 탈수제로 이용한 생강의 탈수 및 품질특성)

  • Lee, Hyun-Seok;Kwon, Ki-Hyun;Kim, Byeong-Sam;Cha, Hwan-Soo
    • Food Science and Preservation
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    • v.17 no.3
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    • pp.358-364
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    • 2010
  • Ginger was dried using maltodextrin or recycled dehydration liquid as dehydrating agents, and the quality of dried ginger was compared with that of freeze-dried and hot-air-dried samples in terms of color, moisture content, water activity, dehydration rate, rehydration rate, and sensory properties. Ginger prepared using molecular press dehydration (MPD) retained its original color. The dehydration rate increased when ginger was dried using a dehydrating agent. The rehydration rate was increased in ginger dried using such an agent. Both dehydration and rehydration rates were elevated with increasing concentrations of soluble solids in the dehydration liquid. The sensory qualities of ginger prepared using the MPD method were better than those of freeze-dried and hot air-dried samples. These results indicate that drying of ginger rhizomes using recycled dehydrating liquid is very efficient.

Pathogenicity and Mycological Characteristics of Pythium myriotylum Causing Rhizome Rot of Ginger (생강뿌리썩음병균 Pythium myriotyrum의 병원성 및 균학적 특성)

  • Kim, Choong-Hoe;Yang, Sung-Seok;Park, Kyong-Seok
    • Korean Journal Plant Pathology
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    • v.13 no.3
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    • pp.152-159
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    • 1997
  • Six pathogenic Pythium isolates obtained from diseased ginger rhizomes were identified as Pythum myriotyrum Drechsler based on various morphological and physiological characteristics. The isolates showed strong virulence on underground parts of buds, crowns, rhizomes, roots and aerial parts of leaves and stems as well. The isolates caused rot of germinated seeds of 10 different crops tested, including cucumber and pepper, and markedly inhibited seedling growth of 3 crops tested, including corn and barley. Maximum, optimum and minimum growth temperatures for P. myriotylum were 39~45$^{\circ}C$, 33~37$^{\circ}C$ and 5~7$^{\circ}C$, respectively. Optimum pH for the growth was 6~7. Mycelial linear growth was most rapid on V-8 juice agar, but aerial mycelia were most abundant on PDA and corn meal agar. Zoosporangial and oogonial formation was greatest on V-8 juice agar. Optimum temperatures for the production of zoosporangia and oogonia were 20~35$^{\circ}C$ and 15$^{\circ}C$, respectively.

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Effect of Rhizome Size on Growth and Yield of Ginger (종강의 크기가 생강의 생육 및 수량에 미치는 영향)

  • Choi, Jae-Eul;Kim, Jung-Sun;Lee, Eun-Jeong
    • Korean Journal of Agricultural Science
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    • v.25 no.1
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    • pp.1-5
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    • 1998
  • This study was investigated to find out the optimum rhizome size of ginger characteristics and yield at two planting densities. Seventy five gram of rhizome gave best performance for plant height and yield with comparison with the other sizes at two planting densities. Among 25g, 50g and 75g of ginger rhizome size were not significantly different in plant height and yield at $30{\times}30cm$ planting density. But, 25g of rhizome size is economically recommended at $30{\times}30cm$ planting densities.

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