• 식물조직배양학회지
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• 제26권1호
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• pp.37-40
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• 1999

부추의 미수분 자방배양에서 식물체 분화에 영향을 미치는 요인을 밝히고자 국내에서 수집된 재래종 3종과 일본에서 도입된 2품종을 이용하여 실험을 수행한 결과는 다음과 같다. 부추의 미수분 자방배양에서 일본 도입종인 그린벨트의 식물체 분화율은 7%로 낮은데 비해 국내 수집종 3종의 식물체 분화율은 25~31%로 매우 높게 나타났고 기내에서의 종자 형성률도 일본 도입종 보다는 국내 재래종에서 높게 나타났다. B$_{5}$배지에 배양된 자방의 식물체 분화율은 10.6%인데 비해 MS배지에서의 식물체 분화율은 21.3%로 높게 나타났다. 2,4-D가 첨가되지 않은 배지에 배양된 자방은 캘러스 형성과정을 거치지 않고 직접 식물체로 발달하였고 그 효율도 28.0%로 높게 나타났다. 그리고 배지내에서 2,4-D의 농도가 높아질 수록 캘러스 형성률은 증가되었으나 식물체 분화율은 현저히 줄어들었고 종자는 전혀 형성되지 않았으며 배지내에 활성탄의 첨가효과는 인정되지 않았다. 부추의 미수분 자방배양에서 자방만을 절취하여 배양하였을 때 식물체 분화율이 5%로 낮은데 비해 수술이 부착된 자방에서는 20%의 높은 분화율을 나타내었다.

• 한국식품영양학회지
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• 제22권1호
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• pp.1-7
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• 2009

In this study, we assessed the physicochemical and sensory characteristics of cookies containing various concentrations (0, 3, 5, 7 and 9%) of leek powder. The L values of cookies containing leek powder were significantly lower than those of the controls. The spread ratio decreased proportionally with the quantity of leek powder added to the cookie recipe. The loss rate and leavening rate of samples to which 3% and 5% leek powder was added evidenced a higher value than the samples to which 7% and 9% leek powder was added. The L value of brightness was significantly reduced when leek powder was added to the cookie recipe. The a and b values were also significantly reduced with the addition of leek powder. Hardness evidenced significantly high levels in the samples to which 3% and 5% leek powder was added. The results of our sensory evaluation evidenced significantly better appearance, flavor, color, texture and overall acceptability as compared to the 3% and 5% added samples. The observed quality characteristics of the 3% leek powder added samples and 5% leek powder added samples indicated the possibility that leek cookies might be developed.

• Food Science and Biotechnology
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• 제15권3호
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• pp.341-346
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• 2006

This study was performed to examine the effects of ${\gamma}$-irradiation on the volatile flavor compounds of dried leeks (Alliums tuberosum R.). Volatile compounds of dried leeks were extracted using simultaneous steam distillation and extraction (SDE), and analyzed by gas chromatography/mass spectrometry (GC/MS). Forty-one, 51, 45, and 42 compounds were tentatively identified in control, 1, 3, and 10 kGy irradiated samples, respectively. The constituents of flavor compounds in irradiated dried leeks were similar to non-irradiated samples. However, the intensities of the peaks were clearly different between them. Sulfur-containing compounds were detected as dominant compounds in all samples and their amounts decreased after ${\gamma}$-irradiation. ${\gamma}$-Irradiation reduced the total concentration of volatile compounds from leeks by 23.19, 15.09, and 30.23% at 1, 3, and 10 kGy doses, respectively.

• 한국식품영양과학회지
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• 제34권4호
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• pp.513-518
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• 2005

본 연구에서는 감마선 조사에 의한 부추의 휘발성 유기화합물의 변화를 관찰하였다. 조사되지 않은 부추와 20 kGy의 선량으로 조사된 부추를 SDE방법으로 유기화합물을 추출한 후 정유를 GC/MS로 분석하였다. 비조사 시료와 조사시료에서 각각 56종 ,54종의 화합물이 분리 동정되었으며, alcohol류, aldehyde류, ester류, ketone류, 함질소화합물과 함황화합물을 포함하고 있는 것이 확인되었다. 조사된 부추에 함유된 특징적인 휘발성 유기성분은 조사되지 않은 부추에서의 결과와 유사하였으나, 그 농도에 있어서는 눈에 띄는 차이를 보였다. 두 시료 모두에서 함황화합물이 다량 검출되어 주요 화합물임을 알 수 있었다. 성분들 중에서 다량의 dimethyl trisulfide와 methyl-(Z)-1-propenyl trisulfide가 함황화합물의 상대적 농도에 크게 기여하고 그 외 dimethyl disulfide, 3-ethyl-1,2-dithi-1,2-ene, methyl allyl disulfide와 (E)-2-hexanal도 휘발성 유기성분의 조성에 큰 비중을 차지하였다. 그 중 주된 화합물로 확인된 dimethyl trisulfide와 methyl-(Z)-propenyl trisulfide는 조사된 후 크게 감소된 것이 확인되었으며, 이외에도 (E)-2-hexanal과 3-ethyl-1,2-dithi-5-ene, diallyl trisulfide 역시 눈에 띄게 감소하였다. 이에 반하여 dimethyl disulfide는 조사 후 그 함량이 크게 증가하여 앞의 화합물들과는 다른 경향을 보였으며, 이외에도 diallyl sulfide와 allyl methyl sulfide, pyridine 등도 크게 증가하였다.

• 농약과학회지
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• 제3권1호
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• pp.46-50
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• 1999

민들레를 비롯하여 약용식물 9종 메탄올 추출물의 빨간 집모기, 집파리 유충 및 성충에 대한 살충력 실험을 실시하였다. 그 결과 빨간집모기(Culex pipiens pallens) 유충에 대하여는 솔(Pinus densiflora)잎, 고삼(Sophora angestifolia) 뿌리 등이 효과가 좋았다. 파리유충에 대한 살충효과는 민들레(Taraxacum platycarpum)잎 및 부추전초의 메탄올 추출물이 아주 높았으며, 백부근(Stemonae sessilifolia) 뿌리도 효과가 있는 것으로 밝혀졌으나 집파리(Musca domestica) 성충에 대한 살충효과는 크지 않았다.

• Journal of Plant Biology
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• 제17권3호
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• pp.113-117
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• 1974

In counting chromosome number and karyotype study, it is necessary to let chromosomes on metaphase by pretreatment before fixation. For this purpose, colchicine, or 8-oxyquinoline are generally used. The author found out that chromosomes could be scattered by illuminating cyanoferrate complex solution in which root-tips were sunk. As materials, 8 sorts of plant such as Allium fisturosum, allium tuberosum Rottler, Triticum vulgare were used. Their root-tips were sunk on the bottom of beaker in potassium ferricyanide solution $3{\times}10-4M$ and illuminated through the solution by sterilizing lamp for 1~2 hours in dark room, keeping 10 cm distance from light source to the surface of solution and 2cm depth of solution. Then again, they were illuminated to the light which was somewhat weaker intensity than the former (distance, 16cm; depth, 3cm) for 1.5~2 hours after immersed in 1/100N-HCl and washed in water for each 5minutes. By such methods chromosomes could be scattered. About the mechanism of scattering, it is supposed that CN and Fe(CN)x ions $(x {\leq}5)$ which were gradually produced in the process of photodissociation acted together on the scattering of chromosomes.

• 대한한방내과학회지
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• 제25권1호
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• pp.126-131
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• 2004

Between February 2002 and June 2003, A clinical study on Noctural Enurosis Patients had been conducted by the Department of Internal medicine at Dongshin University Oriental hospital. In this study, we treated nine patients with ear acupuncture using seed of Allium tuberosum ROTTLER and Herbal medicine. And we got the efficacious results. Moreover, the patients who were treated for more than 20days show more efficient result.

• 생약학회지
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• 제21권2호
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• pp.153-157
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• 1990

Total cholesterol level in mice with hypercholesterolemia was determined after intraperitoneal administration of the methanolic extract of some medicinal plants. From the data obtained, it was suggested that the methanolic extract of Elaeagnus crispa, Ixeris dentata, Prunus davidiana, Eriobotrya japonice, Aralia elata and Phragmites communis produced a significant hypocholesterotemic effect. In the case of the extract of Saussurea diamantiaca, on the other band, the total cholesterol level was markedly increased. The methanolic extract of Ixeris dentata, Prunus davidiana and Phragmites communes also decreased the level of blood glucose in alloxan-diabetic male albino mice while that of Eriobotrya japonica, Allium tuberosum, Houttuynia cordata and Eucommia japonica did not produce this effect.

• 한국식품영양과학회지
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• 제30권1호
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• pp.196-198
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• 2001

The growth retardation of Escherichia coli and Staphylococcus aureus by heat or acid treated leek (Allium tuberosum) extract was observed. Antimicrobial activity of the leek was the most effective when fresh leek extract was used, but it was stable after heat treatment at 68$^{\circ}C$ for 30 min or 98$^{\circ}C$ for 20 min. It was also relatively stable after incubated at pH 2.0 for 3 hrs. The antimicrobial activity in leek was not detected after dialysis with molecular weight cutoff of 12,000. Therefore it seems to be small molecule with molecular weight lower than 12,000.

• The Plant Pathology Journal
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• 제16권5호
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• pp.280-282
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• 2000

A leaf spot disease occurred on Allium tuberosum Roth. (Chinese chive) in Korea. All the isolates of Stemphylium sp. from the lesions of the diseased plant parts were identified as S. vesicarium (Waller.) Simmons, based on the morphological characteristics of conidia and conidiophores. Pathogenicity of the fungus was proved by artificial inoculation on Chinese chive plants. This is the first record of leaf blight on Chinese chive caused by S. vesicarium in Korea.