• Proceedings of the Korean Society of Food and Cookery Science Conference
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• 2005.10a
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• pp.122-122
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• 2005

• Journal of Food Hygiene and Safety
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• v.2 no.1
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• pp.3-8
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• 1987

ABSTRACT-Agricultural products collected from the suburbs of Chuncheon in 1984 were analyzed for carbamate pesticides by GLC-NPD. O-tert-butyl phenyl methyl carbamate(BPMC) was detected in most samples and their residue levels in strawberry, tomato, cucumber, grape, apple and chinese cabbage were in the range of non-detectable to 0.2356 ppm(Av. 0.0539 ppm). 1- naphthyl methyl carbamate(N AC) were detected in cucumber, grape and chinese cabbage and their residue levels were in the range of non-detectable to 0.0265 ppm. O-cumeryl methyl carbamate(MIPC) was detected in only chinese cabbage and its residue levels were in the range of non-detectable to 0.0059 ppm. Detection frequencies of BPMC, MIPC and NAC in the chinese cabbage were higher than those the others.others.

• Journal of Life Science
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• v.15 no.6 s.73
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• pp.1034-1036
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• 2005

Chinese cabbage (Brassica campestris ssp. napus var. pekinensis Makino) seeds/seedlings were transformed via vacuum-infiltration with recombinant Agrobacterium tumefaciens LBA4404 cells. The agroinfiltration method was determined to be unsuccessful for Chinese cabbage transformation during the analysis of hepatitis B surface antigen expression by ELISA. However, treatment of sodium hypochlorite solution, prior to agroinfiltration, to pregerminated or germinating 1 day- or 2 days-old seeds was proven effectively to enhance transformation efficiency, suggesting that chemical wounding caused by sodium hypochlorite reaction might facilitate Agrobacterium infection and, therefore, transient gene expression in Chinese cabbage sprouts.

• Horticultural Science & Technology
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• v.31 no.2
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• pp.211-218
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• 2013

This study was conducted to investigate the quality characteristics of eight Kimchi cabbage cultivars and the effect of cold storage on the quality of two kinds of cabbage cultivars, such as 'CR-Nongshim', and 'Ryouckgwang'. Early planted and harvested cultivars at July showed that fresh weight was lower than late harvested cultivars at September, because early harvesting time of July was heavy rainy season at highlands of Gangwon province. The firmness was more than 10 N for all cultivars and 'Cheongock', 'Sanjanggoon', and 'Ryouckgwang' cultivars had high value of firmness among them. No differences among the cultivars were found in appearance, freshness, and texture evaluations at harvest. Sweetness and bitterness had statistical differences and showed high value in 'Ryouckgwang' and in 'CR-Nongshim' and 'Sooho'. Two Kimchi cabbage cultivars such as 'CR-Nongshim' and 'Ryouckgwang' were stored at $0^{\circ}C$, $2^{\circ}C$, $5^{\circ}C$, and room temperature ($25^{\circ}C$) with more than 90% RH. Significant difference was found in weight loss during room and low temperature storage. In general, weight loss of the Kimchi cabbages at room temperature was significantly increased by 15% within 3 days, whereas it was delayed at low temperature until 3 weeks on all Kimchi cabbage cultivars. Firmness of 'CR-Nongshim' was higher than 'Ryouckgwang' but there was no difference within low storage temperatures. Appearance among the sensory factors was a critical indicator to estimate storage periods. On the point of appearance, storage period at $0^{\circ}C$ was 1 week and $2^{\circ}C$ and $5^{\circ}C$ was 3 weeks and 1 week in 'CR-Nongshim' cultivar, respectively. The storage period of 'Ryouckgwang' cultivar was 2 weeks, 4 weeks, and 2 weeks, respectively. Conclusively, storage at $2^{\circ}C$ with more than 90% RH was recommended as optimum temperature to maintain quality in both cultivars.

• Korean Journal of Organic Agriculture
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• v.17 no.2
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• pp.253-264
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• 2009

This study was conducted to establish agricultural practices to control diseases and insects for chemical pesticide-free cultivation of leafy vegetables. Two diseases, gray mold(Botrytis cinerea) and soft rot(Erwinia carotovora), on lettuce were reduced by controlling temperature and humidity using air-circulation fan. The aphidophagous lady beetle(Harmonia axyridis) and primary parasitoids(Aphidius colemani) showed activity to control aphids density on Chinese cabbage. Co-application of cooking oil and yolk mixture (COY) and BT(Bacillus thuringiensis) decreased diseases including soft rot(Erwinia carotovora), downy mildew(Peronospora brassicae Gaumann), and powdery mildew(Eryslphe polygoni), and insects such as diamondback moth(Plutella xylostella) and beet armyworm(Spodoptera exigua Hubner). Neem extract treatment reduced downy mildew(Peronospora destructor) on Welsh onion.

• Journal of the Korean Society of Food Science and Nutrition
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• v.29 no.1
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• pp.30-34
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• 2000

Salted Chinese cabbage was washed in 1,000 ppm solutions of grapefruit seed extract(GFSE) or citric acid, and used to make kimchi for the retentio of quality characteristics during fermentation at $10^{\circ}C$. Kimchi treated with GFSE or citric acid showed a retarded increase in titratable acidity and decrease in pH and reducing sugar content. Total microbial count and lactic acid bacteria of GFSE treated kimchi were about 1.1 log(CFU/g) lower than those of control and citric acid treated kimchi after making, but the difference was gradually reduced during fermentation.

• Journal of the Korea Organic Resources Recycling Association
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• v.27 no.3
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• pp.41-48
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• 2019

Mixed expeller cake has been one of soil management to improve crop productivity and soil fertility. But, there was a little information on optimum mixed expeller cake application for chinese cabbage. So, in this study, we were evaluated the preplant optimum application rate of mixed expeller cake(MEC) in chinese cabbage cultivation at field. Treatments consist of control, inorganic fertilizer($N-P_2O_5-K_2O$ : $320-78-198kg\;ha^{-1}$), MEC(50, 100, 150% on preplant application standard $110kg\;ha^{-1}$ as N, topdressing : $210kg\;ha^{-1}$ as N). In results, growth characteristics was not significantly different. But, yield was increased when application rate was increased. And MEC 150% treatment showed similar yield as inorganic treatment. There was no significant difference in soil pH, OM, $Av.P_2O_5$, $NH_4-N$ and Ex.K. But, soil EC and $NO_3-N$ were increased when MEC level increased. As a results, MEC 150% can be proposed as preplant optimum application rate of MEC from this study. But abuse of MEC and long-term using caused about salt accumulation in soil.

• The Science & Technology
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• v.14 no.12 s.151
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• pp.9-10
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• 1981

• Food Industry And Nutrition
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• v.1 no.1
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• pp.50-70
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• 1996

• Life and Agrochemicals
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• s.270
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• pp.22-25
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• 2011